Patent Publication Number: US-10772248-B2

Title: Electronic component installing device

Description:
TECHNICAL FIELD 
     The present disclosure relates to an electronic component installing device which holds and installs an electronic component on a board by applying a negative pressure to a suction hole of a nozzle. 
     BACKGROUND ART 
     In a component mounting field where a mounting board is produced by installing an electronic component on a board, a method of suctioning and holding the electronic component under a negative pressure by a nozzle provided in an installing head of an electronic component installing device is widely used. In this type of electronic component installing device, a configuration in which the nozzle can be installed to be freely replaceable in a nozzle holder provided in a nozzle shaft provided in the installing head, is employed, and accordingly, it is possible to attach and detach the nozzle for changing the type of the nozzle that corresponds to the shape or the size of the electronic component that serves as a work target, or for the maintenance (for example, refer to Patent Literatures 1 and 2). 
     In the technology of the related art in Patent Literature 1, an example in which a lower end of a head main body portion is a nozzle holder, and a filter for filtering the air suctioned from the nozzle is freely attachably and detachably installed in a filter holder formed at a position at which a vent port of the head main body portion opens at the lower end, is described. In addition, in the technology of the related art in Patent Literature 2, a configuration in which a filter is stored on the inside of a nozzle main body portion (flange) provided with a storage unit in which a suction shaft portion (one end portion) protrudes and is stored, in a vacuum suction nozzle installed on a nozzle holder, is described. 
     CITATION LIST 
     Patent Literature 
     
         
         PTL 1: Japanese Patent Unexamined Publication No. 2008-34410 
         PTL 2: Japanese Patent Unexamined Publication No. 2012-143861 
       
    
     SUMMARY OF THE INVENTION 
     An electronic component installing device according to the present disclosure includes: a nozzle which holds an electronic component by applying a negative pressure to a suction hole that is open in a tip end portion of the nozzle; a main shaft which includes a nozzle holder that detachably holds the nozzle in a lower end portion of the main shaft; a main shaft holding unit which holds the main shaft in a state of being raisable and lowerable; and a raising and lowering mechanism which raises and lowers the main shaft. The nozzle holder has a tubular shape having an insertion hole into which an installed portion of the nozzle is inserted. The nozzle holder includes a holder tube portion in which an opening portion leading to the insertion hole is formed on one side surface of the holder tube portion, one clamp lever which has an engaging portion engaged via the opening portion with the installed portion inserted into the insertion hole, and a first elastic member which biases the engaging portion to the installed portion inserted into the insertion hole. 
     According to the present disclosure, in the configuration in which the nozzle which holds the electronic component under a negative pressure is held to be freely attachable and detachable to and from the nozzle holder, it is possible to realize the reduction of the size of the nozzle and the nozzle holder. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view illustrating the overall configuration of an electronic component installing device according to an embodiment of the present disclosure. 
         FIG. 2  is a configuration explanatory view of an installing head used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 3  is a partial sectional view of an installing head used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 4  is a front view of a nozzle holder in a main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 5  is a side view of the nozzle holder in the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 6  is a sectional view of the nozzle holder in the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 7  is a perspective view of the nozzle holder in the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 8  is a sectional view of a holder tube portion of the nozzle holder in the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 9  is a sectional view of the nozzle holder in the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 10  is a sectional view illustrating a state where a cartridge in the nozzle holder used in the electronic component installing device according to the embodiment of the present disclosure, is detached. 
         FIG. 11  is a partial side view of a shaft linking unit of the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 12  is a partial perspective view illustrating a configuration of the shaft linking unit of the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 13  is a partial sectional view of a shaft linking unit of the main shaft used in the electronic component installing device according to the embodiment of the present disclosure. 
         FIG. 14  is a functional explanatory view of a shaft linking unit of the main shaft used in the electronic component installing device according to the embodiment of the present disclosure, shown as a partial sectional view. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Prior to describing the embodiments, problems in the related art will be briefly described. 
     In recent years, the miniaturization of electronic components has progressed following the decrease in size of the electronic components of a mobile device or the like, and accordingly, it has been required to further reduce the diameter and the size of the nozzle for holding the electronic components or the nozzle holder for holding the nozzle, compared to the related art. However, in the examples of the above-described patent documents, a configuration for realizing the reduction of the size of the nozzle or the nozzle holder is not disclosed in the technology of the related art, and a new strategy for reacting to such a request has been demanded. 
     Here, an object of the present disclosure is to provide an electronic component installing device which can realize the reduction of the size of the nozzle and the nozzle holder in the configuration in which the nozzle which holds the electronic component under a negative pressure is held to be freely attachable and detachable to and from the nozzle holder. 
     Next, embodiments of the present disclosure will be described with reference to the drawings. First, a structure of electronic component installing device  1  will be described with reference to  FIG. 1 . Hereinafter, a transport direction of a board is defined as an X direction, a direction orthogonal to the X direction and a horizontal plane is defined as a Y direction, a direction orthogonal to an XY plane is defined as a Z direction, and a direction in the horizontal plane that rotates around the Z direction is defined as θ direction. A positive direction of a Z axis is an upper part and an upward direction, and a negative direction of the Z axis is a lower part and a downward direction. In each member, an end portion positioned in the positive direction of the Z axis is defined as an upper end, and an end portion positioned in a negative direction of the Z axis is defined as a lower end. 
     Electronic component installing device  1  has a function of applying a negative pressure to a suction hole of a nozzle, holding an electronic component by vacuum-sucking the electronic component, and installing the electronic component on a board. In  FIG. 1 , board transport mechanism  2  including one pair of transport conveyors which extends in the X direction is provided at the center portion of base  1   a . Board transport mechanism  2  receives and transports board  3  which is a component installation target from an upstream side device, and positions and holds the board at an installation working position by a component placing mechanism which will be described hereinafter. 
     On both sides of board transport mechanism  2 , component supplier  4  is provided. Component supplier  4  is configured with a plurality of tape feeders  5  arranged in parallel on feeder table  4   a . Tape feeder  5  supplies the electronic component which is an installation target to a pickup position by installing head  8  of the component placing mechanism, by pitch feeding a carrier tape which stores the electronic component installed on board  3  therein. 
     Next, the component placing mechanism will be described. At the end portion of base  1   a  in the X direction, Y-axis beam  6  having a linear driving mechanism is disposed, and X-axis beam  7  having a linear driving mechanism is installed to be freely movable in the Y direction in Y-axis beam  6 . Plate member  9  is installed to be freely movable in the X direction on X-axis beam  7 , and installing head  8  is installed on plate member  9  via holding frame  10 . 
     Installing head  8  has a function of picking up and holding electronic component P (refer to  FIG. 4 ) installed on board  3  from component supplier  4  by nozzle  20  (refer to  FIGS. 2 and 4 ). As the nozzle  20 , a suction nozzle which holds electronic component P by applying a negative pressure generated under a negative pressure generation source to a suction hole that is open in a tip end portion, is used. Installing head  8  horizontally moves in the X direction and in the Y direction by driving Y-axis beam  6  and X-axis beam  7 , and electronic component P held by nozzle  20  is installed on board  3  positioned and held by board transport mechanism  2 . 
     Next, with reference to  FIGS. 2 and 3 , a structure of installing head  8  will be described. In  FIG. 2 , installing head  8  has a structure in which a side surface and an upper surface are covered by holding frame  10  and cover  8   a  fixed to holding frame  10 . Rotor holding unit  11  is provided to extend in the horizontal direction in a lower portion of holding frame  10 . In rotor holding unit  11 , columnar main shaft holding unit  12  that serves as a rotor is freely rotatably held around rotation axis CL in the Z direction via bearing  11   a  (refer to  FIG. 3 ). 
     In main shaft holding unit  12 , a plurality of main shafts  15  are held in a state of being raisable and lowerable by raising and lowering mechanism  25  in a concentric disposition around rotation axis CL. The main shaft  15  includes nozzle holder  19  for holding nozzle  20  to be freely attachable and detachable in the lower end portion thereof. In the present embodiment, main shaft  15  is divided into first shaft  17  (an upper portion of the main shaft) and second shaft  18  (a lower portion of the main shaft) that are linked to raising and lowering mechanism  25  that raises and lowers main shaft holding unit  12 . Second shaft  18  is configured to include nozzle holder  19  and a part held by main shaft holding unit  12 . First shaft  17  and second shaft  18  are linked to each other via shaft linking unit  16  provided in the lower end portion of first shaft  17  (refer to  FIGS. 11 and 12 ). 
     Holding body driven gear  13  around rotation axis CL is fixed to the upper surface of main shaft holding unit  12 , and index driving motor  14  is disposed above rotor holding unit  11 . Index driving gear  14   a  which meshes with holding body driven gear  13  is installed on index driving motor  14 . By driving index driving motor  14 , holding body driven gear  13  is driven via index driving gear  14   a , and accordingly, main shaft holding unit  12  index-rotates together with holding body driven gear  13  (arrow a). 
     In  FIG. 2 , in the upper portion of holding frame  10 , cam holding unit  21  for fixing cylindrical cam  22  is provided to extend in the horizontal direction. Guide groove  22   a  is provided on an outer circumferential surface of cylindrical cam  22 . Guide groove  22   a  is provided so as to be higher on a side opposite to holding frame  10  and to gradually decrease as approaching holding frame  10 . Cam follower  23  attached to first shaft  17  of each main shaft  15  is installed on cylindrical cam  22  so as to be movable along guide groove  22   a . When main shaft holding unit  12  index-rotates, main shaft  15  vertically moves along guide groove  22   a  of cylindrical cam  22  while circulating in the horizontal direction following the index rotation. A part of cylindrical cam  22  is cut off at a location where guide groove  22   a  is the lowest, and guide groove  22   a  is interrupted at a cut-off location. 
     Between holding frame  10  and cylindrical cam  22 , raising and lowering mechanism  25  is disposed. Raising and lowering mechanism  25  includes screw shaft  24   a  which extends in the Z direction, raising and lowering motor  24  which rotationally drives screw shaft  24   a , and nut  24   b  which is screwed to screw shaft  24   a . Nut  24   b  is provided with cam follower holder  24   c  which is movable to be raised and lowered along the cut-off location of cylindrical cam  22 . Cam follower holder  24   c  is raised and lowered together with nut  24   b  by driving raising and lowering motor  24 . Cam follower holder  24   c  has a shape which complements guide groove  22   a  cut off at the cut-off location. 
     Cam follower  23  which has moved along guide groove  22   a  is disengaged from guide groove  22   a  at this position and is held after being transferred to cam follower holder  24   c  which stands by at the same height position as guide groove  22   a . When raising and lowering motor  24  is driven in this state, cam follower holder  24   c  and cam follower  23  are raised and lowered together with cam follower  23  (arrow b). As illustrated in  FIG. 3 , substantially L-shaped joint portion  17   a  is installed on the upper end portion of first shaft  17  to be freely rotatable in the θ direction, and cam follower  23  is attached to joint portion  17   a  while a rotation axis around the horizontal direction is oriented outward. With this configuration, when cam follower  23  is raised and lowered, first shaft  17  coupled thereto via joint portion  17   a  is raised and lowered, and accordingly, nozzle  20  held by nozzle holder  19  of the lower end portion of second shaft  18  linked to first shaft  17  via shaft linking unit  16  is raised and lowered (arrow c). 
     In other words, the position of main shaft  15  which holds cam follower  23  by cam follower holder  24   c  is determined as rising and lowering position M at which main shaft  15  is raised and lowered in order to suction and pick up electronic component P by nozzle  20  or to install held electronic component P on board  3 . In rotor holding section  11 , component recognition unit  26  for imaging electronic component P held by nozzle  20  from below, is provided. Component recognition unit  26  has a function of imaging a state of electronic component P held by nozzle  20  from below at a timing when nozzle  20  in the lower end portion of main shaft  15  held by main shaft holding unit  12  is positioned at component recognition position R by the index rotation of main shaft holding unit  12 . 
     In other words, component recognition unit  26  includes mirrors  26   b  which are respectively provided below component recognition position R and below camera  26   a . By guiding imaging light of electronic component P held by nozzle  20  positioned at component recognition position R to camera  26   a  by mirrors  26   b , the image of electronic component P held by nozzle  20  is obtained, and by performing recognition processing with respect to the obtained images, identification of electronic component P and a positional shift state are recognized. When placing electronic component P on board  3 , correction of the installation position of the position of main shaft  15  in installing head  8  in the θ direction and the position in the XY direction by the component placing mechanism is performed, taking into consideration the recognition result of electronic component P by component recognition unit  26 . 
     Next, with reference to  FIG. 3 , a configuration of a rotational driving system and a suction and exhaust system of main shaft  15  in installing head  8  will be described. In addition, main shaft  15  illustrated in the embodiment has a configuration in which first shaft  17  including cam follower  23 , joint portion  17   a , nozzle rotation gear  37 , and shaft linking unit  16  in the lower end portion thereof, and second shaft  18  including nozzle holder  19  in the lower end portion, are linked to each other via shaft linking unit  16 . 
     As illustrated in  FIG. 3 , second shaft  18  of main shaft  15  is inserted through through-hole  30  provided to vertically penetrate main shaft holding unit  12 . An inner diameter of through-hole  30  is set to be greater than an outer diameter of second shaft  18 , and in a state where second shaft  18  is inserted through through-hole  30 , void portion  30   a  is formed on the inside of through-hole  30 . 
     Bearing portions  31  are installed on both of the upper and lower end portions of each through-hole  30 , and second shaft  18  is slidably and airtightly fitted to bearing portion  31 . Accordingly, in a state where void portion  30   a  is sealed to the outside, main shaft  15  can be raised and lowered and rotated around the axis. 
     In  FIG. 3 , on the upper surface of main shaft holding unit  12 , fitting hole  12   a  around rotation axis CL of main shaft holding unit  12  is provided. Columnar rotating body  35  which vertically penetrates cylindrical cam  22  is freely rotatably provided with respect to main shaft holding unit  12  by inserting rotating body tip end portion  35   a  into fitting hole  12   a  via bearing  35   b.    
     In the vicinity of the upper end portion of rotating body  35 , θ rotation driven gear  28  around rotation axis CL is fixed. Above cylindrical cam  22 , θ rotation motor  27  on which θ rotation driving gear  27   a  that meshes with θ rotation driven gear  28  is installed, is disposed. θ rotation driven gear  28  rotates in the θ direction via θ rotation driving gear  27   a  by the driving of θ rotation motor  27 . Accordingly, rotating body  35  rotates in the θ direction together with θ rotation driven gear  28  (arrow d). 
     Between main shaft holding unit  12  and cylindrical cam  22  in rotating body  35 , nozzle driving gear  36  which extends to be long in the vertical direction corresponding to the raising and lowering stroke of main shaft  15  is coupled. Nozzle rotation gear  37  is coupled to each main shaft  15  at a position at which nozzle rotation gear  37  meshes with nozzle driving gear  36 . Each main shaft  15  rotates in the θ direction at the same time through nozzle rotation gear  37  by the driving of nozzle driving gear  36  (arrow e). In this manner, main shaft  15  rotates in the θ direction by the driving of θ rotation motor  27 , and accordingly, nozzle  20  held by nozzle holder  19  in the lower end portion of second shaft  18  also rotates in the θ direction (the arrow f). 
     Next, the suction and exhaust system of installing head  8  will be described. In  FIG. 3 , on the inside of second shaft  18 , shaft inner hole  18   a  of which the lower end portion leading to nozzle  20  is provided. Shaft inner hole  18   a  communicates with vent hole  40   a  provided in nozzle holder  19  and nozzle flow path  20   g  (refer to  FIG. 6 ) provided in nozzle  20  via filter  62 . Above shaft inner hole  18   a , there is provided second shaft opening portion  18   b  which is open to the outer circumferential surface of second shaft  18  at a position between two upper and lower bearing portions  31  and communicates with void portion  30   a . Even when main shaft  15  vertically moves, second shaft opening portion  18   b  is positioned within a range of void portion  30   a  sandwiched between two upper and lower bearings  31 . 
     On the inside of main shaft holding unit  12 , common flow path  12   b  which is open on the upper surface of fitting hole  12   a  provided at the upper center of main shaft holding unit  12  is provided in the longitudinal direction along rotation axis CL. Common flow path  12   b  communicates with rotating body inner hole  35   c  provided on the inside of rotating body  35  fitted to fitting hole  12   a . Rotating body inner hole  35   c  communicates with negative pressure generation source  33  via pipe  29  connected to the upper end portion of rotating body  35 . By actuating negative pressure generation source  33 , it is possible to apply a negative pressure by suctioning the inside of common flow path  12   b  via rotating body inner hole  35   c . Therefore, common flow path  12   b  is a negative pressure side flow path that applies a negative pressure to nozzle  20 . 
     In addition, common flow path  12   b  communicates with void portion  30   a  of each through-hole  30  via flow path switching section  32  provided on the inside of main shaft holding unit  12 . Flow path switching section  32  has a function of switching a nozzle side flow path that communicates with nozzle  20 , that is, a connection point of nozzle flow path  20   g  of communicating nozzle  20  which communicates with void portion  30   a , and further communicates via second shaft opening portion  18   b , shaft inner hole  18   a , and nozzle holder  19 . With the connection point switching function, as the connection point of nozzle  20 , any of common flow path  12   b  which is a negative pressure side flow path for applying a negative pressure to nozzle  20  and a positive pressure side flow path (not illustrated) for applying a positive pressure to nozzle  20 , is selected and switched. By performing the flow path switching in this manner, it is possible to select and execute suctioning and holding due to a negative pressure of electronic component P by nozzle  20  and releasing due to the positive pressure of held electronic component P. 
     Next, with reference to  FIGS. 4 to 10 , the configuration and the function of nozzle holder  19  provided in the lower end portion of second shaft  18  which configures main shaft  15  will be described. As illustrated in  FIG. 4 , nozzle holder  19  provided in the lower end portion of second shaft  18  includes holder tube portion  40 , clamp lever  50 , fulcrum spring  58  for biasing and fixing clamp lever  50  with respect to holder tube portion  40 , and clamp spring  59 . The lower end of nozzle holder  19  is nozzle receiving portion  40   b  (also refer to  FIGS. 7 and 8 ) of holder tube portion  40 , and in a state where nozzle  20  is installed and held by nozzle holder  19 , the upper surface of flange portion  20   b  of nozzle  20  abuts against nozzle receiving portion  40   b . In this state, by applying a negative pressure to nozzle  20 , electronic component P is held on the suction surface of tip end portion  20   a.    
     Here, the configuration of nozzle  20  held by nozzle holder  19  will be described with reference to  FIG. 6 . In nozzle holder  19 , nozzle  20  includes tip end portion  20   a  provided with suction hole  20   f  for suctioning and holding electronic component P, and installed portion  20   c  which is a part installed in nozzle holder  19  to be freely attachable and detachable, and flange portion  20   b  which abuts against nozzle receiving portion  40   b  during the installation on nozzle holder  19  is provided to extend to a side. 
     Furthermore, large diameter portion  20   d  provided in the end portion on the upper side, and engaged portion  20   e  for engaging engaging portion  57  of clamp lever  50  and fixing nozzle  20 , are provided in installed portion  20   c . On the inside of nozzle  20 , nozzle flow path  20   g  (first suction path) which penetrates from tip end portion  20   a  to installed portion  20   c  is provided leading to suction hole  20   f  which is open in tip end portion  20   a.    
     In addition, nozzle  20  holds electronic component P in tip end portion  20   a  by vacuum-sucking under a negative pressure introduced into nozzle flow path  20   g . In addition, above installed portion  20   c  of nozzle holder  19 , cartridge  60  including filter holding body  61  which holds filter  62  for filtering the air suctioned from nozzle  20  on the inside, is stored. 
     Next, with reference to  FIGS. 7 and 8 , the shapes and the functions of holder tube portion  40  and clamp lever  50  will be described. As illustrated in  FIG. 7 , holder tube portion  40  is a tubular member having insertion hole  41  into which installed portion  20   c  (refer to  FIG. 6 ) provided in nozzle  20  is inserted. As illustrated in  FIGS. 7 and 8  (a section taken along the line A-A in  FIG. 7 ), opening portion  41   a  leading to insertion hole  41  is formed on one side surface (upper surface in  FIG. 7 ) of insertion hole  41 . 
     On the side surface of the range in which opening portion  41   a  is formed in holder tube portion  40 , three notch portions, such as first notch portion  42 , second notch portion  43 , and third notch portion  44 , are formed from the upper side. The notch portions have a shape in which a tube portion of holder tube portion  40  is partially removed by a plane parallel to opening portion  41   a . Furthermore, at positions where second notch portion  43  and third notch portion  44  are formed, fulcrum spring holding unit  46  and clamp spring holding unit  47  are formed, respectively. One clamp lever  50  having the shape illustrated in  FIG. 7  is fitted to opening portion  41   a.    
     Clamp lever  50  has a function of locking installed portion  20   c  inserted into insertion hole  41  with engaging portion  57  provided in working unit  52  described hereinafter. In other words, in the present embodiment, engaging portion  57  of one clamp lever  50  is engaged with installed portion  20   c  of nozzle  20  inserted into insertion hole  41  via opening portion  41   a . By employing the configuration in which nozzle  20  is locked by single clamp lever  50  in this manner, the reduction of the size of nozzle holder  19  is realized. 
     The clamp lever  50  has a circumferential surface having a curvature which is substantially similar to that of the outer circumference of the part at which opening portion  41   a  is formed in holder tube portion  40  on the upper surface, and is a deformed member having a shape of a plane that can be inserted into opening portion  41   a , first notch portion  42 , second notch portion  43 , and third notch portion  44 . The detailed shape and function of clamp lever  50  will be described. The center portion of clamp lever  50  is fulcrum portion  51 . In fulcrum portion  51 , extending portion  51   a  having a shape that can be fitted to second notch portion  43  is provided to extend to both sides, and abutting fulcrum  56  which abuts against fulcrum support unit  45  on the lower surface of extending portion  51   a  and becomes the center when clamp lever  50  swings is provided. 
     A position which extends downward from fulcrum portion  51  is working unit  52 . In working unit  52 , extending portion  52   a  having a shape that can be fitted to third notch portion  44  is provided to extend on both sides. In addition, on the lower surface of working unit  52 , engaging portion  57  having a shape that is engaged with engaged portion  20   e  of installed portion  20   c  inserted into insertion hole  41  is provided (also refer to  FIG. 6 ). Furthermore, a position which extends upward from fulcrum portion  51  is operation unit  53 , and extending portion  53   a  having a shape that can be fitted to first notch portion  42  is provided to extend to both sides in operation unit  53 . 
     In other words, as illustrated in the above-described configuration, clamp lever  50  is configured to include fulcrum portion  51 , working unit  52  that extends downward from fulcrum portion  51 , and operation unit  53  that extends upward from fulcrum portion  51 . In addition, as described above, a configuration in which, three notch portions, such as first notch portion  42 , second notch portion  43 , and third notch portion  44 , are formed on the side surface of holder tube portion  40 , and at least a part of clamp lever  50  is disposed on the inner side of the notch portions, is achieved. In this manner, by disposing a part of clamp lever  50  in the notch portion formed in holder tube portion  40 , the size of the outer shape of nozzle holder  19  can be reduced. 
     Fulcrum portion side groove  54  having a shape of a narrow groove is provided between fulcrum portion  51  and operation unit  53 , and working unit side groove  55  having a shape of a wide groove is provided between working unit  52  and fulcrum portion  51 . As illustrated in  FIGS. 4 and 5 , when installing clamp lever  50  on holder tube portion  40 , first, extending portions  53   a ,  51   a , and  52   a  are fitted to first notch portion  42 , second notch portion  43 , and third notch portion  44 , respectively. At this time, abutting fulcrum  56  provided on the lower surface of extending portion  51   a  abuts against fulcrum support unit  45  (refer to  FIG. 7 ) which is a notch surface of second notch portion  43 . In other words, in holder tube portion  40 , fulcrum supporting unit  45  for supporting abutting fulcrum  56  is provided in second notch portion  43 . In this manner, by using second notch portion  43  provided in holder tube portion  40  as fulcrum support unit  45  for supporting clamp lever  50 , it is possible to reduce the size of the outer shape of nozzle holder  19 . 
     At the outer circumference of fulcrum portion side groove  54  and fulcrum spring holding unit  46 , fulcrum spring  58  using a coil spring which is spirally wound to circulate around fulcrum portion side groove  54  and fulcrum spring holding unit  46  is installed. Fulcrum spring  58  is a second elastic member for biasing abutting fulcrum  56  of fulcrum portion  51  of clamp lever  50  to fulcrum support unit  45 . Accordingly, clamp lever  50  is held in a state where abutting fulcrum  56  of fulcrum portion  51  abuts against fulcrum support unit  45 , and is placed in a state of being swingable around abutting fulcrum  56  by fulcrum support unit  45 . 
     With such a configuration, as clamp lever  50  swings around abutting fulcrum  56  of fulcrum portion  51 , the following functions are realized. In other words, a structure in which engaging portion  57  formed in working unit  52  is advanced into insertion hole  41  on the inside of holder tube portion  40  by displacing working unit  52  side toward the inside of holder tube portion  40 , is achieved. On the other hand, when operation unit  53  side is displaced toward the inside of holder tube portion  40 , working unit  52  opens outward, the locking of installed portion  20   c  inserted into insertion hole  41  of holder tube portion  40  can be released, and as will be described later, cartridge  60  can go in and out of insertion hole  41  via entrance  41   b  (refer to  FIG. 7 ) (refer to  FIG. 10 ). 
     In other words, engaging portion  57  which is engaged with installed portion  20   c  of nozzle  20  inserted into insertion hole  41  via opening portion  41   a  in a state where entrance  41   b  of insertion hole  41  is blocked, is formed in clamp lever  50  having the above-described configuration. Accordingly, an engaging function for being engaged with nozzle  20  and for being fixed and installed on nozzle holder  19 , and a coming-off preventing function for preventing cartridge  60  from being coming-off prevented by blocking opening portion  41   a  of insertion hole  41  by engaging portion  57  in a case where nozzle  20  does not exist, are provided. In addition, in the present embodiment, a configuration in which nozzle holder  19  includes only one clamp lever  50  having such a function, and nozzle  20  is locked and cartridge  60  is prevented from coming off only by one clamp lever  50 , is achieved, and it has been realized to make nozzle holder  19  smaller and more compact. 
     In a state illustrated in  FIG. 5 , that is, in a state where nozzle  20  is inserted and held by holder tube portion  40 , nozzle receiving portion  40   b  of holder tube portion  40  is positioned to be lower than the lower end portion  50   a  of clamp lever  50 . Accordingly, the lower end part of holder tube portion  40  functions as a bumper for protecting clamp lever  50 , and damage to the lower end portion of clamp lever  50  due to collision of nozzles or other foreign substances can be prevented. 
     In the present embodiment, similar to the configuration, in a configuration in which clamp lever  50  is held by the elastic members, such as fulcrum spring  58  or clamp spring  59 , defects, such as deviation of the fulcrum due to the application of an unexpected external force and dropping of clamp lever  50  can be prevented. In addition, nozzle receiving portion  40   b  of holder tube portion  40  serves as a nozzle receiving member which abuts against flange portion  20   b  of nozzle  20  installed on nozzle holder  19 , and it is possible to prevent rattling of nozzle  20  installed on nozzle holder  19 . 
     At the outer circumference of clamp spring holding unit  47  of holder tube portion  40  and working unit side groove  55  of clamp lever  50 , clamp spring  59  which is spirally wound to circulate around clamp spring holding unit  47  and working unit side groove  55 , and uses a compression coil spring, is installed. Clamp spring  59  is a first elastic member that biases engaging portion  57  of fulcrum portion  51  to installed portion  20   c  inserted into insertion hole  41 . At this time, clamp spring  59  sets clamp spring  59  is wound to circulate around working unit side groove  55  of clamp lever  50  and clamp spring holding unit  47  of holder tube portion  40 . In this state, as illustrated in  FIG. 5 , nozzle holder  19  is installed in a state where a part of clamp lever  50  and holder tube portion  40  is inserted into inner diameter space  59   a  of clamp spring  59 , and in a state where clamp spring  59  comes into contact with clamp lever  50  and holder tube portion  40 . 
     In an aspect in which clamp lever  50  is held by clamp spring  59  in holder tube portion  40  in this manner, in the present embodiment, since working unit side groove  55  is set to be narrower than clamp spring holding unit  47 , clamp spring  59  is more substantially compressed in the vertical direction than the other part, that is, clamp spring holding unit  47  side of holder tube portion  40 , by working unit side groove  55  on clamp lever  50  side. In other words, a part of clamp spring  59  which comes into contact with clamp lever  50  is more compressed than the other part, by clamp lever  50 . 
     Accordingly, in clamp spring  59  which uses the compression coil spring having a configuration of winding a plurality of coil rings, a plurality of coil rings  59 * positioned on the lower side are wound in a state of being inclined between slopes between clamp spring holding unit  47  and working unit side groove  55 . 
     Accordingly, a tension (arrow g) that does not occur in a usual state of use of the compression coil spring acts on coil rings  59 * in the inclined state. 
     In addition, by the tension, an engaging force acts on fulcrum portion  51  provided with working unit side groove  55  in the inward direction of holder tube portion  40 , that is, in the direction of pressing engaging portion  57  to installed portion  20   c  installed on insertion hole  41 . Accordingly, by a compact configuration using small clamp spring  59 , it is possible to apply a sufficiently large force in the closing direction to clamp lever  50 , and it is possible to stably lock installed portion  20   c.    
     As illustrated in  FIG. 8 , vent hole  40   a  for introducing a negative pressure into insertion hole  41  is provided in the upper end portion of insertion hole  41  provided in holder tube portion  40 , and vent hole  40   a  is connected to negative pressure generation source  33  via rotating body inner hole  35   c  illustrated in  FIG. 3 . In other words, vent hole  40   a  configures a second suction path linked to negative pressure generation source  33  and in nozzle holder  19  having the above-described configuration, installed portion  20   c  of nozzle  20  is inserted into insertion hole  41  formed to communicate with a terminal of the second suction path, and nozzle  20  is held to be freely attachable and detachable. In addition, insertion hole  41  has a function of inserting and storing cartridge  60  having filter  62  for filtering the air suctioned from nozzle  20 . 
     In addition, the lower side of insertion hole  41  is open entrance  41   b , and is an entrance when inserting cartridge  60  (refer to  FIG. 6 ) stored in nozzle holder  19  or installed portion  20   c  of nozzle  20  thereinto. Furthermore, in a far portion of insertion hole  41 , the upper end portion of cartridge  60  inserted into insertion hole  41  abuts, and stopper  41   c  which is a position regulating surface for regulating the position, is provided. 
     Next, with reference to  FIGS. 6, 9, and 10 , cartridge  60  which is used in electronic component installing device  1  provided with nozzle holder  19  having the above-described configuration, and is installed on nozzle holder  19  in a state of being inserted into holder tube portion  40 , and an attaching and detaching structure of cartridge  60  will be described. 
       FIG. 6  illustrates a state where cartridge  60  is stored in nozzle holder  19 , and further, nozzle  20  is held by nozzle holder  19 . First, a configuration of cartridge  60  will be described. Cartridge  60  is configured to include tubular filter holding body  61  which is inserted into insertion hole  41 ; filter  62  which is disposed in inner space  61   a  of filter holding body  61 ; annular packing  63  which is disposed at one end portion  61   b  of filter holding body  61 ; vent hole  61   e  which is provided on the inside of the other end portion  61   c  of filter holding body  61 ; and pad  64  which is disposed in the other end portion  61   c.    
     Filter holding body  61  has an outer dimension that can be inserted into insertion hole  41  formed in holder tube portion  40 , and has inner space  61   a  which penetrates from one end portion  61   b  to the other end portion  61   c . Filter  62  is disposed in inner space  61   a  and has a function of filtering the air suctioned from nozzle flow path  20   g  which is the first suction path. Packing  63  abuts against stopper  41   c  provided at the far portion of insertion hole  41 , and accordingly, vent hole  40   a  which is the second suction path and inner space  61   a  are airtightly connected to each other. Pad  64  abuts against large diameter portion  20   d  of installed portion  20   c  inserted into insertion hole  41 , and accordingly, nozzle flow path  20   g  and inner space  61   a  are airtightly connected to each other. 
     Only by inserting filter  62 , packing  63 , and cartridge  60  integrated with pad  64  into insertion hole  41  in this manner, it is possible to easily attach and detach cartridge  60  to and from nozzle holder  19 , and the workability of the filter attachment and detachment work has been substantially improved. 
     Furthermore, by interposing packing  63  and pad  64  simply above and below cartridge  60 , not only the airtightness is secured, but also the effect of relaxing the shock when attaching and detaching nozzle  20  is achieved. 
     Here, a structure of filter  62  installed on inner space  61   a  in filter holding body  61  will be described. Filter  62  is configured to include base portion  62   a  which comes into contact with inner wall  61   d  on inner space  61   a  side of filter holding body  61 , filtering unit  62   b  which protrudes from base portion  62   a  toward the other end portion  61   c  side of filter holding body  61  in a state where there is a gap between inner wall  61   d  and filtering unit  62   b , and a recess portion  62   c  which is open to base portion  62   a.    
     By employing an installation structure of filter  62  on filter holding body  61  by such a simple method, a special structure for fixing filter  62  to filter holding body  61  is not required, and a cartridge having a small and simple configuration is realized. In addition, by making the sectional shape of filtering unit  62   b  be U shape, and by making filtering unit  62   b  be non-contact with inner wall  61   d  of filter holding body  61 , it is possible to ensure a large filtration area with a size having a small diameter, and it is possible to reduce the size of filter  62  and to improve filtration performance at the same time. 
     In addition, in a state where filter  62  is installed on filter holding body  61 , an aspect in which base portion  62   a  protrudes from inner space  61   a  of filter holding body  61 , and packing  63  is held in the protrusion portion thereof, is achieved. Accordingly, it is not necessary to provide a special structure for fixing packing  63  to filter holding body  61 , and packing  63  can be installed only by simply holding annular packing  63  at the outer circumference of cylindrical base portion  62   a.    
       FIG. 9  illustrates a state where nozzle  20  is detached from the state illustrated in  FIG. 6 . Detachment of nozzle  20  is performed by applying a force to nozzle  20  by a manual operation or a nozzle changer in a drawing direction (arrow h). In other words, due to the withdrawing force, engaging portion  57  of working unit  52  is released from engaged portion  20   e  against biasing force of clamp spring  59 , and accordingly, the locking of installed portion  20   c  is released and nozzle  20  can be detached from nozzle holder  19 . In addition, when holding nozzle  20  in nozzle holder  19 , an operation of inserting and pushing installed portion  20   c  into insertion hole  41  is performed. Accordingly, engaging portion  57  of working unit  52  is engaged with engaged portion  20   e , and installed portion  20   c  is locked. 
     When nozzle  20  is detached from nozzle holder  19  in this manner, a locking target does not exist at the position which corresponds to fulcrum portion  51  in insertion hole  41  on the inside of holder tube portion  40 . In the present embodiment, since clamp lever  50  can swing around abutting fulcrum  56  of fulcrum portion  51 , working unit  52  of clamp lever  50  is displaced to insertion hole  41  side by the biasing force of fulcrum spring  58  (arrow i). In addition, engaging portion  57  of displaced working unit  52  advances into insertion hole  41  to achieve a state where entrance  41   b  is blocked, and prevents stored cartridge  60  from coming off and dropping. With such a configuration, clamp lever  50  can also serve to prevent cartridge  60  from coming off, and it is possible to reduce to the size of nozzle holder  19 . 
       FIG. 10  illustrates a state where cartridge  60  is attached and detached to and from nozzle holder  19  in a state where nozzle  20  is detached from nozzle holder  19 . In this case, operation unit  53  side of clamp lever  50  is displaced to inner side of holder tube portion  40  by a manual operation (arrow j). Accordingly, clamp lever  50  swings only by a predetermined rotation amount around abutting fulcrum  56  (refer to  FIG. 4 ) of fulcrum portion  51 , and working unit  52  is displaced in the direction to open outward (arrow k). Accordingly, engaging portion  57  of working unit  52  is retracted from insertion hole  41 , and cartridge  60  can go in and out (arrow m) of insertion hole  41  via entrance  41   b.    
     As the operation illustrated in  FIGS. 9 and 10  becomes possible, even in a state where only cartridge  60  is stored in nozzle holder  19  during automatic replacement of nozzle  20 , cartridge  60  is prevented from falling off. In addition, when necessary, cartridge  60  can be taken out or exchanged from insertion hole  41  of nozzle holder  19  only by operating clamp lever  50 . In the present embodiment, since cartridge  60  has a simple configuration for holding filter  62  on the inside of tubular filter holding body  61 , cartridge  60  can easily go in and out of insertion hole  41  of nozzle holder  19 . 
     Next, with reference to  FIGS. 11 to 14 , a linking structure between first shaft  17  and second shaft  18  which configure main shaft  15  will be described.  FIG. 11  illustrates a state where insertion end portion  18   c  (refer to  FIG. 12 ) provided in the upper end portion of first shaft  17  is inserted into shaft linking unit  16  provided in the lower end portion of first shaft  17 , and second shaft  18  is held in shaft linking unit  16 . 
     As illustrated in  FIG. 12 , in a predetermined range of the upper end of second shaft  18 , insertion end portion  18   c  having a shape of which one surface is D-cut is provided. Groove portion  18   d  is linearly formed in a lower portion of insertion end portion  18   c  in the direction orthogonal to the axial direction of main shaft  15 . Shaft linking unit  16  provided in the lower end portion of first shaft  17  is configured to include shaft holder tube portion  70 , shaft clamp lever  80 , and clamp spring  89  ( FIG. 11 ). Clamp spring  89  has a function as an elastic member which biases shaft clamp lever  80  to groove portion  18   d  of insertion end portion  18   c  installed on shaft holder tube portion  70 . 
     Shaft holder tube portion  70  has a tubular shape having shaft insertion hole  71  into which insertion end portion  18   c  of second shaft  18  is inserted, and shaft holder opening portion  71   a  leading to shaft insertion hole  71  is formed on one side surface thereof. On the side surface of the substantial center portion of shaft holder opening portion  71   a  in shaft holder tube portion  70 , notch portion  72  having a shape in which a tube portion of shaft holder tube portion  70  is partially cut off by a surface parallel to shaft holder opening portion  71   a , is formed. Furthermore, at a position at which notch portion  72  is formed, fulcrum spring holding unit  75  is formed. 
     One shaft clamp lever  80  having the shape illustrated in  FIG. 12  is fitted to shaft holder opening portion  71   a , shaft clamp lever  80  has a function for locking insertion end portion  18   c  inserted into shaft insertion hole  71  with shaft clamp lever engaging portion  87  provided in shaft clamp lever working unit  82  which will be described hereinafter. In other words, in the present embodiment, shaft clamp lever engaging portion  87  of one shaft clamp lever  80  is engaged with groove portion  18   d  of insertion end portion  18   c  inserted into shaft insertion hole  71  via shaft holder opening portion  71   a . By employing a configuration in which insertion end portion  18   c  is locked by single shaft clamp lever  80  as described above, the reduction of the size of nozzle holder  19  is realized, second shaft  18  can be linked and detached from first shaft  17  only by operating one shaft clamp lever  80 , and thus, the operability at the time of operation is improved. 
     The detailed shape and the function of shaft clamp lever  80  will be described. The center portion of shaft clamp lever  80  is shaft clamp lever fulcrum part  81 . In shaft clamp lever fulcrum portion  81 , extending portion  81   a  having a shape that can be fitted to notch portion  72  is provided to extend to both sides, and abutting fulcrum  86  which abuts against shaft holder fulcrum support unit  74  on the lower surface of extending portion  81   a  and becomes the center when shaft clamp lever  80  swings is provided. The position that extends downward from shaft clamp lever fulcrum portion  81  is shaft clamp lever working unit  82 . On the lower surface of shaft clamp lever working unit  82 , shaft clamp lever engagement portion  87  having a shape that is engaged with groove portion  18   d  of insertion end portion  18   c  inserted into shaft insertion hole  71  is provided on the lower surface (also refer to  FIG. 13 ). 
     Furthermore, the position that extends upward from shaft clamp lever fulcrum portion  81  is shaft clamp lever operation unit  83 . 
     In other words, as illustrated in the above-described configuration, shaft clamp lever  80  is configured to include shaft clamp lever fulcrum portion  81 , shaft clamp lever working unit  82  which extends downward from shaft clamp lever fulcrum portion  81 ; and shaft clamp lever operation unit  83  which extends upward from shaft clamp lever fulcrum portion  81 . In addition, as described above, notch portion  72  is formed on the side surface of shaft holder tube portion  70 , and at least a part of shaft clamp lever  80  is configured to be disposed on the inside of notch portion  72 . In this manner, by disposing a part of shaft clamp lever  80  in the notch portion formed in shaft holder tube portion  70 , the size of the outer shape of shaft linking unit  16  can be reduced. 
     Fulcrum portion side groove  84  having a shape of a narrow groove is provided in shaft clamp lever fulcrum portion  81 , and working unit side groove  85  having a shape of a wide groove is provided in shaft clamp lever working unit  82 . As illustrated in  FIG. 11 , when installing shaft holder tube portion  70  on shaft clamp lever  80 , first, extending portion  81   a  is fitted to notch portion  72 . At this time, abutting fulcrum  86  provided on the lower surface of extending portion  81   a  abuts against shaft holder fulcrum support unit  74  (refer to  FIG. 12 ) which is a notch surface of notch portion  72 . In other words, in shaft holder tube portion  70 , shaft holder fulcrum supporting unit  74  for supporting abutting fulcrum  86  is provided in notch portion  72 . In this manner, by using notch portion  72  provided in shaft holder tube portion  70  as shaft holder fulcrum supporting unit  74  for supporting shaft clamp lever  80 , it is possible to reduce the size of the outer shape of shaft linking unit  16 . 
     At the outer circumference of fulcrum portion side groove  84  and fulcrum spring holding unit  75 , shaft clamp lever fulcrum spring  88  using a coil spring which is spirally wound to circulate around fulcrum portion side groove  84  and fulcrum spring holding unit  75  is installed. Shaft clamp lever fulcrum spring  88  has a function for biasing abutting fulcrum  86  of shaft clamp lever fulcrum portion  81  of shaft clamp lever  80  to shaft holder fulcrum support unit  74 . Accordingly, shaft clamp lever  80  is held in a state where abutting fulcrum  86  of shaft clamp lever fulcrum portion  81  abuts against shaft holder fulcrum support unit  74 , and is placed in a state of being swingable around abutting fulcrum  86  by shaft holder fulcrum support unit  74 . 
     With such a configuration, as shaft clamp lever  80  swings around abutting fulcrum  86  of shaft clamp lever fulcrum portion  81 , the following functions are realized. In other words, by displacing shaft clamp lever working unit  82  side toward the inside of shaft holder tube portion  70 , a structure in which shaft clamp lever engaging portion  87  formed in shaft clamp lever working unit  82  is advanced into shaft insertion hole  71  on the inside of shaft holder tube portion  70 , is achieved. On the other hand, when shaft clamp lever operation unit  83  side is displaced toward the inner side of shaft holder tube portion  70 , the shaft clamp lever working unit  82  opens outward, the locking of insertion end portion  18   c  inserted into shaft insertion hole  71  of shaft holder tube portion  70  is released, and it is possible to release the linking between first shaft  17  and second shaft  18  by shaft linking unit  16 . 
     At the outer circumference of clamp spring holding unit  47  of shaft holder tube portion  70  and working unit side groove  85  of shaft clamp lever  80 , clamp spring  89  which is spirally wound to circulate around clamp spring holding unit  47  and working unit side groove  85 , and uses a compression coil spring, is installed. Clamp spring  89  is an elastic member that biases shaft clamp lever engaging portion  87  of shaft clamp lever working unit  82  to groove portion  18   d  of insertion end portion  18   c  inserted into shaft insertion hole  71 . At this time, clamp spring  89  sets clamp spring  89  is wound to circulate around working unit side groove  85  of shaft clamp lever  80  and clamp spring holding unit  76  of shaft holder tube portion  70 . In this state, as illustrated in  FIG. 13 , an aspect in which a part of shaft clamp lever  80  and shaft holder tube portion  70  is inserted into inner diameter space  89   a  of clamp spring  89  is achieved, and clamp spring  89  is installed on shaft linking unit  16  in a state of coming into contact with shaft clamp lever  80  and shaft holder tube portion  70 . 
     In an aspect in which shaft clamp lever  80  is held by clamp spring  89  in shaft holder tube portion  70  in this manner, in the present embodiment, since working unit side groove  85  is set to be narrower than clamp spring holding unit  76 , clamp spring  89  is more substantially compressed in the vertical direction than the other part, that is, clamp spring holding unit  76  side of shaft holder tube portion  70 , by working unit side groove  85  on shaft clamp lever  80  side. In other words, a part of clamp spring  89  which comes into contact with shaft clamp lever  80  is more compressed than the other part, by shaft clamp lever  80 . Accordingly, in clamp spring  89  having a configuration in which a plurality of coil rings are wound, a plurality of coil rings  89 * (refer to  FIG. 11 ) positioned on the lower side are wound in a state of being inclined between working unit side groove  85  and clamp spring holding unit  76 . 
     Accordingly, a tension (arrow n) that does not occur in a usual state of use of the compression coil spring acts on coil rings  89 * in the inclined state. In addition, with the tension, the locking force acts on shaft clamp lever working unit  82  provided with the working unit side groove  85  in the inward direction of shaft holder tube portion  70 , that is, in the direction of pushing shaft clamp lever engaging portion  87  with respect to groove portion  18   d  of insertion end portion  18   c  inserted into shaft insertion hole  71 . Accordingly, by a compact configuration using small clamp spring  89 , it is possible to apply a sufficiently large force in the closing direction to shaft clamp lever  80 , and it is possible to stably lock groove portion  18   d  of insertion end portion  18   c  and to prevent defects, such as occurrence of vibrations in shaft linking unit  16 . 
       FIG. 13  illustrates a state where first shaft  17  and second shaft  18  are linked to each other via shaft linking unit  16  having the above-described configuration provided on first shaft  17 . In other words, insertion end portion  18   c  of second shaft  18  is inserted into shaft insertion hole  71  provided in shaft holder tube portion  70  from below, and abutting portion  18   e  (also refer to  FIG. 12 ) of second shaft  18  is pressed until abutting against receiving end portion  70   b  of shaft holder tube portion  70 . In the operation, first, shaft clamp lever working unit  82  is pushed out against the biasing force of clamp spring  89  by the end portion of insertion end portion  18   c . Next, groove portion  18   d  provided in insertion end portion  18   c  reaches the position of shaft clamp lever engaging portion  87 , and accordingly, shaft clamp lever engaging portion  87  is engaged with groove portion  18   d  and is locked by the biasing force of clamp spring  89 . 
       FIG. 14  illustrates an operation for detaching second shaft  18  from the linked state illustrated in  FIG. 13 . In other words, in the detaching operation, first, shaft clamp lever operation unit  83  of shaft clamp lever  80  is pressed by a finger or the like, and is pushed into shaft insertion hole  71  (arrow o). By this operation, shaft clamp lever  80  swings around abutting fulcrum  86  ( FIG. 12 ) of shaft clamp lever fulcrum portion  81 , and shaft clamp lever working unit  82  is displaced in the direction to open outward against the biasing force of clamp spring  89  (arrow p). Accordingly, the engaged state of shaft clamp lever engaging portion  87  with groove portion  18   d  is released, and the operation of pulling out insertion end portion  18   c  from shaft insertion hole  71  (arrow q) becomes possible. 
     In the detaching operation, it is possible to pick up second shaft  18  only with a simple pressing operation targeting one shaft clamp lever  80 . In addition, in main shaft  15 , since there are no component or the like which interferes with the work between shaft linking unit  16  and main shaft holding unit  12  (refer to  FIG. 2 ) positioned at the lower part of first shaft  17 , it is possible to perform an operation of taking first shaft  17  and second shaft  18  in and out with excellent workability. 
     As described above, in the electronic component installing device according to the present embodiment, nozzle holder  19  which attachably and detachably holds nozzle  20  in the lower end portion of main shaft  15  is configured to have a shape of a tube having insertion hole  41  into which installed portion  20   c  of nozzle  20  is inserted, and to include holder tube portion  40  in which opening portion  41   a  leading to insertion hole  41  is formed on one side surface of nozzle holder  19 , clamp lever  50  including engaging portion  57  that is engaged with installed portion  20   c  of nozzle  20  inserted into insertion hole  41  via opening portion  41   a , and clamp spring  59  which is biased to installed portion  20   c  of nozzle  20  in which engaging portion  57  is inserted into insertion hole  41 . Accordingly, in the configuration in which nozzle  20  which holds the electronic component under a negative pressure is held to be freely attachable and detachable to and from nozzle holder  19 , it is possible to realize the reduction of the size of nozzle  20  and nozzle holder  19 . 
     In addition, in the electronic component installing device illustrated in the present embodiment, in a configuration in which cartridge  60  including filter  62  for filtering the air suctioned from nozzle  20  is stored in nozzle holder  19 , nozzle holder  19  includes insertion hole  41  for inserting and storing cartridge  60  from entrance  41   b  thereof, tubular holder tube portion  40  having vent hole  40   a  for introducing a negative pressure into insertion hole  41 , and clamp lever  50  in which engaging portion  57  engaged with installed portion  20   c  of nozzle  20  installed into insertion hole  41  in a state where entrance  41   b  of insertion hole  41  is blocked, is formed, and when nozzle  20  is detached from nozzle holder  19 , clamp lever  50  prevents cartridge  60  in insertion hole  41  from coming off being displaced to insertion hole  41  side. Accordingly, in the configuration in which cartridge  60  which holds nozzle  20  for holding the electronic component under a negative pressure to be freely attachable and detachable in nozzle holder  19 , and which includes filter  62  for filtering the air suctioned from nozzle  20 , is provided, it is possible to reduce the size of nozzle holder  19 , and to easily store and pick up cartridge  60  to and from nozzle holder  19 . 
     In addition, in the cartridge for the electronic component installing device according to the present embodiment, cartridge  60  stored in nozzle holder  19  is configured to include: filter holding body  61  which has an external dimension that is insertable into insertion hole  41 , and has inner space  61   a  that penetrates from one end portion  61   b  to the other end portion  61   c ; filter  62  which is disposed in inner space  61   a , and filters the air suctioned from nozzle flow path  20   g  that serves as the first suction path; annular packing  63  which is disposed in one end portion  61   b  of filter holding body  61 , and abuts against stopper  41   c  provided in a far portion of insertion hole  41  so as to airtightly connect vent hole  40   a  that serves as a second suction path and inner space  61   a  to each other; and pad  64  which is disposed in the other end portion  61   c  of filter holding body  61 , and is made of an elastic material which abuts against installed portion  20   c  inserted into insertion hole  41  so as to airtightly connect nozzle flow path  20   g  and inner space  61   a  to each other. Accordingly, in the configuration in which cartridge  60  including filter  62  for filtering the air suctioned from nozzle  20 , is provided, it is possible to reduce the size of nozzle holder  19 , to improve the filtration performance of filter  62 , and to improve the workability at the time of attachment and detachment. 
     Furthermore, in the electronic component installing device according to the present embodiment, in the configuration in which main shaft  15  having nozzle holder  19  for attachably and detachably holding nozzle  20  in the lower end portion thereof is divided into first shaft  17  which is the main shaft upper portion linked to raising and lowering mechanism  25  and second shaft  18  which is the main shaft lower portion including a part held by nozzle holder  19  and main shaft holding unit  12 , the configuration in which shaft linking unit  16  for inserting and holding insertion end portion  18   c  provided in second shaft  18  in the lower end portion of first shaft  17  is provided, groove portion  18   d  which is linearly formed in the direction orthogonal to the axial direction of main shaft  15  is provided in insertion end portion  18   c  of second shaft  18 , shaft clamp lever  80  which is engaged with groove portion  18   d  in shaft linking unit  16  and clamp spring  89  that serves as an elastic member for biasing shaft clamp lever  80  to groove portion  18   d  are provided, is employed. Accordingly, in the configuration in which main shaft  15  including nozzle holder  19  which holds nozzle  20  is divided into two to be vertically attachable and detachable via shaft linking unit  16 , it is possible to make the structure of shaft linking unit  16  small and simple, and to improve the workability during the attachment and detachment. 
     INDUSTRIAL APPLICABILITY 
     An electronic component installing device of the present disclosure has an effect that it is possible to reduce the size of the nozzle and the nozzle holder in a configuration in which the nozzle for holding the electronic component under a negative pressure to be freely attachable and detachable in the nozzle holder, and is useful in a component installing field where the electronic component is suctioned and held under a negative pressure by the nozzle. 
     REFERENCE MARKS IN THE DRAWINGS 
     
         
         
           
               1  ELECTRONIC COMPONENT INSTALLING DEVICE 
               8  INSTALLING HEAD 
               12  MAIN SHAFT HOLDING UNIT 
               15  MAIN SHAFT 
               16  SHAFT LINKING UNIT 
               17  FIRST SHAFT 
               18  SECOND SHAFT 
               19  NOZZLE HOLDER 
               20  NOZZLE 
               20   a  TIP END PORTION 
               20   g  NOZZLE FLOW PATH 
               20   c  INSTALLED PORTION 
               25  RAISING AND LOWERING MECHANISM 
               40  HOLDER TUBE PORTION 
               40   a  VENT HOLE 
               40   b  NOZZLE RECEIVING PORTION 
               41  INSERTION HOLE 
               41   a  OPENING PORTION 
               41   c  STOPPER 
               45  FULCRUM SUPPORT UNIT 
               50  CLAMP LEVER 
               51  FULCRUM PORTION 
               52  WORKING UNIT 
               53  OPERATION UNIT 
               57  ENGAGING PORTION 
               58  FULCRUM SPRING (SECOND ELASTIC MEMBER) 
               59  CLAMP SPRING (COMPRESSION COIL SPRING, FIRST ELASTIC MEMBER) 
               60  CARTRIDGE 
               61  FILTER HOLDING BODY 
               62  FILTER 
               63  PACKING 
               64  PAD 
               70  SHAFT HOLDER TUBE PORTION 
               71  SHAFT HOLDER INSERTION HOLE 
               80  SHAFT CLAMP LEVER 
               81  SHAFT CLAMP LEVER FULCRUM PORTION 
               82  SHAFT CLAMP LEVER WORKING UNIT 
               83  SHAFT CLAMP LEVER OPERATION UNIT 
               87  ENGAGING PORTION 
               89  CLAMP SPRING