Abstract:
An assembler mechanism for picking up and presenting one workpiece to another for precise bonding notwithstanding the motions of transportation includes a support seat, a first picking member, a first driving member, a second picking member, and a positioning assembly. The first picking member is mounted on the support seat and fetches a first workpiece when driven by the first driving member. The second picking member is connected to and also driven by the first driving member to fetch a second workpiece. The positioning assembly is mounted on the support seat, and includes a positioning member, a movable member located corresponding to the positioning member, and a second driving member connected to the movable member. The movable member can be driven by the second driving member toward or away from the positioning member to achieve unvarying and stable presentations.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure generally relates to assembler mechanisms, and particularly to an assembler mechanism for assembling two workpieces together during a welding process. 
         [0003]    2. Description of the Related Art 
         [0004]    In a production process, a first workpiece may be bonded to a second workpiece, and then the two bonded workpieces are moved. For improving work efficiency, a robot equipped with an assembler mechanism is used to fetch the first workpiece and bond the first workpiece to the second workpiece. However, when moving the first workpiece, the assembler mechanism may shake or change position slightly, thus a bonding position of the first workpiece and the second workpiece may deviate from a predetermined position. A quality of the bonding may thus be adversely affected. 
         [0005]    Therefore, there is room for improvement within the art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         [0006]    The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
           [0007]      FIG. 1  shows an assembled, isometric view of an embodiment of an assembler mechanism. 
           [0008]      FIG. 2  is similar to  FIG. 1 , but viewed from another aspect. 
           [0009]      FIG. 3  shows a partial and exploded view of the assembler mechanism of  FIG. 1 . 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.” 
         [0011]      FIGS. 1 through 3  show an assembler mechanism  100 , which is applied for fetching a first workpiece (not shown) and a second workpiece (not shown) and bonding the first workpiece to the second workpiece. The assembler mechanism  100  includes a support seat  10 , a plurality of first picking members  30 , two driving members  40 , four second picking members  50 , two positioning assemblies  80 , and a limiting assembly  90 . The first picking members  30  are mounted on the support seat  10 , for picking the first workpieces. The two driving members  40  are mounted on opposite end portions of the support seat  10 . Each of the two second picking members  50  is connected to and driven by one driving member  40 , and passes through the support seat  10 , for picking the second workpiece. The two positioning assemblies  80  are located on sides of the support seat  10 . The limiting assembly  90  is located on a middle portion of the support seat  10 . The positioning assemblies  80  are configured to position the second workpiece along a first direction. The limiting assembly  90  is configured to position the second workpiece along a second direction. 
         [0012]    The support seat  10  includes a support base  11 , a connection member  13 , and a plurality of guiding rails  15 . The support base  11  is a substantially rectangular plate, and includes a first support surface  113  and a second support surface  115  opposite to the first support surface  113 . The connection member  13  is securely mounted on the first support surface  113 . The second support surface  115  defines two first mounting slots  1151  adjacent to one side thereof (shown in  FIG. 3 ). The two first mounting slots  1151  are substantially parallel to and spaced from each other. The second support surface  115  further defines a second mounting slot  1153  substantially perpendicular to the first mounting slots  1151  and a third mounting slot  1155  crosses with the second mounting slot  1153  in a middle portion thereof. One guiding rail  15  is mounted in each of the first mounting slots  1151 , in the second mounting slot  1153 , and in the third mounting slot  1155 . The first picking members  30  are mounted on the support base  11  spaced from each other and protruding from the second support surface  115 . 
         [0013]    The two driving members  40  are securely mounted on opposite end portions of the first support surface  113 . Each driving member  40  includes a main body  41  and a driving portion  43  connected to the main body  41 . The main body  41  is securely mounted on the first support surface  113 . A middle portion of the driving portion  43  is connected to and driven by the main body  41 . The driving portion  43  includes two mounting end portions  431  opposite to each other. 
         [0014]    Each second picking member  50  is mounted on one mounting end portion  431  of the two driving members  40 , and passes through the support seat  10  and protrudes out from the second support surface  115 . Each second picking member  50  includes a connection portion  51  and a suction portion  53  connected to the connection portion  51 . The connection portion  51  passes through the support base  11  and is movable therein. One end portion of the connection portion  51  is connected to the mounting end portion  431 , and the other end portion of the connection portion  51  is connected to the suction portion  53 , such that the connection portion  51  and the suction portion  53  are movable relative to the support base  11  when driven by the corresponding driving member  40 . When the first picking member  30  is in an original state, a distance from a free end of the first picking member  30  to the support base  11  is greater than a distance from a free end of the suction portion  53  to the support base  11 , such that when the first picking members  30  fetches the first workpiece, the second picking members  50  may not intervene. 
         [0015]    In an illustrated embodiment, the connection portion  51  is hollow and substantially cylindrical, and connected to a vacuum generator (not shown), such that the second workpiece can be picked up and released by the suction portion  53 . In other embodiments, the second picking members  50  can be in other structures according to the second workpiece. 
         [0016]    The two positioning assemblies  80  are located on the second supporting surface  115  side by side. Each of the positioning assemblies  80  includes a positioning member  70 , a movable member  81 , and a driving member  83 . The positioning members  70  are mounted on the second support surface  115 , each corresponding to the two first mounting slots  1151 . The movable member  81  is connected to the guiding rail  15  in the first mounting slot  1151 . The driving member  83  is mounted on the second support surface  115 , for driving a movable member  81  to slide along the guiding rail  15  in the first mounting slot  1151  toward or away from the positioning member  70 . 
         [0017]    The limiting assembly  90  includes two limiting members  91 , a pushing member  93 , a driving member  95 , and a plurality of locking members  97 . The two limiting members  91  are mounted on two guiding rails  15  in the second mounting slot  1153 , and aligned in one straight line. Each limiting member  91  includes a main body  913 , a limiting end  915 , and a pushing end  917 . The main body  913  is securely mounted on the second support surface  115 , and defines a sliding through slot  9131 . The limiting end  915  bends through substantially ninety degrees from one end portion of the main body  913 . The pushing end  917  is formed on the other end portion of the main body  913  opposite to the limiting end  915 . The pushing end  917  defines a first sliding portion  9171 . The pushing member  93  is slidably mounted on one guiding rail  15  in the third mounting slot  1155 . The pushing member  93  defines a sliding through slot  931 . The pushing member  93  includes two second sliding portion  933  engaged with the first sliding portions  9171  of the two limiting members  91 . 
         [0018]    In the illustrated embodiment, the first sliding portion  9171  is an oblique sliding groove in the pushing end  917  and the second sliding portion  933  is a protrusion engaged with the oblique sliding groove. In other embodiments, the first sliding portion  9171  can also be arc-shaped groove. The driving member  95  is fixedly mounted on the second support surface  115  away from the positioning member  70 , and is connected to the pushing member  93 . When the driving member  95  drives the pushing member  93 , the two limiting members  91  move toward or away from each other. Each locking member  97  passes through one of the sliding slots  9131  and the sliding through slots  931 , and is securely connected to the support base  11 . 
         [0019]    The assembler mechanism  100  further includes four blocking members  20 . Each blocking member  20  is mounted on the second support surface  115  adjacent to one of the four second picking members  50 . 
         [0020]    In assembly, the first picking members  30  are mounted on the support base  11  according to the positions required for the welding of the second workpiece. The two driving members  40  are mounted on opposite end portions of the first support surface  113 . Each two second picking members  50  are mounted on opposite mounting end portions  431  of one driving member  40 . The two positioning members  70  are mounted on the second support surface  115 . Each movable member  81  is slidably mounted on the guiding rail  15  in the first mounting slot  1151 , and each driving member  83  is mounted on the second support surface  115  and connected to a movable member  81 . Two limiting members  91  are slidably mounted on the guiding rail  15  in the second mounting slot  1153 , and the pushing ends  917  of the two limiting members  91  are adjacent to each other. The pushing member  93  is slidably mounted on the guiding rail  15  in the third mounting slot  1153  and crossed with the two limiting members  91 , such that the two second sliding portion  933  are engaged with the first sliding portions  9171  of the two limiting members  91 . One end portion of the connection member  13  away from the support base  11  is fixed to a robot arm (not shown). 
         [0021]    In use, first, the first picking member  30  picks up a first workpiece. The second picking members  50  are moved to and pick up a second workpiece, and then are stopped by the blocking member  20 . The two positioning members  70  resist against opposite sides of the second workpiece, the first workpiece contacts a surface of the second workpiece. The movable members  81  are moved toward the positioning members  70 , and the two limiting members  91  are moved toward each other, such that the second workpiece is positioned along two directions. Then, the assembler mechanism  100  is moved to a laser station, for example, for the robot arm to weld the first workpiece to the second workpiece. 
         [0022]    The positioning assemblies  80  and the limiting assembly  90  can cooperatively position the first workpiece and the second workpiece, such that during motion of the assembler mechanism  100 , the first workpiece will not deviate from the second workpiece. Thus, a welding quality and yield is improved. 
         [0023]    In other embodiments, the first mounting slots  1151 , the second mounting slot  1153 , and the third mounting slot  1155  can be omitted, and the guiding rails  15  can be directly mounted on the support base  11 . A number of the driving members  40  and the second picking members  50  can be changed as needed, and the position of the driving members  40  can be changed as needed. The positioning assemblies  80  can be omitted, and the second workpiece can be positioned by the limiting assembly  90 . The limiting assembly  90  can be omitted, and the second workpiece can be positioned by the positioning assemblies  80 . 
         [0024]    While the present disclosure has been described with reference to particular embodiments, the description is illustrative of the disclosure and is not to be construed as limiting the disclosure. Therefore, various modifications can be made to the embodiments by those of ordinary skill in the art without departing from the true spirit and scope of the disclosure, as defined by the appended claims.