Abstract:
The present invention relates to a head lamp assembling device of a front end module of a vehicle, which is capable of locating a head lamp of the vehicle in an exact position of a fender of the vehicle. The head lamp assembling device includes: a carrier assembling stand for fixing the carrier; position adjusting means for adjusting a position of the head lamp; and movable means for moving the position adjusting means of the head lamp.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a head lamp assembling device of a front end module of a vehicle, and more particularly, to a head lamp assembling device capable of locating a head lamp of a vehicle in an exact position of a fender of the vehicle.  
           [0003]    2. Background of the Related Art  
           [0004]    In general, essential parts of a vehicle are largely divided into a chassis part and a body part. The chassis part has the minimum function necessary for self-actuated traveling of the vehicle, and an engine and devices necessary for traveling are mounted on a frame of the chassis part.  
           [0005]    The body part is to accommodate people and freights of various kinds, and includes a room, a freight compartment, an engine room, a trunk room, a fender, and so on.  
           [0006]    The chassis part is mounted on the body part. However, recently, a radiator, head lamps, a bumper assembly, and so on, which are mounted on the front part of the vehicle, are not individually mounted on the body part but respectively mounted on a carrier for simplification of assembly and reduction of the number of assembling processes to form a front end module (FEM). The front end module is carried to an automobile manufacturing factory, and then, mounted on the front body part of a vehicle.  
           [0007]    [0007]FIG. 1 shows a carrier and a head lamp of a head lamp assembling device according to the present invention. The head lamp and the carrier are almost the same as the prior arts in their structure, and so, will be described referring to the drawing of the present invention.  
           [0008]    As shown in FIG. 1, the head lamp  100  is fixed to a head lamp mounting part  203  of the carrier  200 . The head lamp  100  has a fixing member (not shown) formed at the rear surface thereof for mounting the head lamp  100  on the carrier  200 , and the head lamp mounting part  203  of the carrier  200  also has a fixing member (not shown) for fixing the head lamp  100 .  
           [0009]    Conventionally, when the head lamp  100  is mounted on the carrier  200 , the head lamp  100  is located on the head lamp mounting part  203  of the carrier  200 , and the fixing members (not shown) are fixed to each other for a complete fixation.  
           [0010]    However, the head lamp  100  of the vehicle is generally mounted on the carrier  200  in such a manner to be moved somewhat for replacement of a bulb or others, and so, the head lamp  100  may be moved during an assembling process, and there may occur errors according to the position of the fixing members (not shown) and a tightening level of tightening means such as bolts. Therefore, the conventional head lamp assembling device has a problem in that an undesired clearance is generated between the fender of the vehicle and the head lamp  100  when the carrier  200 , on which the head lamp  100  is mounted, is mounted on the vehicle, and thereby, the assembling status of the vehicle becomes bad.  
           [0011]    Furthermore, if only the position between the carrier and the head lamp is fixed, when the carrier is mounted on the vehicle, the interval between the fender of the vehicle and the head lamp becomes too wide or too narrow, and thereby, a bad assembly is generated.  
         SUMMARY OF THE INVENTION  
         [0012]    Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a device and a method for assembling a head lamp, which can prevent generation of undesired interval between a fender and a head lamp when a carrier on which the head lamp is mounted is assembled to the vehicle as a fender dummy of the same shape as the fender of the vehicle is assembled in an exact position.  
           [0013]    To achieve the object, according to the invention, there is provided a head lamp assembling device for assembling a head lamp onto a carrier comprising: a carrier assembling stand for fixing the carrier; position adjusting means for adjusting a position of the head lamp; and movable means for moving the position adjusting means of the head lamp.  
           [0014]    It is preferable that the position adjusting means of the head lamp is a fender dummy of a shape corresponding to a fender part of the vehicle, on which the head lamp is mounted.  
           [0015]    It is preferable that the carrier assembling stand includes a vertical frame and a horizontal frame, the vertical frame having a horizontal fixing jig for fixing and supporting the carrier in the horizontal direction, the horizontal frame having a vertical fixing jig for fixing and supporting the carrier  200  in the vertical direction.  
           [0016]    It is preferable that the horizontal fixing jig includes: a horizontal position adjusting pin to be inserted into a horizontal position adjusting hole formed in the carrier for fixing the horizontal position of the carrier; and a drive unit for moving the horizontal position adjusting pin.  
           [0017]    It is preferable that the vertical fixing jig includes: a vertical position adjusting pin to be inserted into a vertical position adjusting hole formed in the carrier for fixing the vertical position of the carrier; and a drive unit for moving the vertical position adjusting pin.  
           [0018]    It is preferable that the carrier assembling stand has at least one or more measuring sensors for checking whether or not the head lamp is positioned in the exact position. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0019]    The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention in conjunction with the accompanying drawings, in which:  
         [0020]    FIG. 1  is a view showing a carrier and a head lamp of a head lamp assembling device according to a preferred embodiment of the present invention;  
         [0021]    [0021]FIG. 2 a  is a front view of the carrier;  
         [0022]    [0022]FIG. 2 b  is a plan view of the carrier;  
         [0023]    [0023]FIG. 3 a  is a front view of a carrier assembling stand of the head lamp assembling device according to the preferred embodiment of the present invention;  
         [0024]    [0024]FIG. 3 b  is a side view of FIG. 3 a;    
         [0025]    [0025]FIG. 4 a  is a perspective view of a fender dummy and a fender dummy drive unit according to the preferred embodiment of the present invention;  
         [0026]    [0026]FIG. 4 b  is a side view of FIG. 4 a;    
         [0027]    [0027]FIG. 5 is a front view of a measuring sensor of the head lamp assembling device according to the preferred embodiment of the present invention;  
         [0028]    [0028]FIG. 6 a  is a front view of an assembling process of the head lamp according to a head lamp assembling method; and  
         [0029]    [0029]FIG. 6 b  is a side view of FIG. 6 a.   
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0030]    Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Only one side parts of the head lamp assembling device will be described as both side parts thereof have the same structure.  
         [0031]    A head lamp assembling device according to the present invention includes a head lamp  100 , a carrier  200  on which the head lamp  100  is fixed, a carrier assembling stand  300  on which the carrier is fixed, a fender dummy  400 , and an drive unit  401  for operating the fender dummy  400 .  
         [0032]    [0032]FIG. 2 shows the carrier  200 , wherein FIG. 2 a  is a front view of the carrier  200 , and FIG. 2 b  is a plan view.  
         [0033]    As shown in the drawings, the head lamp  100  is fixed to a head lamp mounting part  203  of the carrier  200  by fixing means (not shown) such as bolts. The carrier  200  has horizontal and vertical position adjusting holes  201  and  202  formed in the front and upper surfaces thereof for inserting vertical and horizontal position adjusting pins  301  and  302 , which will be described later.  
         [0034]    The carrier  200  whose lower portion is fixed to a pallet (not shown) is carried onto a table  303  of the carrier assembling stand  300  by a conveyer belt.  
         [0035]    [0035]FIG. 3 a  is a front view of the carrier assembling stand according to the present invention, and FIG. 3 b  is a side view of FIG. 3 a.    
         [0036]    As shown in FIGS. 3 a  and  3   b , the carrier assembling stand  300  includes a vertical frame  307  and a horizontal frame  308 . The table  303  is mounted on the lower portion of the carrier assembling stand  300 , and the pallet (not shown) is located on the table  303 . Moreover, the carrier assembling stand  300  has the vertical position adjusting pin  301  mounted on the upper portion thereof, the vertical position adjusting pin  301  ascending and descending by a drive unit  301 - 1 . The vertical position adjusting pin  301  descends when the head lamp  100  is assembled to the carrier  200 , and is inserted into the vertical position adjusting hole  202  formed in the upper surface of the carrier  200  to fix the carrier  200 .  
         [0037]    Additionally, the carrier assembling stand  300  has the horizontal position adjusting pin  302  mounted on the rear surface thereof, which is horizontally movable by another drive unit  302 - 1  (see FIG. 3 b ). The horizontal position adjusting pin  302  is moved toward the carrier  100  horizontally (in the left direction in FIG. 3 b ) when the head lamp  100  is assembled to the carrier  200 , and inserted into the horizontal position adjusting hole  201  formed in the front surface of the carrier  200  to fix the carrier  200 .  
         [0038]    [0038]FIG. 4 a  is a perspective view of the fender and the fender dummy drive unit according to the present invention, and FIG. 4 b  is a side view of FIG. 4 a.    
         [0039]    As shown in FIGS. 4 a  and  4   b , the fender dummy drive units  401  are mounted on both sides of the carrier assembling stand  300  (shown one of them in the drawings), and each of the fender dummies  400  is fixed to each of the fender dummy drive units  401 .  
         [0040]    The fender dummy  400  has the same shape as a fender part of the vehicle on which the carrier  200  having the head lamp  100  is assembled.  
         [0041]    In addition, the fender dummy drive unit  401  operates the fender dummy  400  in back and forth directions, and has a position sensor and a control unit. When the head lamp  100  is assembled to the carrier  200 , the fender dummy  400  is located in an exact position of the carrier  200  corresponding to a mounting position of the vehicle.  
         [0042]    The head lamp assembling device has a number of measuring sensors  30 . As shown in FIGS. 3 a  and  3   b , the measuring sensors  304  are mounted on the upper portion of the carrier assembling stand  300  to ascend and descend along guide rails  304 - 1  by an drive unit (not shown), and as shown in FIGS. 5 a  and  5   b , mounted on the side portions of the carrier assembling stand  300  for reciprocating motion. The measuring sensors  304  measure an assembling condition of the head lamp  100  to increase accuracy in assembly after the head lamp  100  is assembled to the carrier  200 .  
         [0043]    In FIGS. 3 a  and  3   b , four measuring sensors  304  are mounted, but in FIGS. 5 a  and  5   b , two measuring sensors  304  are mounted. The number of the measuring sensors  304  is not restricted to the drawings, and can be varied as occasion demands.  
         [0044]    Hereinafter, referring to FIGS. 6 a  and  6   b , an assembling method of the present invention will be described.  
         [0045]    First, after the carrier  100  is located on the table  303  of the carrier assembling stand  300 , the vertical and horizontal position adjusting pins  301  and  302  of the carrier assembling stand  300  are operated by the drive units  301 - 1  and  302 - 1  to be inserted into the horizontal and vertical position adjusting holes  201  and  202  formed in the front and upper surfaces of the carrier  200 , so that the carrier  200  is fixed.  
         [0046]    After that, the fender dummy drive unit  401  moves the fender dummy  400  forwardly to locate it at the same positions as the vehicle. At this time, the position sensor and the control unit mounted inside the drive unit are controlled so that the fender dummy  400  is located in the exact position corresponding to the mounting position of the vehicle.  
         [0047]    The head lamp  100  is located on the head lamp mounting part  203  of the carrier  400 , and closely contacts to the fender dummy  400 , so that the head lamp  100  is assembled to the carrier  100 .  
         [0048]    After that, the fender dummy  400  is moved backwardly by the fender dummy drive unit  401  to be removed, and then, the measuring sensors  304  measure errors by each measuring position.  
         [0049]    If the measuring result is bad, the head lamp  100  is separated from the carrier  200 , and then, the above process is repeated.  
         [0050]    If the measuring result is good, the vertical and horizontal position adjusting pins  301  and  302  are separated from the horizontal and vertical position adjusting holes  201  and  202 , and then, the carrier  200  is carried to the next assembling process.  
         [0051]    As described above, according to the head lamp assembling device and method of the present invention, when the head lamp is mounted on the carrier in a state in which the fender dummy of the same shape as the fender part of the vehicle is located in the exact position, it can prevent generation of undesired clearance between the fender and the head lamp when the carrier on which the head lamp is mounted is assembled to the vehicle.  
         [0052]    While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.