Auxiliary positioning tool for lamp and positioning and mounting method of lamp

Abstract

The invention provides a lamp auxiliary positioning tool and a lamp positioning and mounting method, and relates to the technical field of automobile lamp mounting, the lamp auxiliary positioning tool comprises a fixing frame, a positioning block assembly and a positioning pin assembly, and the fixing frame is used for being detachably mounted on an automobile body framework; the positioning block assembly is provided with an abutting end used for abutting against the X-direction end face of the lamp. The abutting end can move in the X direction. The positioning pin assemblies are provided with positioning pins used for penetrating through positioning holes formed in the lamp in the X direction. The positioning pin in at least one positioning pin assembly can move along the Y direction and the Z direction; the lamp can be adjusted in the X direction, the Y direction and the Z direction, so that the positioning and mounting of the lamp meet the clearance surface difference tolerance requirement, and the mounting consistency can be ensured when the lamp and a vehicle body framework are produced in batches; and the size precision requirement of the lamp and the position precision requirement of the mounting hole in the vehicle body framework are reduced, and the production qualification rate of the lamp and the vehicle body framework can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamp installation, and in particular to a lamp auxiliary positioning tool and a lamp positioning and installation method. Background Art

[0002] The automotive industry is constantly developing and innovating. In addition to innovations in new energy technologies, the styling is also constantly innovating. In the past, car headlights were all integral, but now some models use split headlights, that is, another headlight is arranged below the traditional integral headlight.

[0003] After the headlight is divided into two parts, matching the gap and surface difference of the appearance is a huge challenge. In addition, the split lamp added at the bottom cannot be directly installed on the front bumper because it has lenses and heat dissipation module lamp components inside. It needs to be assembled on the body frame. The accuracy of the mounting point on the body frame cannot meet the tolerance level requirements of the gap and surface difference of the lamp, so the lamp size, connection hole setting, and the position accuracy of the mounting hole on the body frame need to be higher, resulting in a sharp increase in the difficulty coefficient of mass production of lamps and body frames.

[0004] Therefore, some measures are needed to ensure the gap difference between the lamp and the bumper. Summary of the invention

[0005] The purpose of the present invention is to provide a lamp auxiliary positioning tool and a lamp positioning and installation method to solve the problems existing in the prior art. The lamp can be adjusted in the X, Y and Z directions so that the positioning and installation of the lamp meets the gap surface difference tolerance requirements. When the lamps and vehicle body frames are mass-produced, the consistency of installation can also be guaranteed; and the dimensional accuracy requirements of the lamps and the position accuracy requirements of the mounting holes on the vehicle body frames are reduced, which is conducive to improving the production qualification rate of the lamps and vehicle body frames.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A lamp auxiliary positioning tool comprises a fixing frame, a positioning block assembly and a positioning pin assembly, wherein the fixing frame is used for being detachably mounted on a vehicle body frame; the positioning block assembly is fixed on the fixing frame, and the positioning block assembly has an abutting end for abutting against an X-direction end face on the lamp; the abutting end is movable along the X-direction; the positioning pin assembly is fixed on the fixing frame, and a plurality of positioning pin assemblies are provided, and the positioning pin assembly has positioning pins for penetrating positioning holes opened on the lamp along the X-direction; at least one positioning pin in the positioning pin assembly is movable along the Y-direction and the Z-direction.

[0008] As one embodiment, the positioning block assembly includes a first base, an X-direction reference block and an X-direction adjustment plate, the first base is fixedly connected to the fixed frame, the X-direction reference block abuts against the X-direction end face on the lamp; the X-direction reference block and the base are detachably connected, and 0 to multiple X-direction adjustment plates stacked along the X-direction are arranged between the X-direction reference block and the first base.

[0009] As an implementation manner, the X-direction reference block and the first base are fixed by a first locking bolt arranged along the X-direction.

[0010] As an implementation manner, the X-direction reference block and the first base are both provided with a first pin hole along the X-direction, and an X-direction limit pin is passed through the first pin hole.

[0011] As one embodiment, the positioning pin assembly includes a second base, a Y-axis adjustment block, a Z-axis adjustment block and the positioning pin; the second base is fixed on the fixed frame, the Z-axis adjustment block is detachably connected to the second base, and 0 to multiple Z-axis adjustment sheets stacked along the Z direction are arranged between the Z-axis adjustment block and the second base; the Y-axis adjustment block is detachably connected to the Z-axis adjustment block, and 0 to multiple Y-axis adjustment sheets stacked along the Y direction are arranged between the Y-axis adjustment block and the Z-axis adjustment block; the positioning pin is arranged on the Y-axis adjustment block.

[0012] As an implementation manner, the Z-direction adjustment block and the second base are fixed by a second locking bolt arranged along the Z direction, and the Y-direction adjustment block and the Z-direction adjustment block are fixed by a third locking bolt arranged along the Y direction.

[0013] As one embodiment, the Z-direction adjustment block and the second base are both provided with a second pin hole along the Z direction, and a Z-direction limit pin is passed through the second pin hole; the Y-direction adjustment block and the Z-direction adjustment block are both provided with a third pin hole along the Y direction, and a Y-direction limit pin is passed through the third pin hole.

[0014] As one implementation mode, the positioning block assembly is composed of an upper headlight positioning block assembly and a lower headlight positioning block assembly, and the positioning pin assembly is composed of an upper headlight positioning pin assembly and a lower headlight positioning pin assembly; the upper headlight positioning block assembly and the upper headlight positioning pin assembly are used to fix the upper headlight in a split lamp; the lower headlight positioning block assembly and the lower headlight positioning pin assembly are used to fix the lower headlight in a split lamp.

[0015] As an implementation manner, a top pin is provided at the top of the fixing frame, and a front pin is provided at the front end of the fixing frame. Both the top pin and the front pin are plugged and fixed to the vehicle body frame.

[0016] The present invention also provides a method for positioning and installing a lamp. Based on the above-mentioned lamp auxiliary positioning tool, the method for positioning and installing the lamp includes the following steps: installing a fixing frame on a vehicle body frame; abutting the X-direction end face of the lamp with the abutting end of the positioning block assembly, and plugging the positioning hole on the lamp with the positioning pin in the positioning pin assembly; adjusting the abutting end position of the positioning block assembly along the X direction, and adjusting the positioning pin position along the Y direction and the Z direction, so that the positioning of the lamp meets the gap surface difference tolerance requirements; threading an adjusting sleeve into the connecting hole on the lamp, so that the end of the adjusting sleeve abuts against the vehicle body frame, and then passing the end of the connecting bolt through the through hole on the adjusting sleeve, and connecting the welding nut at the mounting hole on the vehicle body frame to complete the fixing of the lamp.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] The positioning block assembly and the positioning pin assembly in the present invention can adjust the lamp in the X, Y and Z directions, so that the positioning installation of the lamp meets the gap surface difference tolerance requirements, and the consistency of installation can be ensured when the lamp and the body frame are mass-produced. At the same time, the installation method provided in the present invention can largely eliminate the manufacturing tolerance of the lamp and the position tolerance of the mounting hole on the body frame, thereby reducing the dimensional accuracy requirements of the lamp and the position accuracy requirements of the mounting hole on the body frame, which is conducive to improving the production qualification rate of the lamp and the body frame, and achieving the purpose of reducing costs and improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the structure of a lamp auxiliary positioning tool in one embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the assembly structure of the lamp auxiliary positioning tool and the vehicle body frame in one embodiment of the present invention;

[0022] Figure 3 for Figure 1 Rear view of

[0023] Figure 4 This is a schematic structural diagram of a positioning block assembly in one embodiment of the present invention;

[0024] Figure 5A schematic structural diagram of a positioning pin assembly in one embodiment of the present invention;

[0025] Figure 6 The figure is a schematic diagram of the connection structure between the lamp and the vehicle body frame in one embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 100, fixing bracket; 101, lower left pin; 102, lower right pin; 103, upper left pin; 104, upper right pin; 200, upper headlight positioning block assembly; 201, X-direction reference block; 202, first base; 203, X-direction limit pin; 204, X-direction adjustment piece; 205, first locking bolt; 300, upper headlight positioning pin assembly; 301, second base; 302, Y-direction adjustment block; 303, Z-direction adjustment Block; 304, Z-axis adjustment piece; 305, Y-axis adjustment piece; 306, second locking bolt; 307, third locking bolt; 308, Y-axis limit pin; 309, Z-axis limit pin; 310, positioning pin; 400, lower headlight positioning block assembly; 500, lower headlight positioning pin assembly; 601, adjustment sleeve; 602, connecting bolt; 603, welding nut; 604, washer; 700, lamp; 800, body frame. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a lamp auxiliary positioning tool and a lamp positioning and installation method to solve the problems existing in the prior art. The lamp can be adjusted in the X, Y and Z directions so that the positioning and installation of the lamp meets the gap surface difference tolerance requirements. When the lamps and vehicle body frames are mass-produced, the consistency of installation can also be guaranteed; and the dimensional accuracy requirements of the lamps and the position accuracy requirements of the mounting holes on the vehicle body frames are reduced, which is conducive to improving the production qualification rate of the lamps and vehicle body frames.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] like Figure 1 to Figure 6As shown, the present embodiment provides a lamp auxiliary positioning tool, including a fixing frame 100, a positioning block assembly and a positioning pin assembly. The fixing frame 100 can be welded by metal pipes or rods, and its shape is adapted to the front end shape of the vehicle body frame 800, and can be detachably installed on the vehicle body frame 800. The fixing frame 100 has a positioning area for positioning the lamp 700. After the fixing frame 100 is installed on the vehicle body frame 800, the positioning area corresponds to the installation area of ​​the lamp 700 on the vehicle body frame 800. The fixing frame 100 is provided with a positioning block assembly and a positioning pin assembly at the positioning area, which are used to position the lamp 700, and the positioning position of the lamp 700 in the positioning area can be adjusted to meet the gap surface difference tolerance requirements with the bumper. After the positioning of the lamp 700 is completed, the lamp 700 can be fixed on the vehicle body frame 800. Specifically, the positioning block assembly has an abutting end for abutting against the X-direction end surface of the lamp 700, and the abutting end has an X-direction adjustment function, which is specifically manifested as being able to move along the X-direction. In order to ensure the positioning accuracy in the X-direction, a plurality of positioning block assemblies are provided, which abut against different positions of the lamp 700 respectively. When the lamp 700 is positioned in the X-direction, the abutting end of each positioning block can be adjusted respectively. A plurality of positioning pin assemblies are provided, and the positioning pin assembly has a positioning pin 310 for penetrating the positioning hole opened along the X-direction on the lamp 700; at least one positioning pin 310 in the positioning pin assembly has a Y-direction adjustment function and a Z-direction adjustment function, which is specifically manifested as being able to move along the Y-direction and the Z-direction; the positioning pins 310 in other positioning pin assemblies can be fixedly arranged along the X-direction. In this embodiment, the X-direction refers to the front and rear direction of the car in the horizontal direction, the Y-direction refers to the left and right direction of the car in the horizontal direction, and the Z-direction refers to the vertical direction. The X-direction, the Y-direction, and the Z-direction are perpendicular to each other.

[0033] When in use, fix the fixing frame 100 on the vehicle frame 800, then abut the front end of the lamp 700 against the abutting end of the positioning block assembly along the X direction, and insert the positioning pin 310 into the positioning hole on the lamp 700 to prevent the lamp 700 from moving along the Y direction and the Z direction or rotating around the X direction, the Y direction, and the Z direction; adjust the position of the abutting end along the X direction, and adjust the positioning pin 310 along the Y direction and the Z direction, so that the lamp 700 meets the gap face difference tolerance requirements. Finally, fix the lamp 700 on the vehicle frame 800.

[0034] The vehicle body frame 800 is usually provided with a mounting hole for mounting the lamp 700, and a nut is welded at the mounting hole. The mounting hole is usually opened along the X direction. However, after the position of the lamp 700 is adjusted, due to the accumulated tolerance, the lamp 700 may not be completely fitted with the vehicle body frame 800. The mounting hole of the lamp 700 is directly connected to the connecting hole on the lamp 700 using the connecting bolt 602. Under the action of the locking force of the connecting bolt 602, the position of the lamp 700 will be moved, so that the gap surface difference no longer meets the tolerance requirement. Therefore, the present embodiment also discloses a method for positioning and installing the lamp 700, specifically, an adjustment sleeve 601 is connected in the connection hole by threading, so that the end of the adjustment sleeve 601 abuts against the vehicle body frame 800, and then the connection bolt 602 is passed through the through hole on the adjustment sleeve 601 to connect the welding nut 603, and the nut of the connection bolt 602 abuts against the end of the adjustment sleeve 601 through the washer 604, so as to complete the fixing of the lamp 700 on the vehicle body frame 800, such as Figure 6 The fixing frame 100 is disassembled and installed on another vehicle body frame 800 to position and install the lamp 700.

[0035] It should be noted that after the lamp 700 is completed on the auxiliary positioning tooling, due to the accumulation of tolerances, the connecting hole may not be directly opposite the mounting hole. In order to enable the connecting bolt 602 to pass through the connecting hole and the mounting hole, the diameter of the connecting hole in this embodiment is larger than the mounting hole, allowing the connecting bolt 602 to move in the connecting hole and align with the mounting hole, thereby ensuring that the lamp 700 is smoothly connected to the vehicle body frame 800.

[0036] Therefore, the positioning block assembly and the positioning pin assembly in this embodiment can adjust the lamp 700 in the X direction, Y direction, and Z direction, so that the positioning installation of the lamp 700 meets the gap surface difference tolerance requirements, and the consistency of the installation can also be guaranteed when the lamp 700 and the body frame 800 are mass-produced. At the same time, using the installation method given in this embodiment (that is, the positioning installation method of the lamp 700 recorded in Example 2), the manufacturing tolerance of the lamp 700 and the position tolerance of the mounting hole on the body frame 800 can be eliminated to a large extent, thereby reducing the dimensional accuracy requirements of the lamp 700 and the position accuracy requirements of the mounting holes on the body frame 800, which is conducive to improving the production qualification rate of the lamp 700 and the body frame 800, and achieving the purpose of reducing costs and improving the yield rate.

[0037] like Figure 4As shown, the positioning block assembly in this embodiment includes a first base 202, an X-direction reference block 201, and an X-direction adjustment sheet 204. The first base 202 is fixedly connected to the fixing frame 100, for example, by welding, and the X-direction reference block 201 abuts against the X-direction end face on the lamp 700. Here, the X-direction end face on the lamp 700 may have a certain inclination angle with the vertical surface, and accordingly, the end of the X-direction reference block 201 also has the same inclination angle, ensuring that the X-direction reference block 201 and the X-direction end face on the lamp 700 can be completely fitted. The X-direction reference block 201 is detachably connected to the base, and zero to multiple X-direction adjustment sheets 204 stacked along the X-direction are provided between the X-direction reference block 201 and the first base 202. The X-direction adjustment piece 204 may be a metal sheet. By adjusting the number of the X-direction adjustment pieces 204 between the X-direction reference block 201 and the first base 202, the X-direction spacing between the X-direction reference block 201 and the first base 202 may be changed, thereby adjusting the X-direction position of the lamp 700. In positioning block assemblies at different positions, the number of X-direction adjustment pieces 204 may be different.

[0038] As an implementation mode, in this embodiment, the X-direction reference block 201 and the first base 202 are fixed by a first locking bolt 205 arranged along the X-direction. In addition, the X-direction reference block 201 and the first base 202 are both provided with a first pin hole along the X-direction, and an X-direction limit pin 203 is inserted into the first pin hole to assist in positioning the X-direction reference block 201 and prevent the X-direction reference block 201 from rotating.

[0039] like Figure 5 As shown, in this embodiment, the positioning pin assembly includes a second base 301, a Y-axis adjustment block 302, a Z-axis adjustment block 303 and a positioning pin 310; the second base 301 is fixed on the fixing frame 100, for example, by welding, the Z-axis adjustment block 303 is detachably connected to the second base 301, and 0 to multiple Z-axis adjustment sheets 304 stacked along the Z direction are arranged between the Z-axis adjustment block 303 and the second base 301; the Y-axis adjustment block 302 is detachably connected to the Z-axis adjustment block 303, and 0 to multiple Y-axis adjustment sheets 305 stacked along the Y direction are arranged between the Y-axis adjustment block 302 and the Z-axis adjustment block 303; a positioning pin 310 is arranged on the Y-axis adjustment block 302. The Z-axis adjustment sheet 304 and the Y-axis adjustment sheet 305 can both be metal sheets. By adjusting the number of Z-axis adjustment sheets 304 between the second base 301 and the Z-axis adjustment block 303, the height of the Z-axis adjustment block 303 can be changed; by adjusting the number of Y-axis adjustment sheets 305 between the Z-axis adjustment block 303 and the Y-axis adjustment block 302, the Y-direction spacing between the Y-direction adjustment block 302 and the second base 301 can be changed, thereby realizing the position adjustment of the positioning pin 310 on the Y-direction adjustment block 302 in the Y and Z directions.

[0040] As an embodiment, the Z-direction adjustment block 303 is fixed to the second base 301 by a second locking bolt 306 arranged along the Z direction, and the Y-direction adjustment block 302 is fixed to the Z-direction adjustment block 303 by a third locking bolt 307 arranged along the Y direction. A second pin hole is arranged along the Z direction on both the Z-direction adjustment block 303 and the second base 301, and a Z-direction limit pin 309 is inserted into the second pin hole. A third pin hole is arranged along the Y direction on both the Y-direction adjustment block 302 and the Z-direction adjustment block 303, and a Y-direction limit pin 308 is inserted into the third pin hole.

[0041] The split headlight is usually divided into a separate upper headlight and a lower headlight, and further, the multiple positioning block assemblies in this embodiment can be divided into an upper headlight positioning block assembly 200 and a lower headlight positioning block assembly 400, and the positioning pin assembly can be divided into an upper headlight positioning pin assembly 300 and a lower headlight positioning pin assembly 500, and at least two of the upper headlight positioning pin assembly 300 and the lower headlight positioning pin assembly 500 are provided; the upper headlight positioning block assembly 200 and the upper headlight positioning pin assembly 300 are used to fix the upper headlight in the split lamp 700; the lower headlight positioning block assembly 400 and the lower headlight positioning pin assembly 500 are used to fix the lower headlight in the split lamp 700.

[0042] The fixing frame 100 can be fixed to the vehicle body frame 800 by snap-fitting or by bolts. In this embodiment, the top of the fixing frame 100 is provided with top pins, namely, an upper left pin 103 and an upper right pin 104, and the front end of the fixing frame 100 is provided with front pins, namely, a lower left pin 101 and a lower right pin 102. The upper left pin 103, the upper right pin 104, the lower left pin 101 and the lower right pin 102 are all plugged and fixed to the vehicle body frame 800, which makes it easier to disassemble and assemble the fixing frame 100 and the vehicle body frame 800.

[0043] Embodiment 2:

[0044] The present embodiment provides a positioning and installation method for a lamp 700. Based on the lamp auxiliary positioning tool in Embodiment 1, the positioning and installation method for the lamp 700 includes the following steps: installing a fixing frame 100 on a vehicle body frame 800; abutting the X-direction end face of the lamp 700 with the abutting end of the positioning block assembly, and plugging the positioning hole on the lamp 700 with the positioning pin 310 in the positioning pin assembly; adjusting the abutting end position of the positioning block assembly along the X direction, and adjusting the position of the positioning pin 310 along the Y direction and the Z direction, so that the positioning of the lamp 700 meets the gap surface difference tolerance requirement; threading the adjusting sleeve 601 into the connecting hole on the lamp 700, so that the end of the adjusting sleeve 601 abuts against the vehicle body frame 800, and then passing the end of the connecting bolt 602 through the through hole on the adjusting sleeve 601, and connecting the welding nut 603 at the mounting hole on the vehicle body frame 800 to complete the fixing of the lamp 700.

[0045] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A lamp auxiliary positioning tool, characterized in that: include: A fixing frame, the fixing frame is used to be detachably mounted on the vehicle body frame; A positioning block assembly, wherein the positioning block assembly is fixed on the fixing frame, and the positioning block assembly has an abutting end for abutting against an X-direction end surface of the lamp; the abutting end is movable along the X-direction; And a positioning pin assembly, wherein the positioning pin assembly is fixed on the fixing frame, the positioning pin assembly is provided with a plurality of positioning pins, and the positioning pin assembly has positioning pins for penetrating positioning holes opened along the X direction on the lamp; at least one positioning pin in the positioning pin assembly is movable along the Y direction and the Z direction.

2. The lamp auxiliary positioning tool according to claim 1, characterized in that: The positioning block assembly includes a first base, an X-direction reference block and an X-direction adjustment sheet. The first base is fixedly connected to the fixing frame, and the X-direction reference block abuts against the X-direction end face of the lamp. The X-direction reference block and the base are detachably connected, and 0 to multiple X-direction adjustment sheets stacked along the X-direction are arranged between the X-direction reference block and the first base.

3. The lamp auxiliary positioning tool according to claim 2, characterized in that: The X-direction reference block and the first base are fixed to each other via a first locking bolt arranged along the X-direction.

4. The lamp auxiliary positioning tool according to claim 2, characterized in that: The X-direction reference block and the first base are both provided with a first pin hole along the X-direction, and an X-direction limiting pin is passed through the first pin hole.

5. The lamp auxiliary positioning tool according to claim 1 or 2, characterized in that: The positioning pin assembly includes a second base, a Y-axis adjustment block, a Z-axis adjustment block and the positioning pin; the second base is fixed on the fixed frame, the Z-axis adjustment block is detachably connected to the second base, and 0 to multiple Z-axis adjustment sheets stacked along the Z direction are arranged between the Z-axis adjustment block and the second base; the Y-axis adjustment block is detachably connected to the Z-axis adjustment block, and 0 to multiple Y-axis adjustment sheets stacked along the Y direction are arranged between the Y-axis adjustment block and the Z-axis adjustment block; the positioning pin is arranged on the Y-axis adjustment block.

6. The lamp auxiliary positioning tool according to claim 5, characterized in that: The Z-direction adjustment block is fixed to the second base via a second locking bolt arranged along the Z direction; the Y-direction adjustment block is fixed to the Z-direction adjustment block via a third locking bolt arranged along the Y direction.

7. The lamp auxiliary positioning tool according to claim 5, characterized in that: The Z-direction adjustment block and the second base are both provided with a second pin hole along the Z direction, and a Z-direction limit pin is passed through the second pin hole; the Y-direction adjustment block and the Z-direction adjustment block are both provided with a third pin hole along the Y direction, and a Y-direction limit pin is passed through the third pin hole.

8. The lamp auxiliary positioning tool according to claim 1, characterized in that: The positioning block assembly is composed of an upper headlight positioning block assembly and a lower headlight positioning block assembly, and the positioning pin assembly is composed of an upper headlight positioning pin assembly and a lower headlight positioning pin assembly; the upper headlight positioning block assembly and the upper headlight positioning pin assembly are used to fix the upper headlight in the split lamp; the lower headlight positioning block assembly and the lower headlight positioning pin assembly are used to fix the lower headlight in the split lamp.

9. The lamp auxiliary positioning tool according to claim 1, characterized in that: A top pin is arranged at the top of the fixing frame, and a front pin is arranged at the front end of the fixing frame. Both the top pin and the front pin are plugged and fixed to the vehicle body frame.

10. A method for positioning and installing a lamp, characterized in that: Based on the auxiliary positioning tool for lamps according to any one of claims 1 to 9, the positioning and installation method of the lamps comprises the following steps: Install the fixing bracket on the vehicle body frame; Abutting the X-direction end face of the lamp with the abutting end of the positioning block assembly, and plugging the positioning hole on the lamp with the positioning pin in the positioning pin assembly; Adjust the abutment end position of the positioning block assembly along the X direction, and adjust the positioning pin position along the Y direction and the Z direction, so that the positioning of the lamp meets the gap face difference tolerance requirement; Thread the adjustment sleeve into the connecting hole on the lamp so that the end of the adjustment sleeve abuts against the vehicle body frame, then pass the end of the connecting bolt through the through hole on the adjustment sleeve and connect the welding nut at the mounting hole on the vehicle body frame to complete the fixation of the lamp.

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