CN217413002U - Vehicle welding fixture - Google Patents

Abstract

The utility model relates to a vehicle welding jig for the centre gripping work piece, vehicle welding jig includes: a first carrier tray; the first clamping mechanism is fixed on the top side of the first bearing plate and used for clamping a workpiece along a first direction, and comprises two first chucks which are oppositely arranged along the first direction and can move along the first direction; each first chuck comprises a first clamping block and a movable block, the first clamping block is provided with a first clamping surface and installation surfaces positioned on two sides of the first clamping surface, and the movable block is arranged on the installation surfaces and can move along a second direction different from the first direction so as to change the distance between the movable block and the first clamping block in the second direction. According to the vehicle welding fixture, the movable block is arranged on the mounting surface of the first clamping block, and the first chuck can clamp workpieces with different diameters by adjusting the distance between the movable block and the first clamping block in the second direction, so that the applicability of the first clamping mechanism is improved.

Description

Vehicle welding fixture

Technical Field

The utility model relates to a vehicle welding technology field especially relates to a vehicle welding jig.

Background

A plurality of shaft parts exist in a vehicle, and clamping and positioning are needed when the shaft parts are welded. Among the current fixture, the size model of clamp splice itself is decided according to the size of part, and the clamp splice of a single model can only carry out the centre gripping to a single axle type part, and its suitability is relatively poor.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a vehicle welding jig for solving the problem of poor applicability of the clamping mechanism.

A vehicle welding jig for clamping a workpiece, the vehicle welding jig comprising:

a first carrier tray;

the first clamping mechanism is fixed on the top side of the first bearing plate and used for clamping a workpiece along a first direction, and comprises two first chucks which are oppositely arranged along the first direction and can move along the first direction;

each first chuck comprises a first clamping block and a movable block, the first clamping block is provided with a first clamping surface and installation surfaces positioned on two sides of the first clamping surface, and the movable block is arranged on the installation surfaces and can move along a second direction different from the first direction so as to change the distance between the movable block and the first clamping block in the second direction.

According to the vehicle welding fixture, the movable block is arranged on the mounting surface of the first clamping block, and the first chuck can clamp workpieces with different diameters by adjusting the distance between the movable block and the first clamping block in the second direction, so that the applicability of the first clamping mechanism is improved.

In one embodiment, the mounting surface of the first clamping block is provided with a limiting groove, one side of the movable block facing the mounting surface is convexly provided with a guide pillar, and the guide pillar is movably inserted into and limited by the limiting groove.

In one embodiment, the limiting groove is a stepped groove and has a stepped surface, the guide post includes a main body portion and a limiting portion connected to each other, the limiting portion is limited on the stepped surface, the first chuck further includes a first elastic member sleeved outside the main body portion, and the first elastic member is used for providing a restoring force for the movable block to return along the second direction.

In one embodiment, the movable block is provided with a second clamping surface, and when the movable block is in the initial position in the second direction, the second clamping surface and the first clamping surface are spliced and formed into semi-arc surfaces.

In one embodiment, the first chuck further comprises a protection pad, and the protection pad is arranged on each of the first clamping surface and the second clamping surface.

In one embodiment, the first clamping mechanism further includes a first mounting seat and a first driving member, the number of the first mounting seats corresponds to the number of the first clamping heads, the first mounting seat is fixed to the top side of the first carrier tray, and the first driving member is mounted on the first mounting seat and used for driving the first clamping blocks to move along the first direction.

In one embodiment, the first driving member is a screw, the first mounting seat is provided with a first screw hole through which the first driving member passes, and the first driving member is driven to rotate relative to the first mounting seat so as to drive the first clamping block to move along the first direction.

In one embodiment, the first clamping mechanism further comprises a measuring component corresponding to the number of the first clamping heads, and the measuring component is mounted on the first mounting seat and used for measuring the moving distance of the first clamping block along the first direction.

In one embodiment, the measuring assembly comprises a connector and a measuring column with a reticle, the first mounting base is provided with a through hole for the measuring column to pass through, and the connector is arranged at one end of the measuring column close to the first mounting base; and the moving distance of the first clamping block along the first direction is obtained by abutting the connector against the first mounting seat and observing the scribed line of the measuring column.

In one embodiment, the measuring assembly comprises a second elastic member and a stop block, the stop block is connected to one side of the first mounting seat facing the first clamping block through the second elastic member, and the measuring column penetrates through the second elastic member and the stop block;

when the first chuck is at an initial position in the first direction, the second elastic piece is in a compressed state and the stop block abuts against the connecting head.

In one embodiment, the vehicle welding jig further includes a second clamping mechanism fixed to the top side of the first carrier tray, and the second clamping mechanism includes two second clamping blocks, and the two second clamping blocks are disposed opposite to each other along the second direction and both can move along the second direction.

In one embodiment, the second clamping mechanism further includes second mounting seats and second driving members, the number of the second mounting seats corresponds to the number of the second clamping blocks, the second mounting seats are fixed to the top side of the first bearing plate, and the second driving members are mounted on the second mounting seats and used for driving the second clamping blocks to move along the second direction.

In one embodiment, the second driving member is a screw, the second mounting seat is provided with a second screw hole through which the second driving member passes, and the second driving member is driven to rotate relative to the second mounting seat so as to drive the second clamping block to move along the second direction.

In one embodiment, the second clamping block has a third clamping surface, and the third clamping surface is a plane.

In one embodiment, a positioning groove is formed in the middle of the top side of the first bearing plate to accommodate the workpiece.

In one embodiment, the vehicle welding jig further comprises a second bearing plate arranged at the bottom side of the first bearing plate at intervals, a protruding block is arranged on one side, facing the first bearing plate, of the second bearing plate, a sliding groove is arranged on one side, facing the second bearing plate, of the first bearing plate, and the protruding block is rotatably arranged in the sliding groove.

Drawings

FIG. 1 is a top view of a vehicle welding fixture in one embodiment;

FIG. 2 is an enlarged view of a portion A of the vehicle welding fixture of FIG. 1;

fig. 3 is a front view of the vehicle welding jig of fig. 1.

Reference numerals:

100. a first carrier tray; 101. positioning a groove; 102. a chute;

200. a first clamping mechanism; 210. a first chuck; 211. a first clamping block; 211a, a first clamping surface; 211b, mounting surface; 211c, a limiting groove; 211d, step surface; 212. a movable block; 212a, a second clamping surface; 213. a guide post; 213a, a main body; 213b, a stopper; 214. a first elastic member; 215. a protective pad; 220. a first mounting seat; 221. a first screw hole; 222. a through hole; 230. a first driving member; 240. a measurement assembly; 241. a connector; 242. a measuring column; 243. a second elastic member; 244. a stopper;

300. a second clamping mechanism; 310. a second clamping block; 311. a third clamping surface; 320. a second mounting seat; 321. a second screw hole; 330. a second driving member; 400. a second carrier tray; 401. and (4) a bump.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1, an exemplary welding fixture for a vehicle is used for clamping a workpiece. The vehicle welding jig comprises a first carrier plate 100 and a first clamping mechanism 200, wherein the first clamping mechanism 200 is fixed on the top side of the first carrier plate 100 and used for clamping a workpiece along a first direction, the first clamping mechanism 200 comprises two first clamping heads 210, and the two first clamping heads 210 are oppositely arranged along the first direction and can move along the first direction.

With reference to fig. 2, each of the first chucks 210 includes a first chuck block 211 and a movable block 212, the first chuck block 211 has a first clamping surface 211a and mounting surfaces 211b located at two sides of the first clamping surface 211a, and the movable block 212 is disposed on the mounting surface 211b and can move along a second direction different from the first direction, so as to change a distance between the movable block 212 and the first chuck block 211 in the second direction.

It should be noted that, when a workpiece is placed on the first carrier tray 100, the two first chucks 210 move in the first direction to approach each other, so as to clamp the workpiece on the first carrier tray 100 in the first direction, so as to perform a welding process on the workpiece.

Here, the first direction is an X direction shown in fig. 2, and the second direction is a Y direction shown in fig. 2.

In the vehicle welding jig, the movable block 212 is movably arranged on the mounting surface 211b of the first clamping block 211, and the first clamping head 210 can clamp workpieces with different diameters by adjusting the distance between the movable block 212 and the first clamping block 211 in the second direction, so that the applicability of the first clamping mechanism 200 is improved.

In this embodiment, the first clamping block 211 has two oppositely disposed mounting surfaces 211b, and each mounting surface 211b is provided with a movable block 212, so that the size adjustment of the first clamping head 210 in the second direction is more flexible, and the first clamping head can be better adapted to workpieces with different diameters. In other embodiments, the movable block 212 may be provided only on one mounting surface 211b of the first clamping block 211.

In this embodiment, referring to fig. 2, the mounting surface 211b of the first clamping block 211 is provided with a limiting groove 211c, one side of the movable block 212 facing the mounting surface 211b is convexly provided with a guide post 213, and the guide post 213 is movably inserted into and limited by the limiting groove 211 c. In this way, the guide post 213 is engaged with the stopper groove 211c to guide the movement of the movable block 212 in the second direction.

In this embodiment, the guide posts 213 and the movable block 212 may be a split structure, for example, the guide posts 213 are fixed to the movable block 212 by fasteners such as screws or bolts. Alternatively, the guide column 213 and the movable block 212 are integrated, so that the mechanical strength is high and the quick assembly and disassembly are convenient.

Specifically, referring to fig. 2, the limiting groove 211c is a stepped groove and has a stepped surface 211d, the guide pillar 213 includes a main body 213a and a limiting portion 213b connected to each other, the limiting portion 213b is limited on the stepped surface 211d, the first chuck 210 further includes a first elastic member 214 sleeved outside the main body 213a, and the first elastic member 214 is used for providing a restoring force for the movable block 212 to return along the second direction.

Here, the main body 213a is connected to the movable block 212 on the side facing the mounting surface 211b, and the first elastic member 214 is a spring. In the process of clamping the workpiece, the two first clamping blocks 211 are moved firstly to adjust the distance between the two first clamping blocks 211 and the workpiece in the first direction, then the movable block 212 is pulled out outwards, after the first clamping blocks 211 are attached to the workpiece, the movable block 212 is loosened, and the movable block 212 is retracted inwards through the elasticity of the first elastic piece 214 and is reset along the second direction so as to clamp the workpiece.

It should be noted that the dimension of the stopper portion 213b in the first direction is greater than the dimension of the main body portion 213a in the first direction, and the dimension of the stopper portion 213b in the first direction is greater than or equal to the dimension of the stepped surface 211d in the first direction, so that the stopper portion 213b can be stopped at the stepped surface 211 d; the main body 213a is smaller than the limiting groove 211c in the first direction, so that the main body 213a can be movably inserted into the limiting groove 211 c.

In the present embodiment, the movable block 212, the main body 213a and the limiting portion 213b are integrally formed, so that the mechanical strength is high and the quick assembly and disassembly are convenient. In other embodiments, the movable block 212 and the main body 213a may also be a split structure.

More specifically, referring to fig. 1, the movable block 212 has a second clamping surface 212a, and the second clamping surface 212a and the first clamping surface 211a are joined and formed in a semi-arc surface when the movable block 212 is at the initial position in the second direction. In this manner, the two first jaws 210 are facilitated to grip a shaft-like workpiece in a first direction.

Here, in other embodiments, the second clamping surface 212a and the first clamping surface 211a may be flat surfaces to fit workpieces with other shapes.

Referring to fig. 1, the first chuck 210 further includes a protection pad 215, and the protection pad 215 is disposed on each of the first clamping surface 211a and the second clamping surface 212 a. Therefore, the first clamping block 211 and the movable block 212 are effectively prevented from being damaged due to hard contact with the workpiece.

Specifically, the protection pad 215 is adhered to the first clamping surface 211a and the second clamping surface 212a by glue. The protection pad 215 is a silica gel pad or a rubber pad, and can be elastically deformed to play a role in protection when clamping a workpiece.

In this embodiment, referring to fig. 1, the first clamping mechanism 200 further includes a first mounting seat 220 and a first driving member 230, the number of the first clamping heads 210 corresponds to the number of the first clamping seats 220, the first mounting seat 220 is fixed on the top side of the first carrier tray 100, and the first driving member 230 is mounted on the first mounting seat 220 and used for driving the first clamping blocks 211 to move along the first direction. In this manner, rapid adjustment of the position of the first clamp block 211 in the first direction is facilitated.

Here, the first mounting base 220 and the first carrier plate 100 are of a split structure, for example, the first mounting base 220 is fixed to the top side of the first carrier plate 100 by a fastener such as a screw or a bolt. Alternatively, the first mounting base 220 and the first carrier tray 100 are integrally formed, so as to facilitate quick assembly and disassembly.

Specifically, referring to fig. 2 and fig. 1, the first driving member 230 is a screw, the first mounting base 220 is provided with a first screw hole 221 for the first driving member 230 to pass through, and the first driving member 230 is driven to rotate relative to the first mounting base 220 to drive the first clamping block 211 to move along the first direction. Thus, the first driving member 230 is screwed to the first screw hole 221, and the first clamping block 211 can move along the first direction by rotating the first driving member 230.

A hand wheel 231 is further disposed at an end of the first driving member 230 away from the first clamping block 211, and the first driving member 230 is driven to rotate by rotating the hand wheel 231.

In other embodiments, the first driving member 230 may also be an air cylinder, and an air cylinder rod is directly connected to the first clamping block 211, and the air cylinder rod moves back and forth in the first direction to drive the first clamping block 211 to move along the first direction.

Further, referring to fig. 1, the first clamping mechanism 200 further includes a measuring assembly 240 corresponding to the number of the first clamping heads 210, and the measuring assembly 240 is mounted to the first mounting base 220 and is used for measuring a moving distance of the first clamping block 211 along the first direction.

Specifically, referring to fig. 2 in combination, the measuring assembly 240 includes a connector 241 and a measuring column 242 having a reticle, the first mounting base 220 is provided with a through hole 222 for the measuring column 242 to pass through, the connector 241 is disposed at one end of the measuring column 242 close to the first mounting base 220; the moving distance of the first clamping block 211 along the first direction is obtained by pressing the connecting head 241 against the first mounting base 220 and observing the scribed line of the measuring column 242.

It can be understood that, when the first clamping block 211 is moved, the scribed lines on the first clamping block 211 need to be observed to ensure that the numerical values of the scribed lines exposed by the measuring posts 242 of the two first mounting seats 220 are consistent, and the circle center of the workpiece is coincident with the circle center of the first carrier tray 100.

More specifically, the measuring assembly 240 includes a second elastic member 243 and a stopper 244, the stopper 244 is connected to one side of the first mounting base 220 facing the first clamping block 211 through the second elastic member 243, and the measuring column 242 penetrates through the second elastic member 243 and the stopper 244. When the first collet 210 is at the initial position in the first direction, the second elastic member 243 is in a compressed state and the stopper 244 abuts against the connecting head 241.

Here, the second elastic member 243 is a spring. For example, when the first chuck 210 is at the initial position in the first direction, the second elastic member 243 is in a compressed state and the stopper 244 abuts against the connecting head 241, and after the first chuck 210 moves to the right to the first position, the second elastic member 243 extends due to the length to be restored and drives the stopper 244 to push the connecting head 241 to the right, so that the connecting head 241 abuts against the first mounting seat 220 and the scribed line of the measuring column 242 is observed, and the moving distance of the first chuck 211 along the first direction is obtained.

In this embodiment, referring to fig. 1, the vehicle welding jig further includes a second clamping mechanism 300 fixed to the top side of the first carrier tray 100, the second clamping mechanism 300 includes two second clamping blocks 310, and the two second clamping blocks 310 are disposed opposite to each other along the second direction and are both capable of moving along the second direction. In this manner, the second gripper mechanism 300 can grip the workpiece in the second direction.

Specifically, the second clamping mechanism 300 further includes second mounting seats 320 and second driving members 330, the number of the second mounting seats 320 corresponds to the number of the second clamping blocks 310, the second mounting seats 320 are fixed on the top side of the first carrier tray 100, and the second driving members 330 are mounted on the second mounting seats 320 and used for driving the second clamping blocks 310 to move along the second direction. In this manner, rapid adjustment of the position of the second clamp block 310 in the second direction is facilitated.

Here, the second mounting base 320 and the first carrier plate 100 are of a split structure, for example, the second mounting base 320 is fixed to the top side of the first carrier plate 100 by a fastener such as a screw or a bolt. Alternatively, the second mounting base 320 and the first carrier tray 100 are integrally formed, so as to facilitate quick assembly and disassembly.

Specifically, referring to fig. 3 and fig. 1, the second driving member 330 is a screw, the second mounting base 320 is provided with a second screw hole 321 for the second driving member 330 to pass through, and the second driving member 330 is driven to rotate relative to the second mounting base 320 to drive the second clamping block 310 to move along the second direction.

In other embodiments, the second driving member 330 may also be an air cylinder, and an air cylinder rod is directly connected to the second clamping block 310, and the air cylinder rod reciprocates in the second direction to drive the second clamping block 310 to move in the second direction.

In this embodiment, the second clamping block 310 has a third clamping surface 311, and the third clamping surface 311 is a plane.

Further, referring to fig. 3, a positioning groove 101 is formed in the middle of the top side of the first carrier tray 100 for receiving a workpiece. Thus, the workpiece can be positioned on the first carrier tray 100, and the workpiece is prevented from being positioned.

Further, in the embodiment shown in fig. 3, the vehicle welding jig further includes a second carrier plate 400 spaced apart from the bottom side of the first carrier plate 100, a protrusion 401 is disposed on a side of the second carrier plate 400 facing the first carrier plate 100, a sliding slot 102 is disposed on a side of the first carrier plate 100 facing the second carrier plate 400, and the protrusion 401 is rotatably disposed in the sliding slot 102. In this way, the first carrier tray 100 can rotate relative to the second carrier tray 400, so that after a workpiece placed on the first carrier tray 100 is clamped, the workpiece can be rotated to perform welding in different directions.

In other embodiments, the protrusion 401 may be disposed on a side of the first carrier tray 100 facing the second carrier tray 400, and the sliding slot 102 may be disposed on a side of the second carrier tray 400 facing the first carrier tray 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (16)

1. A vehicle welding jig for clamping a workpiece, the vehicle welding jig comprising:

a first carrier tray;

the first clamping mechanism is fixed on the top side of the first bearing plate and used for clamping a workpiece along a first direction, and comprises two first chucks which are oppositely arranged along the first direction and can move along the first direction;

each first chuck comprises a first clamping block and a movable block, the first clamping block is provided with a first clamping surface and installation surfaces positioned on two sides of the first clamping surface, and the movable block is arranged on the installation surfaces and can move along a second direction different from the first direction so as to change the distance between the movable block and the first clamping block in the second direction.

2. The vehicle welding jig of claim 1, wherein the mounting surface of the first clamping block is provided with a limiting groove, a guide post is protruded from one side of the movable block facing the mounting surface, and the guide post is movably inserted into and limited by the limiting groove.

3. The vehicle welding jig of claim 2, wherein the limiting groove is a stepped groove and has a stepped surface, the guide post includes a main body portion and a limiting portion connected to each other, the limiting portion is limited on the stepped surface, the first collet further includes a first elastic member sleeved outside the main body portion, and the first elastic member is configured to provide a restoring force for the movable block to return along the second direction.

4. The vehicle welding jig of claim 1, wherein the movable block has a second clamping surface, and the second clamping surface and the first clamping surface are joined and formed into a semi-arc surface when the movable block is in an initial position in the second direction.

5. The vehicle welding jig of claim 4, wherein the first collet further comprises a protective pad, the protective pad being disposed on each of the first clamping surface and the second clamping surface.

6. The vehicle welding jig of claim 1, wherein the first clamping mechanism further comprises a first mounting seat and a first driving member, the number of the first mounting seat corresponds to the number of the first clamping heads, the first mounting seat is fixed on the top side of the first carrying tray, and the first driving member is mounted on the first mounting seat and used for driving the first clamping block to move along the first direction.

7. The vehicle welding jig of claim 6, wherein the first driving member is a threaded rod, the first mounting seat is provided with a first threaded hole for the first driving member to pass through, and the first driving member is driven to rotate relative to the first mounting seat to drive the first clamping block to move along the first direction.

8. The vehicle welding jig of claim 6, wherein the first clamping mechanism further comprises a number of measurement assemblies corresponding to the number of the first collets, the measurement assemblies being mounted to the first mounting base and configured to measure a distance of movement of the first clamping block in the first direction.

9. The vehicle welding jig of claim 8, wherein the measuring assembly comprises a connector and a measuring post having a reticle, the first mounting base is provided with a through hole for the measuring post to pass through, and the connector is arranged at one end of the measuring post close to the first mounting base; and the moving distance of the first clamping block along the first direction is obtained by abutting the connector against the first mounting seat and observing the scribed line of the measuring column.

10. The vehicle welding jig of claim 9, wherein the measuring assembly comprises a second elastic member and a stopper, the stopper is connected to a side of the first mounting seat facing the first clamping block through the second elastic member, and the measuring column penetrates through the second elastic member and the stopper;

when the first chuck is at an initial position in the first direction, the second elastic piece is in a compressed state and the stop block abuts against the connecting head.

11. The vehicle welding jig of claim 1, further comprising a second clamping mechanism fixed to the top side of the first carrier tray, the second clamping mechanism comprising two second clamping blocks disposed opposite each other along the second direction and each movable along the second direction.

12. The vehicle welding jig of claim 11, wherein the second clamping mechanism further comprises a second mounting seat corresponding to the number of the second clamping blocks and a second driving member, the second mounting seat is fixed to the top side of the first carrying tray, and the second driving member is mounted on the second mounting seat and used for driving the second clamping blocks to move along the second direction.

13. The vehicle welding jig of claim 12, wherein the second driving member is a threaded rod, the second mounting seat has a second threaded hole for the second driving member to pass through, and the second driving member is driven to rotate relative to the second mounting seat to drive the second clamping block to move along the second direction.

14. The vehicle weld fixture of claim 11, wherein the second clamp block has a third clamp face that is planar.

15. The vehicle welding jig of claim 1, wherein a locating slot is provided in a central portion of the top side of the first carrier tray to receive the work piece.

16. The vehicle welding jig of claim 1, further comprising a second carrying tray spaced apart from the bottom side of the first carrying tray, wherein a protrusion is disposed on a side of the second carrying tray facing the first carrying tray, a sliding slot is disposed on a side of the first carrying tray facing the second carrying tray, and the protrusion is rotatably disposed in the sliding slot.

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