A welding fixture for automobile metal parts

Abstract

The utility model provides a welding fixture for automobile metal parts, including a mounting plate, a driving box is arranged at the upper end of the mounting plate, a rotating column is arranged inside the driving box for rotation, a worm wheel is arranged on the fixed sleeve on the outer arc surface of the rotating column, a worm is arranged inside the driving box for rotation for meshing with the worm wheel, a rotating frame is arranged at the upper end of the rotating column, rectangular plates are arranged on the left and right sides of the rotating frame respectively through a rotating shaft, an electric driving unit 1 for driving the worm to rotate is arranged inside the driving box, an electric driving unit 2 is arranged on the right side of the rotating frame, and a clamping mechanism is arranged on the inner side surface of the mounting plate. Through the welding fixture for automobile metal parts described in the utility model, automobile metal parts can be clamped in all directions, welding deformation can be reduced, the movement or falling off of metal parts can be avoided, the safety during welding can be ensured, and the welding quality can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile metal parts production and processing, in particular to a welding fixture for automobile metal parts. Background Art

[0002] Automotive metal parts refer to various metal products used in automobile manufacturing, including car bodies, doors, hoods, chassis, etc. These metal parts usually need to be welded to assemble into a complete automobile structure. The welding fixtures of automotive metal parts are tools used to fix and clamp metal parts during the welding process. They are usually composed of fixture seats, fixture arms, fixture clamping devices, etc., which can be adjusted and fixed according to the shape and size of the metal parts. The existing welding fixtures for automotive metal parts cannot clamp the upper, lower, front and rear parts of automotive metal parts, which may cause the position of the metal parts to be unstable during welding, affecting the welding quality.

[0003] For example, the utility model with announcement number CN210587806U discloses a tooling fixture for welding metal parts, in which a fastening plate is arranged on a piston rod through a mounting ring. In this patent scheme, the automobile parts are clamped by the fastening plates approaching each other for subsequent welding. It is unable to clamp the upper and lower front and rear parts of the automobile metal parts. The metal parts may be deformed during the welding process, affecting the welding quality, and may also cause the metal parts to move or fall off during the welding process, posing a safety hazard. Utility Model Content

[0004] In view of this, the utility model aims to solve the deficiencies of the prior art and provides a welding fixture for automobile metal parts, which can clamp automobile metal parts in all directions, reduce welding deformation, avoid movement or falling off of metal parts, ensure safety during welding, and improve welding quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a welding fixture for automobile metal parts, including a mounting plate, a driving box is arranged on the upper end of the mounting plate, a rotating column is arranged for rotation inside the driving box, a worm wheel is arranged on the fixed sleeve on the outer arc surface of the rotating column, a worm gear meshing with the worm gear is arranged for rotation inside the driving box, a rotating frame is arranged on the upper end of the rotating column, rectangular plates are arranged on the left and right sides of the rotating frame respectively through a rotating shaft, an electric drive unit 1 for driving the worm gear to rotate is arranged inside the driving box, an electric drive unit 2 is arranged on the right side of the rotating frame, a clamping mechanism is arranged on the inner side surface of the mounting plate, the electric drive unit 1 includes a motor 2 arranged inside the driving box, the output shaft of the motor 2 is connected to the front end of the worm gear through a coupling, and the electric drive unit 2 includes a motor 1 arranged on the right side of the rotating frame, the output shaft of the motor 1 is connected to the rightmost side through a coupling The right end of the side rotating shaft is connected, and the clamping mechanism includes electric push rods three respectively arranged on the inner side surfaces of the two rectangular plates, and clamping plates are arranged on the telescopic ends of the two electric push rods three, and two limit plates are slidably connected inside the two clamping plates, and a rotating seat is arranged at one end of the four limit plates away from the vertical center of the mounting plate, and connecting rods are rotatably connected inside the four rotating seats, and connecting plates are arranged on the upper ends of the two clamping plates, and electric push rods one are arranged on the upper ends of the two connecting plates, and connecting frames are arranged on the telescopic ends of the two electric push rods one, and two adjacent connecting rods are rotatably connected with adjacent connecting frames respectively, and vertical limit assemblies are arranged on the upper ends of the connecting plates, and the vertical limit assemblies include electric push rods two arranged on the upper ends of the two connecting plates, and moving plates are arranged on the telescopic ends of the two electric push rods two, and docking plates are arranged on the relative inner sides of the two clamping plates

[0006] As a further improvement of the utility model, a placement box is provided at the upper end of the mounting plate, a control panel is placed inside the placement box, and motor 1, motor 2, electric push rod 1, electric push rod 2 and electric push rod 3 are all electrically connected to the control panel.

[0007] As a further improvement of the utility model, mounting holes are provided at the four corners of the mounting plate.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] First, by placing the automobile metal parts on the upper ends of the two docking plates, and then turning on the third electric push rod to operate, the telescopic end drives the clamping plates on both sides to approach each other to clamp the left and right sides of the automobile metal parts, then turning on the first electric push rod to operate, the telescopic end drives the connecting frames on both sides to move away from each other, so that the connecting rod rotates and contracts, driving the limit plates on both sides to clamp the front and back sides of the automobile metal parts, and then turning on the second electric push rod to operate, the telescopic end drives the moving plate to move downward to cooperate with the docking plate to clamp the upper end of the automobile metal parts, so that the automobile metal parts can be clamped in all directions, reducing welding deformation, avoiding the movement or falling off of metal parts, ensuring the safety of the welding process, and improving the welding quality.

[0010] Secondly, by turning on the motor, the output shaft drives the rectangular plate on the rotating shaft to rotate, so that the automobile metal parts on the clamping mechanism rotate vertically, and the vertical welding angle can be adjusted, which reduces the moving distance of the welding gun and the time of repositioning, thereby improving the efficiency of the welding operation.

[0011] Thirdly, by turning on motor 2, the output shaft rotates to drive the worm to rotate, and then drives the worm wheel meshing with it to rotate, driving the rotating frame on the rotating column to rotate horizontally. The multi-degree-of-freedom rotation function can ensure that welding is performed from the best angle.

[0012] Fourthly, the welding fixture can be installed through the mounting holes on the mounting plate, and the welding fixture can be quickly installed in a suitable position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the drive box of the utility model.

[0018] In the figure: 101, mounting plate; 102, drive box; 103, mounting hole; 104, motor one; 105, rotating frame; 106, rotating column; 107, worm; 108, motor two; 109, rectangular plate; 201, electric push rod one; 202, moving plate; 203, limit plate; 204, clamping plate; 205, electric push rod two; 206, docking plate; 207, rotating seat; 208, connecting rod; 209, electric push rod three; 210, connecting plate; 211, connecting frame; 301, placement box; 302, control panel. DETAILED DESCRIPTION

[0019] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0020] like Figure 1 , 2 , 3, and 4, a welding fixture for automobile metal parts includes a mounting plate 101, a driving box 102 is arranged on the upper end of the mounting plate 101, a rotating column 106 is arranged inside the driving box 102, a worm gear is fixedly sleeved on the outer arc surface of the rotating column 106, a worm 107 meshing with the worm gear is arranged inside the driving box 102, a rotating frame 105 is arranged on the upper end of the rotating column 106, and rectangular plates 109 are arranged on the left and right sides of the rotating frame 105 through a rotating shaft. An electric drive unit 1 for driving the worm 107 to rotate is arranged inside, an electric drive unit 2 is arranged on the right side of the rotating frame 105, a clamping mechanism is arranged on the inner side surface of the mounting plate 101, the electric drive unit 1 includes a motor 2 108 arranged inside the drive box 102, the output shaft of the motor 2 108 is connected to the front end of the worm 107 through a coupling, and the electric drive unit 2 includes a motor 104 arranged on the right side of the rotating frame 105, and the output shaft of the motor 104 is connected to the right end of the rightmost rotating shaft through a coupling.

[0021] like Figure 1 , 2As shown in FIG. 3 , the clamping mechanism includes electric push rods 209 respectively arranged on the inner side surfaces of the two rectangular plates 109, and the telescopic ends of the two electric push rods 209 are each provided with a clamping plate 204, and the insides of the two clamping plates 204 are both slidably connected with two limit plates 203, and the ends of the four limit plates 203 away from the vertical center of the mounting plate 101 are each provided with a rotating seat 207, and the insides of the four rotating seats 207 are each rotatably connected with a connecting rod 208, and the upper ends of the two clamping plates 204 are each provided with a connecting plate 210, and the two connecting plates 210 are 0 are both provided with electric push rods 201 at the upper ends, connecting frames 211 are provided on the telescopic ends of the two electric push rods 201, two front and rear adjacent connecting rods 208 are respectively rotatably connected with the adjacent connecting frames 211, vertical limit assemblies are both provided at the upper ends of the connecting plates 210, and the vertical limit assemblies include electric push rods 205 provided at the upper ends of the two connecting plates 210, moving plates 202 are both provided on the telescopic ends of the two electric push rods 205, and docking plates 206 are respectively provided on the opposite inner sides of the two clamping plates 204.

[0022] like Figure 1 As shown, a placement box 301 is provided at the upper end of the mounting plate 101, and a control panel 302 is placed inside the placement box 301. Motor 1 104, motor 2 108, electric push rod 1 201, electric push rod 2 205 and electric push rod 3 209 are all electrically connected to the control panel 302.

[0023] The personnel places the automobile metal parts to be welded on the upper ends of the two docking plates 206, and then controls the control panel 302 to open the electric push rod 3 209 for operation. The telescopic end drives the clamping plates 204 on both sides to move closer to each other to clamp the left and right sides of the automobile metal parts. Then, the personnel controls the control panel 302 to open the electric push rod 1 201 for operation. The telescopic end drives the connecting frames 211 on both sides to move away from each other, so that the connecting rod 208 rotates and contracts, driving the limit plates 203 on both sides to clamp the front and rear sides of the automobile metal parts. Then, the control panel 302 controls the opening of the electric push rod 205, and the telescopic end drives the movable plate 202 to move downward to cooperate with the docking plate 206 to clamp the upper end of the automobile metal parts, thereby completing the comprehensive clamping of the automobile metal parts.

[0024] During the welding of automobile metal parts, the control panel 302 is used to control the motor 104 to start running, and the output shaft drives the rectangular plate 109 on the rotating shaft to rotate, so that the automobile metal parts on the clamping mechanism rotate vertically, and the vertical welding angle can be adjusted. The control panel 302 can also be used to control the motor 2 108 to start running, and the output shaft rotates to drive the worm 107 to rotate, and then drives the worm gear meshing with it to rotate, and drives the rotating frame 105 on the rotating column 106 to rotate horizontally, thereby increasing the flexibility of welding.

[0025] According to another embodiment of the present invention, Figure 1 As shown, four corners of the mounting plate 101 are provided with mounting holes 103 , and the welding fixture can be installed through the mounting holes 103 on the mounting plate 101 .

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A welding fixture for automobile metal parts, comprising a mounting plate (101), characterized in that: A driving box (102) is arranged at the upper end of the mounting plate (101), a rotating column (106) is rotatably arranged inside the driving box (102), a worm wheel is fixedly sleeved on the outer arc surface of the rotating column (106), a worm (107) meshingly connected with the worm wheel is rotatably arranged inside the driving box (102), a rotating frame (105) is arranged at the upper end of the rotating column (106), rectangular plates (109) are rotatably arranged on the left and right sides of the rotating frame (105) through a rotating shaft, an electric driving unit 1 for driving the worm (107) to rotate is arranged inside the driving box (102), an electric driving unit 2 is arranged on the right side of the rotating frame (105), and a clamping mechanism is arranged on the inner side surface of the mounting plate (101).

2. A welding fixture for automobile metal parts as claimed in claim 1, characterized in that: The electric drive unit 1 includes a motor 2 (108) arranged inside the drive box (102), and the output shaft of the motor 2 (108) is connected to the front end of the worm (107) through a coupling.

3. A welding fixture for automobile metal parts as claimed in claim 2, characterized in that: The electric drive unit 2 comprises a motor 1 (104) arranged on the right side of the rotating frame (105), and the output shaft of the motor 1 (104) is connected to the right end of the rightmost rotating shaft through a coupling.

4. A welding fixture for automobile metal parts as claimed in claim 3, characterized in that: The clamping mechanism comprises electric push rods (209) respectively arranged on the inner side surfaces of the two rectangular plates (109), the telescopic ends of the two electric push rods (209) are each provided with a clamping plate (204), the interiors of the two clamping plates (204) are each slidably connected with two limit plates (203), the ends of the four limit plates (203) away from the vertical center of the mounting plate (101) are each provided with a rotating seat (207), the interiors of the four rotating seats (207) are each rotatably connected with a connecting rod (208), the upper ends of the two clamping plates (204) are each provided with a connecting plate (210), the upper ends of the two connecting plates (210) are each provided with an electric push rod (201), the telescopic ends of the two electric push rods (201) are each provided with a connecting frame (211), the two front and rear adjacent connecting rods (208) are respectively rotatably connected with the adjacent connecting frame (211), and the upper ends of the connecting plates (210) are each provided with a vertical limit assembly.

5. The welding fixture for automobile metal parts according to claim 4, characterized in that: The vertical limiting assembly comprises electric push rods (205) arranged at the upper ends of two connecting plates (210), movable plates (202) are arranged on the telescopic ends of the two electric push rods (205), and docking plates (206) are respectively arranged on the opposite inner sides of the two clamping plates (204).

6. The welding fixture for automobile metal parts according to claim 1, characterized in that: The four corners of the mounting plate (101) are each provided with mounting holes (103).

7. The welding fixture for automobile metal parts according to claim 5, characterized in that: A placement box (301) is provided at the upper end of the mounting plate (101), a control panel (302) is placed inside the placement box (301), and motor 1 (104), motor 2 (108), electric push rod 1 (201), electric push rod 2 (205) and electric push rod 3 (209) are all electrically connected to the control panel (302).

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