Clamping mechanism for vehicle body welding

Abstract

The utility model relates to a clamping mechanism, in particular to a clamping mechanism for welding a vehicle body. The clamping mechanism for vehicle body welding is compact in structure, and the welding angle can be conveniently adjusted. A clamping mechanism for vehicle body welding comprises a frame body, an air cylinder, a clamping mechanism body, an angle adjusting mechanism and the like, the clamping mechanism body is arranged between the frame body and a telescopic rod of the air cylinder, and the angle adjusting mechanism used for rotationally adjusting the angle of a clamping arm and the angle of a fixing arm is arranged at the bottom of the frame body. A telescopic rod of an air cylinder is extended by controlling the air cylinder, a clamping arm can extend towards one side of a fixed arm under the matching action of a push seat and a guide sleeve, then a vehicle body metal plate needing to be welded can be clamped and fixed through the matching action of the clamping arm and the fixed arm, and a driving motor is started to drive the vehicle body metal plate to be welded through the transmission action of a worm and a worm wheel. And a clamping mechanism on the clamping mechanism can be flexibly driven to rotate to adjust the angle.

Description

Technical Field

[0001] The utility model relates to a clamping mechanism, in particular to a clamping mechanism used for vehicle body welding. Background Art

[0002] The clamping mechanism of body welding plays a vital role in the automobile manufacturing process. With the rapid development of the automobile industry, the requirements for body welding technology are becoming higher and higher. The performance of the clamping mechanism, as a key equipment in the welding process, directly affects the welding quality and production efficiency.

[0003] In the existing technology, the ordinary clamping mechanism used for car body welding is large in size, not compact in structure layout, and not convenient for conveniently rotating the clamped car body metal sheet to adjust the angle position of the welding point, which easily causes the problem of cold welding due to incorrect welding point angle when the welding gun contacts the metal sheet.

[0004] To this end, a clamping mechanism for body welding which has a compact structure and is convenient for adjusting the welding angle is proposed to solve the above technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art that the clamping mechanism used for body welding is not compact enough and is not convenient for precise rotation and adjustment of the position angle of the welding point on the body metal sheet, the technical problem to be solved is: to provide a clamping mechanism for body welding that has a compact structure and is convenient for adjusting the welding angle.

[0006] The technical solution of the utility model is: a clamping mechanism for body welding, comprising a frame, a support and a cylinder, a support is arranged outside the frame, a cylinder is assembled on the support, a telescopic rod of the cylinder is slidably penetrated in the frame, a clamping mechanism and an angle adjustment mechanism are also included, a clamping mechanism is arranged between the frame and the telescopic rod of the cylinder, the clamping mechanism comprises a push seat, a guide sleeve, a clamping arm and a fixed arm, a push seat is slidably arranged in the frame, and the push seat is connected to the telescopic rod of the cylinder Then, two guide sleeves are provided in the middle of the frame, and a clamping arm is movably connected between the two guide sleeves through a rotating shaft. A guide groove that can be adapted to the rotating shaft is provided on the push seat, a through groove is provided on the upper part of the frame, and the clamping arm is slidably inserted into the through groove, a fixed arm is provided on the top of the frame, and the metal sheet welded to the car body can be clamped by the cooperation of the clamping arm and the fixed arm, and an angle adjustment mechanism for rotationally adjusting the angle of the clamping arm and the fixed arm is provided at the bottom of the frame.

[0007] As an improvement of the above-mentioned scheme, the angle adjustment mechanism includes a rotating seat, a base, a worm gear, a driving motor and a worm. A rotating seat is arranged at the bottom of the frame, and a worm gear is fixedly mounted in the rotating seat through a rotating shaft. A base is arranged under the frame, and the worm gear is rotatably connected to the base. The base is wrapped around the outer periphery of the rotating seat. A driving motor is arranged on the base, and a worm gear is connected to the output shaft of the driving motor through a coupling, and the worm gear is meshed with the worm wheel.

[0008] As an improvement of the above solution, the guide groove is arranged as an inclined structure with a high front and a low rear.

[0009] As an improvement of the above scheme, a shaft sleeve is further included. The shaft is sleeved with the shaft sleeve, and the shaft sleeve is in sliding contact with the guide groove and the guide sleeve respectively.

[0010] As an improvement of the above solution, a rubber pad is further included, and a rubber pad is provided on one side of the clamping arm opposite to the fixed arm.

[0011] As an improvement of the above solution, a retaining frame is further included. The retaining frame is arranged on a side of the base close to the driving motor, and the retaining frame is located above the driving motor.

[0012] The beneficial effect is: by controlling the cylinder to extend the telescopic rod, the pushing seat and the guide sleeve cooperate to make the clamping arm extend to the side of the fixed arm, and then the clamping arm and the fixed arm cooperate to achieve the clamping and fixing of the metal sheet of the car body to be welded. The overall structure is compact, which solves the problem of large size of the existing clamping mechanism. Starting the driving motor can flexibly drive the clamping mechanism thereon to rotate and adjust the angle through the transmission action of the worm and the worm wheel, which is beneficial to accurately adjust the position angle of the welding point on the clamped metal sheet of the car body, and thus is beneficial to improve the welding quality of the metal sheet, and avoid the problem of cold welding due to incorrect angle of the welding point during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another viewing angle.

[0015] Figure 3 It is a cross-sectional view of the utility model.

[0016] Figure 4 This is a structural separation diagram of the clamping mechanism of the utility model.

[0017] Figure 5 This is a diagram of the clamping arm of the utility model in an extended state.

[0018] In the accompanying drawings: 1-frame, 2-support, 3-cylinder, 4-push seat, 40-guide groove, 5-guide sleeve, 6-clamping arm, 60-shaft sleeve, 7-fixed arm, 8-rotating seat, 9-base, 10-worm gear, 11-drive motor, 12-worm, 13-rubber pad, 14-blocking frame, 100-through groove. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0020] Embodiment: The utility model provides a clamping mechanism for body welding, see Figure 1-Figure 5 As shown, it includes a frame 1, a support 2, a cylinder 3, a clamping mechanism and an angle adjustment mechanism. The support 2 is arranged on the outside of the frame 1, and the cylinder 3 is assembled on the support 2. The telescopic rod of the cylinder 3 slides through the frame 1. A clamping mechanism is arranged between the frame 1 and the telescopic rod of the cylinder 3. The clamping mechanism includes a push seat 4, a guide sleeve 5, a clamping arm 6 and a fixed arm 7. The push seat 4 is slidably arranged in the frame 1, and the push seat 4 is connected to the telescopic rod of the cylinder 3. Two guide sleeves 5 are arranged in the middle of the frame 1, and the clamping arm 6 is movably connected between the two guide sleeves 5 through a rotating shaft. A guide groove 40 that can be adapted to the rotating shaft is provided on the push seat 4, a through groove 100 is provided on the upper part of the frame 1, and the clamping arm 6 is slidably inserted into the through groove 100, and the telescopic rod of the control cylinder 3 is extended or shortened. The clamping arm 6 can be pushed to extend upward or retract downward through the cooperation of the push seat 4 and the guide sleeve 5. A fixed arm 7 is provided on the top of the frame 1, and the fixed arm 7 is an L-shaped structure. Through the mutual cooperation of the clamping arm 6 and the fixed arm 7, the metal sheet welded on the car body can be clamped and fixed. An angle adjustment mechanism is provided at the bottom of the frame 1.

[0021] For further information, see Figure 1-Figure 4 As shown, the angle adjustment mechanism includes a rotating seat 8, a base 9, a worm gear 10, a driving motor 11 and a worm 12. A rotating seat 8 is arranged at the bottom of the frame 1. The rotating seat 8 is an n-type structure. The rotating seat 8 is fixedly mounted with a worm gear 10 through a rotating shaft. The worm gear 10 is located on the inner side of the rotating seat 8 with the n-type structure. A base 9 is arranged below the frame 1, and the worm gear 10 is rotatably connected to the base 9. The base 9 is wrapped around the outer periphery of the rotating seat 8. A driving motor 11 is arranged on the base 9. The output shaft of the driving motor 11 is connected with a worm gear 12 through a coupling, and the worm gear 12 is meshed with the worm gear 10. The driving motor 11 is controlled to drive the worm gear 12 to rotate forward and reversely, which is conducive to driving the rotating seat 8 and the clamping mechanism thereon to rotate and adjust the angle through the worm gear 10.

[0022] For further information, see Figure 4As shown, it also includes a sleeve 60, which is mounted on the rotating shaft, and the sleeve 60 is in sliding contact with the guide groove 40 and the guide sleeve 5 respectively, which is beneficial to reducing the friction coefficient between the rotating shaft and the guide groove 40 and the guide sleeve 5. The guide groove 40 is an inclined structure with a high front and a low rear, which is beneficial to pushing the sleeve 60 and the clamping arm 6 thereon to extend or shorten.

[0023] For further information, see Figure 1-Figure 5 As shown, a rubber pad 13 is also included. The rubber pad 13 is arranged on the side opposite to the clamping arm 6 and the fixed arm 7, which is beneficial to increase the friction coefficient between the clamping arm 6 and the fixed arm 7, and further helps to clamp and stabilize the metal sheet of the vehicle body.

[0024] In addition, see Figure 1 and Figure 2 As shown, a retaining frame 14 is also included. The retaining frame 14 is arranged on one side of the base 9 close to the driving motor 11, and the retaining frame 14 is located above the driving motor 11. The retaining frame 14 can limit the rotation position of the clamping mechanism to avoid excessive rotation and interference with the driving motor 11.

[0025] When in use, by controlling the drive motor 11 to rotate, the worm 12 can drive the worm wheel 10 to rotate, and then drive the frame 1 and the clamping arm 6 and the fixed arm 7 thereon to swing accordingly, so that the clamping arm 6 and the fixed arm 7 can be aligned with the metal sheets of the vehicle body in different positions and directions. By controlling the cylinder 3 to extend the telescopic rod thereon, the push seat 4 can be pushed to move. Under the pushing action of the guide groove 40 and the rotating shaft and the sleeve 60 on the push seat 4, the clamping arm 6 can be moved in the direction of the fixed arm 7. In this way, through the cooperation of the clamping arm 6 and the fixed arm 7, the metal sheets in different positions and directions can be clamped and limited, which is convenient to use.

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A clamping mechanism for vehicle body welding, comprising a frame (1), a support (2) and a cylinder (3), wherein the frame (1) is provided with a support (2) outside, the support (2) is mounted with a cylinder (3), and a telescopic rod of the cylinder (3) is slidably penetrated through the frame (1), characterized in that: It also includes a clamping mechanism and an angle adjustment mechanism. A clamping mechanism is provided between the frame (1) and the telescopic rod of the cylinder (3). The clamping mechanism includes a push seat (4), a guide sleeve (5), a clamping arm (6) and a fixed arm (7). A push seat (4) is slidably provided in the frame (1), and the push seat (4) is connected to the telescopic rod of the cylinder (3). Two guide sleeves (5) are provided in the middle of the frame (1). A clamping arm (6) is movably connected between the two guide sleeves (5) via a rotating shaft. The push seat (4) is provided with a guide groove (40) which can be adapted to the rotating shaft, the upper part of the frame (1) is provided with a through groove (100), and the clamping arm (6) is slidably inserted into the through groove (100), the top of the frame (1) is provided with a fixed arm (7), and the metal plate welded to the vehicle body can be clamped by the cooperation of the clamping arm (6) and the fixed arm (7), and the bottom of the frame (1) is provided with an angle adjustment mechanism for rotationally adjusting the angle of the clamping arm (6) and the fixed arm (7).

2. A clamping mechanism for body welding as claimed in claim 1, characterized in that: The angle adjustment mechanism comprises a rotating seat (8), a base (9), a worm gear (10), a driving motor (11) and a worm (12); the rotating seat (8) is arranged at the bottom of the frame (1); the worm gear (10) is fixedly mounted inside the rotating seat (8) via a rotating shaft; a base (9) is arranged below the frame (1); the worm gear (10) is rotatably connected to the base (9); the base (9) is wrapped around the outer periphery of the rotating seat (8); the driving motor (11) is arranged on the base (9); the output shaft of the driving motor (11) is connected to the worm gear (12) via a coupling; and the worm gear (12) is meshed with the worm gear (10).

3. A clamping mechanism for body welding as claimed in claim 1, characterized in that: The guide groove (40) is arranged in an inclined structure with a high front and a low rear.

4. A clamping mechanism for body welding as claimed in claim 1, characterized in that: It also includes a shaft sleeve (60), the shaft being sleeved on the rotating shaft, and the shaft sleeve (60) being in sliding contact with the guide groove (40) and the guide sleeve (5) respectively.

5. A clamping mechanism for body welding as claimed in claim 1, characterized in that: It also includes a rubber pad (13), and a rubber pad (13) is provided on the side of the clamping arm (6) opposite to the fixing arm (7).

6. A clamping mechanism for body welding as claimed in claim 1, characterized in that: It also includes a retaining frame (14), which is disposed on a side of the base (9) close to the drive motor (11), and the retaining frame (14) is located above the drive motor (11).

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