A welding fixture

Abstract

The utility model belongs to welding technical field, concretely relates to a kind of welding tool, including bottom plate and positioning structure, the positioning structure includes positioning piece and linear drive part, the positioning piece includes two positioning parts, two positioning parts are horizontally set on bottom plate and mutually perpendicular, and the positioning area of L-shaped piece is formed between the side of two positioning parts, the linear drive part is horizontally set on bottom plate, and the output end of linear drive part is set towards positioning area and perpendicular with the side of one positioning part, and the output end of linear drive part is provided with the magnetic attraction piece for adsorbing web for setting. The utility model can realize the effective positioning and support of L-shaped piece and web, saves the process of manually pre-spot welding fixed web and L-shaped piece, reduces artificial cost, improves the welding efficiency of support, is also conducive to improving the automation degree of support welding, and overall structure is simple.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, and specifically relates to a welding fixture. Background Technology

[0002] Accessories on the frame of new energy vehicles (such as fire extinguishers and air pumps) require brackets for fixation. A single vehicle may have anywhere from a dozen to several dozen brackets, and a large order batch may require welding hundreds of brackets. These brackets are typically L-shaped and have stiffening plates. Traditionally, these bracket parts are mostly welded manually, with the stiffening plates held by hand for spot welding to secure them to the L-shaped part before further welding. This method is inefficient and labor-intensive. Even with automated robotic welding, the stiffening plates are typically held manually for spot welding to secure them to the L-shaped part before the robot welds, still resulting in high labor costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a welding fixture with a simple structure that can effectively position and support L-shaped parts and stiffeners, eliminate the process of manually spot welding and fixing stiffeners and L-shaped parts, reduce labor costs, improve the welding efficiency of the bracket, and also help improve the automation level of bracket welding.

[0004] The present invention includes a base plate and a positioning structure. The positioning structure includes a positioning component and a linear drive component. The positioning component includes two positioning parts, which are horizontally arranged on the base plate and perpendicular to each other. An L-shaped positioning area is formed between one side of the two positioning parts. The linear drive component is horizontally arranged on the base plate. The output end of the linear drive component is oriented towards the positioning area and perpendicular to one side of one of the positioning parts. A magnetic suction component for adsorbing the rib plate is provided on the output end of the linear drive component.

[0005] Furthermore, the position of the linear drive on the base plate is adjustable.

[0006] Furthermore, the base plate is provided with a mounting base, and the top of the mounting base is provided with an array of fixing holes. The array of fixing holes is arranged along the direction from the end of the mounting base away from the positioning area to the end closer to the positioning area. The linear drive is located on the top of the mounting base and is connected to some of the fixing holes by corresponding bolts.

[0007] Furthermore, the mounting base and the two positioning parts are detachably mounted on the base plate.

[0008] Furthermore, the linear drive component is a cylinder.

[0009] Furthermore, a manual valve is provided on the circuit connecting the cylinder to the compressed air source, and the manual valve is located on the base plate.

[0010] Furthermore, the two positioning parts are integrated into one unit.

[0011] Furthermore, the two positioning portions are provided with a groove on one side for forming the positioning area, and the groove extends through the top of the positioning portion.

[0012] Furthermore, the positioning structure is provided in two or more sets.

[0013] Furthermore, when the linear drive is a cylinder, the cylinders in two or more positioning structures share a manual valve.

[0014] The beneficial effects of this utility model are as follows: The L-shaped component is placed in the positioning area on the base plate, and the adjacent sides of the bottom of the L-shaped component are aligned with the two positioning parts, achieving rapid positioning of the L-shaped component. The magnetic suction component keeps the stiffening plate vertical on the L-shaped component. Then, the side of the L-shaped component and stiffening plate opposite to the magnetic suction component can be directly welded using a robotic welding torch. After welding this side, the output end of the linear drive component retracts, and the robotic welding torch can then weld the other side of the L-shaped component and stiffening plate. Based on this welding fixture, effective positioning and support of the L-shaped component and stiffening plate can be achieved, eliminating the need for manual pre-welding of the stiffening plate and L-shaped component, reducing labor costs, improving the welding efficiency of the bracket, and enhancing the automation level of bracket welding. Furthermore, the overall structure of the welding fixture is simple, easy to manufacture, and low in cost. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the welding fixture of this utility model.

[0016] Figure 2 This is a top view of one embodiment of the welding fixture of this utility model.

[0017] Figure 3 This is a schematic diagram of the second embodiment of the welding fixture of this utility model.

[0018] In the diagram: 1. Base plate; 2. Positioning component; 21. Positioning part; 211. Groove; 3. Linear drive component; 4. Magnetic suction component; 5. Mounting base; 51. Fixing hole; 6. Manual valve; 7. Robot welding gun; 100. L-shaped component; 200. Rib plate. Detailed Implementation

[0019] like Figures 1-3As shown, this utility model provides a welding fixture for use with a welding robot. The welding fixture includes a base plate 1 and a positioning structure. The positioning structure includes a positioning element 2 and a linear drive element 3. The positioning element 2 includes two positioning parts 21, which are horizontally arranged on the base plate 1 and perpendicular to each other, forming a right-angle area on the base plate 1, thus creating a positioning area for positioning an L-shaped part 100 between one side of the two positioning parts 21. The linear drive element 3 is horizontally arranged on the base plate 1, and the movement direction of the output end of the linear drive element 3 is parallel to the surface of the base plate 1. The output end of the linear drive element 3 faces the positioning area and is perpendicular to one side of one of the positioning parts 21. A magnetic suction element 4 is provided on the output end of the linear drive element 3 for attracting the rib plate 200. The magnetic suction element 4 is specifically a magnet, which is fixed to the end face of the output end of the linear drive element 3 or embedded in the end of the output end of the linear drive element 3.

[0020] Based on the above setup, during the welding of the bracket, the L-shaped component 100 is placed in the positioning area on the base plate 1, and the adjacent sides of the bottom of the L-shaped component 100 are aligned with the two positioning parts 21 to achieve rapid positioning of the L-shaped component 100. This allows the output end of the linear drive component 3 to extend, and the stiffener 200 is placed vertically on the L-shaped component 100 and attracted to the magnetic component 4. Under the action of the magnetic component 4, the stiffener 200 can be held in place on the L-shaped component 100 as follows: Figures 1-3 In the vertical position shown, the L-shaped component 100 and the stiffening plate 200 can then be directly welded to the side opposite to the magnetic suction component 4 using the robotic welding gun 7. After welding this side, the output end of the linear drive component 3 retracts, and the robotic welding gun 7 can then weld the other side of the L-shaped component 100 and the stiffening plate 200. Based on this welding fixture, the L-shaped component 100 and the stiffening plate 200 can be effectively positioned and supported, eliminating the need for manual pre-welding of the stiffening plate 200 and the L-shaped component 100. This reduces labor costs, improves the welding efficiency of the bracket, and enhances the automation level of bracket welding. Furthermore, the overall structure of the welding fixture is simple, easy to manufacture, and has a low cost.

[0021] In this invention, the position of the linear drive component 3 on the base plate 1 is adjustable so that the position of the linear drive component 3 can be adjusted according to the size of the L-shaped component 100, so as to ensure effective support for the stiffener 200 at the corresponding position.

[0022] Specifically, a mounting base 5 is provided on the base plate 1. An array of fixing holes 51 is provided on the top of the mounting base 5. The array of fixing holes 51 are arranged along the direction from the end of the mounting base 5 furthest from the positioning area to the end closest to the positioning area. The linear drive component 3 is located on the top of the mounting base 5 and is connected to some of the fixing holes 51 by corresponding bolts. When the position of the linear drive component 3 needs to be adjusted, it can be removed and connected to different fixing holes 51 by bolts. This adjustment method is simple in structure and ensures effective fixation of the position of the linear drive component 3 after adjustment.

[0023] In one embodiment of this invention, the mounting base 5 and the two positioning parts 21 are welded onto the base plate 1. In other embodiments of this invention, the mounting base 5 and the two positioning parts 21 are detachably mounted on the base plate 1, for example, by bolts, to facilitate replacement of the mounting base 5 and the two positioning parts 21.

[0024] Preferably, the linear drive component 3 is a cylinder, which has low purchase cost, facilitates cost control of welding tooling, has good environmental adaptability, and is relatively simple to maintain.

[0025] A manual valve 6 is installed on the connection circuit between the cylinder and the compressed air source. The cylinder's extension and retraction are controlled by the manual valve 6, which is located on the base plate 1. Based on this design, the extension and retraction of the cylinder can be controlled directly by moving the lever of the manual valve 6 via the robot welding torch 7. After welding the L-shaped part 100 and the stiffening plate 200 on the side opposite to the magnetic suction part 4, the robot welding torch 7 moves the lever of the manual valve 6, causing the cylinder's output end to retract, and then welding is performed on the other side of the L-shaped part 100 and the stiffening plate 200.

[0026] In this utility model, the two positioning parts 21 are integrally set, that is, the positioning part 2 is an integral structural part, which can be directly fixed on the base plate 1 for use. Compared with the split structure, the positioning operation of the relative position of the two positioning parts 21 during installation can be eliminated.

[0027] The two positioning portions 21 have a groove 211 on one side for forming the positioning area, and the groove 211 extends through the top of the positioning portion 21. This groove 211 facilitates the dissipation of heat generated during welding.

[0028] In the first embodiment of this utility model, as follows: Figure 1 and Figure 2 As shown, a set of positioning structures is provided. In the second embodiment of this utility model, as... Figure 3 As shown, the positioning structure is provided in two or more sets, and two or more brackets can be welded sequentially by the robot welding gun 7.

[0029] When the linear drive 3 is a cylinder, the cylinders in two or more positioning structures share a manual valve 6, i.e. Figure 3 As shown, the manual valve 6 is connected to a compressed air source via a pipeline. Two or more cylinders in the positioning structure are connected to the manual valve 6 via corresponding pipelines. The extension and retraction of two or more cylinders are controlled by one manual valve 6, further facilitating cost control of the welding fixture. In the configuration where two or more cylinders share one manual valve 6, when the robotic welding torch 7 performs welding, it first welds the side of the L-shaped part 100 and the stiffening plate 200 away from the magnetic suction part 4. Then, the robotic welding torch 7 moves the lever of the manual valve 6, causing the output ends of the two or more cylinders to retract, before welding the other side of the L-shaped part 100 and the stiffening plate 200.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0031] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A welding fixture, characterized in that, The system includes a base plate (1) and a positioning structure. The positioning structure includes a positioning element (2) and a linear drive element (3). The positioning element (2) includes two positioning parts (21). The two positioning parts (21) are horizontally arranged on the base plate (1) and perpendicular to each other. An L-shaped positioning area (100) is formed between one side of the two positioning parts (21). The linear drive element (3) is horizontally arranged on the base plate (1). The output end of the linear drive element (3) is set towards the positioning area and is perpendicular to one side of one of the positioning parts (21). A magnetic suction element (4) for adsorbing the rib plate (200) is provided on the output end of the linear drive element (3).

2. The welding fixture as described in claim 1, characterized in that, The position of the linear drive (3) on the base plate (1) is adjustable.

3. The welding fixture as described in claim 2, characterized in that, The base plate (1) is provided with a mounting base (5), and the top of the mounting base (5) is provided with an array of fixing holes (51). The array of fixing holes (51) is arranged along the direction from the end of the mounting base (5) away from the positioning area to the end near the positioning area. The linear drive (3) is located on the top of the mounting base (5) and is connected to some of the fixing holes (51) by corresponding bolts.

4. The welding fixture as described in claim 3, characterized in that, The mounting base (5) and the two positioning parts (21) are detachably mounted on the base plate (1).

5. The welding fixture as described in any one of claims 1-4, characterized in that, The linear drive component (3) is a cylinder.

6. The welding fixture as described in claim 5, characterized in that, A manual valve (6) is provided on the circuit connecting the cylinder and the compressed air source, and the manual valve (6) is located on the base plate (1).

7. The welding fixture as described in any one of claims 1-4 and 6, characterized in that, The two positioning parts (21) are integrated.

8. The welding fixture as described in any one of claims 1-4 and 6, characterized in that, The two positioning parts (21) are provided with a groove (211) on one side for forming the positioning area, and the groove (211) is provided through the top of the positioning part (21).

9. The welding fixture as described in any one of claims 1-4 and 6, characterized in that, The positioning structure is provided in two or more sets.

10. The welding fixture as described in claim 9, characterized in that, When the linear drive (3) is a cylinder, the cylinders in two or more positioning structures share a manual valve (6).

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