Spot welding device for beam of oil filling port of oil tank

Abstract

The utility model relates to the technical field of automobile parts, and discloses an oil tank oil filling port beam spot welding device which comprises a workbench, the two sides of the workbench are fixedly connected with a connecting block and an L-shaped side plate respectively, the top of the L-shaped side plate is fixedly connected with a top plate, the bottom of the top plate is provided with a spot welding assembly, the top of the connecting block is fixedly connected with a supporting block in an inserted mode, and the top of the supporting block is fixedly connected with a base. According to the novel welding device, a first servo motor is started, four clamping pieces are used for clamping the two sides of a welding material, and when the distance between two moving blocks is adjusted, two first rotating shafts slide on a cross-shaped inserting piece, so that after the distance between the two moving blocks is adjusted, through starting of a third servo motor, the welding material can be clamped through the clamping pieces; and two second bidirectional threaded rods in the two moving blocks can synchronously rotate, so that the rotation of the two second bidirectional threaded rods is synchronously utilized to adjust the distance between the four clamping pieces to clamp the other two sides of the welding material, and the stability of the welding material during spot welding is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a spot welding device for a fuel tank filler neck cross beam. Background Art

[0002] The fuel tank filler neck is a component used to add fuel to a vehicle. It is usually located on the side of the vehicle body and is connected to the outside through an opening with a lid. The design of the filler neck should not only facilitate refueling but also prevent fuel leakage and evaporation. In order to ensure the stable installation of the fuel tank filler neck, a cross beam bracket is required. When manufacturing the cross beam bracket, spot welding is needed to ensure its support strength.

[0003] When spot welding carbon steel or stainless steel, it is necessary to adjust the position of the welding spot according to the size of different materials. When spot welding, since two pieces of carbon steel or stainless steel materials that are fitted together are welded, it is necessary to ensure that there is no displacement when the two materials are fitted. Once the clamping is unstable, it is easy to cause welding spot errors, resulting in material waste. Moreover, depending on the different loads of the fuel tank, the required material sizes are different, and it is necessary to ensure the stability of welding for different sizes of welding materials.

[0004] Therefore, it is necessary to design a spot welding device for the fuel tank filler neck cross beam to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a spot welding device for a fuel tank filler neck cross beam to solve the technical problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical solution: a spot welding device for a fuel tank filler beam, including a workbench, with a connecting block and an L-shaped side plate fixedly connected to both sides of the workbench respectively. A top plate is fixedly connected to the top of the L-shaped side plate, and a spot welding assembly is arranged at the bottom of the top plate. A support block is fixedly inserted at the top of the connecting block, and a third servo motor is fixedly connected to one side of the support block. The output shaft of the third servo motor is connected to a second rotating shaft, and the top end of the support block is rotatably connected to another second rotating shaft through a bearing. One end of each of the two second rotating shafts is fixedly sleeved with a spur gear, and the two spur gears are meshed with each other. A cross plug is fixedly inserted inside the second rotating shaft at the top. A groove is formed at the top of the workbench, and a first servo motor is fixedly connected to one side of the workbench. The output shaft of the first servo motor is fixedly connected to a first bidirectional threaded rod, and both ends of the first bidirectional threaded rod are threadedly sleeved with threaded sleeve blocks. The top of each of the two threaded sleeve blocks is fixedly connected to a moving block. A chute is formed at the top of each of the two moving blocks, and a device box is fixedly connected to one side of each of the two moving blocks. One side of the inner cavity of the device box is rotatably connected to a first rotating shaft through a gear, and a square block is fixedly sleeved at one end of the first rotating shaft inside the device box. The other side of the inner cavity of the device box is rotatably connected to a second bidirectional threaded rod through a bearing, and a first bevel gear is fixedly connected to the other end of the second bidirectional threaded rod inside the inner cavity of the device box. The first bevel gear is meshed with a second bevel gear, and both ends of the second bidirectional threaded rod inside the chute are threadedly sleeved with threaded blocks. The top of each of the two threaded blocks is fixedly connected to a clamping member.

[0007] Preferably, both of the two threaded sleeve blocks are slidably arranged inside the groove, and both sides of the two threaded sleeve blocks are respectively in contact with both sides of the inner cavity of the groove.

[0008] Preferably, two symmetric square grooves are formed at the top of the workbench, and a second servo motor is fixedly connected to one side of the workbench. The output shaft of the second servo motor is fixedly connected to a screw rod inside one square groove, and a first plug post is fixedly connected to the inside of the other square groove. A square block is threadedly sleeved on the outer surface of the screw rod, and another square block is slidably sleeved on the outer surface of the first plug post. A second plug post is slidably inserted at the top of each of the two square blocks, and the top ends of the two second plug posts are jointly fixedly connected to a support plate. A fixing block is fixedly connected between the two square blocks, and an electronic telescopic rod is fixedly connected to the top of the fixing block. The top end of the electronic telescopic rod is fixedly connected to the bottom of the support plate.

[0009] Preferably, both ends of the cross plug are respectively inserted outside the two device boxes, and limiting blocks are fixedly connected to both ends of the cross plug.

[0010] Preferably, the length of the support plate matches the length of the moving block, and the support plate is slidably disposed between the two moving blocks.

[0011] Preferably, the clamping member is in an L shape, and an L-shaped groove is formed on one side of each clamping member. The number of the clamping members is four, and the bottoms of the four clamping members are respectively attached to the tops of the two moving blocks.

[0012] The technical solution provided by the present utility model has the following beneficial effects compared with the prior art:

[0013] First, by starting the first servo motor, the distance between the two moving blocks can be adjusted by the opposite or separating movement of the two threaded sleeve blocks. Thus, by adjusting the distance between the two moving blocks, the two sides of the welding material are clamped by the four clamping members. When the distance between the two moving blocks is adjusted, the two first rotating shafts slide on the cross plug-in. After the distance between the two moving blocks is adjusted, by starting the third servo motor, the two second bidirectional threaded rods inside the two moving blocks can rotate synchronously. Thus, by synchronously rotating the two second bidirectional threaded rods, the distance between the four clamping members is adjusted to clamp the other two sides of the welding material, ensuring the stability of the welding material during spot welding.

[0014] Second, by starting the second servo motor, the horizontal position of the support plate is adjusted by adjusting the horizontal position of the two blocks between the two moving blocks, and the vertical position of the support plate is adjusted by the telescopic movement of the electronic telescopic rod, so as to support the welding position of the welding material, ensuring the stability of the electric welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is an exploded schematic diagram of the equipment box structure of the present utility model;

[0017] Figure 3 is another exploded schematic diagram of the equipment box of the present utility model;

[0018] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0019] In the figure: 1, workbench; 2, first servo motor; 3, second servo motor; 4, L-shaped side plate; 5, top plate; 6, threaded sleeve block; 7, moving block; 8, clamping piece; 9, equipment box; 10, first rotating shaft; 11, cross plug-in; 12, second rotating shaft; 13, spur gear; 14, third servo motor; 15, support block; 16, connecting block; 17, first bidirectional threaded rod; 18, screw rod; 19, first plug post; 20, square block; 21, fixed block; 22, electronic telescopic rod; 23, support plate; 24, first bevel gear; 25, second bevel gear; 26, second bidirectional threaded rod; 27, threaded block; 28, limit block; 29, spot welding assembly; 30, second plug post. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Obviously, many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0022] Please refer to Figures 1-4, the utility model provides a spot welding device for the fuel tank filler beam, including a workbench 1. Connecting blocks 16 and L-shaped side plates 4 are fixedly connected to both sides of the workbench 1 respectively. A top plate 5 is fixedly connected to the top of the L-shaped side plate 4. A spot welding assembly 29 is arranged at the bottom of the top plate 5. A support block 15 is fixedly inserted into the top of the connecting block 16. A third servo motor 14 is fixedly connected to one side of the support block 15. The output shaft of the third servo motor 14 is connected to a second rotating shaft 12. The top end of the support block 15 is rotatably connected to another second rotating shaft 12 through a bearing. Straight gears 13 are fixedly sleeved at one ends of the two second rotating shafts 12. The two straight gears 13 are meshed with each other. A cross plug 11 is fixedly inserted into the inner part of the second rotating shaft 12 at the top. A groove is opened at the top of the workbench 1. A first servo motor 2 is fixedly connected to one side of the workbench 1. The output shaft of the first servo motor 2 is fixedly connected to a first bidirectional threaded rod 17. Threaded sleeve blocks 6 are threadedly sleeved at both ends of the first bidirectional threaded rod 17. Moving blocks 7 are fixedly connected to the tops of the two threaded sleeve blocks 6. Chutes are opened at the tops of the two moving blocks 7. Equipment boxes 9 are fixedly connected to one sides of the two moving blocks 7. A first rotating shaft 10 is rotatably connected to one side of the inner cavity of the equipment box 9 through a gear. A square block 20 is fixedly sleeved at one end of the first rotating shaft 10 inside the equipment box 9. A second bidirectional threaded rod 26 is rotatably connected to the other side of the inner cavity of the equipment box 9 through a bearing. A first bevel gear 24 is fixedly connected to the other end of the second bidirectional threaded rod 26 inside the inner cavity of the equipment box 9. The first bevel gear 24 is meshed with a second bevel gear 25. Threaded blocks 27 are threadedly sleeved at both ends of the second bidirectional threaded rod 26 inside the chute. Clamping members 8 are fixedly connected to the tops of the two threaded blocks 27. By starting the first servo motor 2 and using the rotation of the first bidirectional threaded rod 17, the two threaded sleeve blocks 6 can slide towards or away from each other inside the groove, so as to adjust the distance between the two moving blocks 7, and thus adjust and clamp the two sides of welding materials of different sizes. When the distance between the two moving blocks 7 is adjusted, one first rotating shaft 10 on each of the two moving blocks 7 will slide on the cross plug 11. So that after the distance between the two moving blocks 7 is adjusted, by starting the third servo motor 14 and using the rotation of the two straight gears 13, the rotation of the cross plug 11 is driven, and thus by the rotation of the two first rotating shafts 10, the two second bevel gears 25 are driven to rotate, so that the two first bevel gears 24 rotate, so that the two second bidirectional threaded rods 26 can respectively drive the total four threaded blocks 27 inside the two chutes to slide, so that the distance between the four clamping members 8 can be adjusted synchronously, and thus the other two sides of the welding material are clamped. And the displacement of the welding material after being clamped is avoided by the four clamping members 8, so that the spot welding assembly 29 can conveniently weld the welding material, and the electric welding work of welding materials of different sizes can be adapted.

[0023] To facilitate the smooth movement of the two threaded sleeve blocks 6 inside the groove, the two threaded sleeve blocks 6 are both slidably arranged inside the groove, and both sides of the two threaded sleeve blocks 6 are respectively in contact with the two sides of the inner cavity of the groove.

[0024] During spot welding, to facilitate the clamping of the welding material and welding safety, the welding material is generally in a suspended state. And to facilitate the support of the spot welding area, by turning on the second servo motor 3, the rotation of the screw 18 drives a square block 20 to slide inside a square groove, and the other square block 20 slides on the first plug post 19 through the connection of the fixed block 21. When the electronic telescopic rod 22 at the top of the fixed block 21 expands and contracts, the support plate 23 can be driven to lift by the sliding of the two second plug posts 30 inside the two square blocks 20 respectively, so as to adjust the horizontal and vertical positions of the support plate 23, thereby supporting different spot welding positions and improving the stability of the spot welding work.

[0025] To limit the sliding positions of the two moving blocks 7, both ends of the cross plug-in 11 are inserted outside the two equipment boxes 9, and limit blocks 28 are fixedly connected to both ends of the cross plug-in 11.

[0026] To better utilize the support plate 23 to support the spot welding position, the length of the support plate 23 matches the length of the moving block 7, and the support plate 23 is slidably arranged between the two moving blocks 7.

[0027] Furthermore, to better clamp the welding material and improve the clamping stability, the clamping member 8 is in an L shape, and an L-shaped groove is formed on one side of the clamping member 8. The number of the clamping members 8 is four, and the bottoms of the four clamping members 8 are respectively in contact with the tops of the two moving blocks 7.

[0028] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0029] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0030] In addition, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, it should also be regarded as the content disclosed by the present invention.

Claims

1. The spot welding device for the fuel tank filler neck crossbeam, comprising a workbench (1), is characterized in that: On both sides of the workbench (1), a connecting block (16) and an L-shaped side plate (4) are fixedly connected respectively. At the top of the L-shaped side plate (4), a top plate (5) is fixedly connected. At the bottom of the top plate (5), a spot welding assembly (29) is arranged. At the top of the connecting block (16), a support block (15) is fixedly inserted. On one side of the support block (15), a third servo motor (14) is fixedly connected. The output shaft of the third servo motor (14) is connected to a second rotating shaft (12). At the top end of the support block (15), the other second rotating shaft (12) is rotatably connected through a bearing. At one end of each of the two second rotating shafts (12), a straight gear (13) is fixedly sleeved. The two straight gears (13) are meshed with each other. Inside the top second rotating shaft (12), a cross plug-in (11) is fixedly inserted. A groove is formed at the top of the workbench (1). On one side of the workbench (1), a first servo motor (2) is fixedly connected. The output shaft of the first servo motor (2) is fixedly connected to a first bidirectional threaded rod (17). At both ends of the first bidirectional threaded rod (17), threaded sleeve blocks (6) are threadedly sleeved. At the top of each of the two threaded sleeve blocks (6), a moving block (7) is fixedly connected. At the top of each of the two moving blocks (7), a sliding groove is formed. On one side of each of the two moving blocks (7), an equipment box (9) is fixedly connected. On one side of the inner cavity of the equipment box (9), a first rotating shaft (10) is rotatably connected through a gear. At one end of the first rotating shaft (10) inside the equipment box (9), a square block (20) is fixedly sleeved. On the other side of the inner cavity of the equipment box (9), a second bidirectional threaded rod (26) is rotatably connected through a bearing. At the other end of the second bidirectional threaded rod (26) inside the inner cavity of the equipment box (9), a first bevel gear (24) is fixedly connected. The first bevel gear (24) is meshed with a second bevel gear (25). At both ends of the second bidirectional threaded rod (26) inside the sliding groove, threaded blocks (27) are threadedly sleeved. At the top of each of the two threaded blocks (27), a clamping member (8) is fixedly connected.

2. The fuel tank filler neck cross member spot welding device according to claim 1, wherein: Both of the two threaded sleeve blocks (6) are slidably arranged inside the groove, and both sides of the two threaded sleeve blocks (6) are respectively in contact with both sides of the inner cavity of the groove.

3. The fuel tank filler neck spot welding device according to claim 1, characterized in that: The top of the workbench (1) is provided with two symmetrical square grooves, and one side of the workbench (1) is fixedly connected with a second servo motor (3). The output shaft of the second servo motor (3) is fixedly connected with a screw rod (18) inside one square groove, and a first insertion post (19) is fixedly connected inside the other square groove. The outer surface of the screw rod (18) is threadedly sleeved with a square block (20), and the outer surface of the first insertion post (19) is slidably sleeved with another square block (20). The tops of the two square blocks (20) are both slidably inserted with second insertion posts (30). The tops of the two second insertion posts (30) are jointly fixedly connected with a support plate (23). A fixing block (21) is fixedly connected between the two square blocks (20). The top of the fixing block (21) is fixedly connected with an electronic telescopic rod (22), and the top of the electronic telescopic rod (22) is fixedly connected to the bottom of the support plate (23).

4. The fuel tank filler neck spot welding device according to claim 1, characterized in that: Both ends of the cross plug-in (11) are respectively inserted outside the two equipment boxes (9), and limiting blocks (28) are fixedly connected to both ends of the cross plug-in (11).

5. The fuel tank filler neck cross member spot welding device according to claim 3, characterized in that: The length of the support plate (23) matches the length of the moving block (7), and the support plate (23) is slidably arranged between the two moving blocks (7).

6. The fuel tank filler neck spot welding device according to claim 1, wherein: The clamping member (8) is in an L shape, and an L-shaped groove is provided on one side of the clamping member (8). The number of the clamping members (8) is four, and the bottoms of the four clamping members (8) are respectively in contact with the tops of the two moving blocks (7).

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