A body-in-white resistance welding device with positioning function

Abstract

The utility model relates to the technical field of body welding, and discloses a body-in-white resistance welding device with a positioning function, comprising a slide rail, a lifting seat, and a welding seat. A slide groove is provided in the middle of the rear end of the slide rail, a pulley is connected in a rolling manner in the slide groove, a wheel axle is fixedly connected in the middle of the rear end of the pulley, front and rear ends of the outer side of the wheel axle are rotatably connected with bearing seats, a mobile platform is fixedly connected to the top of the bearing seat, positioning plates are fixedly connected to the left and right sides of the top of the mobile platform, supports are evenly distributed in the middle of the top of the mobile platform, and a highly telescopic outer column is fixedly connected to the middle of the top of the lifting seat. In the utility model, the front and rear parts of the mobile platform are fixed on the platform using rubber positioning plates, and the chassis of the vehicle body is stabilized by pneumatic adsorption rubber discs for positioning and fixing to prevent damage to the vehicle body. During welding, high-pressure air is used to blow away debris, oil stains, etc. on the welding surface to ensure the welding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body welding, in particular to a vehicle body in white resistance welding device with a positioning function. Background Art

[0002] The body in white refers to the body of a car that has been welded to its parts in a factory workshop but has not yet been painted. When the body is painted, interior and exterior trims and electronic and electrical systems are added to the body, and then the chassis system and powertrain are added to form a complete vehicle. In the field of automobile production, resistance welding is generally used for the welding of the body in white. Resistance welding refers to a method of using the resistance heat effect generated by the flow of current through the contact surface and adjacent areas of the workpiece to heat it to a molten or plastic state, and pressurizing it for welding.

[0003] In general car body manufacturing, sheet metal stamping is first used to form the three main components of the top cover, side panels, and bottom panel. The components are then welded together through spot welding to form a preliminary car body. In this process, the components on the car body need to be positioned and fixed. In order to ensure the quality of products of the same batch and the same model, the positioning of the car body components is crucial. Since resistance welding does not require filler metal during welding, it has high production efficiency and small welding deformation. It has a very high usage rate in car body production and is easy to realize automated production.

[0004] Automobile welding is a production process with large batches and high labor intensity. With the development of social science and technology, the automobile production model has changed from the previous manual operation to the automated production method. In the general body welding process, the factory workshop uses fixed welding fixtures for welding. The fixture positioning generally adopts rigid positioning, which can easily cause scratches and damage to the body surface, affecting the automobile welding efficiency and increasing costs. In addition, during resistance welding, it is necessary to ensure the cleanliness of the welding surface, but during the transportation and handling in the workshop, it is very easy to adhere to debris, affecting the welding effect. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a body-in-white resistance welding device with a positioning function, aiming to improve the problems of repeated handling and positioning of the body during body welding in the prior art, image production efficiency and cleaning of debris on the welding surface.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a body-in-white resistance welding device with a positioning function, comprising a slide rail, a lifting seat, and a welding seat, a slide groove is provided in the middle of the rear end of the slide rail, a pulley is connected in a rolling manner in the slide groove, a wheel axle is fixedly connected in the middle of the rear end of the pulley, a bearing seat is rotatably connected at the front and rear ends of the outer side of the wheel axle, a moving platform is fixedly connected to the top of the bearing seat, positioning plates are fixedly connected to the left and right sides of the top of the moving platform, supports are evenly distributed in the middle of the top of the moving platform, and a height extension is fixedly connected to the middle of the top of the lifting seat. The telescopic outer column is slidably connected with the telescopic inner rod in the middle of the top of the telescopic outer column, and the top of the telescopic inner rod is fixedly connected with the telescopic outer column in length, and the middle of the front end of the telescopic outer column is slidably connected with the telescopic inner rod, and the middle of the front end of the telescopic inner rod is fixedly connected with an air cushion seat, and the middle of the top of the air cushion seat is fixedly connected with a suction cup air cushion, and the front of the top of the welding seat is fixedly connected with an air pipe, one end of the air pipe is fixedly connected with a three-way connecting pipe, and the upper and lower ends of the three-way connecting pipe are fixedly connected with high-pressure air pipes, and the middle of the front end of the high-pressure air pipe is fixedly connected with a high-pressure nozzle.

[0007] As a further description of the above technical solution:

[0008] The front end of the slide rail is evenly distributed with supporting legs.

[0009] As a further description of the above technical solution:

[0010] The middle part and the left and right sides of the bottom end of the slide rail are fixedly connected with cross braces.

[0011] As a further description of the above technical solution:

[0012] A vehicle body chassis is placed on the top of the support.

[0013] As a further description of the above technical solution:

[0014] An angle rotating disk is fixedly connected to the middle of the top of the welding seat, a No. 1 support column is fixedly connected to the middle of the top of the angle rotating disk, a No. 1 rotating seat is fixedly connected to the middle of the top of the No. 1 support column, a No. 1 rotating seat is rotatably connected to a No. 1 rotating shaft in the middle of the inner side of the No. 1 rotating seat, a No. 1 rotating shaft is fixedly connected to the middle of the top of the No. 1 pillar, and an angle disk is fixedly connected to the middle of the top of the No. 1 pillar.

[0015] As a further description of the above technical solution:

[0016] The top of the No. 1 angle plate is fixedly connected to the No. 2 support column, the middle of the top of the No. 2 support column is fixedly connected to the No. 2 rotating seat, the middle of the inner side of the No. 2 rotating seat is rotatably connected to the No. 2 rotating shaft, the middle of the top of the No. 2 rotating shaft is fixedly connected to the No. 2 pillar, and the middle of the top of the No. 2 pillar is fixedly connected to the No. 2 angle plate.

[0017] As a further description of the above technical solution:

[0018] The top end of the No. 2 angle plate is fixedly connected to a No. 3 support column, and the middle part of the front end of the No. 3 support column is fixedly connected to a resistance welding frame.

[0019] As a further description of the above technical solution:

[0020] The middle parts of the upper and lower ends of the resistance welding frame are fixedly connected with welding rods.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the chassis of the vehicle body is placed on the mobile platform of the assembly line, and rubber positioning plates are used at the front and rear parts of the mobile platform to position the front and rear parts of the chassis of the vehicle body on the platform, and the bottom plate of the vehicle body is stabilized by pneumatic adsorption rubber discs for positioning and fixing to prevent damage to the vehicle body.

[0023] 2. In the utility model, the high-pressure air nozzle is fixed on the resistance welding motor rod. During welding, after the high-pressure air passes through the filter, the high-pressure air is used to blow away the debris, oil stains, etc. near the desired welding point from the welding surface to ensure the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a body-in-white resistance welding device with a positioning function proposed by the utility model;

[0025] Figure 2 This is a schematic structural diagram of a resistance welding device for a body-in-white resistance welding device with a positioning function proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a lifting device of a body-in-white resistance welding device with a positioning function proposed by the utility model;

[0027] Figure 4 This is a structural schematic diagram of a mobile positioning platform of a body-in-white resistance welding device with a positioning function proposed by the utility model;

[0028] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Slide rail; 2. Outrigger; 3. Cross brace; 4. Slide groove; 5. Pulley; 6. Axle; 7. Bearing seat; 8. Mobile platform; 9. Positioning plate; 10. Support; 11. Lifting seat; 12. Height telescopic outer column; 13. Height telescopic inner rod; 14. Length telescopic outer column; 15. Length telescopic inner rod; 16. Air cushion seat; 17. Suction cup air cushion; 18. Welding seat; 19. Angle rotating disk; 20. No. 1 support column; 21. Rotating seat No. 1; 22. Rotating axis No. 1; 23. Pillar No. 1; 24. Angle plate No. 1; 25. Support column No. 2; 26. Rotating seat No. 2; 27. Rotating axis No. 2; 28. Pillar No. 2; 29. ​​Angle plate No. 2; 30. Support column No. 3; 31. High-pressure air pipe; 32. Air supply pipe; 33. Three-way connecting pipe; 34. Welding rod; 35. High-pressure nozzle; 36. Vehicle chassis; 37. Resistance welding frame. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 and Figure 3-Figure 4 The utility model provides an embodiment: a body-in-white resistance welding device with a positioning function, comprising a slide rail 1, a lifting seat 11, and a welding seat 18. A slide groove 4 is provided in the middle of the rear end of the slide rail 1, a pulley 5 is connected in a rolling manner in the slide groove 4, a wheel axle 6 is fixedly connected in the middle of the rear end of the pulley 5, and a bearing seat 7 is rotatably connected at the front and rear ends of the outer side of the wheel axle 6, a mobile platform 8 is fixedly connected to the top of the bearing seat 7, and positioning plates 9 are fixedly connected to the left and right sides of the top of the mobile platform 8, and supports 10 are evenly distributed in the middle of the top of the mobile platform 8, and a height telescopic outer column 12 is fixedly connected to the middle of the top of the lifting seat 11, and the middle of the top of the height telescopic outer column 12 slides It is connected with a height-telescopic inner rod 13, the top of which is fixedly connected with a length-telescopic outer column 14, the middle of the front end of the length-telescopic outer column 14 is slidably connected with a length-telescopic inner rod 15, the middle of the front end of the length-telescopic inner rod 15 is fixedly connected with an air cushion seat 16, the middle of the top of the air cushion seat 16 is fixedly connected with a suction cup air cushion 17, and the mobile platform 8 uses a positioning plate 9 and a support 10 made of rubber, which can well complete the positioning and support of the vehicle body chassis 36, while reducing the damage to the vehicle body caused by the rigid positioning, and in order to ensure the working space during welding, the vehicle body chassis 36 is lifted by the suction cup air cushion 17 to increase the welding working surface at the bottom.

[0033] Reference Figure 2 and Figure 5An air pipe 32 is fixedly connected to the front of the top of the welding seat 18, one end of the air pipe 32 is fixedly connected to a three-way connecting pipe 33, the upper and lower ends of the three-way connecting pipe 33 are fixedly connected to a high-pressure air pipe 31, and a high-pressure nozzle 35 is fixedly connected to the middle of the front end of the high-pressure air pipe 31. High-pressure air is used through the high-pressure nozzle 35 to accurately clean the debris and oil stains on the welding surface of the welding point during electric welding.

[0034] Reference Figure 1-Figure 2 , the front end of the slide rail 1 is evenly distributed with supporting legs 2, the middle part of the bottom end and the left and right sides of the slide rail 1 are fixedly connected with cross braces 3, the top of the support 10 is placed with a vehicle chassis 36, the middle part of the top of the welding seat 18 is fixedly connected with an angle rotating disk 19, the middle part of the top of the angle rotating disk 19 is fixedly connected with a No. 1 support column 20, the middle part of the top of the No. 1 support column 20 is fixedly connected with a No. 1 rotating seat 21, the middle part of the inner side of the No. 1 rotating seat 21 is rotatably connected with a No. 1 rotating shaft 22, the middle part of the top of the No. 1 rotating shaft 22 is fixedly connected with a No. 1 pillar 23, the middle part of the top of the No. 1 pillar 23 is fixedly connected with an No. 1 angle disk 24, the top of the No. 1 angle disk 24 is fixedly connected with a No. 2 support column 25, and the No. 2 A No. 2 rotating seat 26 is fixedly connected to the middle part of the top of the support column 25, and a No. 2 rotating shaft 27 is rotatably connected to the middle part of the inner side of the No. 2 rotating seat 26, and a No. 2 pillar 28 is fixedly connected to the middle part of the top of the No. 2 pillar 28, and a No. 2 angle disk 29 is fixedly connected to the middle part of the top of the No. 2 angle disk 29, and a No. 3 support column 30 is fixedly connected to the middle part of the front end of the No. 3 support column 30, and a resistance welding frame 37 is fixedly connected to the middle parts of the upper and lower ends of the resistance welding frame 37. The welding operation is performed by an industrial welding robot with multiple degrees of freedom to perform fixed-point welding, which can reduce the labor intensity of manual welding and at the same time ensure the welding effect of the same batch of car bodies.

[0035] Working principle: workers hoist the vehicle chassis 36 onto the rubber support 10 on the mobile platform 8, and adjust the position of the rubber positioning plate 9 according to the body length of the vehicle chassis 36, so that the vehicle chassis 36 can be fixed on the mobile platform 8, and then the pulley 5 at the bottom of the mobile platform 8 moves in the slide groove 4 on the slide rail 1. When it moves to the welding work area, the mobile platform 8 stops moving, and the lifting device pushes out the air cushion seat 16 through pneumatic pressure, and releases the suction cup air cushion 17 to the vehicle chassis 36, lifting the vehicle chassis 36 to increase the welding working space of the welding robot. Then, the welding robot adjusts the position of the resistance welding frame 37 with multiple degrees of freedom according to the required welding voltage. When the welding rod 34 reaches the welding surface, the high-pressure air pump delivers high-pressure gas to the air pipe 32, and sprays high-pressure airflow through the high-pressure nozzle 35 on the plastic high-pressure air pipe 31 to blow away the debris and oil stains on the welding surface to ensure the resistance welding effect.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A body-in-white resistance welding device with a positioning function, comprising a slide rail (1), a lifting seat (11), and a welding seat (18), characterized in that: A slide groove (4) is provided in the middle of the rear end of the slide rail (1), a pulley (5) is rotatably connected in the slide groove (4), a wheel axle (6) is fixedly connected in the middle of the rear end of the pulley (5), front and rear ends of the outer side of the wheel axle (6) are rotatably connected with a bearing seat (7), a mobile platform (8) is fixedly connected at the top of the bearing seat (7), positioning plates (9) are fixedly connected at the left and right sides of the top of the mobile platform (8), supports (10) are evenly distributed in the middle of the top of the mobile platform (8), a height telescopic outer column (12) is fixedly connected at the middle of the top of the lifting seat (11), a height telescopic inner rod (13) is slidably connected at the middle of the top of the height telescopic outer column (12), and the The top of the telescopic inner rod (13) is fixedly connected to a telescopic outer column (14), the middle of the front end of the telescopic outer column (14) is slidably connected to a telescopic inner rod (15), the middle of the front end of the telescopic inner rod (15) is fixedly connected to an air cushion seat (16), the middle of the top end of the air cushion seat (16) is fixedly connected to a suction cup air cushion (17), the front of the top end of the welding seat (18) is fixedly connected to an air pipe (32), one end of the air pipe (32) is fixedly connected to a three-way connecting pipe (33), the upper and lower ends of the three-way connecting pipe (33) are fixedly connected to a high-pressure air pipe (31), and the middle of the front end of the high-pressure air pipe (31) is fixedly connected to a high-pressure nozzle (35).

2. The body-in-white resistance welding device with positioning function according to claim 1, characterized in that: The front end of the slide rail (1) is evenly distributed with supporting legs (2).

3. The body-in-white resistance welding device with positioning function according to claim 1, characterized in that: The middle part of the bottom end and the left and right sides of the slide rail (1) are fixedly connected with a cross brace (3).

4. The body-in-white resistance welding device with positioning function according to claim 1, characterized in that: A vehicle body chassis (36) is placed on the top of the support (10).

5. The body-in-white resistance welding device with positioning function according to claim 1, characterized in that: The welding seat (18) is fixedly connected to an angle rotating disk (19) at the middle of the top end, the angle rotating disk (19) is fixedly connected to a No. 1 support column (20) at the middle of the top end, the No. 1 support column (20) is fixedly connected to a No. 1 rotating seat (21) at the middle of the top end, the No. 1 rotating seat (21) is rotatably connected to a No. 1 rotating shaft (22) at the middle of the inner side, the No. 1 rotating shaft (22) is fixedly connected to a No. 1 pillar (23) at the middle of the top end, and the No. 1 pillar (23) is fixedly connected to an angle disk (24) at the middle of the top end.

6. The body-in-white resistance welding device with positioning function according to claim 5, characterized in that: The top of the No. 1 angle disc (24) is fixedly connected to a No. 2 support column (25), the middle of the top of the No. 2 support column (25) is fixedly connected to a No. 2 rotating seat (26), the middle of the inner side of the No. 2 rotating seat (26) is rotatably connected to a No. 2 rotating shaft (27), the middle of the top of the No. 2 rotating shaft (27) is fixedly connected to a No. 2 support column (28), and the middle of the top of the No. 2 support column (28) is fixedly connected to a No. 2 angle disc (29).

7. The body-in-white resistance welding device with positioning function according to claim 6, characterized in that: The top end of the No. 2 angle plate (29) is fixedly connected to a No. 3 support column (30), and the middle portion of the front end of the No. 3 support column (30) is fixedly connected to a resistance welding frame (37).

8. The body-in-white resistance welding device with positioning function according to claim 7, characterized in that: The middle parts of the upper and lower ends of the resistance welding frame (37) are fixedly connected with welding rods (34).

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