Motorcycle power hanger mounting seat and nut spot welding equipment

Abstract

The utility model belongs to spot welding equipment technical field, especially point to a kind of motorcycle power hanger mounting seat and nut spot welding equipment;Upper mounting seat, lower mounting seat are provided on the side of base, upper electrode is provided on upper mounting seat by driving mechanism, lower electrode mounting seat is provided on lower mounting seat, lower electrode is provided on lower electrode mounting seat, the working end of lower electrode is suspended, opening is provided on working end, opening is provided along front-back direction, linear guide mechanism extending towards front is also provided on lower mounting seat, linear guide mechanism is provided along front-back direction, workpiece placing table is provided on linear guide mechanism, positioning pin is provided on workpiece placing table, the axis of positioning pin is provided along up-down direction, and positioning pin can slide into opening and be located directly below upper electrode with power hanger mounting seat;The utility model takes and places workpiece conveniently, and operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of spot welding equipment technology, specifically referring to a spot welding device for a motorcycle power hanger mounting base and nut. Background Technology

[0002] Currently, most spot welding operations for motorcycle power hanger mounting brackets and nuts in the industry utilize traditional fixed electrode spot welding equipment. In this type of equipment, both the upper and lower electrodes are fixedly mounted on the base, forming a fixed welding work area between them. During operation, the worker holds the workpiece to be welded (i.e., the power hanger mounting bracket) and inserts it into the narrow gap between the upper and lower electrodes. After aligning it with the welding position, the drive mechanism pushes the upper electrode down, pressing it against the workpiece together with the lower electrode, and then applies electricity to complete the spot welding.

[0003] However, this traditional spot welding method has obvious shortcomings in actual production: the gap between the upper and lower electrodes is limited, and operators need to force the workpiece between the electrodes for welding. It is inconvenient to pick up and put down the workpiece, which seriously affects the efficiency of mass production. Utility Model Content

[0004] This utility model addresses the aforementioned shortcomings in the existing technology by providing a spot welding device for a motorcycle power hanger mounting base and a nut, aiming to solve the technical problems of inconvenient workpiece handling and low operating efficiency in existing equipment.

[0005] This utility model is implemented as follows:

[0006] A spot welding device for a motorcycle power hanger mounting base and nut includes a base. An upper mounting base and a lower mounting base are arranged at an interval on one side of the base. An upper electrode is mounted on the upper mounting base via a drive mechanism, and the upper electrode is driven to move up and down by the drive mechanism. A lower electrode mounting base is provided on the lower mounting base, and a lower electrode is mounted on the lower electrode mounting base. The upper and lower electrodes are arranged vertically and correspondingly.

[0007] The working end of the lower electrode is suspended and has an opening. The opening is arranged in the front-to-back direction. A linear guide mechanism extending forward is also provided on the lower mounting base. The linear guide mechanism is arranged in the front-to-back direction. A workpiece placement platform is provided on the linear guide mechanism. A positioning pin is provided on the workpiece placement platform. The axis of the positioning pin is arranged in the up-down direction. The positioning pin can slide with the power hanger mounting base into the opening and is located directly below the upper electrode.

[0008] In the above-mentioned motorcycle power hanger mounting base and nut spot welding equipment, the linear guide mechanism includes a guide rail and a slider slidably disposed on the guide rail, and the workpiece placement table is fixedly connected to the slider.

[0009] In the above-mentioned motorcycle power hanger mounting base and nut spot welding equipment, the lower mounting base is provided with a guide rail mounting base. The upper surface of the guide rail mounting base is provided with two guide rail mounting grooves that are spaced downwards and parallel to each other. One end of the guide rail is set in the guide rail mounting groove, and the lower electrode mounting base is fixed to the upper surface of the guide rail mounting base by fasteners to limit one end of the guide rail in the guide rail mounting groove. The other end of the guide rail extends forward and is located below the working end of the lower electrode.

[0010] In the above-mentioned motorcycle power hanger mounting base and nut spot welding equipment, the upper surface of the lower electrode mounting base is provided with a lower electrode mounting groove facing downward. The lower electrode is set in the lower electrode mounting groove and fixed by the upper pressure plate. Both ends of the lower electrode extend out of the lower electrode mounting base. Its working end is provided with the opening and the other end is connected to a flexible conductive bundle. The other end of the flexible conductive bundle is connected to the first output end of the welding transformer.

[0011] In the above-mentioned motorcycle power hanger mounting base and nut spot welding equipment, the lower end of the positioning pin extends beyond the workpiece placement table, and a limiting block is provided on the front side of the lower mounting base. The limiting block is provided with a limiting groove for abutting against the lower end of the positioning pin.

[0012] In the above-mentioned motorcycle power hanger mounting base and nut spot welding equipment, the drive mechanism includes a hydraulic cylinder or a pneumatic cylinder. The telescopic part of the hydraulic cylinder or pneumatic cylinder is arranged in the vertical direction. The telescopic part is connected to the upper electrode mounting base. The upper electrode is arranged in the vertical direction and fixed on the upper electrode mounting base. A copper sheet laminate flexible connector is connected to the upper electrode mounting base. The other end of the copper sheet laminate flexible connector is connected to the second output terminal of the welding transformer.

[0013] The outstanding advantages of this utility model compared to the prior art are:

[0014] 1. This utility model achieves workpiece loading and unloading outside the equipment by setting an outwardly extending linear guide mechanism on the lower mounting base and slidingly assembling the workpiece placement table on it. Operators can safely and easily position and clamp the workpiece in an open space away from the welding electrodes, and then smoothly push it to the processing position along the guide rail. This design completely changes the traditional fixed electrode structure's operating mode where "workpieces must be inserted through narrow electrode gaps," significantly reducing operational difficulty, effectively alleviating the labor intensity of operators, and significantly improving the cycle speed of loading and unloading, thereby improving the overall efficiency of batch production.

[0015] 2. The open material handling space of this utility model eliminates the need for operators' hands to enter the dangerous area between the upper and lower electrodes, fundamentally avoiding the risk of personal injury caused by misoperation or accidental equipment startup. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a partial schematic diagram of the present invention.

[0018] Figure 3 This is a schematic diagram showing the positioning pin of this utility model located inside the opening.

[0019] In the diagram: 1. Base; 2. Upper mounting base; 3. Lower mounting base; 4. Cylinder; 5. Upper electrode mounting base; 6. Upper electrode; 7. Copper sheet laminate flexible connection; 8. Lower electrode mounting base; 9. Lower electrode; 10. Opening; 11. Power hanger mounting base; 12. Positioning pin; 13. Upper pressure plate; 14. Flexible conductive bundle; 15. Guide rail; 16. Slider; 17. Guide rail mounting base; 18. Workpiece placement stage; 19. Limiting block; 20. Limiting groove; 21. Nut. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] This utility model provides a spot welding device for a motorcycle power hanger mounting base and nut, including a base 1. The base 1 serves as the supporting foundation for the entire device, ensuring the overall stability of the device during the welding process.

[0023] An upper mounting base 2 and a lower mounting base 3 are arranged vertically at intervals on one side of the base 1. A drive mechanism is provided on the upper mounting base 2. The drive mechanism is a hydraulic cylinder or a pneumatic cylinder 4, and its telescopic part is arranged vertically (i.e., vertically). The lower end of the telescopic part is fixedly connected to the upper electrode mounting base 5. The upper electrode 6 is arranged vertically and fixedly mounted on the upper electrode mounting base 5. When the drive mechanism is working, it drives the upper electrode mounting base 5 and the upper electrode 6 to move vertically up and down.

[0024] The upper electrode mounting base 5 is also connected to a copper sheet laminate flexible connector 7. One end of the copper sheet laminate flexible connector 7 is fixedly connected to the upper electrode mounting base 5, and the other end is electrically connected to the second output terminal of the welding transformer. The copper sheet laminate flexible connector 7 is made of multiple layers of thin copper sheets, which has excellent conductivity and a certain degree of flexibility, and can adapt to the up and down movement of the upper electrode mounting base 5 to ensure the stability of current transmission.

[0025] The lower mounting base 3 of this utility model is provided with a lower electrode mounting base 8, and a lower electrode 9 is fixedly mounted on the lower electrode mounting base 8. The working end of the lower electrode 9 extends horizontally outward and is suspended in the air. An opening 10 is provided at the working end in the front-to-back direction. The width of the opening 10 is slightly larger than the diameter of the positioning pin 12 that passes through the workpiece to be welded (power hanger mounting base 11), and the depth of the opening 10 (the dimension in the front-to-back direction) must be sufficient to allow the positioning pin 12 to be directly opposite the upper electrode 6.

[0026] Specifically, the upper surface of the lower electrode mounting base 8 has a downward-facing lower electrode mounting groove. The lower electrode 9 is horizontally positioned within the lower electrode mounting groove and is pressed and fixed by the upper pressure plate 13. Both ends of the lower electrode 9 extend beyond the lower electrode mounting base 8; its front end is the working end, and its rear end is connected to a flexible conductive bundle 14. The other end of the flexible conductive bundle 14 is connected to the first output terminal of the welding transformer. The flexible conductive bundle 14 can be made of copper braided tape or similar materials to ensure the reliability of current transmission.

[0027] In addition, a forward-extending linear guide mechanism is provided on the lower mounting base 3. This linear guide mechanism is arranged in the front-back direction and is used to guide the linear movement of the workpiece to be welded in the horizontal plane. In one embodiment, the linear guide mechanism includes a guide rail 15 and a slider 16 arranged on the guide rail 15. The guide rail 15 is arranged in the front-back direction and is installed as follows: a guide rail mounting seat 17 is fixed on the lower mounting base 3, and the upper surface of the guide rail mounting seat 17 is provided with two parallel guide rail mounting grooves spaced downwards. One end of the guide rail 15 is embedded in the guide rail mounting groove and is pressed and limited by the lower electrode mounting seat 8, and the other end of the guide rail 15 extends forward and is located below the working end of the lower electrode 9.

[0028] A workpiece placement stage 18 is fixed on the slider 16. A positioning pin 12 is provided on the workpiece placement stage 18, and its axis is set in the vertical direction.

[0029] It should be noted that the positioning pin 12 can be installed by setting a through hole on the workpiece placement table 18, with the positioning pin 12 passing through the through hole and fixedly connected by welding or other methods, or it can be tightened with a nut.

[0030] To ensure precise positioning during welding, this invention also includes a limiting mechanism. Specifically, the lower end of the positioning pin 12 extends beyond the lower surface of the workpiece placement table 18. A limiting block 19 is fixed to the front side of the lower mounting base 3, and a limiting groove 20 is formed on the limiting block 19 to limit the position. When the operator manually pushes the workpiece placement table 18 toward the opening 10 of the lower electrode 9, the lower end of the positioning pin 12 is inserted into and abuts against the limiting groove 20, indicating that the positioning pin 12 is directly below the upper electrode 6.

[0031] The working process of this utility model is as follows:

[0032] The operator places the power hanger mounting base 11 on the workpiece placement table 18, with the positioning pin 12 passing through two coaxial holes on the power hanger mounting base 11. The upper end of the positioning pin 12 passes through the upper surface of the power hanger mounting base 11, and the nut 21 to be welded is fitted onto the upper end of the positioning pin 12. The bottom surface of the nut 21 contacts the upper surface of the power hanger mounting base 11. Then, the workpiece placement table 18 is pushed, causing it to move along the guide rail 15 towards the opening 10 via the slider 16. When the lower end of the positioning pin 12 abuts against the limiting groove 20, the positioning pin 12 enters the opening 10 and is pushed into position directly below the upper electrode 6. The drive mechanism is activated, and the upper electrode 6 moves downward, engaging with the lower electrode 9 to press the workpiece together. Subsequently, the welding transformer is energized, generating a welding current between the upper electrode 6 and the lower electrode 9, completing the spot welding of the nut 21 to the workpiece. After welding is completed, the drive mechanism resets the upper electrode 6, and the operator pulls the workpiece onto the platform 18 outwards to remove the welded workpiece.

[0033] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A spot welding device for a motorcycle power hanger mounting base and nut, comprising a base (1), an upper mounting base (2) and a lower mounting base (3) arranged vertically at intervals on one side of the base (1), an upper electrode (6) being arranged on the upper mounting base (2) via a drive mechanism, the upper electrode (6) being driven to move vertically by the drive mechanism, a lower electrode mounting base (8) being arranged on the lower mounting base (3), and a lower electrode (9) being arranged on the lower electrode mounting base (8), the upper electrode (6) and the lower electrode (9) being arranged vertically correspondingly, characterized in that: The working end of the lower electrode (9) is suspended and has an opening (10) at the working end. The opening (10) is arranged in the front-back direction. A linear guide mechanism extending forward is also provided on the lower mounting base (3). The linear guide mechanism is arranged in the front-back direction. A workpiece placement table (18) is provided on the linear guide mechanism. A positioning pin (12) is provided on the workpiece placement table (18). The axis of the positioning pin (12) is arranged in the up-down direction. The positioning pin (12) can slide with the workpiece placement table (18) into the opening (10) and be located directly below the upper electrode (6).

2. The spot welding equipment for a motorcycle power hanger mounting base and nut according to claim 1, characterized in that: The linear guide mechanism includes a guide rail (15) and a slider (16) slidably disposed on the guide rail (15). The workpiece placement platform (18) is fixedly connected to the slider (16).

3. The spot welding equipment for a motorcycle power hanger mounting base and nut according to claim 2, characterized in that: The lower mounting base (3) is provided with a guide rail mounting base (17). The upper surface of the guide rail mounting base (17) is provided with two guide rail mounting slots that are spaced downwards and parallel to each other. One end of the guide rail (15) is set in the guide rail mounting slot. The lower electrode mounting base (8) is fixed to the upper surface of the guide rail mounting base (17) by fasteners, which limits one end of the guide rail (15) in the guide rail mounting slot. The other end of the guide rail (15) extends forward and is located below the working end of the lower electrode (9).

4. The spot welding equipment for a motorcycle power hanger mounting base and nut according to claim 3, characterized in that: The lower electrode mounting base (8) has a downward-facing lower electrode mounting groove on its upper surface. The lower electrode (9) is set in the lower electrode mounting groove and fixed by the upper pressure plate (13). Both ends of the lower electrode (9) extend out of the lower electrode mounting base (8). Its working end is provided with the opening (10), and the other end is connected to a flexible conductive bundle (14). The other end of the flexible conductive bundle (14) is connected to the first output end of the welding transformer.

5. A spot welding device for a motorcycle power hanger mounting base and nut according to any one of claims 1-4, characterized in that: The lower end of the positioning pin (12) extends beyond the workpiece placement table (18), and a limiting block (19) is provided on the front side of the lower mounting base (3). The limiting block (19) is provided with a limiting groove (20) for abutting against the lower end of the positioning pin (12).

6. The spot welding equipment for a motorcycle power hanger mounting base and nut according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder or a pneumatic cylinder (4). The telescopic part of the hydraulic cylinder or pneumatic cylinder (4) is arranged in the vertical direction. The telescopic part is connected to the upper electrode mounting seat (5). The upper electrode (6) is arranged in the vertical direction and fixed on the upper electrode mounting seat (5). A copper sheet laminate flexible connector (7) is connected to the upper electrode mounting seat (5). The other end of the copper sheet laminate flexible connector (7) is connected to the second output terminal of the welding transformer.

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