Ground wire bonding device of welding machine

The welding machine grounding device, which combines an A-type clamp and a strong magnetic chuck, solves the problems of high contact resistance and poor adaptability of traditional devices, and achieves fast and non-destructive grounding connection. It is suitable for various workpiece materials and improves welding quality and efficiency.

CN224249127UActive Publication Date: 2026-05-15XINXING DUCTILE IRON PIPES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXING DUCTILE IRON PIPES CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional welding machine grounding devices suffer from high contact resistance, poor adaptability, and cumbersome installation, which affect welding quality and operational efficiency.

Method used

It adopts a combination design of A-clamp, strong magnetic chuck and copper wire lug, combined with serrated contact surface and spring structure, to provide a variety of grounding methods to adapt to different workpiece materials, and utilizes the clamping characteristics of strong magnetic chuck and A-clamp.

Benefits of technology

It enables rapid and non-destructive grounding connection, applicable to ferrous and non-ferromagnetic workpieces, improving welding quality and operational efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224249127U_ABST
    Figure CN224249127U_ABST
Patent Text Reader

Abstract

The utility model discloses a welding machine ground wire bonding device, which belongs to the technical field of welding equipment and comprises an A-shaped clamp, a strong magnetic sucker arranged on one side of the A-shaped clamp and a copper wire lug. The A-shaped clamp comprises two symmetrically arranged long arms and two supporting arms arranged between the long arms; mounting holes are formed in the end points of the two supporting arms and are rotationally connected through a hinge; the strong magnetic sucker is connected to the outer side of one long arm of the A-shaped clamp through the connecting screw rod; and the copper wire lug is hung on the connecting screw rod. The ground wire lap joint device can carry out ground wire lap joint quickly and losslessly, is suitable for iron and non-ferromagnetic workpieces, and facilitates electric welding operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a grounding device for a welding machine. Background Technology

[0002] In welding operations, the welding machine's ground wire needs to form a stable conductive loop with the workpiece through a grounding device. Its performance directly affects welding quality, equipment stability, and operational safety. Traditional grounding devices typically use bolt-fastened clamps or single-spring clamps to fix the ground wire to the workpiece surface through mechanical clamping force. However, in actual industrial scenarios, such devices have the following significant problems:

[0003] (1) High contact resistance: Insufficient contact between the clamping surface and the workpiece results in poor conductivity and affects welding quality;

[0004] (2) Poor adaptability: It is difficult to adapt to workpieces with different shapes, sizes or surface conditions (such as curved surfaces, large flat parts);

[0005] (3) Installation is cumbersome: It requires manual adjustment of bolts or multiple clamping, which is inefficient.

[0006] Therefore, there is an urgent need to develop a welding machine grounding device that combines high conductivity, rapid installation, and broad applicability to solve the industry's pain points. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a welding machine grounding device that can quickly and non-destructively connect the ground wire, which is suitable for ferrous and non-ferromagnetic workpieces and facilitates electric welding operations.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A welding machine grounding device includes an A-type clamp, a strong magnetic chuck disposed on one side of the A-type clamp, and a copper wire lug;

[0010] The A-type clamp includes two symmetrically arranged long arms and two support arms located in the middle of the long arms; each of the two support arms has a mounting hole at its end point, and the mounting holes are connected by a hinge.

[0011] The strong magnetic chuck is connected to the outer side of one long arm of the A-type clamp via a connecting screw;

[0012] The copper wire lugs are mounted on the connecting screw.

[0013] A further improvement of this utility model is that the contact surface at the top of the long arm is serrated, and the contact surfaces of the two long arms interlock.

[0014] A further improvement of this utility model is that the upper parts of the support arms of the two long arms are connected by wires.

[0015] A further improvement of this utility model is that two springs extend from the mounting holes of the support arm and are respectively locked in the lower part of the support arm of the two long arms.

[0016] A further improvement of this utility model is that the length of the copper wire lug is 30mm to 50mm.

[0017] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0018] This invention enables the welding machine ground wire to be clamped to a copper wire lug for conduction. The grounding method can be selected according to the workpiece material and working conditions. It prioritizes the use of a strong magnetic chuck for convenient and quick grounding. For non-ferromagnetic workpieces such as stainless steel, an A-type clamp is used for grounding. This allows for quick and non-destructive grounding connection. It is suitable for both ferrous and non-ferromagnetic workpieces and facilitates electric welding operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the welding machine grounding device in this utility model;

[0020] The components include: 1. Type A clip, 2. Copper wire lug, 3. Strong magnetic chuck, 4. Connecting screw, 5. Wire, and 6. Spring. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] like Figure 1 As shown, a welding machine grounding device includes an A-type clamp 1, a strong magnetic chuck 3, and a copper wire lug 2;

[0024] The A-type clamp 1 includes two symmetrically arranged long arms and two support arms located between the long arms; each support arm has a mounting hole at its end point and is connected by a hinge, allowing the long arms to open and close around the hinge 5 inside the mounting hole of the support arm; the contact surface at the top of the long arm is serrated, and the contact surfaces of the two long arms interlock; the upper parts of the support arms of the two long arms are connected by a wire 5; two springs 6 extend from the mounting holes of the support arms and are respectively locked in the lower parts of the support arms of the two long arms. The springs 6 provide the necessary elasticity to ensure that the long arms remain closed when clamping the workpiece and help the long arms open automatically when releasing the workpiece;

[0025] The strong magnetic chuck 3 is connected to the outside of a long arm of the A-type clamp 1 via a connecting screw 4, and is at the same horizontal height as the contact surface of the long arm.

[0026] The copper wire lug 2 is hung on the connecting screw 4, and the length of the copper wire lug 2 is 30mm to 50mm.

[0027] How to use:

[0028] Clamp the welding machine ground wire to copper wire lug 2 for conduction. Select the grounding method according to the workpiece material and working conditions. Prioritize the use of strong magnetic chuck 3 for convenient and quick grounding. For non-ferromagnetic workpieces such as stainless steel, use type A clamp 1 for grounding.

[0029] In summary, this utility model has a simple structure, enables quick and non-destructive grounding connections, is suitable for ferrous and non-ferromagnetic workpieces, and facilitates electric welding operations.

Claims

1. A grounding device for a welding machine, characterized in that: Includes an A-type clip (1), a strong magnetic chuck (3) disposed on one side of the A-type clip (1), and a copper wire lug (2); The type A clamp (1) includes two symmetrically arranged long arms and two support arms arranged in the middle of the long arms; mounting holes are provided at the ends of the two support arms, and the mounting holes are connected by hinges. The strong magnetic chuck (3) is connected to the outer side of one long arm of the A-type clamp (1) via a connecting screw (4); The copper wire lug (2) is hung on the connecting screw (4).

2. The welding machine grounding device according to claim 1, characterized in that: The contact surface at the tip of the long arm is serrated, and the contact surfaces of the two long arms interlock.

3. The welding machine grounding device according to claim 1, characterized in that: The upper part of the support arm of the two long arms is connected by a wire (5).

4. The welding machine grounding device according to claim 1, characterized in that: Two springs (6) are extended from the mounting holes of the support arm and respectively locked in the lower part of the support arm of the two long arms.

5. The welding machine grounding device according to claim 1, characterized in that: The length of the copper wire lug (2) is 30mm to 50mm.