Welding ground wire clamp suitable for welding of various materials

Abstract

The utility model belongs to the technical field of electric welding clamps, and discloses a welding ground wire clamp suitable for welding various materials, which comprises a first clamp body, a second clamp body and a torsion spring, the first clamp body and the second clamp body are mutually hinged through a hinge shaft in the middle position, and the torsion spring is fixedly sleeved on the hinge shaft and used for applying clamping force. The clamping end of the first clamp body and the clamping end of the second clamp body are both in threaded connection with a multi-face rolling shaft, the axis of the multi-face rolling shaft of the first clamp body is parallel to the clamping face of the first clamp body, and the axis of the multi-face rolling shaft of the second clamp body is parallel to the clamping face of the second clamp body. Conductive sheets made of different materials are fixedly arranged on each multi-face rolling shaft in the circumferential direction, and the conductive sheets on the first clamping body correspond to the conductive sheets on the second clamping body to form actual clamping faces used for clamping welded objects. The device is simple in structure, convenient to use, low in cost and capable of rapidly switching use states so as to achieve the purpose of adapting to welding of different welding materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric welding clamps, and relates to a line connector that is clamped and connected with other conductive components, in particular to a welding ground wire clamp that is suitable for welding of various materials. Background Art

[0002] During welding, a grounding clamp is usually connected to the welding machine to ensure that the ground wire has good contact with the object being welded, which can provide a stable current path to ensure the quality and efficiency of welding. At the same time, the grounding clamp also protects the operator and avoids the risk of electric shock due to equipment leakage and other problems.

[0003] In the construction of power stations, there are many pipes and structures of various materials. During welding operations, in order to avoid carburization and mutual penetration of different materials to reduce the corrosion resistance and strength performance of the parent material, it is necessary to use grounding clamps of different materials for different parent materials. At present, the construction mainly meets this demand by purchasing grounding clamps of different materials and replacing them according to actual usage.

[0004] However, this solution has a high procurement cost. Frequent replacement of the grounding clamp is not only inconvenient, but also easily causes the welding machine aviation plug and the grounding clamp aviation plug connected to it to loosen, resulting in unstable current and leakage, leading to product quality and personnel safety issues. Utility Model Content

[0005] In order to solve the above deficiencies in the prior art, the utility model aims to provide a welding ground wire clamp suitable for welding of various materials, so as to effectively solve the problems of high procurement costs, inconvenient disassembly and assembly, and easy quality and safety hazards.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A welding ground wire clamp suitable for welding of various materials, comprising a first clamp body and a second clamp body which are hinged and staggered with each other through a hinge shaft at a middle position, and a torsion spring which is sleeved and fixed on the hinge shaft for applying a clamping force, the clamping ends of the first clamp body and the second clamp body are both threadedly connected with a multi-faceted roller, the axis of the multi-faceted roller of the first clamp body is parallel to the clamping surface of the first clamp body, and the axis of the multi-faceted roller of the second clamp body is parallel to the clamping surface of the second clamp body; each multi-faceted roller is fixed with a conductive sheet of different materials along the circumferential direction, and the conductive sheet on the first clamp body corresponds to the conductive sheet on the second clamp body to form an actual clamping surface for clamping the object to be welded.

[0008] As a limitation of the present invention, the multi-faceted roller includes a roller and threaded connecting columns fixed on two bottom surfaces of the roller, the roller is in the shape of a prism, and the threaded connecting columns are threadedly connected to the clamping end of the first clamp or the second clamp.

[0009] As a further limitation of the present invention, the roller is in the shape of a triangular prism, and a carbon steel conductive sheet, a copper conductive sheet and a stainless steel conductive sheet are respectively fixed on three side surfaces of the triangular prism.

[0010] As a further limitation of the present invention, a gasket is fixed between the side surface of the multi-faceted roller and the conductive sheet, the width of the gasket is consistent with the width of the conductive sheet, and the widths of both are smaller than the width of the side surface of the multi-faceted roller.

[0011] As another limitation of the present invention, the gasket and the conductive sheet are detachably connected to the side surface of the multi-faceted roller by fixing screws.

[0012] As a further limitation of the present invention, the fixing screw is made of the same material as the conductive sheet it contacts.

[0013] As another limitation of the present invention, the roller is threadedly connected to the threaded connection column.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0015] (1) The multi-faceted roller of the utility model is threadedly connected to the first clamp body and the second clamp body, and conductive sheets of different materials are fixed on the sides of the multi-faceted roller. When welding materials of different materials need to be welded, the multi-faceted roller can be rotated to adjust to the required material, thereby achieving the purpose of using a set of grounding clamps to meet the needs of various materials and saving procurement costs.

[0016] (2) Fixing holes are provided at the clamping ends of the first clamp and the second clamp. The multi-faceted roller can be installed and removed from the first clamp and the second clamp through the fixing holes and the locking nut. The conductive sheet is fixed to the multi-faceted roller by fixing screws. The conductive sheet of a material not included in the grounding clamp can be replaced without disassembling the grounding clamp, thereby avoiding product quality and personnel safety issues caused by repeated disassembly and assembly of the grounding clamp.

[0017] (3) The width of the gasket and the conductive sheet is smaller than the width of the side of the multi-faceted roller, so that the gaskets and the conductive sheets do not contact each other. At the same time, the fixing screws are made of the same material as the conductive sheet, avoiding contact between different materials during use and preventing damage and contamination of the conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a multi-faceted roller in an embodiment of the utility model;

[0021] Figure 3 It is a structural longitudinal section view of the multi-faceted roller in the embodiment of the utility model.

[0022] In the figure: 1, first clamp; 2, second clamp; 3, torsion spring; 4, multi-faceted roller; 41, fixing screw; 42, graphene gasket; 43, conductive sheet; 44, roller; 45, threaded connection column. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] This embodiment discloses a welding ground wire clamp, such as Figure 1 As shown, it comprises a first clamping body 1 and a second clamping body 2 hinged to each other through a hinge shaft, a torsion spring 3 sleeved and fixed on the hinge shaft for applying a clamping force, and a multi-faceted roller 4 threadedly connected to the clamping ends of the first clamping body 1 and the second clamping body 2. The hinge shaft is arranged at a raised position in the middle of the first clamping body 1 and the second clamping body 2. The clamping end is an end where the first clamping body 1 and the second clamping body 2 are clamped after the torsion spring 3 applies a clamping force, and the clamping surface of the clamping end of the first clamping body 1 is arranged opposite and parallel to the clamping surface of the clamping end of the second clamping body 2.

[0025] The clamping ends of the first clamp 1 and the second clamp 2 are both threadedly connected to a multifaceted roller 4, and there are two multifaceted rollers in total. The axis of the multifaceted roller of the first clamp 1 is parallel to the clamping surface of the first clamp 1, and the axis of the multifaceted roller of the second clamp 2 is parallel to the clamping surface of the second clamp 2. The multifaceted roller 4 includes a roller 44 and two threaded connection columns 45. The roller 44 is in the shape of a prism, and can be set to a multifaceted prism with different numbers of faces according to actual needs, such as a triangular prism, a quadrangular prism, a pentagonal prism, etc. Figure 2 , Figure 3As shown, in this embodiment, the roller 44 is in the shape of a triangular prism. Each roller 44 is fixed with a conductive sheet 43 of different materials along the circumferential direction, that is, the conductive sheet on the side of each roller 44 is of different materials. Preferably, in order to facilitate the installation and disassembly of the conductive sheet, a gasket is fixed between the side of the roller 44 and the conductive sheet. The gasket adopts a graphene gasket 42, and the graphene gasket 42 and the conductive sheet 43 on each side are detachably installed on the side of the corresponding roller 44 through a threaded hole and a fixing screw 41. The upper surface of the fixing screw 41 is lower than the upper surface of the conductive sheet 43, so that the welded part can be fully in contact with the conductive sheet 43 when clamped. The thickness of the graphene gasket 42 is 1mm, and the thickness of the conductive sheet 43 is 3mm. The width of the graphene gasket 42 is consistent with that of the conductive sheet 43 and is smaller than the width of the side of the multi-faceted roller 4, so that there is a gap between each graphene gasket 42 to prevent the conductive connection from causing damage and pollution to the conductive sheet 43 of different materials.

[0026] The center positions of the two bottom surfaces of the roller 44 are provided with threaded through holes, and the threaded connecting column 45 passes through the threaded through holes and is threadedly connected to the roller 44. Figure 1 , Figure 2 As shown, fixing holes are provided on both sides of the clamping ends of the first clamping body 1 and the second clamping body 2, and two polyhedral rollers 4 are respectively threadedly connected to the first clamping body 1 and the second clamping body 2 through threaded connection columns 45. That is, fixing holes are provided on both sides of the clamping end of the first clamping body 1, and the threaded connection columns 45 pass through the fixing holes on the first clamping body 1, and then the polyhedral rollers 4 are fixed to the first clamping body 1 using locking nuts. Fixing holes corresponding to the fixing holes in the first clamping body 1 are also provided on both sides of the clamping end of the second clamping body 2, and the threaded connection columns 45 pass through the fixing holes on the second clamping body 2, and then the polyhedral rollers 4 are fixed to the second clamping body 2 using locking nuts.

[0027] It should be added here that the side surface of the multi-faceted roller 4 is parallel to the clamping surface of the first clamp 1 and the second clamp 2 when in use, and the side surface of the multi-faceted roller 4 is higher than the clamping surface of the first clamp 1 and the second clamp 2, so that the conductive sheet on the first clamp corresponds to the conductive sheet on the second clamp to form an actual clamping surface, that is, the conductive sheet on the first clamp 1 and the conductive sheet on the second clamp 2 are arranged opposite and parallel to each other, and because the conductive sheets of the two are higher than the clamping surfaces of the first clamp 1 and the second clamp 2, an actual clamping surface for clamping the object to be welded is formed.

[0028] In this embodiment, three types of conductive sheets 43 are provided, namely, carbon steel conductive sheets, copper conductive sheets and stainless steel conductive sheets. The fixing screws 41 are also provided with three corresponding materials and used accordingly to prevent mutual contamination between different materials. When different welding materials need to be switched to conductive sheets 43 of different materials, it is only necessary to loosen the locking nut, then rotate the multi-faceted roller 4 to the side where the desired conductive sheet 43 is located, and then tighten the locking nut to complete the switch.

[0029] The specific implementation method is as follows: the graphene gasket 42 and the conductive sheets 43 of three materials are fixed to the three sides of the multi-faceted roller 4 using fixing screws 41 corresponding to the materials of the conductive sheets 43. After confirming the material of the welding material, loosen the locking nut, rotate the multi-faceted roller 4 to select the conductive sheet 43 of the corresponding material, make the two sides of the multi-faceted roller 4 parallel to each other, rotate the locking nut to lock and fix the multi-faceted roller 4, and then it can be used.

[0030] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A welding ground wire clamp suitable for welding of various materials, comprising a first clamp body and a second clamp body hinged to each other through a hinge shaft at a middle position, and a torsion spring sleeved and fixed on the hinge shaft for applying a clamping force, characterized in that: The clamping ends of the first clamp and the second clamp are both threadedly connected to multi-faceted rollers, the axis of the multi-faceted rollers of the first clamp is parallel to the clamping surface of the first clamp, and the axis of the multi-faceted rollers of the second clamp is parallel to the clamping surface of the second clamp; each multi-faceted roller is fixed with a conductive sheet of different materials along the circumferential direction, and the conductive sheet on the first clamp corresponds to the conductive sheet on the second clamp to form an actual clamping surface for clamping the object to be welded.

2. The welding ground wire clamp suitable for welding of various materials according to claim 1, characterized in that: The multi-faceted roller comprises a roller and threaded connection columns fixed on two bottom surfaces of the roller. The roller is in the shape of a prism, and the threaded connection columns are threadedly connected to the clamping end of the first clamp or the second clamp.

3. The welding ground wire clamp suitable for welding of various materials according to claim 2, characterized in that: The roller is in the shape of a triangular prism, and a carbon steel conductive sheet, a copper conductive sheet and a stainless steel conductive sheet are respectively fixed on the three sides of the triangular prism.

4. A welding ground wire clamp suitable for welding of various materials according to any one of claims 1 to 3, characterized in that: A gasket is fixed between the side surface of the multi-faceted roller and the conductive sheet. The width of the gasket is consistent with the width of the conductive sheet, and the widths of both are smaller than the width of the side surface of the multi-faceted roller.

5. The welding ground wire clamp suitable for welding of various materials according to claim 4, characterized in that: The gasket and the conductive sheet are detachably connected to the side surface of the multi-faceted roller through fixing screws.

6. The welding ground wire clamp suitable for welding of various materials according to claim 5, characterized in that: The fixing screw is made of the same material as the conductive sheet it contacts.

7. The welding ground wire clamp suitable for welding of various materials according to claim 2, characterized in that: The roller is threadedly connected to the threaded connection column.

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