Grounding device of welding machine

Abstract

A welding machine grounding device disclosed by the present invention comprises a grounding tool, a ground wire structure and a jacking screw rod, the ground wire structure and the jacking screw rod are both installed on the grounding tool, the grounding tool is fixed on a weldment, and the grounding tool comprises a middle base, a first side base and a second side base. Connecting ends are arranged at the two ends of the middle base, the connecting end on one side of the middle base is connected with the first side base, and the connecting end on the other side of the middle base is connected with the second side base. The technical key points are as follows: the structural form of the grounding tool is changed by adjusting the included angle between the side base and the middle base, so that the grounding tool is suitable for weldments with different structural characteristics, the universality and the use flexibility of the grounding tool are improved, a spring structure is not arranged on the grounding tool, the spring structure is replaced by a screw rod structure, and the grounding tool is convenient to use. The grounding tool has the magnetic attraction function and can be directly attracted to a weldment, and the clamping and fixing environment does not need to be considered.

Description

Technical Field

[0001] The present invention relates to the technical field of welding machine grounding, and particularly relates to a welding machine grounding device. Background Art

[0002] Welding, as an important process type in modern advanced manufacturing, has received extensive attention. During the construction of ships, welding technology is a key technology. In many important welded structures, unqualified welding quality and insufficient strength and toughness of joints lead to the failure of the entire welded structure, causing huge losses. With the production needs of modern industry and other fields, welding technology has been continuously improved, and the quality of welding technology determines the quality of hull construction. During actual use, welding machine grounding protection is an important measure to ensure safe production.

[0003] A large number of various welding operations are required in shipbuilding. During daily inspections, it is often found that the grounding devices of welding machines are diverse in form and used irregularly. The commonly used grounding device is a ground wire clip structure. The use of the ground wire clip structure requires a suitable clamping point. The ground wire clip structure in the shape of a clip is easily affected by the shape and structural characteristics of the "welded part" and cannot be clamped normally. The ground wire clip structure relies on spring force to clamp the welded part. Therefore, the quality of the spring structure directly affects the quality of the ground wire clip structure. After long-term use of the ground wire clip structure, its spring structure is prone to elastic failure, making the ground wire clip structure unable to continue to be used normally. The existing grounding devices are easily damaged and have a short service life. Summary of the Invention

[0004] Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a welding machine grounding device. By adjusting the angle between the side base and the middle base, the structural form of the grounding tooling is changed to make the grounding tooling suitable for welded parts with different structural characteristics, improving the versatility and flexibility of use of the grounding tooling. There is no spring structure on the grounding tooling, and the spring structure is replaced by a lead screw structure. The grounding tooling has a magnetic adsorption function and can directly adsorb on the welded part without considering the clamping and fixing environment, solving the technical problems mentioned in the background art.

[0005] Technical Solutions To achieve the above object, the present invention is realized through the following technical solutions: A welding machine grounding device includes a grounding tooling, a ground wire structure, and a tightening screw rod. The ground wire structure and the tightening screw rod are both installed on the grounding tooling, and the grounding tooling is fixed on the welded part. The grounding tooling includes an intermediate base, a first side base, and a second side base. The grounding tooling, the ground wire structure, and the tightening screw rod together form the grounding device. The ground wire structure is installed on the intermediate base of the grounding tooling, and the tightening screw rod is installed on the second side base of the grounding tooling. The intermediate base, the first side base, and the second side base together form the grounding tooling. Both ends of the intermediate base are provided with connection ends. The connection end on one side of the intermediate base is connected to the first side base, and the connection end on the other side of the intermediate base is connected to the second side base. One end of the first side base is rotatably connected to the lower part of the connection end through a rotating shaft, and one end of the first side base is fixedly connected to the upper part of the connection end through a tightening screw. When the tightening screw at the first side base is loosened, the fastening force between the first side base and the intermediate base is released. At this time, the first side base can rotate relative to the intermediate base with the rotating shaft as the base point. One end of the second side base is rotatably connected to the lower part of the connection end through a rotating shaft, and one end of the second side base is fixedly connected to the upper part of the connection end through a tightening screw. When the tightening screw at the second side base is loosened, the fastening force between the second side base and the intermediate base is released. At this time, the second side base can rotate relative to the intermediate base with the rotating shaft as the base point. The tightening screw rod includes a screw rod main body. One end of the screw rod main body is welded and fixed with a handle, and the other end of the screw rod main body is provided with a screw rod head. A gasket and a conductive head are arranged on the screw rod head. The conductive head contacts the surface of the welded part to ensure good conduction of the welding machine ground wire. A pressing block is sleeved on the screw rod head. When manually rotating the tightening screw rod, the position of the pressing block at one end of the tightening screw rod can be adjusted. According to actual use requirements, the position of the pressing block is adjusted. A threaded hole is opened on the second side base. The screw rod main body of the tightening screw rod passes through the threaded hole of the second side base and is threadedly connected with the threaded hole. A ground wire connection seat is arranged on the intermediate base. A fixing hole is opened on the ground wire connection seat. The ground wire connection seat and the ground wire structure are fixedly connected through a locking screw.

[0006] In a possible implementation manner, the locking screw includes a nut. The ground wire structure includes a ground wire main body and a connection head. The locking screw is threadedly connected with the fixing hole of the ground wire connection seat. When connecting the ground wire structure, the connection head of the ground wire structure is placed at the fixing hole of the ground wire connection seat, and then the locking screw is screwed on. The connection head of the ground wire structure is pressed by the nut of the locking screw.

[0007] In a possible implementation manner, one end of the tightening screw is fixedly connected with a tightening head. When manually rotating the tightening screw, the tightening screw drives the tightening head at its one end to move synchronously. When the tightening head is in close contact with the surface of the first side base or the second side base, the locking of the first side base or the second side base is realized.

[0008] In a possible implementation, the first side base can rotate relative to the middle base, and the deflection angle of the first side base relative to the middle base is flexibly adjustable, enabling flexible adjustment of the included angle between the first side base and the middle base.

[0009] In a possible implementation, the second side base can rotate relative to the middle base, and the deflection angle of the second side base relative to the middle base is flexibly adjustable, enabling flexible adjustment of the included angle between the second side base and the middle base.

[0010] In a possible implementation, the lead screw body and the handle form a T-shaped structure, which is convenient for applying force and convenient for adjusting the pressing block.

[0011] In a possible implementation, holes are provided in the upper parts of the connecting ends at both ends of the middle base, and the tightening screws pass through the holes and are threadedly connected to the holes of the connecting ends, enabling the tightening and loosening of the tightening screws at the first side base and enabling the tightening and loosening of the tightening screws at the second side base.

[0012] In a possible implementation, multiple groups of first magnet blocks are arranged on the inner side surface of the middle base, and the multiple groups of first magnet blocks are evenly spaced. The middle base can be directly magnetically attracted and fixed to the welded part through the first magnet blocks, thereby realizing the fixation of the grounding tooling.

[0013] In a possible implementation, multiple groups of second magnet blocks are arranged on the inner side surface of the first side base, and the multiple groups of second magnet blocks are evenly spaced. The first side base can be directly magnetically attracted and fixed to the welded part through the second magnet blocks, thereby realizing the fixation of the grounding tooling.

[0014] In a possible implementation, each group of the first magnet blocks is fixed to the middle base by screws, and each group of the second magnet blocks is fixed to the first side base by screws, enabling the individual replacement of the first magnet blocks and the second magnet blocks, and facilitating the replacement of the first magnet blocks and the second magnet blocks.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The included angle between the first side base and the middle base of the present invention is flexibly adjustable, and the included angle between the second side base and the middle base is flexibly adjustable. By adjusting the included angle between the side base and the middle base, the structural form of the grounding tooling is changed, enabling the grounding tooling to be applicable to welded parts with different structural characteristics, improving the versatility and use flexibility of the grounding tooling. One set of grounding tooling has multiple fixed usage methods, suitable for different types of welded part structures, and is not easily affected by the shape and structural characteristics of the welded parts.

[0016] 2. The form of the grounding tooling of the present invention can be adjusted according to the structural characteristics of the welded part, replacing the conventional ground wire clamp structure. There is no spring structure provided on the grounding tooling, and the screw rod structure is used to replace the spring structure, avoiding the damage phenomenon caused by spring failure and extending the service life of the grounding tooling.

[0017] 3. Through the additional multiple groups of first magnet blocks and second magnet blocks, the grounding tooling of the present invention has the magnetic adsorption function. The grounding tooling can be directly adsorbed on the welded part without considering the clamping and fixing environment, and is applicable to the grounding and fixing of special-shaped metal welded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and coordinates with the drawings to describe in detail as follows.

[0019] Figure 1 Assembly schematic of the grounding tooling, ground wire structure and tightening screw rod of the present invention Figure One ; Figure 2 Assembly schematic of the grounding tooling, ground wire structure and tightening screw rod of the present invention Figure Two ; Figure 3 Side view structure schematic diagram of the grounding tooling of the present invention; Figure 4 Another side view structure schematic diagram of the grounding tooling of the present invention; Figure 5 Connection schematic diagram of the middle base, first side base and second side base of the present invention; Figure 6 For Figure 1 Local enlarged view of area A in Figure 7 Structure schematic diagram of the screw rod main body of the present invention; Figure 8 Structure schematic diagram of the pressing block of the present invention; Figure 9 Assembly schematic diagram of the screw rod main body and the pressing block of the present invention; Figure 10 Usage schematic of the present invention Figure One ; Figure 11 Usage schematic of the present invention Figure Two ; Figure 12 Usage schematic of the present invention Figure Three .

[0020] In the figure: 1. Grounding tooling; 2. Ground wire structure; 3. Tightening screw rod; 11. Intermediate base; 12. First side base; 13. Second side base; 111. Connection end; 112. Rotating shaft; 113. Tightening screw; 114. Ground wire connection seat; 115. Fixing hole; 116. Locking screw; 117. Tightening head; 118. First magnet block; 121. Second magnet block; 131. Screw hole; 21. Ground wire body; 22. Connection head; 31. Screw rod body; 32. Handle; 33. Screw rod head; 34. Pressing block; 35. Gasket; 36. Conductive head. Specific implementation manner

[0021] In an embodiment of the present application, a welding machine grounding device is provided. By adjusting the included angle between the side base and the intermediate base, the structural form of the grounding tooling is changed, so that the grounding tooling is applicable to workpieces with different structural characteristics, improving the versatility and use flexibility of the grounding tooling. There is no spring structure provided on the grounding tooling, and the spring structure is replaced by a screw rod structure. The grounding tooling has a magnetic adsorption function and can directly adsorb on the workpiece without considering the clamping and fixing environment, solving the technical problems mentioned in the background art.

[0022] The technical solution in the embodiment of the present application to solve the problems in the above background art has the following general idea: Embodiment 1: Please refer to Figures 1 - 12, the present invention provides a technical solution: a welding machine grounding device, including a grounding tooling 1, a ground wire structure 2 and a tightening screw 3. The ground wire structure 2 and the tightening screw 3 are both installed on the grounding tooling 1, and the grounding tooling 1 is fixed on the welded part. The grounding tooling 1 includes an intermediate base 11, a first side base 12 and a second side base 13. The ground wire structure 2 is installed on the intermediate base 11 of the grounding tooling 1, and the tightening screw 3 is installed on the second side base 13 of the grounding tooling 1. Both ends of the intermediate base 11 are provided with connection ends 111. The connection end 111 on one side of the intermediate base 11 is connected to the first side base 12, and the connection end 111 on the other side of the intermediate base 11 is connected to the second side base 13. One end of the first side base 12 is rotatably connected to the lower part of the connection end 111 through a rotating shaft 112, and one end of the first side base 12 is fixedly connected to the upper part of the connection end 111 through a tightening screw 113. One end of the second side base 13 is rotatably connected to the lower part of the connection end 111 through a rotating shaft 112, and one end of the second side base 13 is fixedly connected to the upper part of the connection end 111 through a tightening screw 113. The tightening screw 3 includes a screw main body 31, and the screw main body 31 is provided with a thread adapted to the screw hole 131. One end of the screw main body 31 is welded and fixed with a handle 32, and the other end of the screw main body 31 is provided with a screw head 33. A gasket 35 and a conductive head 36 are arranged on the screw head 33. The conductive head 36 contacts the surface of the welded part to ensure good conduction of the welding machine ground wire. A pressing block 34 is sleeved on the screw head 33. A screw hole 131 is opened on the second side base 13. The screw main body 31 of the tightening screw 3 passes through the screw hole 131 of the second side base 13 and is threadedly connected with the screw hole 131. An earth wire connection seat 114 is arranged on the intermediate base 11, and a fixing hole 115 is opened on the earth wire connection seat 114. The earth wire connection seat 114 and the earth wire structure 2 are fixedly connected through a locking screw 116.

[0023] When manually rotating the tightening screw 3, the position of the pressing block 34 at one end of the tightening screw 3 can be adjusted, and the position of the pressing block 34 can be adjusted according to actual use requirements.

[0024] The grounding tooling 1, the ground wire structure 2 and the tightening screw 3 together constitute a grounding device. The intermediate base 11, the first side base 12 and the second side base 13 together constitute the grounding tooling 1. One end of the first side base 12 is connected to the intermediate base 11, and one end of the first side base 12 includes two connection points, one is the connection point formed by the rotating shaft 112, and the other is the connection point formed by the tightening screw 113; When loosening the tightening screw 113 at the first-side base 12, the fastening force between the first-side base 12 and the middle base 11 is released. At this time, the first-side base 12 can rotate relative to the middle base 11 with the rotating shaft 112 as the base point, and the deflection angle of the first-side base 12 relative to the middle base 11 can be adjusted. After the adjustment is completed, tighten the tightening screw 113 at the first-side base 12, and re-fasten the first-side base 12 and the middle base 11 through this tightening screw 113; When loosening the tightening screw 113 at the second-side base 13, the fastening force between the second-side base 13 and the middle base 11 is released. At this time, the second-side base 13 can rotate relative to the middle base 11 with the rotating shaft 112 as the base point, and the deflection angle of the second-side base 13 relative to the middle base 11 can be adjusted. After the adjustment is completed, tighten the tightening screw 113 at the second-side base 13, and re-fasten the second-side base 13 and the middle base 11 through this tightening screw 113; The included angle between the first-side base 12 and the middle base 11 is flexibly adjustable, and the included angle between the second-side base 13 and the middle base 11 is flexibly adjustable. As Figure 10 、 Figure 11 and Figure 12 shown, according to the structural characteristics of the welded part, correspondingly adjust the included angle between the first-side base 12 and the middle base 11, and the included angle between the second-side base 13 and the middle base 11. By adjusting the included angle between the side base and the middle base 11, the structural form of the grounding tooling 1 is changed, so that the grounding tooling 1 is applicable to welded parts with different structural characteristics, improving the versatility and usage flexibility of the grounding tooling 1. A set of grounding tooling 1 has multiple fixed usage methods, suitable for different types of welded part structures.

[0025] As Figure 10 、 Figure 11 and Figure 12 shown, when using the grounding device, first determine the grounding position of the welded part, and then fix the grounding tooling 1 at this position. The form of the grounding tooling 1 is manually adjusted correspondingly according to the structural characteristics of the welded part. There is no spring structure provided on the grounding tooling 1, and the spring structure is replaced by a lead screw structure, avoiding damage caused by spring failure, extending the service life of the grounding tooling 1, and being able to meet the needs of production and safety while saving costs; The fixing method of the grounding tooling 1 is: When grounding a welded part with a regular shape, as Figure 10 shown, press the first-side base 12 against one side of the welded part, and then manually rotate the tightening lead screw 3 to adjust the position of the pressing block 34 at one end of the tightening lead screw 3, press the pressing block 34 against the other side of the welded part, and clamp the welded part by relying on the first-side base 12 and the pressing block 34, so as to fix the grounding tooling 1 on this welded part; When grounding a welded part with an irregular shape, such as Figure 11 and Figure 12 shown, adjust the shape of the grounding tooling 1 according to the structural characteristics of the welded part. In the same way, press the first-side base 12 against one side of the welded part, and then manually rotate the tightening screw 3 to adjust the position of the pressing block 34 at one end of the tightening screw 3, and press the pressing block 34 against the other side of the welded part. Clamp the welded part by relying on the first-side base 12 and the pressing block 34, so as to fix the grounding tooling 1 on the welded part.

[0026] In some examples, the locking screw 116 includes a nut, the ground wire structure 2 includes a ground wire main body 21 and a connector 22, and the locking screw 116 is threadedly connected with the fixing hole 115 of the ground wire connecting seat 114.

[0027] When connecting the ground wire structure 2, place the connector 22 of the ground wire structure 2 at the fixing hole 115 of the ground wire connecting seat 114, and then screw on the locking screw 116. Press the connector 22 of the ground wire structure 2 through the nut of the locking screw 116, so as to connect and fix the ground wire structure 2 with the grounding tooling 1 together. When disassembling the ground wire structure 2, just unscrew the locking screw 116, and the installation and disassembly of the ground wire structure 2 are convenient and fast.

[0028] In some examples, a tightening head 117 is fixedly connected to one end of the tightening screw 113. When the tightening head 117 is in close contact with the surface of the first-side base 12 or the second-side base 13, the locking of the first-side base 12 or the second-side base 13 is realized.

[0029] When manually rotating the tightening screw 113, the tightening screw 113 drives the tightening head 117 at one end to move synchronously. When it is necessary to lock the first-side base 12 or the second-side base 13 through the tightening screw 113, just manually rotate the tightening screw 113 to drive the tightening head 117 at the end to move, so that the tightening head 117 is in close contact with the contact surface of the first-side base 12 or the second-side base 13, and the locking of the first-side base 12 or the second-side base 13 can be realized, and the deflection angle of the first-side base 12 or the second-side base 13 can be determined and kept stable.

[0030] In some examples, the first-side base 12 can rotate relative to the middle base 11, and the deflection angle of the first-side base 12 relative to the middle base 11 is flexibly adjustable, and the included angle between the first-side base 12 and the middle base 11 can be flexibly adjusted.

[0031] In some examples, the second-side base 13 can rotate relative to the middle base 11, and the deflection angle of the second-side base 13 relative to the middle base 11 is flexibly adjustable, and the included angle between the second-side base 13 and the middle base 11 can be flexibly adjusted.

[0032] In some examples, the lead screw body 31 and the handle 32 form a T-shaped structure, which is convenient for applying force and facilitating the adjustment of the pressing block 34.

[0033] In some examples, holes are provided in the upper parts of the two connecting ends 111 at both ends of the intermediate base 11. The tightening screws 113 pass through the holes and are threadedly connected to the holes of the connecting ends 111, enabling the tightening and loosening of the tightening screws 113 at the first side base 12 and the tightening and loosening of the tightening screws 113 at the second side base 13.

[0034] By adopting the above technical solutions: The angle between the first side base 12 and the intermediate base 11 is flexibly adjustable, and the angle between the second side base 13 and the intermediate base 11 is flexibly adjustable. By adjusting the angle between the side base and the intermediate base 11, the structural form of the grounding tooling 1 is changed, enabling the grounding tooling 1 to be applicable to weldments with different structural characteristics, improving the versatility and usage flexibility of the grounding tooling 1. A set of grounding tooling 1 has multiple fixed usage methods, suitable for different types of weldment structures, and is not easily affected by the shape and structural characteristics of the weldment.

[0035] The form of the grounding tooling 1 can be adjusted accordingly according to the structural characteristics of the weldment, replacing the conventional ground wire clamp structure. No spring structure is provided on the grounding tooling 1, and the spring structure is replaced by a lead screw structure, avoiding damage caused by spring failure and extending the service life of the grounding tooling 1.

[0036] Embodiment 2: Based on Embodiment 1, this embodiment introduces the specific structure of the grounding tooling 1 in a welding machine grounding device. Multiple groups of first magnet blocks 118 are arranged on the inner side surface of the intermediate base 11, and the multiple groups of first magnet blocks 118 are evenly spaced.

[0037] By adding multiple groups of first magnet blocks 118 on the inner side surface of the intermediate base 11, the intermediate base 11 can be directly magnetically attracted and fixed to the weldment through the first magnet blocks 118, thereby achieving the fixation of the grounding tooling 1.

[0038] In some examples, multiple groups of second magnet blocks 121 are arranged on the inner side surface of the first side base 12, and the multiple groups of second magnet blocks 121 are evenly spaced.

[0039] By adding multiple groups of second magnet blocks 121 on the inner side surface of the first side base 12, the first side base 12 can be directly magnetically attracted and fixed to the weldment through the second magnet blocks 121, thereby achieving the fixation of the grounding tooling 1.

[0040] In some examples, multiple groups of first magnet blocks 118 and the middle base 11 are fixed by screws, and multiple groups of second magnet blocks 121 and the first side base 12 are fixed by screws. The connection between multiple groups of first magnet blocks 118 and the middle base 11 is detachable, and the connection between multiple groups of second magnet blocks 121 and the first side base 12 is detachable, enabling the separate replacement of the first magnet blocks 118 and the second magnet blocks 121, which is convenient for replacing the first magnet blocks 118 and the second magnet blocks 121.

[0041] By adopting the above technical solution: With the addition of multiple groups of first magnet blocks 118 and second magnet blocks 121, the grounding tooling 1 has a magnetic adsorption function. The grounding tooling 1 can directly adsorb on the welded part, without considering the clamping and fixing environment, and is suitable for grounding and fixing of special-shaped metal welded parts.

[0042] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A welding machine grounding device, comprising a grounding tool (1), a ground wire structure (2) and a tightening screw rod (3), characterized in that: The ground wire structure (2) and the tightening screw rod (3) are both mounted on a grounding tool (1); the grounding tool (1) is fixed on a weldment; the grounding tool (1) comprises an intermediate base (11), a first side base (12) and a second side base (13); both ends of the intermediate base (11) are provided with connecting ends (111); the connecting end (111) on one side of the intermediate base (11) is connected to the first side base (12); and the connecting end (111) on the other side of the intermediate base (11) is connected to the first side base (12). The connecting end (111) on the side is connected to the second side base (13); one end of the first side base (12) is rotatably connected to the lower part of the connecting end (111) via a rotating shaft (112); one end of the first side base (12) is fixedly connected to the upper part of the connecting end (111) via a tightening screw (113); one end of the second side base (13) is rotatably connected to the lower part of the connecting end (111) via the rotating shaft (112); one end of the second side base (13) is The upper part of the connecting end (111) is fixedly connected to the upper part by a tightening screw (113), the tightening screw rod (3) comprises a screw rod body (31), one end of the screw rod body (31) is welded and fixed with a handle (32), the other end of the screw rod body (31) is provided with a screw rod head (33), a gasket (35) and a conductive head (36) are provided on the screw rod head (33), a pressing block (34) is sleeved on the screw rod head (33), and the second side base (13) is provided with a screw hole (131), the screw rod body (31) of the tightening screw rod (3) passes through the screw hole (131) of the second side base (13) and is threadedly connected to the screw hole (131), the intermediate base (11) is provided with a ground wire connection seat (114), the ground wire connection seat (114) is provided with a fixing hole (115), and the ground wire connection seat (114) is fixedly connected to the ground wire structure (2) by a locking screw (116).

2. A welding machine grounding device according to claim 1, characterized in that: The locking screw (116) comprises a nut, the ground wire structure (2) comprises a ground wire body (21) and a connector (22), and the locking screw (116) is threadedly connected to a fixing hole (115) of a ground wire connection seat (114).

3. A welding machine grounding device according to claim 1, characterized in that: One end of the tightening screw (113) is fixedly connected to a tightening head (117).

4. A welding machine grounding device according to claim 1, characterized in that: The first side base (12) is rotatable relative to the middle base (11).

5. A welding machine grounding device according to claim 1, characterized in that: The second side base (13) is rotatable relative to the middle base (11).

6. A welding machine grounding device according to claim 1, characterized in that: The screw rod body (31) and the handle (32) form a T-shaped structure.

7. A welding machine grounding device according to claim 1, characterized in that: The upper parts of the connecting ends (111) at both ends of the intermediate base (11) are provided with holes, and the tightening screws (113) pass through the holes and are threadedly connected to the holes of the connecting ends (111).

8. A welding machine grounding device according to claim 1, characterized in that: A plurality of groups of first magnet blocks (118) are arranged on the inner side surface of the intermediate base (11), and the plurality of groups of first magnet blocks (118) are evenly spaced and distributed.

9. A welding machine grounding device according to claim 8, characterized in that: A plurality of groups of second magnet blocks (121) are arranged on the inner side surface of the first side base (12), and the plurality of groups of second magnet blocks (121) are evenly spaced and distributed.

10. A welding machine grounding device according to claim 9, characterized in that: The plurality of groups of the first magnet blocks (118) are fixed to the middle base (11) via screws, and the plurality of groups of the second magnet blocks (121) are fixed to the first side base (12) via screws.

Images