Welding grounding device of welding machine

Abstract

The utility model provides a welding grounding device of a welding machine, which comprises a fixed base, a first adsorption part with a first adsorption surface and a second adsorption part with a second adsorption surface are arranged on the fixed base, and the fixed base is used for being in adsorption connection with a workpiece to be welded so as to fix the fixed base on the workpiece to be welded; the plane where the first adsorption face is located and the plane where the second adsorption face is located are arranged in a crossed mode and form a containing space used for containing the to-be-connected position of a to-be-welded workpiece. An electric welding machine connecting wire is arranged on the fixed base and used for being connected with an electric welding machine, and the electric welding machine is used for transmitting generated current to the electric welding machine connecting wire; the electric conduction assembly is installed on the fixed base, the free end of the electric conduction assembly is used for abutting against the surface of a workpiece to be welded, and the electric welding machine connecting wire is connected with the electric conduction assembly so that current can be transmitted to the surface of the workpiece to be welded through the electric conduction assembly to complete welding operation. And the stability between the fixed base and the workpiece to be welded is enhanced.

Description

Technical Field

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

[0002] Before welding operation, it is usually selected to clamp the wiring clip at the workpiece to be welded. The electric welding machine uses the large current generated by the instantaneous short circuit between the positive and negative poles plus the high-temperature arc generated by the local large resistance to melt the solder on the welding electrode and the material to be welded, so as to combine the contacted objects.

[0003] However, when encountering a workpiece to be welded with a flat surface and no clamping position, it is often necessary to make a grounding pile. When the welding clamp is pressed on the grounding pile, it is easy to cause poor grounding. Due to the reason of poor grounding contact, electric sparks will be formed to damage the surface of the workpiece, as well as faults such as current interruption, resulting in unstable welding arc, and then affecting the welding quality and welding efficiency. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a welding grounding device for a welding machine to solve the problem of unstable welding arc caused by the flat surface of the workpiece to be welded and no clamping position in the prior art.

[0005] To achieve the above purpose, according to one aspect of the utility model, a welding grounding device for a welding machine is provided, including:

[0006] A fixed base, on which a first adsorption part and a second adsorption part are arranged. The first adsorption part has a first adsorption surface, and the second adsorption part has a second adsorption surface. Both the first adsorption surface and the second adsorption surface are used for adsorbing and connecting with the workpiece to be welded to fix the fixed base to the workpiece to be welded; the plane where the first adsorption surface is located intersects with the plane where the second adsorption surface is located, so as to form an accommodation space for accommodating the connection position of the workpiece to be welded between the first adsorption surface and the second adsorption surface;

[0007] An electric welding machine connecting wire, which is arranged on the fixed base and is used for connecting with the electric welding machine. The electric welding machine is used to transmit the generated current to the electric welding machine connecting wire;

[0008] A conductive component, which is installed on the fixed base. The free end of the conductive component is used for abutting against the surface of the workpiece to be welded. The electric welding machine connecting wire is connected with the conductive component to transmit the current to the surface of the workpiece to be welded through the conductive component to complete the welding operation.

[0009] Further, the fixed base further has a third adsorption portion and a fourth adsorption portion. The third adsorption portion has a third adsorption surface, and the included angle formed by the third adsorption surface and the first adsorption surface is a first preset angle. The fourth adsorption portion has a fourth adsorption surface, and the included angle formed by the fourth adsorption surface and the second adsorption surface is a second preset angle. Both the first preset angle and the second preset angle are between 90 degrees and 120 degrees.

[0010] Further, the welding machine grounding device further includes: a bearing portion, which is disposed on the fixed base and is used for bearing the conductive component so that the conductive component is installed on the fixed base through the bearing portion.

[0011] Further, the bearing portion includes: a first mounting plate, which is detachably mounted on the fixed base;

[0012] a second mounting plate, one end of the second mounting plate is connected to the first mounting plate, and the other end of the second mounting plate extends in a direction away from the fixed base. The conductive component is detachably mounted on the second mounting plate.

[0013] Further, the second mounting plate is provided with a mounting hole; the conductive component includes: a conductor, which is movably disposed in the mounting hole and is movably arranged along the axis direction of the mounting hole;

[0014] an elastic member, which is sleeved outside the conductor. One end of the elastic member is connected to the second mounting plate, and the other end of the elastic member is connected to the conductor to reset under the action of the elastic member when the conductor compresses the elastic member.

[0015] Further, the conductive component further includes: a wire, one end of the wire is connected to the conductor, and the other end of the wire is connected to the welding machine connection wire, which is used to conduct the welding machine connection wire and the conductor so that the current generated by the welding machine sequentially passes through the welding machine connection wire, the wire and the conductor to the surface of the workpiece to be welded to complete the welding operation.

[0016] Further, the conductive component further includes: a locking member; a fastening threaded hole, which is provided on the second mounting plate;

[0017] A through hole is provided at one end of the wire and the welding machine connection wire. The end of the locking member sequentially passes through the through hole and the fastening threaded hole to fix the wire and the welding machine connection wire on the second mounting plate.

[0018] Further, the material of the bearing portion is any one of polyoxymethylene, bakelite, phenolic resin and silicone resin.

[0019] Further, conductive silver paste is coated at the connection between the wire and the welding machine connection wire and at the connection between the wire and the conductor.

[0020] Further, the welding machine welding grounding device further includes: a magnetic attracting part, which is arranged between the first attracting part and the second attracting part, and is used for attracting debris generated during the welding operation.

[0021] Applying the technical solution of the present utility model, in this application, by providing a first attracting part and a second attracting part that can cross on the fixed base, the contact area between the fixed base and the welding position on the workpiece to be welded can be increased, thereby increasing the stability between the fixed base and the workpiece to be welded. It can avoid the self-weight of the welding machine connecting wire dragging the free end of the conductive component away from the surface of the workpiece to be welded during use, resulting in poor grounding and inability to work properly. At the same time, it can also avoid damage to the free end of the conductive component. The welding machine welding grounding device of this application has a simple structure, is relatively easy to implement, and has a relatively low cost and is easy to use. Description of the Drawings

[0022] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0023] Figure 1 Shows an overall schematic diagram of the welding machine welding grounding device according to the present utility model;

[0024] Figure 2 Shows a bottom schematic diagram of the welding machine welding grounding device of the present utility model.

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 1. Fixed base; 2. First attracting part; 3. Second attracting part; 4. Welding machine connecting wire; 5. Third attracting part; 6. Fourth attracting part; 7. First mounting plate; 8. Second mounting plate; 9. Conductor; 10. Elastic member; 11. Wire; 12. Locking member; 13. First mounting seat; 14. Magnetic attracting part. Detailed Embodiments

[0027] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0028] Before welding operations, it is usually selected to clamp the connection clip at the workpiece to be welded. The welding machine uses the large current generated by the short circuit of the positive and negative poles in an instant plus the high-temperature arc generated by the local large resistance to melt the solder on the welding electrode and the material to be welded, so as to combine the contacted objects.

[0029] However, when encountering a workpiece to be welded with a flat surface and no clamping position, it is often necessary to make a grounding pile. When the welding clamp is pressed against the grounding pile, it is easy to cause poor grounding. Due to the poor grounding contact, faults such as electric spark damage to the workpiece surface and current interruption will occur, resulting in unstable welding arcs, and further affecting the welding quality and efficiency.

[0030] Therefore, the main purpose of this application is to provide a welding grounding device for a welding machine to solve the problem of unstable welding arcs in the prior art when the surface of the workpiece to be welded is flat and there is no clamping position for the workpiece to be welded.

[0031] The welding grounding device of this application includes a fixed base 1. A first adsorption part 2 and a second adsorption part 3 are arranged on the fixed base 1. The first adsorption part 2 has a first adsorption surface, and the second adsorption part 3 has a second adsorption surface. Both the first adsorption surface and the second adsorption surface are used for adsorbing and connecting with the workpiece to be welded to fix the fixed base 1 to the workpiece to be welded; the plane where the first adsorption surface is located intersects with the plane where the second adsorption surface is located, so as to form an accommodation space for accommodating the connection position of the workpiece to be welded between the first adsorption surface and the second adsorption surface;

[0032] An electric welding machine connecting wire 4 is arranged on the fixed base 1. The electric welding machine connecting wire 4 is used for connecting with the electric welding machine, and the electric welding machine is used to transmit the generated current to the electric welding machine connecting wire 4;

[0033] A conductive component is installed on the fixed base 1. The free end of the conductive component is used for abutting against the surface of the workpiece to be welded. The electric welding machine connecting wire 4 is connected with the conductive component to transmit the current to the surface of the workpiece to be welded through the conductive component to complete the welding operation.

[0034] Specifically, the welding grounding device of this application includes a fixed base 1, such as Figure 1 And Figure 2As shown in the figure, a first adsorption part 2 and a second adsorption part 3 are arranged on the fixed base 1. The first adsorption part 2 has a first adsorption surface, and the second adsorption part 3 has a second adsorption surface. Among them, the first adsorption surface and the second adsorption surface are used to fix the fixed base 1 on the workpiece to be welded. The plane where the first adsorption surface is located is the first plane, and the plane where the second adsorption surface is located is the second plane. The first plane and the second plane are arranged crosswise. That is, a V-shaped structure is formed between the first plane and the second plane, so as to form a receiving space between the first adsorption surface and the second adsorption surface that can be used to accommodate the connection position of the workpiece to be welded. When the surface of the workpiece to be welded is circular, the first adsorption surface and the second adsorption surface can increase the contact area between the fixed base 1 and the workpiece to be welded, so that the fixed base 1 can be stably fixed on the workpiece to be welded, and will not be separated from the workpiece to be welded during the working process due to the weight of the welding machine grounding device itself, resulting in poor contact, forming electric sparks to damage the surface of the workpiece to be welded, and current interruption and other faults, which will further affect the welding quality and welding efficiency. An electric welding machine connecting wire 4 is also arranged on the fixed base 1. The electric welding machine connecting wire 4 is used to connect with the electric welding machine. A conductive component is also installed on the fixed base 1. The conductive component has a free end. The free end of the conductive component is used to contact the surface of the workpiece to be welded. And the electric welding machine connecting wire 4 is connected to the conductive component. A switch is also arranged on the fixed base 1 of the present application. When the switch is turned on, the fixed base 1 is full of magnetic force and can fix the fixed base 1 on the workpiece to be welded through the magnetic force. When the switch is turned off, the fixed base 1 is separated from the surface of the workpiece to be welded. During the working process, turn on the switch of the fixed base 1, fix the fixed base 1 on the surface of the workpiece to be welded, connect the electric welding machine to the electric welding machine connecting wire 4. When the electric welding machine generates current, the current is transmitted to the conductive component through the electric welding machine connecting wire 4, and the conductive component then transmits the current to the surface of the workpiece to be welded to complete the welding operation.

[0035] In the present application, by providing the first adsorption part 2 and the second adsorption part 3 that can be crossed on the fixed base 1, the contact area between the fixed base 1 and the welding position on the workpiece to be welded can be increased, thereby increasing the stability between the fixed base 1 and the workpiece to be welded. It can avoid the self-weight of the electric welding machine connecting wire 4 pulling the free end of the conductive component away from the surface of the workpiece to be welded during use, resulting in poor grounding and inability to work properly. At the same time, it can also avoid damage to the free end of the conductive component. The welding machine grounding device of the present application has a simple structure, is relatively easy to implement, and has a relatively low cost and is easy to use.

[0036] Furthermore, the fixed base 1 further has a third adsorption portion 5 and a fourth adsorption portion 6. The third adsorption portion 5 has a third adsorption surface, and the angle formed by the third adsorption surface and the first adsorption surface is a first preset angle. The fourth adsorption portion 6 has a fourth adsorption surface, and the angle formed by the fourth adsorption surface and the second adsorption surface is a second preset angle. Both the first preset angle and the second preset angle are between 90 degrees and 120 degrees.

[0037] Specifically, a third adsorption portion 5 and a fourth adsorption portion 6 are further provided on the fixed base 1. As Figure 2 shown, the third adsorption portion 5 forms a third plane, the fourth adsorption portion 6 forms a fourth plane, and the third plane and the fourth plane are in the same plane. The angle formed by the third adsorption surface and the first adsorption surface is a first preset angle, and the angle formed by the fourth adsorption surface and the second adsorption surface is a second preset angle. Moreover, the first preset angle and the second preset angle are equal and both are between 90 degrees and 120 degrees.

[0038] By providing the third adsorption surface and the fourth adsorption surface in this application, the stability of the fixed base 1 and the welding position on the surface of the workpiece to be welded can be further increased.

[0039] Furthermore, the welding machine grounding device further includes: a bearing portion, which is provided on the fixed base 1 and is used for bearing the conductive component, so that the conductive component is installed on the fixed base 1 through the bearing portion.

[0040] Specifically, the welding machine grounding device of this application further includes a bearing portion. The bearing portion is provided on the fixed base 1 and is used for bearing the conductive component, so that the conductive component is installed on the fixed base 1 through the bearing portion. By providing the bearing portion, the connection stability between the conductive component and the fixed base 1 can be increased, and the risk that the conductive component may fall off when directly installed on the fixed base 1 can be avoided.

[0041] Furthermore, the bearing portion includes: a first mounting plate 7, and the first mounting plate 7 is detachably mounted on the fixed base 1;

[0042] a second mounting plate 8, one end of the second mounting plate 8 is connected to the first mounting plate 7, and the other end of the second mounting plate 8 extends in a direction away from the fixed base 1, and the conductive component is detachably mounted on the second mounting plate 8.

[0043] Specifically, the bearing part includes a first mounting plate 7 that can be detachably connected to the fixed base 1. The size of the first mounting plate 7 is the same as the surface size of the fixed base 1 it is connected to. The first mounting plate 7 is fixed to the fixed base 1 by using bolts. The bearing part also includes a second mounting plate 8. One end of the second mounting plate 8 is connected to the first mounting plate 7. The first mounting plate 7 and the second mounting plate 8 form an L-shaped bearing part, and the first mounting plate 7 and the second mounting plate 8 can be integrally formed, which can ensure that the conductive component will not be separated from the fixed base 1 during the working process. The other end of the second mounting plate 8 extends in a direction away from the fixed base 1 and forms a protruding mounting part, and the conductive component is detachably mounted on the second mounting plate 8.

[0044] Furthermore, the second mounting plate 8 is provided with mounting holes;

[0045] The conductive component includes: a conductor 9 that is movably arranged in the mounting hole and is movably arranged along the axis direction of the mounting hole;

[0046] An elastic member 10. The elastic member 10 is sleeved outside the conductor 9. One end of the elastic member 10 is connected to the second mounting plate 8, and the other end of the elastic member 10 is connected to the conductor 9 to reset the conductor 9 under the action of the elastic member 10 when the conductor 9 compresses the elastic member 10.

[0047] Specifically, the second mounting plate 8 is provided with mounting holes. The conductive component includes a conductor 9 movably disposed in the mounting holes, that is, the conductor 9 can move in the mounting holes along the axial extension direction of the mounting holes. An outer wall of the conductor 9 is fixedly connected to an inner wall of a first mounting seat 13. The first mounting seat 13 includes a first part and a second part. A diameter of the first part is larger than that of the second part. One end of an elastic member 10 is sleeved outside the first part and abuts against a surface of the second part relatively close to the first part. One end of the elastic member 10 is fixedly connected to the conductor 9 through the first mounting seat 13. The other end of the elastic member 10 is connected to the second mounting plate 8 through a second mounting seat. The second mounting seat includes a third part and a fourth part. The third part is disposed in the mounting hole and fixedly connected to the mounting hole. The other end of the elastic member 10 is sleeved outside the fourth part and abuts against a surface of the second mounting plate 8 relatively close to the first mounting plate 7. When in use, when the fixed base 1 is adsorbed on the surface to be welded of the workpiece to be welded through the first adsorption part 2, the second adsorption part 3, the third adsorption part 5 and the fourth adsorption part 6, the conductor 9 moves in a direction close to the second mounting plate 8 under the action of the workpiece to be welded. Since the conductor 9 is fixedly connected to the first mounting seat 13, the elastic member 10 moves in a direction close to the second mounting plate 8 under the action of the first mounting seat 13 and the conductor 9. At this time, the elastic member 10 is in a compressed state. By providing the elastic member 10, it can be ensured that during the welding process, the conductor 9 will not be separated from the workpiece to be welded, and it can be ensured that the conductor 9 and the workpiece to be welded are always in contact with each other. When welding is not required, after separating the fixed base 1 from the workpiece to be welded, the conductor 9 and the first mounting seat 13 can return to the original position of the elastic member 10 under the action of the elastic member 10. Among them, the elastic member 10 used in this embodiment is a spring.

[0048] Further, the conductive component further includes: a wire 11. One end of the wire 11 is connected to the conductor 9, and the other end of the wire 11 is connected to the welding machine connection wire 4, for conducting the welding machine connection wire 4 and the conductor 9, so that the current generated by the welding machine sequentially passes through the welding machine connection wire 4, the wire 11 and the conductor 9 and is transmitted to the surface of the workpiece to be welded to complete the welding operation.

[0049] Specifically, the conductive component includes a wire 11. The wire 11 is made of a flexible material. One end of the wire 11 is connected to an end of the conductor 9 away from the second mounting plate 8, for connecting the welding machine connection wire 4 and the conductor 9, so that the current generated by the welding machine can sequentially pass through the welding connection wire, the wire 11 and the conductor 9 and be transmitted to the surface of the workpiece to be welded to complete the welding operation of the workpiece to be welded.

[0050] Further, the conductive component further includes: a locking member 12;

[0051] The fastening threaded hole is provided on the second mounting plate 8;

[0052] A through hole is provided at one end of the wire 11 and the welding machine connecting wire 4. The end of the locking member 12 sequentially passes through the through hole and the fastening threaded hole to fix the wire 11 and the welding machine connecting wire 4 on the second mounting plate 8.

[0053] Specifically, the conductive component further includes a locking member 12. A fastening threaded hole is also provided on the second mounting plate 8. The fastening threaded hole and the mounting hole can be on the same straight line on the second mounting plate 8. Through holes are provided at the ends of the welding machine connecting wire 4 and the wire 11 that are close to each other. The end of the locking member 12 sequentially passes through the through holes on the welding machine connecting wire 4 and the wire 11 and the fastening threaded hole, enabling the welding machine connecting wire 4 and the wire 11 to be fixed on the second mounting plate 8.

[0054] By using the fastening member, it can be ensured that the wire 11 and the welding machine connecting wire 4 are always fixed on the second mounting plate 8, and it is a detachable method.

[0055] Furthermore, the material of the bearing part is any one of polyoxymethylene, bakelite, phenolic resin, and silicone resin.

[0056] Specifically, the material of the bearing part needs to be selected as a material with high insulation, which can be any one of polyoxymethylene, bakelite, phenolic resin, and silicone resin.

[0057] Furthermore, conductive silver paste is coated at the connection between the wire 11 and the welding machine connecting wire 4 and at the connection between the wire 11 and the conductor 9.

[0058] Specifically, conductive silver paste is coated at the connection between the wire 11 and the welding machine connecting wire 4 and at the connection between the wire 11 and the conductor 9, which can enhance conductivity, improve the efficiency and stability of current transmission. In addition, the conductive silver paste can also connect the tiny gaps and irregular surfaces at the filling place, increase the contact area, thereby reducing the contact resistance and the possibility of loosening, improving the reliability and durability of the connection. In addition, the presence of the conductive silver paste can form a protective film at the connection, preventing oxygen, moisture, and other corrosive substances from eroding the metal, and extending the service life of the wire connection.

[0059] Furthermore, the welding machine welding grounding device further includes:

[0060] The magnetic attracting part 14 is arranged between the first attracting part 2 and the second attracting part 3. The magnetic attracting part 14 is used for attracting the debris generated during the welding operation.

[0061] Specifically, a magnetic attracting part 14 is further provided between the first adsorption part 2 and the second adsorption part 3. When the switch of the fixed base 1 is turned on, the magnetic attracting part 14 can adsorb the debris generated during the welding process, and after the switch of the fixed base 1 is turned off, the debris adsorbed by the magnetic attracting part 14 can be cleaned up to ensure the reliable adsorption of the fixed base 1 during long-term use.

[0062] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: By providing the first adsorption part 2 and the second adsorption part 3 that can cross each other, and the third adsorption part 5 and the fourth adsorption part 6 on the fixed base 1, the contact area between the fixed base 1 and the welding position on the workpiece to be welded can be increased, thereby increasing the stability between the fixed base 1 and the workpiece to be welded. It can avoid the self-weight of the welding machine connecting wire 4 pulling the free end of the conductive component away from the surface of the workpiece to be welded during use, resulting in poor grounding and inability to work properly. At the same time, it can also avoid damage to the free end of the conductive component. The welding grounding device of the present application has a simple structure, is relatively easy to implement, and has a relatively low cost and is easy to use. At the same time, by providing the elastic member 10, it can be ensured that during use, the conductor 9 can always abut against the welding position of the workpiece to be welded, avoiding the separation of the conductor 9 from the workpiece to be welded during use. After use, the conductor 9 can return to its original position under the action of the elastic member 10.

[0063] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0065] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0066] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations should be made for the spatial relative descriptions used here.

[0067] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it cannot be understood as a limitation on the protection scope of the present utility model.

[0068] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding grounding device for a welding machine, characterized in that: include: A fixed base (1), wherein a first adsorption portion (2) and a second adsorption portion (3) are provided on the fixed base (1), wherein the first adsorption portion (2) has a first adsorption surface, and the second adsorption portion (3) has a second adsorption surface, and the first adsorption surface and the second adsorption surface are both used for adsorption connection with a workpiece to be welded, so as to fix the fixed base (1) to the workpiece to be welded; the plane where the first adsorption surface is located is arranged to intersect with the plane where the second adsorption surface is located, so that a receiving space for receiving the to-be-connected position of the workpiece to be welded is formed between the first adsorption surface and the second adsorption surface; An electric welding machine connection line (4), the electric welding machine connection line (4) being arranged on the fixed base (1), the electric welding machine connection line (4) being used to be connected to an electric welding machine, and the electric welding machine being used to transmit the generated current to the electric welding machine connection line (4); A conductive component is mounted on the fixed base (1), the free end of the conductive component is used to abut against the surface of the workpiece to be welded, and the electric welding machine connecting line (4) is connected to the conductive component to transmit the current to the surface of the workpiece to be welded through the conductive component to complete the welding operation.

2. The welding grounding device of the welding machine according to claim 1, characterized in that: The fixed base (1) further comprises a third adsorption portion (5) and a fourth adsorption portion (6); the third adsorption portion (5) comprises a third adsorption surface; the angle formed by the third adsorption surface and the first adsorption surface is a first preset angle; the fourth adsorption portion (6) comprises a fourth adsorption surface; the angle formed by the fourth adsorption surface and the second adsorption surface is a second preset angle; the first preset angle and the second preset angle are both between 90 degrees and 120 degrees.

3. The welding grounding device of the welding machine according to claim 2, characterized in that: The welding grounding device of the welding machine also includes: A bearing portion, the bearing portion is arranged on the fixed base (1), and the bearing portion is used to bear the conductive component, so that the conductive component is mounted on the fixed base (1) through the bearing portion.

4. The welding grounding device of the welding machine according to claim 3, characterized in that: The bearing portion comprises: A first mounting plate (7), the first mounting plate (7) being detachably mounted on the fixed base (1); A second mounting plate (8), one end of the second mounting plate (8) is connected to the first mounting plate (7), the other end of the second mounting plate (8) extends in a direction away from the fixed base (1), and the conductive component is detachably mounted on the second mounting plate (8).

5. The welding grounding device for a welding machine according to claim 4, characterized in that: The second mounting plate (8) is provided with a mounting hole; The conductive component comprises: The conductor (9) is movably arranged in the mounting hole and movably arranged along the axial direction of the mounting hole; An elastic member (10), wherein the elastic member (10) is sleeved on the outside of the conductor (9), one end of the elastic member (10) is connected to the second mounting plate (8), and the other end of the elastic member (10) is connected to the conductor (9), so that the elastic member (10) is compressed by the conductor (9) and reset under the action of the elastic member (10).

6. The welding grounding device for a welding machine according to claim 5, characterized in that: The conductive component also includes: A wire (11), one end of which is connected to the conductor (9), and the other end of which is connected to the electric welding machine connecting wire (4), for conducting the electric welding machine connecting wire (4) with the conductor (9), so that the current generated by the electric welding machine is transmitted to the surface of the workpiece to be welded through the electric welding machine connecting wire (4), the wire (11) and the conductor (9) in sequence, so as to complete the welding operation.

7. The welding grounding device of the welding machine according to claim 6, characterized in that: The conductive component also includes: A locking member (12); A fastening threaded hole, wherein the fastening threaded hole is arranged on the second mounting plate (8); A through hole is provided at one end of the wire (11) and the welding machine connecting wire (4), and the end of the locking component (12) passes through the through hole and the fastening threaded hole in sequence to fix the wire (11) and the welding machine connecting wire (4) on the second mounting plate (8).

8. The welding grounding device for a welding machine according to claim 3, characterized in that: The material of the bearing part is any one of polyformaldehyde, bakelite, phenolic resin and silicone resin.

9. The welding grounding device of the welding machine according to claim 6, characterized in that: Conductive silver paste is applied at the connection point between the wire (11) and the welding machine connecting wire (4) and at the connection point between the wire (11) and the conductor (9).

10. The welding grounding device for a welding machine according to claim 1, characterized in that: The welding grounding device of the welding machine also includes: A magnetic attraction portion (14), wherein the magnetic attraction portion (14) is arranged between the first adsorption portion (2) and the second adsorption portion (3), and the magnetic attraction portion (14) is used to adsorb debris generated during welding operation.

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