Grounding device, welding robot and welding equipment

Abstract

The utility model discloses a grounding device, a welding robot and welding equipment, and belongs to the technical field of welding grounding. The grounding device comprises a support, a connecting assembly, a magnetic attraction assembly and a grounding assembly. The connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is rotationally connected with one end of the support, and the second connecting piece is rotationally connected with the other end of the support; the magnetic attraction assembly comprises a first magnetic attraction piece and a second magnetic attraction piece, the first magnetic attraction piece is arranged at the end, away from the support, of the first connecting piece, and the second magnetic attraction piece is arranged at the end, away from the support, of the second connecting piece; the grounding assembly is arranged on the support, located between the first connecting piece and the second connecting piece and used for making contact with the workpiece to be welded. According to the grounding device provided by the invention, the angles of the first magnetic attraction piece and the second magnetic attraction piece are adjusted to adapt to different metal surfaces, so that the grounding device can be stably attracted to the to-be-welded workpiece with the flat or non-flat metal surface, and the application range of the grounding device is effectively expanded.

Description

Technical Field

[0001] The present application relates to the technical field of welding grounding, and in particular to a grounding device, a welding robot and welding equipment. Background Art

[0002] The ground connection during the welding process is one of the important links to ensure the safe and reliable operation of welding equipment. Magnetic grounding connection technology is a common ground connection method for welding. It uses the adsorption force of the magnetic suction cup to fix the grounding clamp on the welding workpiece, thereby realizing the grounding of the welding equipment. Since there is no need for clamps or bolt fixing methods, or even the most complicated welding fixing methods, the grounding clamp can be quickly fixed to the welding workpiece, saving installation and disassembly time, and has the advantages of easy installation and simple operation. However, conventional magnetic grounding connections are only suitable for flat and smooth metal surfaces. For welding workpieces with uneven metal surfaces, the magnetic suction cup may not be able to effectively fix the grounding clamp. Market research has found that conventional magnetic conductive devices for welding are all small current and cannot be used in high current welding scenarios. Because of the small contact area, poor conductivity will occur and local heating will occur, which will cause damage to the conductive contact parts of the device and greatly reduce the service life of the device. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide a grounding device, a welding robot and welding equipment.

[0004] To solve the above technical problems, this application provides:

[0005] A grounding device, comprising:

[0006] Bracket;

[0007] A connecting assembly, the connecting assembly comprising a first connecting member and a second connecting member, the first connecting member being rotatably connected to one end of the bracket, and the second connecting member being rotatably connected to the other end of the bracket;

[0008] A magnetic attraction component, the magnetic attraction component comprising a first magnetic attraction component and a second magnetic attraction component, the first magnetic attraction component is arranged at an end of the first connecting component away from the bracket, and the second magnetic attraction component is arranged at an end of the second connecting component away from the bracket;

[0009] A grounding component is disposed on the bracket and located between the first connecting member and the second connecting member, and is used for contacting a workpiece to be welded.

[0010] In addition, the grounding device according to the present application may also have the following additional technical features:

[0011] In some embodiments of the present application, the grounding component is rotatably connected to a side of the bracket close to the workpiece to be welded.

[0012] In some embodiments of the present application, the grounding assembly includes a fixing member and a grounding member, the fixing member is rotatably connected to a side of the bracket close to the workpiece to be welded, the grounding member is sleeved on the fixing member and threadedly connected to the fixing member, and the end of the grounding member away from the bracket is used to contact the workpiece to be welded.

[0013] In some embodiments of the present application, the grounding member includes an adjusting portion and a flexible grounding portion, the adjusting portion is sleeved on the fixing member and threadedly connected to the fixing member, and the flexible grounding portion is arranged at one end of the adjusting portion away from the bracket.

[0014] In some embodiments of the present application, the flexible grounding portion includes a plurality of flexible conductive wires, which are arranged at intervals along the circumference of the adjusting portion, one end of the flexible conductive wire is connected to the adjusting portion, and the other end is inclined toward the workpiece to be welded along the axial direction away from the adjusting portion.

[0015] In some embodiments of the present application, a first limiting portion is provided at one end of the bracket, the first connecting member is provided with a second limiting portion that cooperates with the first limiting portion, a third limiting portion is provided at the other end of the bracket, and the second connecting member is provided with a fourth limiting portion that cooperates with the third limiting portion.

[0016] In some embodiments of the present application, the grounding device also includes an insulating component, which includes a first insulating member and a second insulating member, the first insulating member is connected between the first connecting member and the first magnetic member, and the second insulating member is connected between the second connecting member and the second magnetic member.

[0017] In some embodiments of the present application, the grounding device further includes a grounding wire, the bracket is provided with a wiring hole adapted to the grounding wire, and is provided with a handle position.

[0018] In a second aspect, the present application also provides a welding robot, comprising the grounding device described in any of the above embodiments.

[0019] In a third aspect, the present application also provides a welding device, including a welding operating platform and the welding robot described in the above embodiments.

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] The present application proposes a grounding device, which sets a grounding component on a bracket and is located between a first connector and a second connector. When the grounding device is installed on the workpiece to be welded through a magnetic suction component, the grounding component contacts the workpiece to be welded to achieve grounding, and the grounding device is firmly installed on the workpiece to be welded by using magnetic suction force, thereby ensuring good contact between the grounding component and the workpiece to be welded, achieving a good grounding effect, and the grounding device can be quickly assembled and disassembled, and the welding efficiency is significantly improved. In addition, the grounding component also greatly increases the contact area with the workpiece to be welded, which is suitable for high-current welding scenarios.

[0022] By rotatably connecting the first connecting member to one end of the bracket and setting the first magnetic member at the end of the first connecting member away from the bracket, the first magnetic member can be synchronously rotated relative to the bracket following the first connecting member, so that the angle of the first magnetic member can be adjusted. At the same time, by rotatably connecting the second connecting member to the other end of the bracket and setting the second magnetic member at the end of the second connecting member away from the bracket, the second magnetic member can be synchronously rotated relative to the bracket following the second connecting member, so that the angle of the second magnetic member can be adjusted. In this way, by adjusting the angles of the first magnetic member and the second magnetic member to adapt to different metal surfaces, the grounding device can be firmly adsorbed on the workpiece to be welded with a flat or uneven metal surface, effectively expanding the scope of application of the grounding device, and can be quickly installed on the workpiece to be welded or quickly removed from the welded workpiece, saving installation and disassembly time, and is easy to install and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional schematic diagram of a grounding device and a workpiece to be welded in some embodiments of the present application is shown;

[0025] Figure 2 A three-dimensional schematic diagram of a bracket in some embodiments of the present application is shown;

[0026] Figure 3 A three-dimensional schematic diagram of a grounding assembly in some embodiments of the present application is shown;

[0027] Figure 4 A three-dimensional schematic diagram of a first connecting member, a first insulating member, and a first magnetic attraction member in some embodiments of the present application is shown;

[0028] Figure 5 Schematic diagram showing the application scenarios of the grounding device in some embodiments of the present application Figure 1 ;

[0029] Figure 6 Schematic diagram showing the application scenarios of the grounding device in some embodiments of the present application Figure 2 ;

[0030] Figure 7 Schematic diagram showing the application scenarios of the grounding device in some embodiments of the present application Figure 3 ;

[0031] Figure 8 Schematic diagram showing the application scenarios of the grounding device in some embodiments of the present application Figure 4 .

[0032] Description of main component symbols:

[0033] 100-grounding device; 110-bracket; 111-first limiting portion; 112-third limiting portion; 113-wiring hole; 114-handle position; 120-connecting assembly; 121-first connecting member; 1211-second limiting portion; 122-second connecting member; 130-magnetic assembly; 131-first magnetic member; 132-second magnetic member; 140-grounding assembly; 141-fixing member; 142-grounding member; 1421-adjusting portion; 1422-flexible grounding portion; 14221-flexible conductive wire; 150-insulating assembly; 151-first insulating member; 200-workpiece to be welded. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] like Figure 1 As shown, the embodiment of the present application provides a grounding device 100, which is mainly used in welding robots, and welding robots are mainly used in welding equipment. The grounding device 100 includes a bracket 110, a connecting component 120, a magnetic attraction component 130 and a grounding component 140.

[0040] See also Figures 5 to 8 , wherein the connecting assembly 120 includes a first connecting member 121 and a second connecting member 122 , the first connecting member 121 is rotatably connected to one end of the bracket 110 , and the second connecting member 122 is rotatably connected to the other end of the bracket 110 .

[0041] The magnetic attraction assembly 130 includes a first magnetic attraction member 131 and a second magnetic attraction member 132. The first magnetic attraction member 131 is disposed at one end of the first connecting member 121 away from the bracket 110, and the second magnetic attraction member 132 is disposed at one end of the second connecting member 122 away from the bracket 110. The grounding assembly 140 is disposed on the bracket 110 and is located between the first connecting member 121 and the second connecting member 122, and is used to contact the workpiece 200 to be welded.

[0042] The grounding device 100 provided in the embodiment of the present application is provided with a grounding component 140 disposed on the bracket 110 and located between the first connecting member 121 and the second connecting member 122. When the grounding device 100 is installed on the workpiece 200 to be welded through the magnetic suction component 130, the grounding component 140 contacts the workpiece 200 to be welded to achieve grounding, and the grounding device 100 is firmly installed on the workpiece 200 to be welded by using the magnetic suction force, thereby ensuring good contact between the grounding component 140 and the workpiece 200 to be welded, achieving a good grounding effect, and the grounding device 100 is fast to assemble and disassemble, and the welding efficiency is significantly improved. In addition, the grounding component 140 also greatly increases the contact area with the workpiece 200 to be welded, which is suitable for high-current welding scenarios.

[0043] By rotatably connecting the first connecting member 121 to one end of the bracket 110 and arranging the first magnetic member 131 at the end of the first connecting member 121 away from the bracket 110, the first magnetic member 131 can follow the first connecting member 121 to rotate synchronously relative to the bracket 110, so that the angle of the first magnetic member 131 can be adjusted. At the same time, by rotatably connecting the second connecting member 122 to the other end of the bracket 110 and arranging the second magnetic member 132 at the end of the second connecting member 122 away from the bracket 110, the second magnetic member 132 can follow the second connecting member 122 to rotate synchronously relative to the bracket 110, so that the angle of the second magnetic member 132 can be adjusted.

[0044] In this way, by adjusting the angles of the first magnetic component 131 and the second magnetic component 132 to adapt to different metal surfaces, the grounding device 100 can be firmly adsorbed on the workpiece 200 to be welded with a flat or uneven metal surface, effectively expanding the scope of application of the grounding device 100, and can be quickly installed on the workpiece 200 to be welded or quickly removed from the welded workpiece, saving installation and disassembly time, and is easy to install and simple to operate.

[0045] Exemplarily, the bracket 110, the first connecting member 121, the second connecting member 122 and the grounding component 140 can all be made of metal conductive materials, the first magnetic member 131 and the second magnetic member 132 can both be permanent magnets, and the material of the workpiece 200 to be welded can be steel, aluminum alloy, etc.

[0046] The first connecting member 121 may be rotatably connected to one end of the bracket 110 by hinge, and the second connecting member 122 may be rotatably connected to the other end of the bracket 110 by hinge. The first magnetic member 131 may be connected to the first connecting member 121 by snap-fitting or integrally formed, and the second magnetic member 132 may be connected to the second connecting member 122 by snap-fitting or integrally formed. The grounding component 140 may be connected to the bracket 110 by welding, hinge or integrally formed.

[0047] like Figure 1 and Figure 3 As shown, in one embodiment of the present application, optionally, the grounding assembly 140 is rotatably connected to a side of the bracket 110 close to the workpiece 200 to be welded.

[0048] In this embodiment, the grounding component 140 is rotatably connected to the side of the bracket 110 close to the workpiece 200 to be welded, so that the angle of the grounding component 140 can be adjusted. By adjusting the angle of the grounding component 140 to adapt to different metal surfaces, the contact area between the grounding component 140 and different metal surfaces is guaranteed, so that the grounding component 140 can have good contact with the workpiece 200 to be welded with a flat or uneven metal surface, thereby achieving a good grounding effect.

[0049] For example, the grounding assembly 140 and the side of the bracket 110 close to the workpiece 200 to be welded may be rotatably connected by hinge.

[0050] like Figure 1 and Figure 3 As shown, in the above-mentioned embodiment of the present application, optionally, the grounding assembly 140 includes a fixing member 141 and a grounding member 142, the fixing member 141 is rotatably connected to a side of the bracket 110 close to the workpiece 200 to be welded, the grounding member 142 is sleeved on the fixing member 141 and threadedly connected to the fixing member 141, and the end of the grounding member 142 away from the bracket 110 is used to contact the workpiece 200 to be welded.

[0051] In this embodiment, the fixing member 141 is connected to the side of the bracket 110 close to the workpiece 200 to be welded by rotation, and the rotation connection can be hinged, and the grounding member 142 is sleeved on the fixing member 141, so that the grounding member 142 can follow the fixing member 141 to rotate relative to the bracket 110 synchronously, so that the angle of the grounding member 142 can be adjusted to adapt to different metal surfaces, and the contact area between the grounding member 142 and different metal surfaces is guaranteed to achieve a good grounding effect. At the same time, the grounding member 142 is connected to the fixing member 141 by threading, so that the grounding member 142 can move relative to the fixing member 141 along the axis direction of the fixing member 141, so that the distance between the grounding member 142 and the workpiece 200 to be welded can be adjusted to further adapt to different metal surfaces, further guarantee the contact area between the grounding member 142 and different metal surfaces, and further improve the grounding effect.

[0052] Exemplarily, both the fixing member 141 and the grounding member 142 can be made of a metal conductive material, the grounding member 142 is provided with an internal thread, and the fixing member 141 is provided with an external thread matching the internal thread.

[0053] like Figure 1 and Figure 3 As shown, in the above-mentioned embodiment of the present application, optionally, the grounding member 142 includes an adjusting portion 1421 and a flexible grounding portion 1422, the adjusting portion 1421 is sleeved on the fixing member 141 and threadedly connected to the fixing member 141, and the flexible grounding portion 1422 is arranged at one end of the adjusting portion 1421 away from the bracket 110.

[0054] In this embodiment, the adjusting portion 1421 is sleeved on the fixing member 141 and threadedly connected to the fixing member 141, and the flexible grounding portion 1422 is arranged at the end of the adjusting portion 1421 away from the bracket 110, so that the flexible grounding portion 1422 can move synchronously with the adjusting portion 1421 relative to the fixing member 141, so that the distance between the flexible grounding portion 1422 and the workpiece 200 to be welded can be adjusted to adapt to different metal surfaces, thereby ensuring the contact area and contact stability of the flexible grounding portion 1422 with different metal surfaces, and achieving a good grounding effect.

[0055] By setting the flexible grounding portion 1422 to be a flexible material, when the flexible grounding portion 1422 is pressed against the surface of the workpiece 200 to be welded, the flexible grounding portion 1422 can generate a restoring elastic force, so that the flexible grounding portion 1422 can be stably pressed against the surface of the workpiece 200 to be welded under the action of the restoring elastic force, thereby ensuring the contact stability, wear resistance and durability between the two.

[0056] Exemplarily, the adjusting part 1421 and the flexible grounding part 1422 can both be made of metal conductive material, the adjusting part 1421 is provided with an internal thread, and the fixing part 141 is provided with an external thread matching the internal thread, and the connection between the flexible grounding part 1422 and the adjusting part 1421 can be made by welding, clamping or integral molding.

[0057] like Figure 1 and Figure 3 As shown, in the above-mentioned embodiment of the present application, optionally, the flexible grounding portion 1422 includes a plurality of flexible conductive wires 14221, and the plurality of flexible conductive wires 14221 are arranged at intervals along the circumference of the adjustment portion 1421, one end of the flexible conductive wire 14221 is connected to the adjustment portion 1421, and the other end is inclined toward the workpiece 200 to be welded along the axial direction away from the adjustment portion 1421.

[0058] In this embodiment, a plurality of flexible conductive wires 14221 are arranged at intervals along the circumference of the adjustment portion 1421, and one end of the flexible conductive wire 14221 is connected to the adjustment portion 1421, and the other end is arranged obliquely toward the workpiece 200 to be welded along the axial direction away from the adjustment portion 1421. In this way, on the one hand, the flexible grounding portion 1422 has a good reset elastic force, so that the flexible grounding portion 1422 can be stably pressed against the surface of the workpiece 200 to be welded under the action of the reset elastic force, thereby ensuring the contact stability, wear resistance and durability between the two. On the other hand, the contact area between the flexible grounding portion 1422 and the surface of the workpiece 200 to be welded can also be guaranteed, achieving a good grounding effect, greatly increasing the contact area with the workpiece 200 to be welded, and being suitable for high-current welding scenarios.

[0059] Exemplarily, the flexible conductive wire 14221 may be a flexible conductive copper wire.

[0060] like Figure 1 and Figure 4 As shown, in any of the above embodiments of the present application, optionally, a first limiting portion 111 is provided at one end of the bracket 110, the first connecting member 121 is provided with a second limiting portion 1211 that cooperates with the first limiting portion 111, and a third limiting portion 112 is provided at the other end of the bracket 110, and the second connecting member 122 is provided with a fourth limiting portion that cooperates with the third limiting portion 112.

[0061] In this embodiment, a first limiting portion 111 is provided at one end of the bracket 110, and a second limiting portion 1211 is provided on the first connecting member 121 to cooperate with the first limiting portion 111, so that the rotation of the first connecting member 121 is limited by the first limiting portion 111 and the second limiting portion 1211, thereby preventing the first magnetic member 131 from deviating from the workpiece 200 to be welded due to an excessive rotation angle range and affecting the magnetic fixation between the two.

[0062] At the same time, by setting a third limiting portion 112 at the other end of the bracket 110, and setting a fourth limiting portion matching the third limiting portion 112 on the second connecting member 122, the rotation of the second connecting member 122 is limited by the third limiting portion 112 and the fourth limiting portion, so as to avoid the second magnetic member 132 deviating from the workpiece 200 to be welded due to too large a rotation angle range and affecting the magnetic fixation between the two.

[0063] like Figure 1 and Figure 4 As shown, in any of the above embodiments of the present application, optionally, the grounding device 100 also includes an insulating component 150, and the insulating component 150 includes a first insulating member 151 and a second insulating member, the first insulating member 151 is connected between the first connecting member 121 and the first magnetic member 131, and the second insulating member is connected between the second connecting member 122 and the second magnetic member 132.

[0064] In this embodiment, a first insulating member 151 is provided between the first connecting member 121 and the first magnetic member 131 to play an insulating and isolating role, so that the current is only conducted to the workpiece 200 to be welded through the grounding component 140, and a good grounding effect is achieved. At the same time, a second insulating member is provided between the second connecting member 122 and the second magnetic member 132 to play an insulating and isolating role, so that the current is only conducted to the workpiece 200 to be welded through the grounding component 140, and a good grounding effect is achieved, thereby avoiding the problem of direct conduction and heat generation of the magnet, which leads to thermal demagnetization of the magnetic member.

[0065] Exemplarily, both the first insulating member 151 and the second insulating member may be insulating gaskets.

[0066] like Figure 1 and Figure 2 As shown, in any of the above embodiments of the present application, optionally, the grounding device 100 also includes a grounding wire, and the bracket 110 is provided with a wiring hole 113 adapted to the grounding wire and a handle position 114.

[0067] In this embodiment, by providing a wiring hole 113 adapted to the grounding wire on the bracket 110, the welding robot can be connected to the grounding device 100 through the grounding wire, and then connected to the workpiece 200 to be welded through the grounding device 100, so as to achieve grounding of the welding robot and ensure the safety and stability of the welding robot. By providing a handle position 114 on the bracket 110, it is convenient for the staff to quickly install the grounding device 100 as a whole on the workpiece 200 to be welded or quickly remove it from the workpiece 200 to be welded through the handle position 114, thereby improving the convenience of installation and removal.

[0068] The embodiment of the present application further provides a welding robot, comprising the grounding device 100 described in the above embodiment.

[0069] The welding robot has the grounding device 100 in any of the above embodiments, and thus has all the beneficial effects of the grounding device 100, which will not be described in detail here.

[0070] An embodiment of the present application also provides a welding device, including a welding operation platform and the welding robot described in the above embodiments.

[0071] Among them, the welding operation platform is used to place the welding robot to provide a space platform for the welding robot to operate.

[0072] The welding device has the welding robot in the above embodiment, and thus has all the beneficial effects of the welding robot, which will not be described in detail here.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A grounding device, characterized in that: include: Bracket; A connecting assembly, the connecting assembly comprising a first connecting member and a second connecting member, the first connecting member being rotatably connected to one end of the bracket, and the second connecting member being rotatably connected to the other end of the bracket; A magnetic attraction component, the magnetic attraction component comprising a first magnetic attraction component and a second magnetic attraction component, the first magnetic attraction component is arranged at an end of the first connecting component away from the bracket, and the second magnetic attraction component is arranged at an end of the second connecting component away from the bracket; A grounding component is disposed on the bracket and located between the first connecting member and the second connecting member, and is used for contacting a workpiece to be welded.

2. The grounding device according to claim 1, characterized in that: The grounding component is rotatably connected to a side of the bracket close to the workpiece to be welded.

3. The grounding device according to claim 2, characterized in that: The grounding assembly includes a fixing part and a grounding part. The fixing part is rotatably connected to a side of the bracket close to the workpiece to be welded. The grounding part is sleeved on the fixing part and threadedly connected to the fixing part. The end of the grounding part away from the bracket is used to contact the workpiece to be welded.

4. The grounding device according to claim 3, characterized in that: The grounding member comprises an adjusting portion and a flexible grounding portion. The adjusting portion is sleeved on the fixing member and threadedly connected with the fixing member. The flexible grounding portion is arranged at one end of the adjusting portion away from the bracket.

5. The grounding device according to claim 4, characterized in that: The flexible grounding portion includes a plurality of flexible conductive wires, which are arranged at intervals along the circumference of the adjusting portion. One end of the flexible conductive wire is connected to the adjusting portion, and the other end is inclined toward the workpiece to be welded along an axial direction away from the adjusting portion.

6. The grounding device according to any one of claims 1 to 5, characterized in that: A first limiting portion is provided at one end of the bracket, the first connecting member is provided with a second limiting portion matched with the first limiting portion, a third limiting portion is provided at the other end of the bracket, and the second connecting member is provided with a fourth limiting portion matched with the third limiting portion.

7. The grounding device according to any one of claims 1 to 5, characterized in that: The grounding device further includes an insulating component, which includes a first insulating member and a second insulating member, wherein the first insulating member is connected between the first connecting member and the first magnetic member, and the second insulating member is connected between the second connecting member and the second magnetic member.

8. The grounding device according to any one of claims 1 to 5, characterized in that: The grounding device also includes a grounding wire. The bracket is provided with a wiring hole adapted to the grounding wire and a handle position.

9. A welding robot, characterized in that: A grounding device comprising the grounding device according to any one of claims 1 to 8.

10. A welding device, characterized in that: It comprises a welding operation platform and the welding robot described in claim 9.

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