A conductive friction ring for a welding roller on a resistance welding device

Abstract

The present invention relates to the technical field of conductive slip rings, and discloses a conductive friction ring for a welding roller on a resistance welding device, comprising a slip ring, a bracket, a brush holder and a brush arranged on the brush holder, wherein a ring plate is arranged on the rear side of the slip ring, and the ring plate is fixedly mounted on the bracket. The present invention can adjust the position of the slip ring so as to ensure that the entire surface of the slip ring can be used and the slip ring can be fully utilized, and clean the contact surface between the slip ring and the brush before use, so that the slip ring is not hindered by the accumulated copper chips when moving relative to the brush, so that the position of the slip ring can be adjusted more smoothly, and then the contact surface between the slip ring and the brush can be adjusted better, and the brush and the slip ring can be separated before the slip ring is reset, so that when the slip ring is reset, the friction between the copper chips and the brush will not affect its reset speed, thereby ensuring the degree of vibration generated when the clapper hits the carrier plate, and then ensuring that the copper chips on the surface of the slip ring can be cleaned.

Description

Technical Field

[0001] The invention belongs to the technical field of conductive slip rings, and in particular relates to a conductive friction ring used for a welding roller on a resistance welding device. Background Art

[0002] Conductive slip ring belongs to the application category of electrical contact sliding connection. It is also called collector ring, or rotary joint, rotary electrical interface, slip ring, collector ring, collector ring, coil, commutator, adapter. It is a precision power transmission device that realizes the image, data signal and power transmission of two relative rotating mechanisms. It is particularly suitable for applications with unlimited continuous rotation and the need to transmit power or data from a fixed position to a rotating position.

[0003] When the existing conductive slip ring is in use, the contact surface between the conductive slip ring and the brush is fixed, so that the contact surface of the entire conductive slip ring cannot be fully utilized during use, resulting in waste.

[0004] Therefore, it is necessary to invent a conductive friction ring for a welding roller on a resistance welding device to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a conductive friction ring for a welding roller on a resistance welding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a conductive friction ring for a welding roller on a resistance welding device, comprising a slip ring, a bracket, a brush holder and a brush arranged on the brush holder, a ring plate is arranged on the rear side of the slip ring, the ring plate is fixedly mounted on the bracket, the slip ring is slidingly sleeved on the bracket, a carrier plate is symmetrically fixedly mounted on the inner side of the ring plate, a sliding rod is slidably inserted on the carrier plate, one end of the sliding rod is fixedly connected to the slip ring, a pressure plate is fixedly mounted on the other end of the sliding rod, a first spring is sleeved on the outside of the sliding rod and located between the pressure plate and the carrier plate, the two ends of the first spring are respectively fixedly connected to the pressure plate and the carrier plate, a clapper is fixedly sleeved on the outside of the sliding rod, the clapper contacts the carrier plate, and an extrusion assembly for extruding the pressure plate is arranged on the outside of the ring plate.

[0007] Furthermore, the extrusion assembly includes a mounting plate symmetrically fixedly mounted on the outside of the ring plate, a motor is fixedly mounted inside the mounting plate, the output shaft of the motor is provided with an extrusion structure cooperating with the pressure plate, a controller and a battery are fixedly mounted on the side of the ring plate away from the slip ring, the controller can control the rotation of the motor output shaft, and the battery supplies power to the motor and the controller.

[0008] Furthermore, the extrusion structure includes a pressing block fixed on the output shaft of the motor, and a curved surface is provided on one side of the pressing block, and the curved surface can press the pressing plate.

[0009] Furthermore, the brush holder is fixed inside the stator, the brush contacts the outside of the slip ring, a circular groove is provided on the side of the ring plate close to the slip ring, an extrusion ring is slidably arranged in the circular groove, a slope is provided on the side of the extrusion ring close to the brush holder, the slope can contact the outside of the brush holder, and a driving component is provided on the outside of the extrusion ring for driving it to slide along the circular groove.

[0010] Furthermore, the driving assembly includes a straight rod symmetrically fixedly installed on one side of the extrusion ring close to the ring plate, and one end of the straight rod close to the ring plate extends outside the ring plate. A circular plate is fixedly sleeved on the outside of the straight rod, and a second spring is sleeved on the outside of the straight rod and located between the circular plate and the ring plate. The two ends of the second spring are respectively fixed to the circular plate and the ring plate. A pushing assembly is provided on the outside of the straight rod for driving it to move in a direction close to the slip ring.

[0011] Furthermore, the pushing assembly includes a push plate fixedly mounted on the straight rod extending to one end outside the ring plate, one side of the push plate is provided with a curved surface, and the output shaft of the motor is fixedly mounted with an extrusion rod matching the curved surface.

[0012] Furthermore, the width of the contact surface between the slip ring and the brush is greater than the width of the brush.

[0013] Furthermore, the slip ring is specifically divided into three parts: a silver alloy ring, a copper alloy ring, and an annular copper wire mesh, and the silver alloy ring, the copper alloy ring, and the annular copper wire mesh are welded together by a welding process.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention can adjust the position of the slip ring so that the entire surface of the slip ring can be used and the slip ring can be fully utilized. The contact surface between the slip ring and the brush is cleaned before use so that the slip ring is not hindered by the accumulated copper chips when moving relative to the brush, so that the position of the slip ring can be adjusted more smoothly, and the contact surface between the slip ring and the brush can be adjusted better.

[0016] 2. The present invention can separate the brush from the slip ring before resetting the slip ring, so that when the slip ring is reset, the friction between the copper chips and the brush will not affect its reset speed, thereby ensuring the degree of vibration generated when the clap board hits the carrier board, and further ensuring that the copper chips on the surface of the slip ring can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing the structure of a conductive friction ring for a welding roller on a resistance welding device according to an embodiment of the present invention Figure 1 ;

[0018] Figure 2A schematic diagram showing the structure of a conductive friction ring for a welding roller on a resistance welding device according to an embodiment of the present invention Figure 2 ;

[0019] Figure 3 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 A schematic diagram showing the structure of a conductive friction ring for a welding roller on a resistance welding device according to an embodiment of the present invention Figure 3 ;

[0021] Figure 5 A schematic structural diagram of an extrusion ring according to an embodiment of the present invention is shown;

[0022] Figure 6 A schematic cross-sectional view of a conductive friction ring of a welding roller used in a resistance welding device according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic structural diagram of a slip ring according to an embodiment of the present invention is shown;

[0024] In the figure: 1, slip ring; 2, ring plate; 3, bracket; 4, carrier plate; 5, slide rod; 6, pressure plate; 7, first spring; 8, clapper board; 9, mounting plate; 10, motor; 11, pressure block; 12, arc surface; 13, controller; 14, battery; 15, brush holder; 16, brush; 17, extrusion ring; 18, inclined plane; 19, straight rod; 20, second spring; 21, round plate; 22, push plate; 23, curved surface; 24, extrusion rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] The present invention provides a conductive friction ring for a welding roller on a resistance welding device, such as Figures 1 to 7As shown, it includes a slip ring 1, a bracket 3, a brush holder 15 and a brush 16 arranged on the brush holder 15. A ring plate 2 is arranged on the rear side of the slip ring 1. The ring plate 2 is fixedly mounted on the bracket 3. The slip ring 1 is slidably sleeved on the bracket 3. A carrier plate 4 is symmetrically fixedly mounted on the inner side of the ring plate 2. A slide bar 5 is slidably inserted on the carrier plate 4. One end of the slide bar 5 is fixedly connected to the slip ring 1. A pressure plate 6 is fixedly mounted on the other end of the slide bar 5. A first spring 7 is sleeved on the outside of the slide bar 5 and located between the pressure plate 6 and the carrier plate 4. The two ends of the first spring 7 are respectively connected to the The pressing plate 6 and the carrier plate 4 are fixedly connected, the outer fixed sleeve of the sliding rod 5 is provided with a clapper plate 8, and the clapper plate 8 is in contact with the carrier plate 4. The outside of the ring plate 2 is provided with an extrusion assembly for extruding the pressing plate 6. The bracket 3 is a bracket for installing the slip ring in the conductive slip ring in the prior art. The bracket 3 is fixed to the welding roller, so that when the welding roller rotates, the bracket 3 and the slip ring 1 are rotated. The slip ring 1 is a slip ring in the conductive slip ring in the prior art, and the slip ring 1 is connected with electric wires. The brush holder 15 is a brush holder for installing brushes inside the conductive slip ring in the prior art.

[0027] Before use, the pressing plate 6, the slide bar 5, the clapper board 8 and the slip ring 1 are moved in a direction away from the ring plate 2 by the extrusion assembly, and the pressing plate 6 compresses the first spring 7 to deform it and generate a force, and then the extrusion assembly cancels the extrusion of the pressing plate 6, and the first spring 7 releases the force and quickly resets the pressing plate 6, the slide bar 5 and the slip ring 1, so that the clapper board 8 slaps the carrier plate 4 to generate vibration, and the vibration is transmitted to the slide bar 5 and the slip ring 1. Subsequently, the extrusion assembly can be continuously extruded and canceled. The same principle can be used to realize the continuous vibration of the slip ring 1, so that the copper chips generated by the wear on the contact surface between the outer surface and the brush 16 can be shaken off, and the copper chips can be removed. After cleaning, during use, the position of the slip ring 1 can be adjusted by moving the pressing plate 6 with the extrusion assembly, so that the contact surface between the slip ring 1 and the brush 16 can be adjusted. The contact surface between the slip ring 1 and the brush 16 can be adjusted at intervals to ensure that the entire surface of the slip ring 1 can be used and the slip ring 1 is fully utilized. Before use, the contact surface between the slip ring 1 and the brush 16 is cleaned so that the slip ring 1 is not hindered by the accumulated copper filings when moving relative to the brush 16, so that the position of the slip ring 1 can be adjusted more smoothly, and then the contact surface between the slip ring 1 and the brush 16 can be better adjusted.

[0028] like Figure 2 and Figure 3 As shown, the extrusion assembly includes a mounting plate 9 symmetrically fixedly mounted on the outside of the ring plate 2, a motor 10 is fixedly mounted inside the mounting plate 9, the output shaft of the motor 10 is provided with an extrusion structure that cooperates with the pressure plate 6, and a controller 13 and a battery 14 are fixedly mounted on the side of the ring plate 2 away from the slip ring 1. The controller 13 can control the rotation of the output shaft of the motor 10, and the battery 14 supplies power to the motor 10 and the controller 13.

[0029] Before use, the controller 13 is used to control the output shaft of the motor 10 to move the extrusion structure. The extrusion structure squeezes the pressure plate 6 to make it move with the slide bar 5, the clapper 8, and the slip ring 1 in the direction away from the ring plate 2. At the same time, the pressure plate 6 compresses the first spring 7 to deform it and generate a force. When the extrusion structure leaves the pressure plate 6, the first spring 7 releases the force to reset the pressure plate 6, the slide bar 5, the clapper 8, and the slip ring 1. The clapper 8 hits the carrier plate 4 to make it vibrate. The vibration is transmitted to the slide bar 5 and the slip ring 1. The continuous vibration of the output shaft of the motor 10 can make the extrusion structure intermittently contact and separate from the pressure plate 6, so that the continuous vibration of the slip ring 1 can be achieved.

[0030] like Figure 3 As shown, the extrusion structure includes a pressing block 11 fixed on the output shaft of the motor 10 , and a curved surface 12 is provided on one side of the pressing block 11 , and the curved surface 12 can press the pressing plate 6 .

[0031] The output shaft of the motor 10 rotates with the pressure block 11 until the arc surface 12 contacts the pressure plate 6, and the arc surface 12 squeezes the pressure plate 6 to make it move with the slide bar 5, the clapper board 8, and the slip ring 1 in the direction away from the ring plate 2. At the same time, the pressure plate 6 compresses the first spring 7 to deform it and generate a force. When the pressure plate 6 is squeezed to the point where it cannot move, the output shaft of the motor 10 reverses, and the arc surface 12 and the pressure plate 6 are gradually separated. The first spring 7 releases the force and gradually resets the pressure plate 6. The controller 13 can control the forward and reverse rotation of the output shaft of the motor 10, so that the first spring 7 can be used to adjust the position of the pressure plate 6, thereby adjusting the position of the slip ring 1.

[0032] like Figures 1 to 7 As shown, the brush holder 15 is fixed inside the stator, and the stator is a shell fixed outside the conductive slip ring in the prior art. The bracket 3 and the slip ring 1 are both arranged inside the stator, and the brush 16 contacts the outside of the slip ring 1. A circular groove is provided on the side of the ring plate 2 close to the slip ring 1, and an extrusion ring 17 is slidably arranged in the circular groove. A slope 18 is provided on the side of the extrusion ring 17 close to the brush holder 15, and the slope 18 can contact the outside of the brush holder 15. A driving component for driving the extrusion ring 17 to slide along the circular groove is provided on the outside.

[0033] When the first spring 7 releases its force and quickly resets the pressure plate 6, the slip ring 1 moves accordingly. If there are more copper chips on the contact surface between the slip ring 1 and the brush 16, the resistance of the slip ring 1 relative to the brush 16 is large, resulting in the slip ring 1 being unable to quickly reset, and then the force of the clapper 8 hitting the carrier plate 4 is insufficient, resulting in small vibration, and thus the copper chips on the surface of the slip ring 1 cannot be shaken off. Therefore, when the arc surface 12 presses the pressure plate 6 to the point where it cannot move, as the output shaft of the motor 10 continues to move, the pressure block 11 slides relative to the pressure plate 6. At this time, the pressure plate 6 is stationary, and as the output shaft of the motor 10 moves, the matching drive assembly drives the extrusion ring 17 to move closer The brush holder 15 moves in the direction of the inclined surface 18 to lift the brush holder 15, so that the brush holder 15 and the brush 16 are separated from the surface of the slip ring 1, and then the pressure block 11 leaves the pressure plate 6, and the first spring 7 releases the force to quickly reset the pressure plate 6, the slide bar 5, the slip ring 1, and the clapper 8. When the slip ring 1 moves, the brush 16 at this time is not in contact with the slip ring 1. Therefore, when the slip ring 1 is reset, the friction between the copper filings and the brush 16 will not affect its reset speed, thereby ensuring the degree of vibration generated when the clapper 8 hits the carrier plate 4, and then ensuring that the copper filings on the surface of the slip ring 1 can be cleaned. When the slip ring 1 is reset, the drive assembly drives the extrusion ring 17 to reset.

[0034] When the clapper plate 8 contacts the carrier plate 4, there is a gap between the slip ring 1 and the ring plate 2. The existence of the gap allows the slip ring 1 to quickly reset and vibrate, which can shake off the copper chips on the surface and make the copper chips fall into the stator through the gap.

[0035] like Figures 4 to 5 As shown, the driving assembly includes a straight rod 19 symmetrically fixedly mounted on the side of the extrusion ring 17 close to the ring plate 2, and one end of the straight rod 19 close to the ring plate 2 extends to the outside of the ring plate 2. A circular plate 21 is fixedly sleeved on the outside of the straight rod 19, and a second spring 20 is sleeved on the outside of the straight rod 19 and located between the circular plate 21 and the ring plate 2. The two ends of the second spring 20 are respectively fixed to the circular plate 21 and the ring plate 2. A pushing assembly for driving the straight rod 1 to move toward the slip ring 1 is provided on the outside of the straight rod 19, and the pushing assembly includes a push plate 22 fixedly mounted on the straight rod 19 extending to one end outside the ring plate 2, and a curved surface 23 is provided on one side of the push plate 22. An extrusion rod 24 matching the curved surface 23 is fixedly mounted on the output shaft of the motor 10.

[0036] The output shaft of the motor 10 rotates and moves with the extrusion rod 24. After the extrusion rod 24 contacts the curved surface 23, the curved surface 23 squeezes the push plate 22 to make it move with the straight rod 19, the extrusion ring 17, and the circular plate 21 in the direction close to the slip ring 1, so that the circular plate 21 squeezes the second spring 20 to deform it and generate a force. When the extrusion rod 24 separates from the push plate 22, the second spring 20 releases the force to restore the circular plate 21, the straight rod 19, the push plate 22, and the extrusion ring 17.

[0037] like Figure 1As shown, the width of the contact surface between the slip ring 1 and the brush 16 is greater than the width of the brush 16 .

[0038] like Figure 7 As shown, the slip ring 1 is specifically divided into three parts: a silver alloy ring, a copper alloy ring, and an annular copper wire mesh. The silver alloy ring, the copper alloy ring, and the annular copper wire mesh are welded together by a welding process.

[0039] The silver sheet alloy component of the slip ring 1 can conduct 3000A-6000A of current under a certain force when the slip ring 1 rotates at a high speed, while ensuring electrical conductivity and wear resistance.

[0040] Working principle: before use, the controller 13 controls the output shaft of the motor 10 to rotate with the pressure block 11 to the arc surface 12 and contact with the pressure plate 6, and the arc surface 12 squeezes the pressure plate 6, so that the pressure plate 6 moves with the slide bar 5, the clapper 8, and the slip ring 1 in the direction away from the ring plate 2. At the same time, the pressure plate 6 compresses the first spring 7 to deform and generate a force. When the pressure block 11 leaves the pressure plate 6, the first spring 7 releases the force to reset the pressure plate 6, the slide bar 5, the clapper 8, and the slip ring 1. The clapper 8 slaps the carrier plate 4 to make it vibrate, and the vibration is transmitted to the slide bar 5 and the slip ring 1. The continuous vibration of the output shaft of the motor 10 makes the extrusion structure intermittently contact and separate with the pressure plate 6, and the continuous vibration of the slip ring 1 can be realized, so that the copper chips produced by the wear on the contact surface between its outer surface and the brush 16 can be shaken off, and the copper chips can be cleaned. After cleaning, during use, the output shaft of the motor 10 rotates with the pressure block 11 to the arc surface 12 and contact with the pressure plate 6, and the arc surface 12 squeezes the pressure plate. 6 makes it move with the slide bar 5, the clapper board 8 and the slip ring 1 in the direction away from the ring plate 2, and at the same time, the pressure plate 6 compresses the first spring 7 to deform it to generate a force. When the pressure plate 6 is squeezed to the point where it cannot move, the output shaft of the motor 10 is reversed, so that the arc surface 12 and the pressure plate 6 are gradually separated. The first spring 7 releases the force and gradually resets the pressure plate 6. The controller 13 can control the forward and reverse rotation of the output shaft of the motor 10, so that the first spring 7 can be used to adjust the position of the pressure plate 6, and then the position of the slip ring 1 can be adjusted. After each adjustment is completed, it is adjusted again at intervals, so that the entire surface of the slip ring 1 can be used and the slip ring 1 can be fully utilized. Before use, the contact surface between the slip ring 1 and the brush 16 is cleaned, so that the slip ring 1 is not hindered by the accumulated copper chips when it moves relative to the brush 16, so that the position of the slip ring 1 can be adjusted more smoothly, and then the contact surface between the slip ring 1 and the brush 16 can be adjusted better.When the first spring 7 releases its force and quickly resets the pressure plate 6, the slip ring 1 moves accordingly. If there are more copper chips on the contact surface between the slip ring 1 and the brush 16, the resistance of the slip ring 1 relative to the brush 16 is large, resulting in the slip ring 1 being unable to quickly reset, and then resulting in the clapper 8 not hitting the carrier plate 4 with enough force, resulting in small vibration, and thus failing to shake off the copper chips on the surface of the slip ring 1. Therefore, when the arc surface 12 presses the pressure plate 6 to the point where it cannot move, as the output shaft of the motor 10 continues to move, the pressure block 11 slides relative to the pressure plate 6. At this time, the pressure plate 6 does not move, and as the output shaft of the motor 10 moves, it moves with the extrusion rod 24. After the extrusion rod 24 contacts the curved surface 23, the curved surface 23 squeezes the push plate 22 to make it move with the straight rod 19, the extrusion ring 17, and the circular plate 21 in the direction close to the slip ring 1, so that the circular plate 21 squeezes the second spring 20 to deform and generate a force. The extrusion ring 17 moves toward the direction of the brush holder 15, and cooperates with the inclined surface 18 to lift the brush holder 15, so that the brush holder 15 and the brush 16 are separated from the surface of the slip ring 1. Then the pressure block 11 leaves the pressure plate 6, and the first spring 7 releases the force to quickly reset the pressure plate 6, the slide rod 5, the slip ring 1, and the clapper 8. When the slip ring 1 moves, the brush 16 at this time does not contact the slip ring 1. Therefore, when the slip ring 1 is reset, the friction between the copper chips and the brush 16 will not affect its reset speed, thereby ensuring the degree of vibration generated when the clapper 8 hits the carrier plate 4, and then ensuring that the copper chips on the surface of the slip ring 1 can be cleaned. When the slip ring 1 is reset, the output shaft of the motor 10 separates the extrusion rod 24 from the push plate 22, and the second spring 20 releases the force to reset the circular plate 21, the straight rod 19, the push plate 22, and the extrusion ring 17. At this time, the brush holder 15 is reset so that the brush 16 contacts the outer side of the slip ring 1. ;

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A conductive friction ring for a welding roller on a resistance welding device, comprising a slip ring (1), a bracket (3), a brush holder (15) and a brush (16) arranged on the brush holder (15), characterized in that: A ring plate (2) is provided on the rear side of the slip ring (1), and the ring plate (2) is fixedly mounted on the bracket (3). The slip ring (1) is slidably sleeved on the bracket (3). A carrier plate (4) is symmetrically fixedly mounted on the inner side of the ring plate (2). A sliding rod (5) is slidably inserted on the carrier plate (4). One end of the sliding rod (5) is fixedly connected to the slip ring (1), and a pressure plate (6) is fixedly mounted on the other end of the sliding rod (5). A first spring (7) is sleeved on the outside of the sliding rod (5) and located between the pressure plate (6) and the carrier plate (4). The two ends of the first spring (7) are respectively fixedly connected to the pressure plate (6) and the carrier plate (4). A clapping plate (8) is fixedly sleeved on the outside of the sliding rod (5), and the clapping plate (8) contacts the carrier plate (4). An extrusion component for extruding the pressure plate (6) is provided on the outside of the ring plate (2); The brush holder (15) is fixed inside the stator, the brush (16) contacts the outside of the slip ring (1), a circular groove is provided on the side of the ring plate (2) close to the slip ring (1), an extrusion ring (17) is slidably arranged in the circular groove, an inclined surface (18) is provided on the side of the extrusion ring (17) close to the brush holder (15), the inclined surface (18) can contact the outside of the brush holder (15), and a driving component for driving the extrusion ring (17) to slide along the circular groove is provided on the outside; The driving assembly comprises a straight rod (19) symmetrically fixedly mounted on a side of the extrusion ring (17) close to the ring plate (2); one end of the straight rod (19) close to the ring plate (2) extends outside the ring plate (2); a circular plate (21) is fixedly sleeved on the outside of the straight rod (19); a second spring (20) is sleeved on the outside of the straight rod (19) and located between the circular plate (21) and the ring plate (2); two ends of the second spring (20) are respectively fixed to the circular plate (21) and the ring plate (2); and a pushing assembly is provided on the outside of the straight rod (19) for driving it to move in a direction close to the slip ring (1); The pushing assembly comprises a push plate (22) fixedly mounted on a straight rod (19) extending to an outer end of the ring plate (2), a curved surface (23) being provided on one side of the push plate (22), and an extrusion rod (24) matching the curved surface (23) being fixedly mounted on the output shaft of the motor (10).

2. The conductive friction ring for a welding roller on a resistance welding device according to claim 1, characterized in that: The extrusion assembly comprises a mounting plate (9) symmetrically fixedly mounted on the outside of the ring plate (2); a motor (10) is fixedly mounted inside the mounting plate (9); an output shaft of the motor (10) is provided with an extrusion structure that cooperates with a pressure plate (6); a controller (13) and a battery (14) are fixedly mounted on a side of the ring plate (2) away from the slip ring (1); the controller (13) can control the rotation of the output shaft of the motor (10); and the battery (14) supplies power to the motor (10) and the controller (13).

3. The conductive friction ring for a welding roller on a resistance welding device according to claim 2, characterized in that: The extrusion structure comprises a pressing block (11) fixed on the output shaft of the motor (10), one side of the pressing block (11) is provided with an arc surface (12), and the arc surface (12) can press the pressing plate (6).

4. The conductive friction ring for a welding roller on a resistance welding device according to claim 3, characterized in that: The width of the contact surface between the slip ring (1) and the brush (16) is greater than the width of the brush (16).

5. The conductive friction ring for a welding roller on a resistance welding device according to claim 4, characterized in that: The slip ring (1) is specifically divided into three parts: a silver alloy ring, a copper alloy ring, and an annular copper wire mesh. The silver alloy ring, the copper alloy ring, and the annular copper wire mesh are welded together using a welding process.

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