Surface treatment equipment for automobile parts production

Abstract

The application relates to a polishing device and discloses a surface treatment device for automobile part production, which comprises a workbench, a support arranged on the top of the workbench, two ring bodies arranged on the support, the ring body being provided with an inner ring and an outer ring, a plurality of driving ports penetrating through the ring body being formed on the outer ring of the ring body, and a bearing part being capable of being rubbed with a first polishing roller and a second polishing roller when rotating, so that the inner and outer walls of the bearing part can be simultaneously polished, the polishing procedure is saved, the ring body body is fixed by using the design of the outer ring and the inner ring, compared with the polishing device in the prior art, the process of clamping the ring body by using a clamp is saved, the bearing part is not damaged due to the need of applying a large clamping force to the bearing part to rotate the bearing part for polishing, the polishing device in the prior art needs the bearing part to pass through two or more polishing processes, and the inner and outer walls of the bearing part cannot be simultaneously polished.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, and more specifically to a surface treatment equipment for the production of automotive parts. Background Technology

[0002] A car is a means of transportation composed of various systems and parts. In order to ensure the safety of car use, the processing and subsequent maintenance of car parts need to be carefully considered. Poor quality car parts can easily damage the car itself or even cause accidents. Polishing is one of the processes for handling car parts.

[0003] Automotive bearing stampings are crucial components in automobiles, primarily responsible for load-bearing and providing precise guidance for wheel hub rotation. They withstand both axial and radial loads, making them extremely important. Polishing equipment is indispensable in the production and processing of automotive bearing stampings. Its main function is to grind and polish the bearings, resulting in a smoother surface and better compatibility with automotive parts.

[0004] Existing automotive parts polishing machines cannot simultaneously polish bearing parts from multiple angles. They require frequent switching of the polishing surface during the polishing process, such as the inner and outer walls and both sides. This necessitates the discontinuous collaborative work of different polishing equipment, which increases the polishing process and workload of the bearing surface. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface treatment device for automotive parts manufacturing, aiming to alleviate the aforementioned problems to at least some extent.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A surface treatment device for manufacturing automotive parts, comprising:

[0008] Workbench;

[0009] A support frame is located on top of the workbench;

[0010] Two ring bodies are disposed on the bracket. Each ring body has an inner ring and an outer ring. The outer ring of the ring body has multiple driving ports that penetrate the ring body. A first polishing port is provided between every two adjacent driving ports. The inner ring of the ring body has multiple second polishing ports that correspond to the first polishing ports.

[0011] A drive roller is disposed within the drive port;

[0012] A first polishing roller and a second polishing roller, wherein the first polishing roller is disposed inside the first polishing opening and the second polishing roller is disposed inside the second polishing opening;

[0013] A positioning frame is located at the top of the support and between the two rings. The top of the positioning frame is provided with two clamps, and an elastic component is provided between the clamps and the positioning frame.

[0014] A drive component, disposed on one of the rings, is used to rotate multiple drive rollers on both rings;

[0015] A movable component is disposed between the bracket and the ring body for moving the two ring bodies. The two ring bodies move closer to or away from the positioning frame. When the ring body moves closer to the positioning frame to a first preset position, it can rotate the clamp. When the ring body moves closer to the positioning frame to a second preset position, it can move the positioning frame downward.

[0016] When the ring moves away from the positioning frame to a preset position, it can rotate the first polishing roller and the second polishing roller by a preset angle.

[0017] When the two rings move to the third preset position near the positioning frame, they can move the position of the second polishing roller, and the second polishing roller moves toward the outer ring.

[0018] Preferably, the outer ring is rotatably connected to a plurality of first shafts extending into the first polishing port, and the inner ring is rotatably connected to a plurality of second shafts extending into the second polishing port. The first polishing roller is slidably connected to the first shaft, and the second polishing roller is slidably connected to the second shaft.

[0019] Preferably, a cavity is provided on one side of the inner ring, and a sliding opening communicating with the second polishing port is provided on the other side of the inner ring. A limiting ring slidably connected to the sliding opening and rotatably connected to the second shaft is provided. A sliding plate is slidably connected to the cavity. A first spring is connected between the sliding plate and the cavity. A connecting rod rotatably connected to the limiting ring is rotatably connected to the sliding plate.

[0020] Preferably, a connecting frame is connected to one side of the outer ring, a rack is slidably connected to the connecting frame, a second spring is connected between the rack and the connecting frame, a gear is provided on the first shaft, a ratchet mechanism is provided between the gear and the first shaft, a chain drive is provided between the first shaft and the second shaft, and a top contact ring is provided on the bracket.

[0021] Preferably, the chain drive component includes sprockets mounted on a first shaft and a second shaft, a drive chain between the two sprockets, a first limiting cover sleeved on the outside of the sprocket on the first shaft connected to the connecting frame, a support plate slidably connected to one side of the inner ring and rotatably connected to the second shaft, and a second limiting cover sleeved on the outside of the sprocket on the second shaft connected to one side of the support plate.

[0022] Preferably, the moving component is rotatably connected to a lead screw on the bracket, and a sliding frame that is threadedly connected to the lead screw is connected to the side wall of the outer ring near the lead screw. A first motor is connected to the bracket, and the drive shaft of the first motor is connected to the lead screw.

[0023] Preferably, the bracket is connected to a spring rod connected to the positioning frame, the bottom of the positioning frame is provided with a connecting groove, a traction shaft is rotatably connected in the connecting groove, a third spring is connected between the traction shaft and the connecting groove, a first rope is wound on the lead screw, the other end of the first rope is wound on the traction shaft, the two ends of the traction shaft are provided with connecting sleeves, a second rope is wound on the connecting sleeves, and the other end of the second rope is connected to the clamp.

[0024] The elastic component is a torsion spring, which is connected between the clamp and the connecting frame.

[0025] Preferably, the driving component includes a second motor connected to one of the inner rings, the second motor being connected to one of the driving rollers by a chain drive mechanism, and a chain drive mechanism being connected between every two driving rollers.

[0026] Preferably, the driving component further includes a connection opening on one side of the outer ring, the shaft of the driving roller extends into the connection opening, an active turntable connected to the driving roller is connected to one of the connection openings on the outer ring, and a driven turntable connected to the driving roller is connected to the connection opening on the other outer ring.

[0027] Preferably, a support rod is connected between the outer ring and the inner ring, and a roller is rotatably connected to the side of the support rod near the bearing component.

[0028] In summary, the present invention has the following main beneficial effects:

[0029] By setting up a positioning frame, during application, operators can manually place the bearing components to be polished onto the positioning frame using a robot and its fixtures. When the bearing component is placed on the positioning frame, it first contacts the two clamps, causing the clamps to rotate and apply a torsional force to the elastic component. After the bearing component contacts the positioning frame, the elastic component releases potential energy, and the clamps can be used to position and fix the bearing component. During polishing, the operator can use a moving component to move the position of the two rings. The two rings move synchronously closer to each other. When the rings move to the first preset position near the positioning frame, the two clamps can be rotated. When the outer ring of the ring body is fitted onto the outside of the bearing component and the inner ring is fitted onto the inside of the bearing component, rotating the clamp removes the clamp from the bearing component and no longer fixes it. Instead, the bearing component is fixed using the gap between the inner and outer rings. When the ring body moves towards the positioning frame to the second preset position, the positioning frame can be moved downwards, distancing itself from the clamp on the positioning frame and preventing the positioning frame from interfering with the engagement of the two ring bodies. When the ring body moves towards the positioning frame to the third preset position, the position of the second polishing roller can be moved, allowing the second polishing roller to move closer to the outer ring. Currently, the second polishing roller is inside the bearing component and is moving towards the bearing component. The inner wall of the bearing component moves and contacts the inner circle of the bearing component. After the two rings are engaged, the drive rollers on the two rings can contact the outer wall of the bearing component. After the two rings are engaged, multiple first polishing rollers and multiple second polishing rollers contact each other. The first polishing rollers can contact the outer wall of the bearing component, and the second polishing rollers can contact the inner wall of the bearing component. During polishing, the operator can start the drive unit, which synchronously rotates multiple drive rollers. The synchronous and unidirectional rotation of the multiple drive rollers can use friction to rotate the bearing component inside the ring, so that its outer wall contacts the first polishing rollers and its inner wall contacts the moved second polishing rollers. When the bearing rotates, it rubs against the first and second polishing rollers, achieving simultaneous polishing of the inner and outer walls of the bearing, thus saving on the polishing process. The ring body, with its outer and inner ring design, can fix the bearing inside the ring. Compared to existing polishing devices, this eliminates the need for clamping the ring with a fixture and avoids the problem of applying a large clamping force to the bearing for polishing, which could damage it. This solves the problem that existing polishing equipment requires the bearing to undergo more than two polishing processes and cannot polish the inner and outer walls of the bearing simultaneously. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the support structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the positioning frame structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the traction shaft structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the ring structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the inner ring structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the outer ring structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the roller structure of the present invention;

[0038] Figure 9 yes Figure 6 Enlarged schematic diagram of the local structure at point A;

[0039] Figure 10 This is a schematic diagram of the first and second shaft structures of the present invention;

[0040] Figure 11 This is a schematic diagram of the active and driven turntable structures of the present invention.

[0041] Figure label:

[0042] 100. Workbench; 101. Support; 102. Ring body; 103. Inner ring; 104. Outer ring; 105. Drive port; 106. First polishing port; 107. Second polishing port; 108. Drive roller; 109. First polishing roller; 110. Second polishing roller; 111. Positioning frame; 112. Clamp; 113. Elastic component;

[0043] 200, First shaft; 201, Second shaft; 202, Cavity; 203, Sliding port; 204, Limiting ring; 205, Slide plate; 206, First spring; 207, Connecting rod; 208, Support rod; 209, Roller;

[0044] 300. Connecting frame; 301. Rack; 302. Second spring; 303. Gear; 304. Top contact ring; 305. Sprocket; 306. Transmission chain; 307. First limiting cover; 308. Support plate; 309. Second limiting cover;

[0045] 400. Lead screw; 401. Sliding frame; 402. First motor; 403. Spring rod; 404. Connecting groove; 405. Traction shaft; 406. Third spring; 407. First rope; 408. Connecting sleeve; 409. Second rope;

[0046] 500. Second motor; 501. Chain drive mechanism; 502. Connecting opening; 503. Driving turntable; 504. Driven turntable. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] refer to Figures 1-11 A surface treatment device for automotive parts manufacturing, comprising:

[0049] Workbench 100;

[0050] Support 101 is located on top of workbench 100;

[0051] Two ring bodies 102 are mounted on a bracket 101. Each ring body 102 has an inner ring 103 and an outer ring 104. The outer ring 104 of the ring body 102 has multiple drive ports 105 that penetrate the ring body 102. A first polishing port 106 is provided between every two adjacent drive ports 105. The inner ring 103 of the ring body 102 has multiple second polishing ports 107 that correspond to the first polishing ports 106.

[0052] The drive roller 108 is located inside the drive port 105;

[0053] A first polishing roller 109 and a second polishing roller 110 are provided. The first polishing roller 109 is disposed in the first polishing opening 106, and the second polishing roller 110 is disposed in the second polishing opening 107.

[0054] The positioning frame 111 is located on the top of the bracket 101, between the two rings 102. The top of the positioning frame 111 is provided with two clamps 112, and an elastic member 113 is provided between the clamps 112 and the positioning frame 111.

[0055] A drive component is provided on one of the rings 102 for rotating multiple drive rollers 108 on both rings 102;

[0056] A movable component is provided between the bracket 101 and the ring 102 for moving the two rings 102. The two rings 102 move closer to or away from the positioning frame 111. When the ring 102 moves closer to the positioning frame 111 to the first preset position, it can rotate the clamp 112. When the ring 102 moves closer to the positioning frame 111 to the second preset position, it can move the positioning frame 111 downward.

[0057] When the ring 102 moves away from the positioning frame 111 to a preset position, it can rotate the first polishing roller 109 and the second polishing roller 110 by a preset angle.

[0058] When the two rings 102 move to the third preset position near the positioning frame 111, they can move the position of the second polishing roller 110, and the second polishing roller 110 moves towards the outer ring 104.

[0059] By setting up the positioning frame 111, during application, the operator can manually place the bearing component to be polished onto the positioning frame 111 using a robot and its fixtures. When the bearing component is placed onto the positioning frame 111, it will first contact the two clamps 112 on it, causing the two clamps 112 to rotate and apply a torsional force to the elastic component 113. After the bearing component contacts the positioning frame 111, the elastic component 113 releases potential energy, and the clamps 112 can be used to position and fix the bearing component. During polishing, the operator can use the moving component to move the position of the two rings 102. The two rings 102 move synchronously closer to each other. When the rings 102 move close to the positioning frame 111 and reach the first preset position, the two clamps 112 can be rotated. When the outer ring 104 of the ring body 102 is fitted onto the outside of the bearing component and the inner ring 103 is fitted onto the inside of the bearing component, rotating the clamp 112 causes the clamp 112 to leave the bearing component and no longer fix it. Instead, the bearing component is fixed using the gap between the inner ring 103 and the outer ring 104. When the ring body 102 moves close to the positioning frame 111 to the second preset position, the positioning frame 111 can be moved downwards, distancing itself from the clamp 112 between the two ring bodies 102 and preventing the positioning frame 111 from interfering with the engagement of the two ring bodies 102. When the ring body 102 moves close to the positioning frame 111 to the third preset position, the second polishing roller 110 can be moved closer to the outer ring 104. The second polishing roller 110 is located inside the bearing component and moves towards the inner wall of the bearing component to contact its inner circle. After the two rings 102 are engaged, the drive rollers 108 on the two rings 102 can contact the outer wall of the bearing component. After the two rings 102 are engaged, multiple first polishing rollers 109 and multiple second polishing rollers 110 are in contact with each other. The first polishing rollers 109 can contact the outer wall of the bearing component, and the second polishing rollers 110 can contact the inner wall of the bearing component. During polishing, the operator can start the drive unit, which synchronously rotates multiple drive rollers 108. The synchronous and unidirectional rotation of multiple drive rollers 108 can use friction to rotate the bearing component inside the ring 102, and its outer wall contacts the first polishing rollers 109. Its inner wall contacts the moved second polishing roller 110. When the bearing rotates, it rubs against the first polishing roller 109 and the second polishing roller 110, which can achieve the purpose of polishing the inner and outer walls of the bearing at the same time, saving the polishing process. The ring body 102 body uses the design of outer ring 104 and inner ring 103 to fix the bearing in the ring body 102. Compared with the polishing device in the prior art, it eliminates the process of using a clamp to hold the ring body 102, and avoids the problem of applying a large clamping force to the bearing to rotate for polishing, which would cause damage to the bearing. It solves the problem that the polishing equipment in the prior art requires the bearing to go through more than two polishing processes and cannot polish the inner and outer walls of the bearing at the same time.

[0060] As a further embodiment of the present invention, a plurality of first shafts 200 extending into the first polishing port 106 are rotatably connected to the outer ring 104, a plurality of second shafts 201 extending into the second polishing port 107 are rotatably connected to the inner ring 103, the first polishing roller 109 is slidably connected to the first shafts 200, and the second polishing roller 110 is slidably connected to the second shafts 201.

[0061] By setting the ring body 102, when the two ring bodies 102 move closer to each other until the two ring bodies 102 are engaged, the corresponding first polishing roller 109 and the corresponding second polishing roller 110 come into contact. The friction generated by the first polishing roller 109 pressing against the first polishing opening 106 and the friction generated by the second polishing roller 110 pressing against the second polishing opening 107 can ensure that the polishing rollers will not rotate when the bearing component rotates. This can ensure the purpose of polishing the bearing component when it rotates. Furthermore, the first polishing roller 109 and the second polishing roller 110 are slidably mounted on the first shaft 200 and the second shaft 201, so that when the wear of the first polishing roller 109 or the second polishing roller 110 reaches the preset value, the operator can remove the first polishing roller 109 and the second polishing roller 110.

[0062] As a further embodiment of the present invention, a cavity 202 is provided on one side of the inner ring 103, and a sliding port 203 communicating with the second polishing port 107 is provided on the other side of the inner ring 103. A limiting ring 204 slidably connected to the second shaft 201 is rotatably connected in the sliding port 203. A sliding plate 205 is slidably connected in the cavity 202. A first spring 206 is connected between the sliding plate 205 and the cavity 202. A connecting rod 207 rotatably connected to the limiting ring 204 is rotatably connected on the sliding plate 205.

[0063] By setting a sliding plate 205, which protrudes from the cavity 202, when the two rings 102 move closer to each other until they are engaged, the sliding plates 205 on the two rings 102 touch each other and move into the cavity 202. During the movement, the connecting rod 207 can touch the position of the limiting ring 204, so that the limiting ring 204 drives the second shaft 201 to move. The second shaft 201 drives the second polishing roller 110 to move towards the inner wall of the bearing until it contacts the inner wall, thereby making the polishing roller on the second shaft 201 contact the inner wall of the bearing, so as to achieve the purpose of grinding and polishing the inner wall of the bearing when it rotates.

[0064] As a further embodiment of the present invention, a connecting frame 300 is connected to one side of the outer ring 104, a rack 301 is slidably connected to the connecting frame 300, a second spring 302 is connected between the rack 301 and the connecting frame 300, a gear 303 is provided on the first shaft 200, a ratchet mechanism is provided between the gear 303 and the first shaft 200, a chain drive is provided between the first shaft 200 and the second shaft 201, and a top contact ring 304 is provided on the bracket 101;

[0065] By setting the rack 301, when the ring 102 moves away from the positioning frame 111 and moves towards the top contact ring 304 to a preset position, the rack 301 contacts the top contact ring 304 and squeezes the top contact ring 304. The rack 301 is displaced by the force, and the rack 301 can rotate the gear 303 when it is displaced. The gear 303 causes the first shaft 200 and the first polishing wheel on the first shaft 200 to rotate through the ratchet mechanism. When the first shaft 200 rotates, it can also cause the second shaft 201 and the second polishing wheel to rotate through the chain drive. When the ring 102 moves towards the positioning frame 111 again, the rack 301 is reset by the force of the second spring 302. The gear 303 rotates freely on the first shaft 200 through the ratchet mechanism. In this way, the first polishing wheel and the second polishing wheel can be rotated at a preset angle after each polishing of the bearing component to balance the wear of the polishing wheel.

[0066] As a further embodiment of the present invention, the chain drive component includes a sprocket 305 disposed on a first shaft 200 and a second shaft 201, a drive chain 306 disposed between the two sprockets 305, a first limiting cover 307 sleeved on the outside of the sprocket 305 on the first shaft 200 connected to the connecting frame 300, a support plate 308 slidably connected to one side of the inner ring 103 and rotatably connected to the second shaft 201, and a second limiting cover 309 sleeved on the outside of the sprocket 305 on the second shaft 201 connected to one side of the support plate 308;

[0067] By setting sprockets 305 and transmission chains 306, the second shaft 201 can rotate synchronously at the same angle when the first shaft 200 rotates. The support plate 308 can slide along the second shaft 201 on the inner ring 103. The first limit cover 307 and the second limit cover 309 can restrict the transmission chains 306 on the two sprockets 305 to ensure that the transmission chains 306 become slack but do not disengage from the sprockets 305 when the second shaft 201 is displaced.

[0068] As a further embodiment of the present invention, the moving part is rotatably connected to the lead screw 400 on the bracket 101, and a sliding frame 401 threadedly connected to the lead screw 400 is connected to the side wall of the outer ring 104 near the side wall of the lead screw 400. A first motor 402 is connected to the bracket 101, and the drive shaft of the first motor 402 is connected to the lead screw 400.

[0069] By setting the first motor 402, in application, the rotation of the drive shaft of the first motor 402 drives the lead screw 400 to rotate. The rotation of the lead screw 400 can cause the sliding frame 401 on the ring 102 to move out of place through the force of the thread, thereby achieving the purpose of moving the two rings 102 closer to each other or further away from each other.

[0070] As a further embodiment of the present invention, a spring rod 403 connected to a positioning frame 111 is connected to the bracket 101. A connecting groove 404 is provided at the bottom of the positioning frame 111. A traction shaft 405 is rotatably connected in the connecting groove 404. A third spring 406 is connected between the traction shaft 405 and the connecting groove 404. A first rope 407 is wound on the lead screw 400. The other end of the first rope 407 is wound on the traction shaft 405. Connecting sleeves 408 are provided at both ends of the traction shaft 405. A second rope 409 is wound on the connecting sleeves 408. The other end of the second rope 409 is connected to the clamp 112.

[0071] Among them, the elastic component 113 is a torsion spring, which is connected between the clamp 112 and the connecting frame 300;

[0072] By setting the first rope 407, when the screw 400 rotates and the two rings 102 move toward the positioning frame 111, the first rope 407 can be wound up. When the first rope 407 is wound up, the traction shaft 405 and the connecting sleeve 408 can be rotated. The rotation of the connecting sleeve 408 can wind up the second rope 409. The second rope 409 can pull the clamp 112 to rotate, thereby achieving the purpose of making the clamp 112 leave the bearing. The screw 400 continues to rotate until the first rope 407 is wound up to a preset length on the screw 400. After the first rope 407 is completely released, the first rope 407 begins to pull the position of the traction shaft 405 and the positioning frame 111, which allows the positioning frame 111 and the clamp 112 on the positioning frame 111 to move downward to provide space for the two rings 102 to dock. In this way, when the rings 102 move to the preset position, the positioning frame 111 can be moved away from the bearing, avoiding the problem that the two rings 102 cannot dock.

[0073] As a further embodiment of the present invention, the driving component includes a second motor 500 connected to one of the inner rings 103, and a chain drive mechanism 501 is connected between the second motor 500 and one of the driving rollers 108. A chain drive mechanism 501 is also connected between every two driving rollers 108.

[0074] By setting up a second motor 500, the second motor 500 can be started during application. The rotation of the drive shaft of the second motor 500 can enable multiple drive rollers 108 to rotate synchronously and in the same direction through the chain transmission mechanism 501.

[0075] As a further embodiment of the present invention, the driving component also includes a connection opening 502 opened on one side of the outer ring 104, and the rotating shaft of the driving roller 108 extends into the connection opening 502. One of the connection openings 502 on the outer ring 104 is connected to an active turntable 503 connected to the driving roller 108, and the other connection opening 502 on the outer ring 104 is connected to a driven turntable 504 connected to the driving roller 108.

[0076] By setting up an active turntable 503 and a driven turntable 504, after the two ring bodies 102 are engaged, the driven turntable 504 and the active turntable 503 can mesh. When the drive shaft of the second motor 500 causes the drive roller 108 on one of the outer rings 104 to rotate, the active turntable 503 and the driven turntable 504 can cause the drive roller 108 on the other outer ring 104 to rotate, thereby achieving the purpose of setting up only one drive source to make multiple drive rollers 108 on the two outer rings 104 rotate together.

[0077] As a further embodiment of the present invention, a support rod 208 is connected between the outer ring 104 and the inner ring 103, and a roller 209 is rotatably connected to the side of the support rod 208 near the bearing component.

[0078] By setting roller 209, the friction between the two side walls of the bearing and the support rod 208 can be reduced.

[0079] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment equipment for automotive parts manufacturing, characterized in that, include: Workbench; A support frame is located on top of the workbench; Two ring bodies are disposed on the bracket. Each ring body has an inner ring and an outer ring. The outer ring of the ring body has multiple driving ports that penetrate the ring body. A first polishing port is provided between every two adjacent driving ports. The inner ring of the ring body has multiple second polishing ports that correspond to the first polishing ports. A drive roller is disposed within the drive port; A first polishing roller and a second polishing roller, wherein the first polishing roller is disposed inside the first polishing opening and the second polishing roller is disposed inside the second polishing opening; A positioning frame is located at the top of the support and between the two rings. The top of the positioning frame is provided with two clamps, and an elastic component is provided between the clamps and the positioning frame. A drive component, disposed on one of the rings, is used to rotate multiple drive rollers on both rings; A movable component is disposed between the bracket and the ring body for moving the two ring bodies. The two ring bodies move closer to or away from the positioning frame. When the ring body moves closer to the positioning frame to a first preset position, it can rotate the clamp. When the ring body moves closer to the positioning frame to a second preset position, it can move the positioning frame downward. When the ring moves away from the positioning frame to a preset position, it can rotate the first polishing roller and the second polishing roller by a preset angle. When the two ring bodies move to the third preset position near the positioning frame, they can move the position of the second polishing roller, and the second polishing roller moves toward the outer ring. The outer ring is rotatably connected to a plurality of first shafts extending into the first polishing port, and the inner ring is rotatably connected to a plurality of second shafts extending into the second polishing port. The first polishing roller is slidably connected to the first shaft, and the second polishing roller is slidably connected to the second shaft. A cavity is formed on one side of the inner ring, and a sliding opening communicating with the second polishing port is formed on the other side of the inner ring. A limiting ring slidably connected to the sliding opening and rotatably connected to the second shaft is provided. A sliding plate is slidably connected to the cavity, and a first spring is connected between the sliding plate and the cavity. A connecting rod rotatably connected to the sliding plate and rotatably connected to the limiting ring is provided. A connecting frame is connected to one side of the outer ring, and a rack is slidably connected to the connecting frame. A second spring is connected between the rack and the connecting frame. A gear is provided on the first shaft, and a ratchet mechanism is provided between the gear and the first shaft. A chain drive is provided between the first shaft and the second shaft. A top contact ring is provided on the bracket.

2. The surface treatment equipment for automotive parts production according to claim 1, characterized in that, The chain drive component includes sprockets mounted on a first shaft and a second shaft, with a drive chain between the two sprockets. A first limiting cover, sleeved on the outside of the sprocket on the first shaft, is connected to the connecting frame. A support plate, rotatably connected to the second shaft, is slidably connected to one side of the inner ring, and a second limiting cover, sleeved on the outside of the sprocket on the second shaft, is connected to one side of the support plate.

3. The surface treatment equipment for automotive parts production according to claim 2, characterized in that, The moving component is rotatably connected to the lead screw on the bracket. A sliding frame that is threadedly connected to the lead screw is connected to the side wall of the outer ring near the lead screw. A first motor is connected to the bracket, and the drive shaft of the first motor is connected to the lead screw.

4. The surface treatment equipment for automotive parts production according to claim 3, characterized in that, The bracket is connected to a spring rod that is connected to the positioning frame. The bottom of the positioning frame is provided with a connecting groove. A traction shaft is rotatably connected in the connecting groove. A third spring is connected between the traction shaft and the connecting groove. A first rope is wound on the lead screw. The other end of the first rope is wound on the traction shaft. Both ends of the traction shaft are provided with connecting sleeves. A second rope is wound on the connecting sleeves. The other end of the second rope is connected to the clamp. The elastic component is a torsion spring, which is connected between the clamp and the connecting frame.

5. The surface treatment equipment for automotive parts production according to claim 1, characterized in that, The drive component includes a second motor connected to one of the inner rings, and a chain drive mechanism is connected between the second motor and one of the drive rollers. A chain drive mechanism is also connected between every two drive rollers.

6. The surface treatment equipment for automotive parts production according to claim 1, characterized in that, The driving component also includes a connection opening on one side of the outer ring, the shaft of the driving roller extends into the connection opening, an active turntable connected to the driving roller is connected to one of the connection openings on the outer ring, and a driven turntable connected to the driving roller is connected to the connection opening on the other outer ring.

7. The surface treatment equipment for automotive parts production according to claim 1, characterized in that, A support rod is connected between the outer ring and the inner ring, and a roller is rotatably connected to the side of the support rod near the bearing component.

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