Brake disc polishing device
By designing automated material distribution, transmission and grinding components, the existing brake disc grinding methods are solved, and an efficient and safe brake disc grinding process is achieved.
Patent Information
- Application Number
- CN202510487403.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing brake disc grinding method is inefficient and has the risk of brake disc falling, which requires manual handling and fixation.
A brake disc grinding device including a material separation assembly, a conveying assembly and a grinding assembly is designed. The automatic movement and fixation of the brake disc is achieved through the material separation assembly and a conveying assembly. The grinding assembly is used in conjunction with the grinder to improve grinding efficiency.
The automatic grinding process of the brake disc is realized, the grinding efficiency is improved, the risks and time of manual operation are reduced, and safety is enhanced.
Smart Images

Figure CN120134170A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of grinding devices, and particularly relates to a brake disc grinding device. Background Art
[0002] At present, the automotive industry is in a stage of rapid development. Therefore, the demand for brake discs is relatively large. Since brake discs play a key role in automotive braking, the quality of brake discs will affect the braking effect and the safety factor of the vehicle to a certain extent. During the processing and subsequent maintenance of brake discs, a grinding device is usually required to grind and adjust the brake discs to improve the braking performance of the brake discs.
[0003] In the existing methods for grinding brake discs, most of them place the brake discs on the processing table and then fix them by means of screws and clamping blocks. Then, an operator holds a grinding machine by hand to grind the surface of the brake disc. This method requires manual handling of the brake disc to the processing table, which is prone to the risk of the brake disc falling, and the grinding efficiency is very low. Summary of the Invention
[0004] The purpose of this application is to provide a brake disc grinding device, which realizes the movement of the brake disc through the material distribution component and the transmission component, and then the grinding component enables the grinding machine to grind the brake disc, improving the grinding efficiency of the brake disc.
[0005] To achieve the above purpose, this application provides the following technical solutions: A brake disc grinding device includes a device body. Support plates are fixedly connected to both sides of the device body. Mounting holes are provided on the support plates. A side plate is fixedly connected to the device body. A support plate is fixedly connected to the top of the side plate. A control panel is fixedly installed on the surface of the support plate. A docking seat is fixedly installed on the device body. A rotating rod is rotatably connected to the docking seat. A pair of arm plates are fixedly connected to the rotating rod. The other ends of the arm plates are fixedly connected to a limit seat. The limit seat is fixedly installed on a frame plate. A grinding machine is installed on the frame plate. It also includes a material distribution component, a transmission component, and a grinding component. The material distribution component is arranged on the support plate for placing the brake disc. The transmission component is arranged at the bottom of the support plate and is used in cooperation with the material distribution component. The grinding component is arranged on the device body and is used in cooperation with the grinding machine.
[0006] Preferably, the material distribution component includes a limit frame fixedly installed on the support plate. Rotating shafts are rotatably connected to the four corners of the support plate. A first baffle is fixedly connected to the middle position of the rotating shaft. A second baffle is fixedly connected to the top of the rotating shaft.
[0007] Preferably, one side of the first baffle is fixedly connected with a side seat, the side seat is fixedly connected with a first pin, the first pin is rotatably connected with a linkage plate, the top surface of the linkage plate is fixedly connected with a second pin, the second pin is sleeved with a telescopic rod, the other end of the telescopic rod is rotatably connected to a fixed rod, and the bottom end of the fixed rod is fixedly connected to the support plate.
[0008] Preferably, the conveying assembly includes a first through groove opened at the bottom surface position of the device body, a pair of first shaft seats are fixedly connected to the bottom surface position of the device body, a threaded rod is rotatably connected between the pair of first shaft seats, one end of the threaded rod is fixedly connected to the output end of a first motor, and the first motor is fixedly installed at the bottom surface position of the device body.
[0009] Preferably, a socket is threadedly connected to the threaded rod, the top end of the socket extends to the top surface position of the device body through the first through groove, the top end of the socket is fixedly connected to a loading plate, a pair of second through grooves are opened on the loading plate, a bracket is fixedly connected to the bottom surface position of the loading plate, a second motor is fixedly installed on the bracket, the output end of the second motor is fixedly connected to a main shaft, and the top end of the main shaft is fixedly connected to a convex disc.
[0010] Preferably, a push plate is rotatably connected to the convex disc, the other end of the push plate is rotatably connected to a hinge seat, the hinge seat is fixedly connected to a sliding plate, both ends of the sliding plate are slidably connected to sliding rods, and both ends of the sliding rods are fixedly connected to second shaft seats, and the second shaft seats are fixedly connected to the bottom surface position of the loading plate.
[0011] Preferably, a docking plate is fixedly connected to the middle position of the top surface of the sliding plate, the top end of the docking plate extends to the top surface position of the loading plate through the second through groove, the top end of the docking plate is fixedly connected to a clamping plate, sliding seats are fixedly connected to both sides of the bottom surface of the loading plate, the sliding seats are slidably connected to guide rods, and both ends of the guide rods are fixedly connected to third shaft seats, and the bottom ends of the third shaft seats are fixedly connected to the device body.
[0012] Preferably, the grinding assembly includes a side rod fixedly connected to the arm plate, the other end of the side rod is rotatably connected to an adjusting plate, the other end of the adjusting plate is fixedly connected to a cylinder, and one end of the cylinder is rotatably connected to a clamping seat.
[0013] Preferably, the bottom end of the clamping seat is fixedly connected to a base, a pair of pulleys are rotatably connected to the bottom end position of the base, the pair of pulleys are slidably connected to a limiting rod, both ends of the limiting rod are fixedly connected to a positioning seat, and the bottom surface of the positioning seat is fixedly connected to the device body.
[0014] Preferably, one side of the card seat is fixedly connected with a cylinder, the other end of the cylinder is fixedly connected to an L-shaped plate, and the L-shaped plate is fixedly installed on the docking seat.
[0015] In summary, the present invention has the following beneficial effects: 1. The structure of the present invention is reasonable. When it is necessary to discharge the brake disc, the brake disc is placed inside the limit frame, and then the bottom position of the brake disc fits against the second baffle. The telescopic rod pushes the second pin on the linkage plate. By pushing the second pin, the linkage plate is moved. Both ends of the linkage plate are rotatably connected to the first pin. By moving the linkage plate, the side seat on the first pin is moved, so as to facilitate the rotation of the rotating shaft on the first baffle, and facilitate the brake disc to fall onto the first baffle. Then the second baffle blocks the previous brake disc, and through the rotation of the first baffle, the brake disc on the first baffle falls onto the conveying component through the support plate and moves; 2. In the present invention, when the brake disc falls onto the load plate, the second motor on the bracket operates. By the operation of the second motor, the main shaft rotates, and the rotation of the main shaft drives the cam disc to rotate. A push plate is rotatably connected to the cam disc, and the other end of the push plate is rotatably connected to the hinge seat. The rotation of the cam disc pushes the slide plate on the hinge seat to move through the push plate. The movement of the slide plate drives the clamping plate to clamp and fix the brake disc through the docking plate. Then, by the operation of the first motor, the threaded rod rotates, and the rotation of the threaded rod drives the entire load plate to move through the socket, so that the brake disc moves to the bottom position of the frame plate; 3. In the present invention, when it is necessary to grind the brake disc, the cylinder on the L-shaped plate operates. One end of the cylinder is fixedly connected to the card seat. By pushing the card seat through the cylinder, the bottom end of the card seat is fixedly connected to the base, and the bottom end of the base is rotatably connected with a pulley. By moving the card seat, the pulley on the base slides on the limit rod, increasing the stability of the movement of the card seat. The movement of the card seat drives the arm plate to rotate through the adjusting plate, so as to facilitate the rotation of the rotating rod on the arm plate on the docking seat, so that the grinding machine grinds the brake disc. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the device body; Figure 2 It is a side three-dimensional structural schematic diagram of the device body; Figure 3 It is a schematic perspective view of the device body from the bottom up; Figure 4 It is a schematic perspective view of the pallet; Figure 5 It is a schematic perspective view of the carrier plate from the bottom up; Figure 6 It is a schematic perspective view of the carrier plate; Figure 7 It is a schematic perspective view of the docking seat; Figure 8 It is a schematic perspective view of the positioning seat.
[0018] In the figure: 1. Device body; 101. Support plate; 102. Mounting hole; 103. Side plate; 104. Pallet; 105. Control panel; 106. Docking seat; 107. Rotating rod; 108. Arm plate; 109. Limiting seat; 110. Frame plate; 112. Grinder; 2. Limiting frame; 201. Rotating shaft; 202. First baffle; 203. Second baffle; 204. Side seat; 205. First pin; 206. Linking plate; 207. Second pin; 208. Telescopic rod; 209. Fixed rod; 3. First through groove; 301. First shaft seat; 302. Threaded rod; 303. First motor; 304. Sleeve seat; 305. Carrier plate; 306. Second through groove; 307. Bracket; 308. Second motor; 309. Main shaft; 310. Convex disk; 311. Pushing plate; 312. Hinge seat; 313. Slide plate; 314. Slide rod; 315. Second shaft seat; 316. Docking plate; 317. Clamping plate; 318. Slide seat; 319. Guide rod; 320. Third shaft seat; 4. Side rod; 401. Adjusting plate; 402. Cylinder; 403. Clamping seat; 404. Base; 405. Pulley; 406. Limiting rod; 407. Positioning seat; 408. Cylinder; 409. L-shaped plate. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] Embodiment: Refer to Figure 1 - Figure 8A brake disc grinding device shown in the figure includes a device body 1. On both sides of the device body 1, there are fixedly connected support plates 101. Installation holes 102 are provided on the support plates 101. On the device body 1, there is fixedly connected a side plate 103. At the top of the side plate 103, there is fixedly connected a support plate 104. On the surface of the support plate 104, there is fixedly installed a control panel 105. On the device body 1, there is fixedly installed a docking seat 106. A rotating rod 107 is rotatably connected to the docking seat 106. A pair of arm plates 108 are fixedly connected to the rotating rod 107. The other ends of the arm plates 108 are fixedly connected to a limit seat 109. The limit seat 109 is fixedly installed on a frame plate 110. A grinding machine 112 is installed on the frame plate 110. It also includes a material distribution component, a conveying component, and a grinding component. The material distribution component is arranged on the support plate 104 for feeding the brake disc. The conveying component is arranged at the bottom of the support plate 104 to cooperate with the material distribution component. The grinding component is arranged on the device body 1 to cooperate with the grinding machine 112.
[0021] Specifically, it should be noted here that the grinding machine 112, the first motor 303, and the second motor 308 are all electrically connected to the control panel 105 through wires. The specific working principles among them are all cited from the prior art and will not be elaborated here. The operation of the grinding machine 112 facilitates the grinding work of the brake disc.
[0022] As an implementation mode in this embodiment, the material distribution component includes a limit frame 2 fixedly installed on the support plate 104. Rotating shafts 201 are rotatably connected to the four corners of the support plate 104. A first baffle 202 is fixedly connected to the middle position of the rotating shaft 201. A second baffle 203 is fixedly connected to the top of the rotating shaft 201. A side seat 204 is fixedly connected to one side of the first baffle 202. A first pin 205 is fixedly connected to the side seat 204. A linkage plate 206 is rotatably connected to the first pin 205. A second pin 207 is fixedly connected to the top surface of the linkage plate 206. A telescopic rod 208 is sleeved on the second pin 207. The other end of the telescopic rod 208 is rotatably connected to a fixed rod 209. The bottom end of the fixed rod 209 is fixedly connected to the support plate 104.
[0023] Specifically, when it is necessary to feed the brake disc, place the brake disc inside the limit frame 2. Then, the bottom of the brake disc is attached to the second baffle 203. The telescopic rod 208 pushes the second pin 207 on the linkage plate 206. By pushing the second pin 207, the linkage plate 206 is moved. The two ends of the linkage plate 206 are rotatably connected to the first pin 205. By moving the linkage plate 206, the side seat 204 on the first pin 205 is moved, so as to facilitate the rotation of the rotating shaft 201 on the first baffle 202, and facilitate the brake disc to fall onto the first baffle 202. Then, the second baffle 203 blocks the previous brake disc. By the rotation of the first baffle 202, the brake disc on the first baffle 202 falls onto the conveying component through the support plate 104 and moves.
[0024] As an implementation manner in this embodiment, the conveying component includes a first through groove 3 opened at the bottom surface position of the device body 1. A pair of first shaft seats 301 are fixedly connected to the bottom surface position of the device body 1. A threaded rod 302 is rotatably connected between the pair of first shaft seats 301. One end of the threaded rod 302 is fixedly connected to the output end of the first motor 303. The first motor 303 is fixedly installed at the bottom surface position of the device body 1. A socket 304 is threadedly connected to the threaded rod 302. The top end of the socket 304 extends to the top surface position of the device body 1 through the first through groove 3. The top end of the socket 304 is fixedly connected to the carrier plate 305. A pair of second through grooves 306 are opened on the carrier plate 305. A support 307 is fixedly connected to the bottom surface position of the carrier plate 305. A second motor 308 is fixedly installed on the support 307. The output end of the second motor 308 is fixedly connected to a main shaft 309. The top end of the main shaft 309 is fixedly connected to a convex disc 310. A push plate 311 is rotatably connected to the convex disc 310. The other end of the push plate 311 is rotatably connected to a hinge seat 312. The hinge seat 312 is fixedly connected to a sliding plate 313. The two ends of the sliding plate 313 are slidably connected to sliding rods 314. The two ends of the sliding rods 314 are fixedly connected to second shaft seats 315. The second shaft seats 315 are fixedly connected to the bottom surface position of the carrier plate 305. A docking plate 316 is fixedly connected to the middle position of the top surface of the sliding plate 313. The top end of the docking plate 316 extends to the top surface position of the carrier plate 305 through the second through groove 306. The top end of the docking plate 316 is fixedly connected to a clamping plate 317. Slide seats 318 are fixedly connected to both sides of the bottom surface of the carrier plate 305. The slide seats 318 are slidably connected to guide rods 319. The two ends of the guide rods 319 are fixedly connected to third shaft seats 320. The bottom ends of the third shaft seats 320 are fixedly connected to the device body 1.
[0025] Specifically, when the brake disc drops onto the loading plate 305, the second motor 308 on the bracket 307 operates. Through the operation of the second motor 308, the main shaft 309 rotates. The rotation of the main shaft 309 drives the cam disc 310 to rotate. A push plate 311 is rotatably connected to the cam disc 310, and the other end of the push plate 311 is rotatably connected to the hinge seat 312. The rotation of the cam disc 310 pushes the slide plate 313 on the hinge seat 312 to move through the push plate 311. The movement of the slide plate 313 drives the clamping plate 317 to clamp and fix the brake disc through the docking plate 316. Then, through the operation of the first motor 303, the threaded rod 302 rotates. The rotation of the threaded rod 302 drives the entire loading plate 305 to move through the socket 304, so that the brake disc moves to the bottom position of the rack plate 110.
[0026] As an implementation manner in this embodiment, the grinding assembly includes a side rod 4 fixedly connected to the arm plate 108. The other end of the side rod 4 is rotatably connected to an adjusting plate 401. The other end of the adjusting plate 401 is fixedly connected to a column 402. One end of the column 402 is rotatably connected to a clamping seat 403. The bottom end of the clamping seat 403 is fixedly connected to a base 404. A pair of pulleys 405 are rotatably connected to the bottom end of the base 404. The pair of pulleys 405 are slidably connected to a limiting rod 406. Both ends of the limiting rod 406 are fixedly connected to a positioning seat 407. The bottom surface of the positioning seat 407 is fixedly connected to the device body 1. One side of the clamping seat 403 is fixedly connected to a cylinder 408. The other end of the cylinder 408 is fixedly connected to an L-shaped plate 409. The L-shaped plate 409 is fixedly installed on the docking seat 106.
[0027] Specifically, when grinding the brake disc is required, the cylinder 408 on the L-shaped plate 409 operates. One end of the cylinder 408 is fixedly connected to the clamping seat 403. The clamping seat 403 is pushed by the cylinder 408. The bottom end of the clamping seat 403 is fixedly connected to the base 404, and a pulley 405 is rotatably connected to the bottom end of the base 404. Through the movement of the clamping seat 403, the pulley 405 on the base 404 slides on the limiting rod 406, increasing the stability of the movement of the clamping seat 403. The movement of the clamping seat 403 drives the arm plate 108 to rotate through the adjusting plate 401, so as to facilitate the rotation of the rotating rod 107 on the arm plate 108 on the docking seat 106, enabling the grinding machine 112 to grind the brake disc.
[0028] Working principle of the present invention: When it is necessary to feed the brake disc, place the brake disc inside the limiting frame 2, and then the bottom of the brake disc fits on the second baffle 203. The telescopic rod 208 pushes the second pin 207 on the linkage plate 206. By pushing the second pin 207, the linkage plate 206 moves. Both ends of the linkage plate 206 are rotatably connected to the first pin 205. By the movement of the linkage plate 206, the side seat 204 on the first pin 205 moves, so as to facilitate the rotation of the rotating shaft 201 on the first baffle 202, and facilitate the brake disc to fall onto the first baffle 202. Then the second baffle 203 blocks the previous brake disc. By the rotation of the first baffle 202, the brake disc on the first baffle 202 falls onto the conveying assembly through the support plate 104 and moves; When the brake disc falls onto the loading plate 305, the second motor 308 on the bracket 307 operates. By the operation of the second motor 308, the main shaft 309 rotates. The rotation of the main shaft 309 drives the cam disc 310 to rotate. A push plate 311 is rotatably connected to the cam disc 310, and the other end of the push plate 311 is rotatably connected to the hinge seat 312. The rotation of the cam disc 310 pushes the sliding plate 313 on the hinge seat 312 to move through the push plate 311. The movement of the sliding plate 313 drives the clamping plate 317 through the docking plate 316 to clamp and fix the brake disc. Then, by the operation of the first motor 303, the threaded rod 302 rotates. The rotation of the threaded rod 302 drives the entire loading plate 305 to move through the socket 304, so that the brake disc moves to the bottom position of the frame plate 110; When it is necessary to grind the brake disc, the cylinder 408 on the L-shaped plate 409 operates. One end of the cylinder 408 is fixedly connected to the clamping seat 403. By the cylinder 408, the clamping seat 403 is pushed. The bottom end of the clamping seat 403 is fixedly connected to the base 404, and the bottom end of the base 404 is rotatably connected to a pulley 405. By the movement of the clamping seat 403, the pulley 405 on the base 404 slides on the limiting rod 406, increasing the stability of the movement of the clamping seat 403. The movement of the clamping seat 403 drives the arm plate 108 to rotate through the adjusting plate 401, so as to facilitate the rotation of the rotating rod 107 on the arm plate 108 on the docking seat 106, enabling the grinding machine 112 to grind the brake disc.
[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A brake disc grinding device, comprising a device body (1), characterized in that: Support plates (101) are fixedly connected to both sides of the device body (1), and mounting holes (102) are provided on the support plates (101). Side plates (103) are fixedly connected to the device body (1), and a support plate (104) is fixedly connected to the top of the side plate (103), and a control panel (105) is fixedly installed on the surface of the support plate (104). A docking seat (106) is fixedly installed on the device body (1), and a rotating rod (107) is rotatably connected to the docking seat (106). A pair of arm plates (108) are fixedly connected to the rotating rod (107), and the other end of the arm plate (108) is fixedly connected to a limit seat (109), and the limit seat (109) is fixedly installed on a frame plate (110). A grinder (112) is installed on the frame plate (110); It also includes a material dividing component, a conveying component and a grinding component. The material dividing component is arranged on the support plate (104) for discharging the brake disc, the conveying component is arranged on the bottom surface of the support plate (104) for use in conjunction with the material dividing component, and the grinding component is arranged on the device body (1) for use in conjunction with the grinder (112).
2. A brake disc grinding device according to claim 1, characterized in that: The material distribution assembly comprises a limiting frame (2) fixedly mounted on the support plate (104); the four corners of the support plate (104) are rotatably connected to a rotating shaft (201); the middle of the rotating shaft (201) is fixedly connected to a first baffle (202); and the top of the rotating shaft (201) is fixedly connected to a second baffle (203).
3. A brake disc grinding device according to claim 2, characterized in that: A side seat (204) is fixedly connected to one side of the first baffle plate (202); a first pin column (205) is fixedly connected to the side seat (204); a linkage plate (206) is rotatably connected to the first pin column (205); a second pin column (207) is fixedly connected to the top surface of the linkage plate (206); a telescopic rod (208) is sleeved on the second pin column (207); the other end of the telescopic rod (208) is rotatably connected to a fixed rod (209); and the bottom end of the fixed rod (209) is fixedly connected to the support plate (104).
4. A brake disc grinding device according to claim 1, characterized in that: The transmission assembly comprises a first through slot (3) provided at the bottom surface of the device body (1); a pair of first shaft seats (301) are fixedly connected at the bottom surface of the device body (1); a threaded rod (302) is rotatably connected between the pair of first shaft seats (301); one end of the threaded rod (302) is fixedly connected to the output end of a first motor (303); and the first motor (303) is fixedly mounted at the bottom surface of the device body (1).
5. A brake disc grinding device according to claim 4, characterized in that: A sleeve (304) is threadedly connected to the threaded rod (302); the top end of the sleeve (304) extends to the top surface of the device body (1) through the first through slot (3); the top end of the sleeve (304) is fixedly connected to a carrier plate (305); a pair of second through slots (306) are provided on the carrier plate (305); a bracket (307) is fixedly connected to the bottom surface of the carrier plate (305); a second motor (308) is fixedly mounted on the bracket (307); an output end of the second motor (308) is fixedly connected to a spindle (309); and a top end of the spindle (309) is fixedly connected to a flange (310).
6. A brake disc grinding device according to claim 5, characterized in that: A push plate (311) is rotatably connected to the convex disc (310), the other end of the push plate (311) is rotatably connected to a hinge seat (312), the hinge seat (312) is fixedly connected to a slide plate (313), both ends of the slide plate (313) are slidably connected to a slide bar (314), both ends of the slide bar (314) are fixedly connected to a second shaft seat (315), and the second shaft seat (315) is fixedly connected to the bottom surface of the carrier plate (305).
7. A brake disc grinding device according to claim 6, characterized in that: A docking plate (316) is fixedly connected to the middle of the top surface of the slide plate (313); the top of the docking plate (316) extends to the top surface of the carrier plate (305) through the second through slot (306); a clamping plate (317) is fixedly connected to the top of the docking plate (316); sliding seats (318) are fixedly connected to both sides of the bottom surface of the carrier plate (305); the sliding seats (318) are slidably connected to a guide rod (319); both ends of the guide rod (319) are fixedly connected to a third shaft seat (320); and the bottom end of the third shaft seat (320) is fixedly connected to the device body (1).
8. A brake disc grinding device according to claim 2, characterized in that: The grinding assembly comprises a side rod (4) fixedly connected to the arm plate (108); the other end of the side rod (4) is rotatably connected to an adjustment plate (401); the other end of the adjustment plate (401) is fixedly connected to a column (402); one end of the column (402) is rotatably connected to a holder (403).
9. A brake disc grinding device according to claim 8, characterized in that: The bottom end of the card holder (403) is fixedly connected to the base (404); the bottom end of the base (404) is rotatably connected to a pair of pulleys (405); the pair of pulleys (405) are slidably connected to a limit rod (406); both ends of the limit rod (406) are fixedly connected to a positioning seat (407); and the bottom surface of the positioning seat (407) is fixedly connected to the device body (1).
10. A brake disc grinding device according to claim 9, characterized in that: A cylinder (408) is fixedly connected to one side of the clamping seat (403), and the other end of the cylinder (408) is fixedly connected to an L-shaped plate (409), and the L-shaped plate (409) is fixedly mounted on the docking seat (106).