Reciprocating polishing device for brake calipers

Abstract

The invention relates to the field of caliper finish machining, and particularly discloses a brake caliper reciprocating polishing device which comprises a rack and a brake caliper body. A positioning assembly is arranged at one end of the rack, the positioning assembly comprises a positioning pin which is arranged at one end of the top of the rack and used for being matched with a mounting hole in a brake caliper body in an inserted mode, a threaded hole is formed in the upper end of the positioning pin, and the threaded hole is in threaded connection with a positioning bolt used for pressing the brake caliper body; and a rapid reciprocating polishing mechanism is arranged at one end of the rack. According to the reciprocating polishing device for the brake calipers, efficient polishing of the side wall of the brake caliper body can be achieved through cooperation of the arranged positioning assembly and the rapid reciprocating polishing mechanism, the reciprocating swing motion trail of the polishing block is matched with the shape of the polishing face of the brake caliper body, the polishing uniformity is high, meanwhile, chippings cannot be thrown away too far, and environmental pollution is reduced.

Description

Technical Field

[0001] The present invention relates to the field of caliper finishing, and particularly to a reciprocating grinding device for a brake caliper. Background Art

[0002] Ultra-precision machining is a machining process in which, on ultra-precision machine tools, a relative motion with strict constraints is generated between a part and a tool to perform micro-cutting on a material to obtain extremely high shape accuracy and surface finish. Its accuracy ranges from micrometers to sub-micrometers and even nanometers, and its application scope is becoming increasingly wide, being widely used in high-tech fields, military industries, and civilian industries. Currently, during the production process of brake calipers, in order to ensure that the installation distance between the side wall and the brake disc meets the accuracy requirements, a rotary grinding device is often used for processing. In the prior art, the grinding equipment cuts the side wall of the caliper through a high-speed rotating grinding wheel or grinding block, and relies on the rotational centrifugal force to remove materials and form a flat surface.

[0003] However, the single motion trajectory of the rotating grinding wheel is prone to cause local over-grinding or uneven edges, especially in the thin-wall area of the caliper side wall, which is likely to cause dimensional deviation. In addition, during the rotary grinding process, the centrifugal force is likely to cause debris to fly far away, making it difficult to collect centrally. It is necessary to stop the machine for cleaning, which seriously affects the continuous operation efficiency, not only increasing the cleaning burden, but also possibly causing equipment failures or secondary contamination of workpieces due to debris accumulation.

[0004] Therefore, it is very necessary to propose a reciprocating grinding device for a brake caliper to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art. The present invention proposes a reciprocating grinding device for a brake caliper, which solves the problems of poor grinding effect and difficult debris cleaning existing in the prior art in the background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A reciprocating grinding device for a brake caliper includes a frame and a brake caliper body;

[0008] A positioning component is provided at one end of the frame. The positioning component includes a positioning pin disposed at one end of the top of the frame and used for plugging and mating with the mounting hole on the brake caliper body. A threaded hole is provided at the upper end of the positioning pin, and a positioning bolt for pressing the brake caliper body is threadedly connected to the threaded hole.

[0009] One end of the frame is provided with a rapid reciprocating grinding mechanism. The rapid reciprocating grinding mechanism includes a fixed shaft arranged at one end of the top of the frame. An incomplete gear is rotatably arranged on the fixed shaft. A rack meshing with the incomplete gear is movably arranged at one end of the top of the frame. A fixing plate is arranged on one side of the incomplete gear close to the positioning component. A grinding block is arranged at the bottom of the fixing plate. A turntable corresponding to the rack is rotatably arranged at one end of the top of the frame. One end of the outer periphery of the turntable is movably connected with a traction arm. The end of the traction arm far away from the turntable is movably connected with the side wall of the rack. A first driving source for driving the turntable to rotate is arranged at the bottom of the frame.

[0010] Preferably, a guide rail frame corresponding to the rack is arranged at one end of the top of the frame. A linear guide rail is arranged on the guide rail frame. The rack is movably connected to the linear guide rail.

[0011] Preferably, a second driving source for driving the fixed shaft to lift and lower is arranged at the bottom of the frame. The second driving source is a cylinder, and its output shaft extends to the top of the frame and is fixedly connected to the bottom of the fixed shaft.

[0012] Preferably, a dust removal component is further arranged on the incomplete gear. The dust removal component includes a negative pressure cover penetrating through one side of the incomplete gear close to the positioning component. The incomplete gear is of a hollow structure. A pair of fixing rings arranged up and down are arranged inside the incomplete gear. The fixing rings are coaxially arranged with the incomplete gear. One end of the opposite sides of the pair of fixing rings is provided with teeth, and the teeth are evenly arranged in a surrounding manner. A rotating shaft corresponding to the fixing ring is rotatably arranged on the side wall of the fixed shaft. The rotating shaft is located between the pair of fixing rings. A pair of gears corresponding to the teeth one by one are arranged at one end of the rotating shaft. The gears are rotatably arranged on the outer side of the rotating shaft through one-way bearings, and the rotating directions of the one-way bearings corresponding to the two gears are opposite. A fixed cylinder is fixedly arranged on the side wall of the fixed shaft outside one end of the rotating shaft, and a fan blade is arranged at one end of the rotating shaft located inside the fixed cylinder. The fixed cylinder is communicated with the negative pressure cover through a hose. A dust removal nozzle is communicated with one end of the negative pressure cover close to the positioning component. A dust suction hole is arranged on the side wall of the dust removal nozzle.

[0013] Preferably, a dust-proof net is arranged at one end inside the negative pressure cover.

[0014] Preferably, a waste discharge port extending to the outside of the incomplete gear is arranged at the corresponding position of the bottom of the negative pressure cover and the dust-proof net.

[0015] Preferably, a cleaning component is provided on the incomplete gear. The cleaning component includes a lifting rod vertically and movably connected to one end of the negative pressure cover and corresponding to the impurity discharge port, and the upper end of the lifting rod extends above the incomplete gear. A brush plate corresponding to the dust-proof net is provided at the bottom of the lifting rod. An extrusion arm corresponding to the lifting rod is provided at the upper end of the fixed shaft, and the bottom of the extrusion arm is arc-shaped. A convex ring is provided on the side wall of one end of the lifting rod, and an elastic member is provided between the bottom of the convex ring and the top of the negative pressure cover.

[0016] Preferably, a side plate corresponding to the end of the brush plate is provided on the side wall of the inner cavity of the negative pressure cover. An inclined guide groove is provided on the side wall of the side plate, and a guide block that is movably and guidingly matched with the guide groove is provided at the end of the brush plate.

[0017] Preferably, a roller is rotatably provided at the upper end of the lifting rod.

[0018] Preferably, the dust removal nozzle is arc-shaped and adapted to the brake caliper body, and the dust suction holes are uniformly arranged around one side of the dust removal nozzle close to the positioning component.

[0019] Compared with the prior art, the beneficial effects of the present invention include:

[0020] In this brake caliper reciprocating grinding device, through the cooperation of the set positioning component and the fast reciprocating grinding mechanism, efficient grinding of the side wall of the brake caliper body can be achieved. The movement trajectory of the reciprocating swing of the grinding block is adapted to the shape of the grinding surface of the brake caliper body, with high grinding uniformity. At the same time, the debris will not be thrown too far, reducing environmental pollution. With the dust removal component linked with the reciprocating swing of the grinding block, the absorption of debris in the grinding area is realized during the swing, which can greatly reduce the frequency of separate shutdown cleaning of the debris. The structure is compact and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0022] Figure 1 Schematically shows the structural diagram of the present invention;

[0023] Figure 2 Schematically shows the structural diagram of the bottom view of the present invention;

[0024] Figure 3 Schematically shows the specific structural diagram of the top of the frame of the present invention;

[0025] Figure 4 Schematically shows the present invention Figure 3 The structural diagram in the disassembled state on the basis;

[0026] Figure 5 Schematically shows the structural schematic diagram of the incomplete gear of the present invention;

[0027] Figure 6 Schematically shows the present invention Figure 5 Structural schematic diagram of the bottom view based on the present invention;

[0028] Figure 7 Schematically shows the present invention Figure 5 Structural schematic diagram in the disassembled state based on the present invention;

[0029] Figure 8 Schematically shows the structural schematic diagram of the dust removal nozzle, negative pressure cover, and fixing ring of the present invention in the disassembled state;

[0030] Figure 9 Schematically shows the structural schematic diagram of the dust-proof net, lifting rod, impurity discharge port, and negative pressure cover of the present invention in the disassembled state;

[0031] Figure 10 Schematically shows the structural schematic diagram of the second support cylinder of the present invention.

[0032] Reference numerals in the figure: 1, frame; 2, brake caliper body; 3, hood; 4, first driving source; 5, second driving source; 6, rack; 7, incomplete gear; 8, guide rail frame; 9, fixing plate; 10, receiving groove; 11, positioning bolt; 12, first support cylinder; 13, second support cylinder; 14, turntable; 15, traction arm; 16, positioning pin; 17, extrusion arm; 18, dust removal nozzle; 19, impurity discharge port; 20, roller; 21, fixed shaft; 22, grinding block; 23, dust suction hole; 24, negative pressure cover; 25, fixing ring; 26, tooth; 27, rotating shaft; 28, gear; 29, fan blade; 30, fixed cylinder; 31, hose; 32, lifting rod; 33, dust-proof net; 34, brush plate; 35, side plate; 36, guide groove; 37, guide block; 38, adjusting cylinder; 39, elastic member; 40, convex ring. Detailed implementation manners

[0033] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can propose various interchangeable structural ways and implementation manners. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0034] According to an embodiment of the present invention in combination with Figures 1 - 10 Shown.

[0035] Such as Figures 1 - 6 , Figure 10As shown in the figure, a reciprocating grinding device for a brake caliper includes a frame 1 and a brake caliper body 2. At one end of the top of the frame 1, there is a positioning pin 16 for plugging and mating with the mounting hole on the brake caliper body 2. There are at least two positioning pins 16. At the upper end of the positioning pin 16, there is a threaded hole, and a positioning bolt 11 for pressing the brake caliper body 2 is threadedly connected to the threaded hole. The diameter of the bolt head of the positioning bolt 11 is larger than the mounting hole on the brake caliper body 2, so as to achieve pressing and positioning. At one end of the top of the frame 1, there is a fixed shaft 21. An incomplete gear 7 is rotatably arranged on the fixed shaft 21. At one end of the top of the frame 1, a rack 6 meshing with the incomplete gear 7 is movably arranged. Specifically, at one end of the top of the frame 1, there is a guide rail frame 8 corresponding to the rack 6. A linear guide rail is arranged on the guide rail frame 8, and the rack 6 is movably connected to the linear guide rail. On the side of the incomplete gear 7 close to the positioning component, there is a fixing plate 9. At the bottom of the fixing plate 9, there is a grinding block 22. At one end of the top of the frame 1, a turntable 14 corresponding to the rack 6 is rotatably arranged. At one end of the top of the frame 1, there is a first support cylinder 12 for supporting the turntable 14. A ball is arranged around the top of the first support cylinder 12. The first support cylinder 12 can increase the stability of the rotation of the turntable 14. At the same time, the ball can reduce the wear between the first support cylinder 12 and the turntable 14. One end of the outer periphery of the turntable 14 is movably connected to a traction arm 15 through a pin shaft. The end of the traction arm 15 far from the turntable 14 is movably connected to the side wall of the rack 6 through a pin shaft. At the bottom of the frame 1, there is a first driving source 4 for driving the turntable 14 to rotate. The first driving source 4 is preferably a motor. In order to realize the height adjustment of the incomplete gear 7, at the bottom of the frame 1, there is a second driving source 5 for driving the fixed shaft 21 to lift. The second driving source 5 is a cylinder, and its output shaft extends to the top of the frame 1 and is fixedly connected to the bottom of the fixed shaft 21. The height adjustment of the incomplete gear 7 can not only facilitate the taking and placing of the brake caliper body 2, but also facilitate the adjustment of the pressing degree of the grinding block 22. At one end of the top of the frame 1, there is a second support cylinder 13 for supporting the incomplete gear 7. Inside the side wall of the second support cylinder 13, an adjustment cylinder 38 is vertically movably connected. A ball is arranged around the upper end of the adjustment cylinder 38. The adjustment cylinder 38 is locked to the inner side wall of the second support cylinder 13 through a bolt, which can increase the stability of the rotation of the incomplete gear 7. The ball can reduce the wear between the adjustment cylinder 38 and the incomplete gear 7. At the same time, the movable connection of the adjustment cylinder 38 can adjust the height, so as to adapt to the height adjustment of the incomplete gear 7.

[0036] As Figure 3 、 Figures 5 - 9As shown in the figure, it further includes a dust removal component disposed on the incomplete gear 7. The dust removal component includes a negative pressure cover 24 penetrating through the incomplete gear 7 on the side close to the positioning component. The incomplete gear 7 is of a hollow structure. A pair of fixing rings 25 arranged vertically are provided inside the incomplete gear 7. The fixing rings 25 are coaxially arranged with the incomplete gear 7. At one end of the opposite sides of the pair of fixing rings 25, teeth 26 are provided. The teeth 26 are evenly arranged in a circular pattern. A rotating shaft 27 corresponding to the fixing ring 25 is rotatably arranged on the side wall of the fixed shaft 21. The rotating shaft 27 is located between the pair of fixing rings 25. At one end of the rotating shaft 27, a pair of gears 28 corresponding to the teeth 26 one by one are provided. The gears 28 are rotatably arranged on the outer side of the rotating shaft 27 through one-way bearings, and the rotating directions of the one-way bearings corresponding to the two gears 28 are opposite. A fixed cylinder 30 is fixed on the side wall of the fixed shaft 21 outside one end of the rotating shaft 27, and a fan blade 29 is provided at one end of the rotating shaft 27 located inside the fixed cylinder 30. The fixed cylinder 30 is communicated with the negative pressure cover 24 through a hose 31. One end of the negative pressure cover 24 close to the positioning component is communicated with a dust removal nozzle 18. The side wall of the dust removal nozzle 18 is provided with dust suction holes 23. The dust removal nozzle 18 is arc-shaped and adapted to the brake caliper body 2. The dust suction holes 23 are evenly arranged in a circular pattern on the side of the dust removal nozzle 18 close to the positioning component. In order to prevent debris from entering the inside of the incomplete gear 7, a dust-proof net 33 is provided at one end inside the negative pressure cover 24. A waste discharge port 19 extending to the outside of the incomplete gear 7 is provided at the corresponding position of the bottom of the negative pressure cover 24 and the dust-proof net 33. At one end of the top of the frame 1, a receiving groove 10 corresponding to the waste discharge port 19 and having an open top is provided. In order to avoid blockage of the dust-proof net 33, a lifting rod 32 corresponding to the waste discharge port 19 is vertically movably connected to one end of the negative pressure cover 24, and the upper end of the lifting rod 32 extends above the incomplete gear 7. A brush plate 34 corresponding to the dust-proof net 33 is provided at the bottom of the lifting rod 32. An extrusion arm 17 corresponding to the lifting rod 32 is provided at the upper end of the fixed shaft 21. The bottom of the extrusion arm 17 is arc-shaped. In order to reduce friction, a roller 20 is rotatably arranged at the upper end of the lifting rod 32. The roller 20 is in rolling cooperation with the bottom wall of the extrusion arm 17. A convex ring 40 is provided on the side wall of one end of the lifting rod 32. An elastic member 39 is provided between the bottom of the convex ring 40 and the top of the negative pressure cover 24. The elastic member 39 is preferably a spring and is sleeved outside the lifting rod 32. In order to reduce the back-scraping of debris when the brush plate 34 rises, a side plate 35 corresponding to the end of the brush plate 34 is provided on the side wall of the inner cavity of the negative pressure cover 24. An inclined guide groove 36 is provided on the side wall of the side plate 35. A guide block 37 is provided at the end of the brush plate 34 and is in movable guiding cooperation with the guide groove 36.

[0037] It should be noted that a machine cover 3 is provided at the upper end of the frame 1. The machine cover 3 is used to cover the processing area, which can increase safety. At the same time, it is also equipped with a controller, which adopts conventional technical means and will not be elaborated too much.

[0038] During use, the second driving source 5 drives the incomplete gear 7 to rise synchronously through the fixed shaft 21, places the brake caliper body 2 at one end of the top of the frame 1, makes the mounting holes on the brake caliper body 2 correspond to the positioning pins 16, and then inserts them to achieve the preliminary positioning of the brake caliper body 2. Then, the positioning bolt 11 is screwed into the top of the positioning pin 16 from the upper end of the mounting hole of the brake caliper body 2, so that the positioning bolt 11 limits and presses the brake caliper body 2. After that, the second driving source 5 drives the incomplete gear 7 to move downward through the fixed shaft 21, so that the grinding block 22 fits on the grinding surface of the brake caliper body 2. Adjusting the upper end of the adjusting cylinder 38 to fit the bottom of the incomplete gear 7 can increase the stability of the rotation of the incomplete gear 7. Then, control the first driving source 4 to drive the turntable 14 to rotate. During this period, the first support cylinder 12 supports the turntable 14, increasing the stability. The turntable 14 reciprocally pulls the rack 6 to move horizontally through the traction arm 15. The reciprocating displacement of the rack 6 realizes the positive and negative rotation of the incomplete gear 7. Furthermore, the incomplete gear 7 drives the grinding block 22 to reciprocally grind the grinding surface of the brake caliper body 2 at a high speed through the fixing plate 9. Since the incomplete gear 7 is rotatably connected to the fixed shaft 21, the fixed ring 25 reciprocally rotates following the incomplete gear 7. Furthermore, the teeth 26 on the fixed ring 25 and the gear 28 have relative displacement. Since a pair of gears 28 are arranged on the rotating shaft 27 through one-way bearings, and the two one-way bearings rotate in opposite directions, the rotating shaft 27 can always rotate in one direction when the teeth 26 reciprocally rotate. Specifically, when the fixed ring 25 rotates in one direction, the teeth 26 on one of the fixed rings 25 and the corresponding gear 28 play a role, and the other gear 28 will be driven by the corresponding teeth 26 to rotate relative to the rotating shaft 27. At this time, this gear 28 does not play a role. When the fixed ring 25 rotates in the other direction, it is the opposite. Furthermore, the fan blade 29 continuously rotates inside the negative pressure cover 24 and the hose 31 to generate negative pressure. Some of the debris generated by grinding can enter the dust removal nozzle 18 through the dust suction hole 23 and then be blocked by the dustproof net 33. When the negative pressure cover 24 reciprocally swings following the incomplete gear 7, it will drive the convex ring 40 to move following. When the roller 20 at the upper end of the convex ring 40 passes through the pressing arm 17, it will be pressed downward, and the elastic member 39 is compressed. The lifting rod 32 drives the brush plate 34 to move downward, and the brush plate 34 sweeps the side wall of the dustproof net 33. The debris falls from the debris discharge port 19 and is collected by the receiving groove 10. Moreover, when the brush plate 34 moves downward, due to the action of the guide block 37 and the guide groove 36, the brush plate 34 gradually approaches the dustproof net 33. When the brush plate 34 rises, it gradually moves away from the dustproof net 33, which can reduce the upward scraping of the debris on the side of the dustproof net 33. Repeating this way can avoid the blockage of the dustproof net 33. When the negative pressure cover 24 swings following the incomplete gear 7, the hose 31 expands and contracts to ensure that the negative pressure cover 24 is always communicated with the fixed cylinder 30.

[0039] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A reciprocating grinding device for a brake caliper, characterized in that: It includes a frame and a brake caliper body; A positioning assembly is provided at one end of the frame, and the positioning assembly includes a positioning pin provided at one end of the top of the frame and used for plugging and matching with the mounting hole on the brake caliper body, and a threaded hole is provided at the upper end of the positioning pin, and a positioning bolt for pressing the brake caliper body is threadedly connected to the threaded hole; A fast reciprocating grinding mechanism is provided at one end of the frame, and the fast reciprocating grinding mechanism includes a fixed shaft arranged at one end of the top of the frame, an incomplete gear is rotatably arranged on the fixed shaft, a rack meshing with the incomplete gear is movably arranged at one end of the top of the frame, a fixed plate is provided on the side of the incomplete gear close to the positioning component, a grinding block is provided at the bottom of the fixed plate, a turntable corresponding to the rack is rotatably provided at one end of the top of the frame, a traction arm is movably connected to one end of the outer periphery of the turntable, and the end of the traction arm away from the turntable is movably connected to the side wall of the rack, and a first driving source for driving the turntable to rotate is provided at the bottom of the frame.

2. A brake caliper reciprocating grinding device according to claim 1, characterized in that: A guide rail frame corresponding to the rack is arranged at one end of the top of the frame, a linear guide rail is arranged on the guide rail frame, and the rack is movably connected to the linear guide rail.

3. A brake caliper reciprocating grinding device according to claim 1, characterized in that: A second driving source for driving the fixed shaft to rise and fall is arranged at the bottom of the frame. The second driving source is a cylinder, and its output shaft extends to the top of the frame and is fixedly connected to the bottom of the fixed shaft.

4. A brake caliper reciprocating grinding device according to claim 1, characterized in that: It also includes a dust removal component arranged on the incomplete gear, the dust removal component includes a negative pressure cover that is arranged through the incomplete gear on one side close to the positioning component, the incomplete gear is a hollow structure, a pair of fixing rings arranged up and down are arranged on the inner side of the incomplete gear, the fixing ring is arranged coaxially with the incomplete gear, one end of the pair of fixing rings on the opposite side is provided with gear teeth, the gear teeth are evenly arranged around, a rotating shaft corresponding to the fixing ring is rotatably arranged on the side wall of the fixed shaft, the rotating shaft is located between the pair of fixing rings, a pair of gears corresponding to the gear teeth are arranged at one end of the rotating shaft, the gears are rotatably arranged on the outside of the rotating shaft through a one-way bearing, and the rotation directions of the one-way bearings corresponding to the two gears are opposite, a fixing cylinder located outside one end of the rotating shaft is fixed on the side wall of the fixed shaft, and a fan blade is arranged on the end of the rotating shaft located inside the fixing cylinder, the fixing cylinder and the negative pressure cover are connected through a hose, a dust removal nozzle is connected to the end of the negative pressure cover close to the positioning component, and a dust suction hole is arranged on the side wall of the dust removal nozzle.

5. A brake caliper reciprocating grinding device according to claim 4, characterized in that: A dustproof net is arranged at one end of the inner side of the negative pressure cover.

6. A brake caliper reciprocating grinding device according to claim 5, characterized in that: A debris discharge port extending to the outside of the incomplete gear is arranged at a position corresponding to the dustproof net at the bottom of the negative pressure cover.

7. A brake caliper reciprocating grinding device according to claim 6, characterized in that: A cleaning assembly is provided on the incomplete gear, and the cleaning assembly includes a lifting rod which is vertically movably connected to one end of the negative pressure cover and corresponds to the debris discharge port, and the upper end of the lifting rod extends to the top of the incomplete gear, and a brush plate corresponding to the dustproof net is provided at the bottom of the lifting rod, and an extrusion arm corresponding to the lifting rod is provided at the upper end of the fixed shaft, and the bottom of the extrusion arm is arc-shaped, and a convex ring is provided on the side wall of one end of the lifting rod, and an elastic member is provided between the bottom of the convex ring and the top of the negative pressure cover.

8. A brake caliper reciprocating grinding device according to claim 7, characterized in that: The side wall of the inner cavity of the negative pressure hood is provided with a side plate corresponding to the end of the brush plate, the side wall of the side plate is provided with an inclined guide groove, and the end of the brush plate is provided with a guide block that cooperates with the guide groove for movable guidance.

9. The brake caliper reciprocating grinding device according to claim 7, characterized in that: A roller is rotatably arranged on the upper end of the lifting rod.

10. The brake caliper reciprocating grinding device according to claim 4, characterized in that: The dust removal nozzle is arc-shaped and is adapted to the brake caliper body, and the dust suction holes are evenly arranged around the side of the dust removal nozzle close to the positioning component.

Images