Brake lining production process and supporting assembly

Abstract

The brake lining production process comprises the following steps that S1, a proper friction material, a binding agent and a functional additive are selected according to the requirements of a brake lining and reasonably proportioned, the materials are put into a mixer to be fully mixed and then guided into a mold to be subjected to hot press molding, and a pressed brake lining blank is cured; s2, the cured brake lining is subjected to cutting, grinding, drilling, paint spraying and surface nitriding treatment; s3, whether cracks, air holes and material shortage defects exist on the surface of the brake lining or not is checked, and the flatness, smoothness, size and friction performance of the brake lining on the surface are detected; and S4, a brake pad matched with the brake lining is pressed to the inner arc face of the fixing ring through an integration device, then the inner arc face of the brake pad is evenly coated with adhesive glue through the integration device, and then the outer arc face of the brake lining and the brake pad coated with the adhesive glue are bonded. The manual participation degree is reduced, and the assembly efficiency of the brake lining is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive brake pad processing technology, and in particular to a brake pad manufacturing process and support assembly. Background Technology

[0002] Automotive brake pads are friction braking materials mounted on the backing plate of brake discs. They are part of the brake pad assembly and are the key component that directly contacts the brake disc or brake drum, generating friction to achieve vehicle braking. Retaining rings are used to secure the brake pads or brake linings to the brake calipers or brake shoes, ensuring they maintain the correct position and orientation during braking. This allows the brake pads to accurately engage with the brake disc or brake drum for reliable braking performance.

[0003] In the existing technology, when assembling automotive brake pads, the brake pads must first be tightly attached to the inside of the retaining ring and bonded with adhesive. Then, the brake pads are bonded to the inside of the brake pads. The entire process is done manually, which increases the workload of workers and reduces the assembly efficiency of brake pads. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a brake pad manufacturing process and a support assembly.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a brake pad manufacturing process, the process steps of which are as follows: S1. Select high-performance friction materials, suitable binders, and functional additives according to the performance requirements of brake pads and make reasonable proportions. Then, put them into a mixer for thorough mixing. After that, pour the mixed materials into a mold and hot press them to form brake pad blanks. Then, put the pressed brake pad blanks into an oven for curing treatment. S2. According to the manufacturing requirements of brake pads, the cured brake pads are machined by cutting, grinding, drilling and other processes, and the surface of the brake pads is painted and nitrided. S3. Inspect the surface of the brake pads for defects such as cracks, pores, and missing material. Check the flatness, smoothness, size, and friction performance of the brake pads. S4. Using the integration device, press the brake pad that mates with the brake lining onto the inner arc surface of the retaining ring. Then, use the integration device to evenly apply adhesive to the inner arc surface of the brake pad. Finally, use the integration device to bond the outer arc surface of the brake lining to the brake pad coated with adhesive.

[0006] By adopting the above technical solution, high-performance friction materials are selected and rationally proportioned according to the performance requirements of the brake pads. Suitable adhesives are chosen to ensure the structural integrity of the brake pads at high temperatures. Appropriate functional additives are selected based on the performance requirements of the brake pads to improve their performance. The surface of the brake pads is sprayed with high-temperature resistant paint and subjected to surface nitriding treatment to improve their corrosion resistance and wear resistance. After the brake pads are prepared, an integrated device is used to press-fit the brake pads, apply adhesive, and bond the outer arc surface of the brake pads to the coated adhesive brake pads. This reduces manual intervention and labor intensity, and improves the assembly efficiency of the brake pads.

[0007] Furthermore, an arc-shaped protrusion is integrally formed on the inner wall of the fixing ring near its arc segment. There are two arc-shaped protrusions, one near each end of the arc segment. The integrated device includes a base, a central column fixed to the top of the base, and a rotating worktable set on the top of the base and surrounding the central column. The top of the base is provided with a first conveyor line for conveying the fixing ring, a second conveyor line for conveying the brake pad, a robot arm for clamping the fixing ring onto the rotating worktable, and a third conveyor line for conveying the brake pad. The robot arm can also clamp the brake pad and press it between the two arc-shaped protrusions. The rotating worktable is provided with a fixing component to maintain the stability of the fixing ring during the brake pad pressing process, an adhesive application mechanism for uniformly applying adhesive to the inner arc surface of the brake pad, a conveying mechanism for conveying the brake pad into the fixing ring, a clamping component for pressing the brake pad against the inner side of the brake pad, and an unloading component for unloading the assembled brake pad, brake pad, and fixing ring as a whole.

[0008] By adopting the above technical solution, the first conveyor line conveys the fixing ring, the robot arm grabs the fixing ring onto the rotating worktable, and the fixing component fixes the fixing ring. The second conveyor line conveys the brake pad, the robot arm clamps the brake pad and presses it between the two arc-shaped protrusions, the glue application mechanism evenly applies glue to the inner arc surface of the brake pad, the conveying mechanism presses the brake lining against the inner side of the brake pad, the clamping component makes the brake lining and the brake pad press against each other and bond them together, and the unloading component unloads the assembled brake lining, brake pad and fixing ring as a whole, thus completing the assembly operation of the brake lining, brake pad and fixing ring.

[0009] Furthermore, the fixing ring is U-shaped, and four notches are evenly distributed on the side wall of the rotating worktable. Four sets of fixing components are provided, each corresponding to one of the four notches. Each set of fixing components includes an arc-shaped baffle fixed to the rotating worktable near the notch and engaging with the outer arc surface of the fixing ring; a "U"-shaped rod fixed to the bottom of the rotating worktable; a screw rod rotatably connected and inserted through the horizontal section of the "U"-shaped rod; a fixed motor fixed to the horizontal section of the "U"-shaped rod and driving the screw rod to rotate; and a water jet fixed to the "U"-shaped rod. The guide rod on the flat section, the lower movable plate jointly set on the guide rod and the screw, and the L-shaped limiting plate that is slidably fitted through the rotating worktable, the arc baffle located on the side of the recess away from its opening, the mounting plate set on the rotating worktable, the arc baffle fitting with the mounting plate and pressing against the fixing ring, the lower end of the L-shaped limiting plate fixed to the top of the lower movable plate, the L-shaped limiting plate having two parts that respectively abut against the two corners of the mounting plate on the side away from the fixing ring, the screw passing through the lower movable plate and threadedly connected, and the guide rod passing through the lower movable plate and slidably fitted.

[0010] By adopting the above technical solution, before the robotic arm grasps the fixed ring onto the rotary table, the integrated device controls the fixed motor to operate and rotate the screw. Since the screw is threadedly connected to the lower movable plate, and the guide rod slides with the lower movable plate, the lower movable plate rises vertically. The lower movable plate then drives the two L-shaped limiting plates to rise until the mounting plate abuts against the inner corners of the two L-shaped limiting plates. At this point, the robotic arm grasps the fixed ring onto the rotary table, ensuring that the outer wall of the arc-shaped section of the fixed ring abuts against the inner surface of the arc-shaped baffle. Both ends of the fixed ring abut against the side of the mounting plate furthest from the L-shaped limiting plates, ensuring the stability of the fixed ring during the subsequent pressing of the brake pads. After the fixed ring is positioned, the robotic arm grasps the brake pads and presses them into the fixed ring. Both ends of the brake pads abut against the two arc-shaped protrusions, completing the assembly operation between the brake pads and the fixed ring.

[0011] Furthermore, the glue application mechanism includes a glue application assembly, which includes a glue tank fixed to the top of the central column, a glue delivery pipe fixed to and connected to the side wall of the glue tank, a peristaltic pump mounted on the glue delivery pipe, a hose fixed to and connected to the outlet of the peristaltic pump, a glue spraying pipe fixed to and connected to the end of the hose away from the peristaltic pump, an upper movable plate fixed to the glue spraying pipe, a rotating rod rotatably mounted on the bottom of the upper movable plate, and a glue application roller fixedly sleeved on the rotating rod and pressed against the inner surface of the brake pad. A glue spraying nozzle is provided through the glue spraying pipe at the position corresponding to the glue application roller, and the side wall of the glue application roller is pressed against the inner wall of the glue spraying nozzle. The glue application mechanism also includes a drive assembly for driving the upper movable plate to move so that the glue application roller evenly applies glue to the inner surface of the brake pad.

[0012] By adopting the above technical solution, when the rotating worktable rotates and the assembled brake pad and the fixing ring move to the position corresponding to the glue application roller, the drive component drives the upper movable plate to move. Since the glue application roller is rotated and installed at the bottom of the upper movable plate, the glue application roller is pressed against the inner wall of the glue spraying nozzle, so that the glue application roller evenly coats the glue liquid delivered to the glue spraying nozzle by the peristaltic pump onto the inner surface of the brake pad, thus completing the automatic glue application action.

[0013] Furthermore, the drive assembly includes a fixed block fixed to the top of the central column, a swing arm hinged to the side wall of the fixed block near its top, a connecting plate fixed to the side of the swing arm away from the fixed block, a side plate fixed to the top of the connecting plate, a guide rail fixed to the side plate, a lead screw rotatably mounted on the side plate and parallel to the guide rail, a drive motor fixed to the side plate and driving the lead screw to rotate, a sliding sleeve sleeved on the lead screw and threadedly connected, a push column fixed to the bottom of the upper movable plate, and a lower cylinder hinged to the top of the central column. The piston rod end of the lower cylinder is hinged to the bottom of the connecting plate, the bottom of the sliding sleeve slides in cooperation with the guide rail, the length direction of the upper movable plate is perpendicular to the axis of the lead screw, the upper movable plate passes through the sliding sleeve and slides in cooperation, and the end of the connecting plate near the notch is provided with an arc-shaped groove matching the arc of the arc baffle. An arc-shaped through hole for the push column to move is provided through the connecting plate, and the extension direction of the arc-shaped through hole is parallel to the extension direction of the arc-shaped groove.

[0014] By adopting the above technical solution, during the rotation of the rotary worktable, the piston rod of the cylinder under the control of the integrated device extends, thereby causing the connecting plate and the swing arm to rotate around the hinge axis between the swing arm and the fixed block. When the connecting plate moves to the vertical position, the glue roller and the glue spraying pipe move away from the rotary worktable, thus avoiding interference with the fixed ring as the rotary worktable rotates. During the glue application process, the control system of the integrated device shortens the cylinder, causing the connecting plate and the swing arm to rotate around the hinge axis between the swing arm and the fixed block. When the connecting plate moves to a horizontal position, the glue application roller abuts against the inner side of the brake pad. The peristaltic pump works and delivers the glue from the glue tank to the spray nozzle. After the drive motor works, it drives the lead screw to rotate. Since the lead screw is threadedly connected to the sliding sleeve, and the sliding sleeve slides with the guide rail, the sliding sleeve moves along the axial direction of the lead screw. Since the upper movable plate slides with the sliding sleeve, and the push post at the bottom of the upper movable plate slides with the arc-shaped through hole on the connecting plate, the upper movable plate can adapt to the arc bending change of the fixed ring arc segment. The glue application roller evenly applies glue to the inner side of the brake pad.

[0015] Furthermore, the third transmission line includes a fixed frame fixed to the top of the base, vertical plates fixed to both sides of the top of the fixed frame, and a transverse conveyor belt disposed between the two vertical plates. The conveying mechanism includes a conveying assembly, which includes a fixed column, a connecting column fixed to the fixed column, a vertical plate fixed to the end of the connecting column away from the fixed column, an upper connecting rod hinged to the side wall of the vertical plate, a crossbar rotatably mounted on the upper connecting rod, an electric push rod hinged to the top of the vertical plate, a connecting sleeve hinged to the push rod end of the electric push rod, and a connecting sleeve hinged to the side wall of the vertical plate. The upper connecting rod is parallel to the lower connecting rod, the mounting frame is hinged to both the lower and upper connecting rods and parallel to the upright plate, the vertical conveyor belt is set on the mounting frame, and the gripper is fixed to the outer surface of the vertical conveyor belt for picking up the brake pads. The crossbar passes through the connecting sleeve and is clearance-fitted. The width of the frame at the bottom of the mounting frame for mounting the vertical conveyor belt is narrower than the distance between the inner walls on both sides of the fixing ring. The bottom of the mounting frame and the bottom of the vertical conveyor belt are both lower than the recess. The conveying mechanism also includes a pushing component for pushing the brake pads from the transverse conveyor belt to the gripper.

[0016] Furthermore, the width of the transverse conveyor belt is less than the distance between the two vertical plates. A support plate is fixed on the side of the two vertical plates that are close to each other. The top of the support plate abuts against the bottom of the brake pad near its end. There are two sets of pushing components that are symmetrically distributed about the transverse conveyor belt. Each set of pushing components includes a horizontal plate fixed to the side of the vertical plate away from the transverse conveyor belt, an upper cylinder fixed to the horizontal plate and at an acute angle to the transverse conveyor belt, and a pushing block fixed to the end of the piston rod of the upper cylinder. A through hole is provided through the vertical plate for the pushing block to pass through.

[0017] By adopting the above technical solution, a gap is left between the end of the transverse conveyor belt and the mounting frame. The transverse conveyor belt transports the brake pads to the position of the pallet near the mounting frame. The transverse conveyor belt continues to rotate in a cycle. The upper cylinder controls the movement of the push block and pushes the brake pads onto the gripper. The vertical conveyor belt transmits the brake pads inserted by the gripper downward to the rotating worktable in the fixed ring. The clamping component then clamps the brake pads against the inner side of the brake pads.

[0018] Furthermore, the clamping assembly includes a U-shaped plate that is slidably mounted on the mounting plate. The two ends of the U-shaped plate are bent outwards. The clamping assembly also includes a clamping plate fixed to the end of the U-shaped plate, a clamping cylinder fixed to the side of the fixed post near the center post, and a rubber block fixed to the piston rod end of the clamping cylinder. The height of the rubber block is equal to the height of the U-shaped plate. The extension direction of the clamping plate is an arc shape that matches the inner side of the brake pad. The cross-section of the clamping plate is C-shaped that matches the inner side of the brake pad. There are two clamping plates, which are located at the two ends of the U-shaped plate respectively.

[0019] By adopting the above technical solution, the pressing cylinder works and causes the U-shaped plate to move towards the brake pad until the two U-shaped plates cooperate and press against the brake pad, and the brake pad cooperates with and adheres to the inner side of the fixing ring.

[0020] Furthermore, the mounting plate is equipped with a retaining component to maintain the stability of the U-shaped plate during its movement. The retaining component includes a fixed plate fixed to the side of the mounting plate away from the central column, a sliding rod that passes through the fixed plate and is clearance-fitted, an end plate fixed to the end of the sliding rod away from the U-shaped plate, a limiting block fixed to the end of the sliding rod near the U-shaped plate, and a spring sleeved on the sliding rod and fixed between the limiting block and the fixed plate. An abutting slope is provided at the intersection between the end of the limiting block away from the fixed plate and the side wall of the limiting block away from the fixed ring. A wavy groove is provided on the side of the U-shaped plate near the fixed plate to cooperate with the end of the limiting block away from the fixed plate. The unloading component includes an unloading cylinder fixed to the top of the central column and an arc-shaped push plate fixed to the end of the piston rod of the unloading cylinder. The bottom of the arc-shaped push plate is higher than the top of the arc-shaped baffle. An unloading groove is fixed at the top of the base corresponding to the position of the unloading cylinder.

[0021] By adopting the above technical solution, during the process of the rubber block being pressed against the U-shaped plate by the pressing cylinder, the limiting block, under the elastic force of the spring, ensures that the abutting slope and the wavy groove are pressed together. The limiting shape of the abutting slope ensures that the U-shaped plate remains stable as it moves towards the brake pad, and there will be no phenomenon of backing back that would affect stability. When the rotating worktable rotates and the assembled brake pad, brake lining, and fixing ring rotate to the position corresponding to the unloading cylinder, the fixed motor works and the top of the L-shaped limiting plate is lower than the top of the rotating worktable. At this time, the operator can remove the mounting plate as a whole. The unloading cylinder works and the arc-shaped push plate pushes the fixing ring to complete the unloading action, and the mounting plate enters the next cycle for continued use.

[0022] This application also discloses a support assembly for supporting brake pads produced by the brake pad manufacturing process described in any of the preceding claims. The support assembly includes a support sleeve, a support rod threadedly connected to the support sleeve, and a screwing block fixedly sleeved on the support rod. The support rod is fixed to the inner side of one of the brake pads, and the side of the support rod away from the support sleeve abuts against the inner side of the other brake pad.

[0023] In summary, the present invention has the following beneficial effects: 1. After the brake pads are prepared, this application uses an integrated device to press the brake pads, apply adhesive, and bond the outer arc surface of the brake pads to the brake pads coated with adhesive. This reduces the degree of manual intervention and labor intensity, and improves the assembly efficiency of the brake pads. 2. In this application, before the robotic arm picks up the fixed ring onto the rotary table, the integrated device controls the fixed motor to work and causes the screw to rotate. Since the screw is threadedly connected to the lower movable plate and the guide rod is slidably engaged with the lower movable plate, the lower movable plate rises vertically. The lower movable plate drives the two L-shaped limit plates to rise until the mounting plate abuts against the inner corners of the two L-shaped limit plates respectively. At this time, the robotic arm picks up the fixed ring onto the rotary table and causes the outer wall of the arc segment of the fixed ring to abut against the inner surface of the arc baffle. Both ends of the fixed ring abut against the side of the mounting plate away from the L-shaped limit plates, ensuring the stability of the fixed ring during the subsequent pressing of the brake pads. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the integrated device in an embodiment of the present invention; Figure 2 yes Figure 1 A structural diagram from another perspective after the base is removed; Figure 3 This is a structural schematic diagram of an embodiment of the present invention used to highlight the fixing component; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram illustrating the structure of the adhesive application mechanism in an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the connection structure between the coating roller and the spray nozzle in an embodiment of the present invention; Figure 7 yes Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram illustrating the structure of the conveying assembly in an embodiment of the present invention; Figure 9 yes Figure 2 Enlarged view of point C in the middle; Figure 10 This is a schematic diagram illustrating the structure of the clamping component in an embodiment of the present invention; Figure 11 This is a planar schematic diagram of a support component according to an embodiment of the present invention.

[0025] In the diagram: 1. Fixed ring; 2. Brake pad; 3. Brake lining; 4. Base; 41. Central column; 42. Rotary worktable; 421. Notch; 43. First conveyor line; 44. Second conveyor line; 45. Robotic arm; 5. Third transmission line; 51. Fixed frame; 52. Vertical plate; 521. Perforation; 522. Support plate; 53. Horizontal conveyor belt; 6. Fixed assembly; 61. Arc baffle; 62. "U"-shaped rod; 63. Screw; 64. Fixed motor; 65. Guide rod; 66. Lower actuator 67. Moving plate; 7. L-shaped limiting plate; 7. Glue application mechanism; 71. Glue application assembly; 711. Glue tank; 712. Glue delivery pipe; 713. Peristaltic pump; 714. Hose; 715. Glue spraying pipe; 7151. Glue spraying nozzle; 716. Upper moving plate; 717. Rotating rod; 718. Glue application roller; 72. Drive assembly; 721. Fixing block; 722. Swing arm; 723. Connecting plate; 7231. Arc-shaped groove; 7232. Arc-shaped through hole; 724. Side plate; 725. Guide rail; 726. 727. Lead screw; 728. Drive motor; 729. Sliding sleeve; 730. Push column; 84. Lower cylinder; 85. Conveying mechanism; 86. Conveying assembly; 87. Fixed column; 88. Connecting column; 89. Vertical plate; 80. Upper connecting rod; 81. Horizontal bar; 82. Electric push rod; 83. Connecting sleeve; 84. Lower connecting rod; 85. Mounting bracket; 86. Vertical conveyor belt; 87. Gripper; 88. Pushing assembly; 89. Horizontal plate; 80. Upper cylinder; 81. Push block; 90. 91. Clamping assembly; 92. U-shaped plate; 93. Wavy groove; 94. Clamping plate; 95. Clamping cylinder; 16. Rubber block; 17. Unloading assembly; 18. Unloading cylinder; 19. Arc push plate; 10. Unloading groove; 11. Arc-shaped protrusion; 12. Mounting plate; 13. Holding assembly; 14. Fixing plate; 15. Slide rod; 16. End plate; 17. Limiting block; 18. Abutting slope; 19. Spring; 10. Support sleeve; 11. Support rod; 12. Twisting block. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] like Figure 1-10 As shown in the embodiment of this application, a brake pad manufacturing process is disclosed, and the process steps are as follows: S1. Select high-performance friction materials, suitable binders, and functional additives according to the performance requirements of brake pad 3 and make reasonable proportions. Then put them into a mixer for thorough mixing. After that, put the mixed materials into a mold and hot press them to form a brake pad 3 blank. Then put the pressed brake pad 3 blank into an oven for curing treatment. S2. According to the manufacturing requirements of brake pad 3, the cured brake pad 3 is subjected to mechanical processing such as cutting, grinding, and drilling, and the surface of brake pad 3 is sprayed with paint and nitrided. S3. Check whether there are defects such as cracks, air holes, or missing material on the surface of the brake pad 3, and inspect the flatness, smoothness, size, and friction performance of the surface brake pad 3. S4. Using the integration device, press the brake pad 2, which mates with the brake lining 3, onto the inner arc surface of the retaining ring 1. Then, use the integration device to evenly apply adhesive to the inner arc surface of the brake pad 2. Finally, use the integration device to bond the outer arc surface of the brake lining 3 to the brake pad 2 coated with adhesive.

[0028] Based on the performance requirements of brake pad 3, high-performance friction materials are selected and rationally proportioned. Suitable adhesives are chosen to ensure the structural integrity of brake pad 3 at high temperatures. Appropriate functional additives are selected to improve the performance of brake pad 3. The surface of brake pad 3 is sprayed with high-temperature resistant paint and nitrided to improve its corrosion resistance and wear resistance. After the brake pad 3 is prepared, an integrated device is used to press-fit the brake pad 2, apply adhesive, and bond the outer arc surface of the brake pad 3 to the adhesive-coated brake pad 2. This reduces manual intervention and labor intensity, and improves the assembly efficiency of the brake pad 3.

[0029] An arc-shaped protrusion 11 is integrally formed on the inner wall of the fixed ring 1 near its arc segment. Two arc-shaped protrusions 11 are provided and are respectively near the two ends of the arc segment. The integrated device includes a base 4, a central column 41 fixed to the top of the base 4, and a rotary worktable 42 set on the top of the base 4 and surrounding the central column 41 (the rotation drive method of the rotary worktable 42 is prior art and does not need to be described in detail). The top of the base 4 is provided with a first conveyor line 43 for conveying the fixed ring 1, a second conveyor line 44 for conveying the brake pad 2, and a mechanical device for clamping the fixed ring 1 onto the rotary worktable 42. The robotic arm 45 and the third transmission line 5 for transmitting the brake pad 3 are provided. The robotic arm 45 can also grip the brake pad 2 and press it between the two arc-shaped protrusions 11. The rotary worktable 42 is provided with a fixing component 6 for maintaining the stability of the fixing ring 1 during the pressing of the brake pad 2, an adhesive application mechanism 7 for uniformly applying adhesive to the inner arc surface of the brake pad 2, a conveying mechanism 8 for conveying the brake pad 3 into the fixing ring 1, a clamping component 9 for pressing the brake pad 3 against the inner side of the brake pad 2, and an unloading component 10 for unloading the brake pad 3, brake pad 2, and fixing ring 1 as a whole.

[0030] The first conveyor line 43 conveys the fixing ring 1, and the robot arm 45 picks up the fixing ring 1 and places it on the rotary worktable 42. The fixing component 6 fixes the fixing ring 1. The second conveyor line 44 conveys the brake pad 2, and the robot arm 45 clamps the brake pad 2 and presses it between the two arc-shaped protrusions 11. The glue application mechanism 7 applies glue evenly to the inner arc surface of the brake pad 2. The conveying mechanism 8 presses the brake lining 3 against the inner side of the brake pad 2. The pressing component 9 presses the brake lining 3 against the brake pad 2 and makes them stick together. The unloading component 10 unloads the brake lining 3, brake pad 2 and fixing ring 1 as a whole, completing the assembly operation of the brake lining 3, brake pad 2 and fixing ring 1.

[0031] The fixing ring 1 is U-shaped, and four notches 421 are evenly arranged on the side wall of the rotating worktable 42. The fixing components 6 are provided in four sets and correspond to the positions of the four notches 421 respectively. Each set of fixing components 6 includes an arc baffle 61 fixed to the rotating worktable 42 near the notch 421 and cooperating with the outer arc surface of the fixing ring 1, a "U"-shaped rod 62 fixed to the bottom of the rotating worktable 42, a screw 63 rotatably connected to the horizontal section of the "U"-shaped rod 62, a fixed motor 64 fixed to the horizontal section of the "U"-shaped rod 62 and driving the screw 63 to rotate, and a guide fixed to the horizontal section of the "U"-shaped rod 62. The guide rod 65, the lower movable plate 66 jointly set on the guide rod 65 and the screw 63, and the L-shaped limiting plate 67 that is slidably fitted through the rotary worktable 42 are all included. The arc baffle 61 is located on the side of the recess 421 away from its opening. The rotary worktable 42 is provided with a mounting plate 12. The arc baffle 61 cooperates with the mounting plate 12 and abuts against the fixing ring 1. The lower end of the L-shaped limiting plate 67 is fixed to the top of the lower movable plate 66. There are two L-shaped limiting plates 67, which abut against the two corners of the mounting plate 12 on the side away from the fixing ring 1. The screw 63 passes through the lower movable plate 66 and is threadedly connected. The guide rod 65 passes through the lower movable plate 66 and is slidably fitted.

[0032] Before the robotic arm 45 picks up the fixed ring 1 onto the rotary table 42, the integrated device controls the fixed motor 64 to work and causes the screw 63 to rotate. Since the screw 63 is threadedly connected to the lower movable plate 66, and the guide rod 65 is slidably engaged with the lower movable plate 66, the lower movable plate 66 rises vertically. The lower movable plate 66 drives the two L-shaped limiting plates 67 to rise until the mounting plate 12 abuts against the inner corners of the two L-shaped limiting plates 67 respectively. At this time, the robotic arm 45 picks up the fixed ring 1 onto the rotary table 42, and causes the outer wall of the arc segment of the fixed ring 1 to abut against the inner surface of the arc baffle 61. Both ends of the fixed ring 1 abut against the side of the mounting plate 12 away from the L-shaped limiting plates 67, ensuring the stability of the fixed ring 1 during the subsequent pressing of the brake pad 2. After the position of the fixed ring 1 is fixed, the robot arm 45 grabs the brake pad 2 and presses it into the fixed ring 1. The two ends of the brake pad 2 abut against the two arc-shaped protrusions 11 respectively, completing the assembly operation between the brake pad 2 and the fixed ring 1.

[0033] The glue application mechanism 7 includes a glue application assembly 71, which includes a glue tank 711 fixed to the top of the central column 41, a glue delivery pipe 712 fixed to and connected to the side wall of the glue tank 711, a peristaltic pump 713 mounted on the glue delivery pipe 712, a flexible hose 714 fixed to and connected to the outlet of the peristaltic pump 713, a glue spraying pipe 715 fixed to and connected to the end of the flexible hose 714 away from the peristaltic pump 713, an upper movable plate 716 fixed to the glue spraying pipe 715, and a rotating mounting plate. The rotating rod 717 is mounted on the bottom of the upper movable plate 716, and the glue-applying roller 718 is fixedly sleeved on the rotating rod 717 and pressed against the inner surface of the brake pad 2. The glue-spraying tube 715 is provided with a glue-spraying nozzle 7151 through the glue-applying roller 718 at the corresponding position. The side wall of the glue-applying roller 718 is pressed against the inner wall of the glue-spraying nozzle 7151. The glue-applying mechanism 7 also includes a drive assembly 72 for driving the upper movable plate 716 to move so that the glue-applying roller 718 can uniformly apply glue to the inner surface of the brake pad 2.

[0034] When the rotating worktable 42 rotates and causes the assembled brake pad 2 and the fixing ring 1 to move to the position corresponding to the glue application roller 718, the drive assembly 72 drives the upper movable plate 716 to move. Since the glue application roller 718 is rotatably installed at the bottom of the upper movable plate 716, the glue application roller 718 abuts against the inner wall of the glue spray nozzle 7151, so that the glue application roller 718 evenly coats the glue liquid delivered by the peristaltic pump 713 to the glue spray nozzle 7151 onto the inner surface of the brake pad 2, thus completing the automatic glue application action.

[0035] The drive assembly 72 includes a fixed block 721 fixed to the top of the central column 41, a swing arm 722 hinged to the side wall of the fixed block 721 near its top, a connecting plate 723 fixed to the side of the swing arm 722 away from the fixed block 721, a side plate 724 fixed to the top of the connecting plate 723, a guide rail 725 fixed to the side plate 724, a lead screw 726 rotatably mounted on the side plate 724 and parallel to the guide rail 725, a drive motor 727 fixed to the side plate 724 and driving the lead screw 726 to rotate, a sliding sleeve 728 sleeved on the lead screw 726 and threadedly connected, and a push column 729 fixed to the bottom of the upper movable plate 716. The lower cylinder 730 is hinged to the top of the central column 41. The piston rod end of the lower cylinder 730 is hinged to the bottom of the connecting plate 723. The bottom of the sliding sleeve 728 is slidably engaged with the guide rail 725. The length direction of the upper movable plate 716 is perpendicular to the axis of the lead screw 726. The upper movable plate 716 passes through the sliding sleeve 728 and is slidably engaged. One end of the connecting plate 723 near the notch 421 is provided with an arc-shaped groove 7231 that matches the arc of the arc baffle 61. An arc-shaped through hole 7232 for the push column 729 to move is provided through the connecting plate 723. The extension direction of the arc-shaped through hole 7232 is parallel to the extension direction of the arc-shaped groove 7231.

[0036] During the rotation of the rotary worktable 42, the control system of the integrated device extends the piston rod of the cylinder 730, causing the connecting plate 723 and the swing arm 722 to rotate around the hinge axis between the swing arm 722 and the fixed block 721. When the connecting plate 723 moves to a vertical position, the glue roller 718 and the glue spray pipe 715 move away from the rotary worktable 42, avoiding interference with the fixed ring 1 as the rotary worktable 42 rotates. During glue application, the control system of the integrated device shortens the cylinder 730, causing the connecting plate 723 and the swing arm 722 to rotate around the hinge axis between the swing arm 722 and the fixed block 721. When the connecting plate 723 moves to a horizontal position, the glue roller 718 abuts against the inner side of the brake pad 2, the peristaltic pump 713 operates, and the glue in the glue tank 711 is delivered to the glue spray nozzle 7151. After the drive motor 727 operates, it drives the lead screw 726 to rotate. The rod 726 is threadedly connected to the sliding sleeve 728, and the sliding sleeve 728 is slidably engaged with the guide rail 725, thereby causing the sliding sleeve 728 to move along the axial direction of the lead screw. Since the upper movable plate 716 is slidably engaged with the sliding sleeve 728, and the push post 729 at the bottom of the upper movable plate 716 is slidably engaged with the arc-shaped through hole 7232 on the connecting plate 723, the upper movable plate 716 can adapt to the arc bending change of the arc segment of the fixed ring 1. The glue roller 718 applies glue evenly to the inner side of the brake pad 2.

[0037] The third transmission line 5 includes a fixed frame 51 fixed to the top of the base 4, vertical plates 52 fixed to both sides of the top of the fixed frame 51, and a transverse conveyor belt 53 disposed between the two vertical plates 52 (the transverse conveyor belt 53 is driven by chain drive, which is prior art and does not need to be described in detail). The conveying mechanism 8 includes a conveying assembly 81, which includes a fixed column 810, a connecting column 811 fixed to the fixed column 810, a vertical plate 812 fixed to the end of the connecting column 811 away from the fixed column 810, an upper connecting rod 813 hinged to the side wall of the vertical plate 812, a crossbar 814 rotatably mounted on the upper connecting rod 813, an electric push rod 815 hinged to the top of the vertical plate 812, a connecting sleeve 816 hinged to the push rod end of the electric push rod 815, and a connecting rod 816 hinged to the side wall of the vertical plate 812 and connected to the upper connecting rod. The conveying mechanism 8 includes a lower connecting rod 817 parallel to 813, a mounting frame 818 hinged to both the lower connecting rod 817 and the upper connecting rod 813 and parallel to the upright plate 812, a vertical conveyor belt 819 mounted on the mounting frame 818 (the vertical conveyor belt 819 is driven by chain drive, which is prior art and does not need to be described in detail), and a gripper 820 fixed to the outer surface of the vertical conveyor belt 819 for picking up the brake pad 3. The crossbar 814 passes through the connecting sleeve 816 and is clearance-fitted. The width of the frame at the bottom of the mounting frame 818 for mounting the vertical conveyor belt 819 is narrower than the distance between the inner walls on both sides of the fixing ring 1. The bottom of the mounting frame 818 and the bottom of the vertical conveyor belt 819 are both lower than the recess 421. The conveying mechanism 8 also includes a pushing assembly 82 for pushing the brake pad 3 from the transverse conveyor belt 53 onto the gripper 820.

[0038] The width of the transverse conveyor belt 53 is less than the distance between the two vertical plates 52. A support plate 522 is fixed on the side of the two vertical plates 52 that is close to each other. The top of the support plate 522 abuts against the bottom of the brake pad 3 near its end. The push assembly 82 is provided in two sets and is symmetrically distributed about the transverse conveyor belt 53. Each push assembly 82 includes a horizontal plate 821 fixed on the side of the vertical plate 52 away from the transverse conveyor belt 53, an upper cylinder 822 fixed on the horizontal plate 821 and at an acute angle to the transverse conveyor belt 53, and a push block 823 fixed to the piston rod end of the upper cylinder 822. A through hole 521 is provided on the vertical plate 52 for the push block 823 to pass through.

[0039] A gap is left between the end of the transverse conveyor belt 53 and the mounting frame 818. The transverse conveyor belt 53 transports the brake pad 3 to the position of the pallet 522 near the mounting frame 818. The transverse conveyor belt 53 continues to rotate in a cycle. The upper cylinder 822 controls the movement of the push block 823 and pushes the brake pad 3 onto the gripper 820. The vertical conveyor belt 819 transmits the brake pad 3 inserted by the gripper 820 downward to the rotating worktable 42 inside the fixed ring 1. The clamping assembly 9 then clamps the brake pad 3 against the inner side of the brake pad 2.

[0040] The clamping assembly 9 includes a U-shaped plate 91 that is slidably mounted on the mounting plate 12. Both ends of the U-shaped plate 91 are bent outward. The clamping assembly 9 also includes a clamping plate 92 fixed to the end of the U-shaped plate 91, a clamping cylinder 93 fixed to the side of the fixing post 810 near the central post 41, and a rubber block 94 fixed to the piston rod end of the clamping cylinder 93. The height of the rubber block 94 is equal to the height of the U-shaped plate 91. The extension direction of the clamping plate 92 is an arc shape that matches the inner side of the brake pad 3. The cross-section of the clamping plate 92 is C-shaped that matches the inner side of the brake pad 3. There are two clamping plates 92, which are located at both ends of the U-shaped plate 91.

[0041] The cylinder 93 operates and causes the U-shaped plate 91 to move the clamping plate 92 toward the brake pad 3 until the two U-shaped plates 91 cooperate and clamp the brake pad 3, and the brake pad 3 cooperates with and adheres to the inner side of the fixing ring 1.

[0042] The mounting plate 12 is provided with a retaining assembly 13 for maintaining the stability of the U-shaped plate 91 during movement. The retaining assembly 13 includes a fixing plate 131 fixed to the side of the mounting plate 12 away from the central column 41, a sliding rod 132 passing through the fixing plate 131 and with clearance fitting, an end plate 133 fixed to the end of the sliding rod 132 away from the U-shaped plate 91, a limiting block 134 fixed to the end of the sliding rod 132 near the U-shaped plate 91, and a spring 135 sleeved on the sliding rod 132 and fixed between the limiting block 134 and the fixing plate 131. The limiting block 134 is located away from the fixing plate 131. An abutting slope 1341 is provided at the intersection of one end of the 1 and the side wall of the limiting block 134 away from the fixed ring 1. A wave-shaped groove 911 is provided on the side of the U-shaped plate 91 near the fixed plate 131, which cooperates with the end of the limiting block 134 away from the fixed plate 131. The unloading assembly 10 includes an unloading cylinder 101 fixed to the top of the central column 41 and an arc-shaped push plate 102 fixed to the piston rod end of the unloading cylinder 101. The bottom of the arc-shaped push plate 102 is higher than the top of the arc-shaped baffle 61. An unloading groove 103 is fixed at the top of the base 4 at the position corresponding to the unloading cylinder 101.

[0043] During the process of the clamping cylinder 93 controlling the rubber block 94 to clamp the U-shaped plate 91, the limiting block 134, under the elastic force of the spring 135, makes the abutting inclined surface 1341 abut against the wavy groove 911. The shape limitation of the abutting inclined surface 1341 makes the U-shaped plate 91 remain stable as it moves towards the brake pad 3, and there will be no phenomenon of backing back that would affect stability. When the rotating worktable 42 rotates and the assembled brake pad 3, brake pad 2, and fixing ring 1 rotate to the position corresponding to the unloading cylinder 101, the fixed motor 64 works and makes the top of the L-shaped limiting plate 67 lower than the top of the rotating worktable 42. At this time, the operator can remove the mounting plate 12 as a whole. The unloading cylinder 101 works and makes the arc push plate 102 push the fixing ring 1 to complete the unloading action. The mounting plate 12 then enters the next cycle for continued use.

[0044] like Figure 11 As shown, this embodiment also discloses a support assembly for supporting the brake pad 3 prepared by the brake pad manufacturing process described in any of the preceding claims. The support assembly includes a support sleeve 14, a support rod 15 threadedly connected to the support sleeve 14, and a screwing block 16 fixedly sleeved on the support rod 15. The support rod 15 is fixed to the inner side of one of the brake pads 3, and the side of the support rod 15 away from the support sleeve 14 abuts against the inner side of the other brake pad 3.

[0045] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A brake pad manufacturing process, characterized in that, The process steps are as follows: S1. Select high-performance friction materials, suitable binders, and functional additives according to the performance requirements of brake pads (3) and make reasonable proportions. Then put them into a mixer for thorough mixing. Then put the mixed materials into a mold and hot press them to form brake pad (3) blanks. Then put the pressed brake pad (3) blanks into an oven for curing treatment. S2. According to the manufacturing requirements of brake pad (3), the cured brake pad (3) is subjected to mechanical processing such as cutting, grinding, and drilling, and the surface of the brake pad (3) is sprayed with paint and nitrided. S3. Check whether there are defects such as cracks, pores, or missing material on the surface of the brake pad (3), and test the flatness, smoothness, size, and friction performance of the surface brake pad (3). S4. Using the integration device, press the brake pad (2) that mates with the brake lining (3) onto the inner arc surface of the fixing ring (1). Then, use the integration device to evenly apply adhesive to the inner arc surface of the brake pad (2). Finally, the integration device will bond the outer arc surface of the brake lining (3) to the brake pad (2) coated with adhesive.

2. The brake pad manufacturing process according to claim 1, characterized in that, An arc-shaped protrusion (11) is integrally formed on the inner wall of the fixing ring (1) near its arc segment. There are two arc-shaped protrusions (11) and they are respectively near the two ends of the arc segment. The integrated device includes a base (4), a central column (41) fixed to the top of the base (4), and a rotating worktable (42) set on the top of the base (4) and surrounding the central column (41). The top of the base (4) is provided with a first conveyor line (43) for conveying the fixing ring (1), a second conveyor line (44) for conveying the brake pad (2), a robot arm (45) for clamping the fixing ring (1) onto the rotating worktable (42), and a third conveyor line for conveying the brake pad (3). The transmission line (5) and the robot (45) can also grip the brake pad (2) and press it between the two arc-shaped protrusions (11). The rotating worktable (42) is equipped with a fixing component (6) to maintain the stability of the fixing ring (1) during the pressing of the brake pad (2), a gluing mechanism (7) for uniformly applying glue to the inner arc surface of the brake pad (2), a conveying mechanism (8) for conveying the brake lining (3) into the fixing ring (1), a clamping component (9) for pressing the brake lining (3) against the inner side of the brake pad (2), and a unloading component (10) for unloading the assembled brake lining (3), brake pad (2), and fixing ring (1) as a whole.

3. The brake pad manufacturing process according to claim 2, characterized in that: The fixing ring (1) is U-shaped, and four notches (421) are evenly arranged on the side wall of the rotating worktable (42). The fixing components (6) are provided in four sets and correspond to the positions of the four notches (421). Each set of fixing components (6) includes an arc baffle (61) fixed on the rotating worktable (42) near the notch (421) and cooperating with the outer arc surface of the fixing ring (1), a "U"-shaped rod (62) fixed on the bottom of the rotating worktable (42), a screw (63) that is rotatably connected to the horizontal section of the "U"-shaped rod (62), a fixed motor (64) that drives the screw (63) to rotate on the horizontal section of the "U"-shaped rod (62), and a guide rod (65) fixed on the horizontal section of the "U"-shaped rod (62). The lower movable plate (66) is jointly set on the guide rod (65) and the screw (63), and the L-shaped limiting plate (67) is slidably fitted on the rotary table (42). The arc baffle (61) is located on the side of the notch (421) away from its opening. The rotary table (42) is provided with a mounting plate (12). The arc baffle (61) fits with the mounting plate (12) and abuts against the fixing ring (1). The lower end of the L-shaped limiting plate (67) is fixed to the top of the lower movable plate (66). The L-shaped limiting plate (67) has two parts and abuts against the two corners of the mounting plate (12) away from the fixing ring (1). The screw (63) passes through the lower movable plate (66) and is threadedly connected. The guide rod (65) passes through the lower movable plate (66) and is slidably fitted.

4. The brake pad manufacturing process according to claim 2, characterized in that: The glue application mechanism (7) includes a glue application assembly (71), which includes a glue tank (711) fixed to the top of the central column (41), a glue delivery pipe (712) fixed to and connected to the side wall of the glue tank (711), a peristaltic pump (713) mounted on the glue delivery pipe (712), a hose (714) fixed to and connected to the outlet of the peristaltic pump (713), a glue spraying pipe (715) fixed to and connected to the end of the hose (714) away from the peristaltic pump (713), and an upper movable plate (716) fixed to the glue spraying pipe (715). The rotating rod (717) installed at the bottom of the upper movable plate (716) and the glue-applying roller (718) fixedly sleeved on the rotating rod (717) and pressed against the inner surface of the brake pad (2) are provided. The glue-spraying pipe (715) is provided with a glue-spraying nozzle (7151) at the position corresponding to the glue-applying roller (718). The side wall of the glue-applying roller (718) is pressed against the inner wall of the glue-spraying nozzle (7151). The glue-applying mechanism (7) also includes a drive assembly (72) for driving the upper movable plate (716) to move so that the glue-applying roller (718) applies glue evenly to the inner surface of the brake pad (2).

5. A brake pad manufacturing process according to claim 4, characterized in that: The drive assembly (72) includes a fixed block (721) fixed to the top of the central column (41), a swing arm (722) hinged to the side wall of the fixed block (721) near its top, a connecting plate (723) fixed to the side of the swing arm (722) away from the fixed block (721), a side plate (724) fixed to the top of the connecting plate (723), a guide rail (725) fixed to the side plate (724), a lead screw (726) rotatably mounted on the side plate (724) and parallel to the guide rail (725), a drive motor (727) fixed to the side plate (724) and driving the lead screw (726) to rotate, a sliding sleeve (728) sleeved on the lead screw (726) and threadedly connected, and a push column (728) fixed to the bottom of the upper movable plate (716). 29) and a lower cylinder (730) hinged to the top of the central column (41). The piston rod end of the lower cylinder (730) is hinged to the bottom of the connecting plate (723). The bottom of the sliding sleeve (728) is slidably engaged with the guide rail (725). The length direction of the upper movable plate (716) is perpendicular to the axis of the lead screw (726). The upper movable plate (716) passes through the sliding sleeve (728) and is slidably engaged. The end of the connecting plate (723) near the notch (421) is provided with an arc-shaped groove (7231) that matches the arc of the arc baffle (61). An arc-shaped through hole (7232) for the push column (729) to move is provided through the connecting plate (723). The extension direction of the arc-shaped through hole (7232) is parallel to the extension direction of the arc-shaped groove (7231).

6. The brake pad manufacturing process according to claim 4, characterized in that: The third transmission line (5) includes a fixed frame (51) fixed to the top of the base (4), vertical plates (52) fixed to both sides of the top of the fixed frame (51), and a transverse conveyor belt (53) disposed between the two vertical plates (52). The conveying mechanism (8) includes a conveying assembly (81), which includes a fixed column (810), a connecting column (811) fixed to the fixed column (810), a vertical plate (812) fixed to the end of the connecting column (811) away from the fixed column (810), an upper connecting rod (813) hinged to the side wall of the vertical plate (812), a crossbar (814) rotatably mounted on the upper connecting rod (813), an electric push rod (815) hinged to the top of the vertical plate (812), a connecting sleeve (816) hinged to the push rod end of the electric push rod (815), and a connecting sleeve (816) hinged to the side wall of the vertical plate (812) and connected to the upper... The lower connecting rod (817) is parallel to the connecting rod (813), the mounting frame (818) is hinged to both the lower connecting rod (817) and the upper connecting rod (813) and is parallel to the upright plate (812), the vertical conveyor belt (819) is set on the mounting frame (818), and the gripper (820) is fixed to the outer surface of the vertical conveyor belt (819) for picking up the brake pad (3). The crossbar (814) passes through the connecting sleeve (816) and is clearance-fitted. The width of the frame at the bottom of the mounting frame (818) for mounting the vertical conveyor belt (819) is narrower than the distance between the inner walls on both sides of the fixing ring (1). The bottom of the mounting frame (818) and the bottom of the vertical conveyor belt (819) are both lower than the notch (421). The conveying mechanism (8) also includes a pushing assembly (82) for pushing the brake pad (3) from the transverse conveyor belt (53) to the gripper (820).

7. A brake pad manufacturing process according to claim 6, characterized in that: The width of the transverse conveyor belt (53) is less than the distance between the two vertical plates (52). A support plate (522) is fixed on the side of the two vertical plates (52) that are close to each other. The top of the support plate (522) abuts against the bottom of the brake pad (3) near its end. The push assembly (82) is provided in two sets and is symmetrically distributed about the transverse conveyor belt (53). Each push assembly (82) includes a horizontal plate (821) fixed on the side of the vertical plate (52) away from the transverse conveyor belt (53), an upper cylinder (822) fixed on the horizontal plate (821) and at an acute angle to the transverse conveyor belt (53), and a push block (823) fixed to the piston rod end of the upper cylinder (822). A through hole (521) is provided on the vertical plate (52) for the push block (823) to pass through.

8. A brake pad manufacturing process according to claim 6, characterized in that: The clamping assembly (9) includes a U-shaped plate (91) that is slidably mounted on the mounting plate (12). The two ends of the U-shaped plate (91) are bent outwards respectively. The clamping assembly (9) also includes a clamping plate (92) fixed to the end of the U-shaped plate (91), a clamping cylinder (93) fixed to the side of the fixing post (810) near the center post (41), and a rubber block (94) fixed to the piston rod end of the clamping cylinder (93). The height of the rubber block (94) is equal to the height of the U-shaped plate (91). The extension direction of the clamping plate (92) is an arc shape that matches the inner side of the brake pad (3). The cross section of the clamping plate (92) is a C shape that matches the inner side of the brake pad (3). There are two clamping plates (92) and they are located at the two ends of the U-shaped plate (91) respectively.

9. A brake pad manufacturing process according to claim 6, characterized in that: The mounting plate (12) is provided with a retaining component (13) for maintaining the stability of the U-shaped plate (91) during its movement. The retaining component (13) includes a fixing plate (131) fixed to the side of the mounting plate (12) away from the central column (41), a sliding rod (132) that passes through the fixing plate (131) and is clearance-fitted, an end plate (133) fixed to the end of the sliding rod (132) away from the U-shaped plate (91), and a limiting block (13) fixed to the end of the sliding rod (132) near the U-shaped plate (91). 4) and a spring (135) sleeved on the slide rod (132) and fixed between the limiting block (134) and the fixing plate (131). An abutting inclined surface (1341) is provided at the intersection between the end of the limiting block (134) away from the fixing plate (131) and the side wall of the limiting block (134) away from the fixing ring (1). A wave-shaped groove (911) is provided on the side of the U-shaped plate (91) close to the fixing plate (131) to cooperate with the end of the limiting block (134) away from the fixing plate (131). The unloading assembly (10) includes an unloading cylinder (101) fixed to the top of the central column (41) and an arc-shaped push plate (102) fixed to the piston rod end of the unloading cylinder (101). The bottom of the arc-shaped push plate (102) is higher than the top of the arc-shaped baffle (61). An unloading groove (103) is fixed at the top of the base (4) at the position corresponding to the unloading cylinder (101).

10. A support assembly for supporting a brake pad (3) manufactured according to any one of claims 2-9, characterized in that: The support assembly includes a support sleeve (14), a support rod (15) threadedly connected to the support sleeve (14), and a screw block (16) fixedly sleeved on the support rod (15). The support rod (15) is fixed to the inner side of one of the brake pads (3), and the side of the support rod (15) away from the support sleeve (14) abuts against the inner side of the other brake pad (3).

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