High-precision stamping accessory of automobile brake system

Abstract

The utility model belongs to the technical field of automobile accessories, and particularly relates to a high-precision automobile brake system stamping accessory which comprises a brake bottom plate, a first through hole is formed in the top end of the brake bottom plate, a plurality of second through holes are evenly formed in the circumference of the first through hole, and a shaft sleeve is fixedly connected to the top end of the brake bottom plate. A shaft sleeve is fixedly connected to the top end of the brake bottom plate, the shaft sleeve penetrates through the top end of the brake bottom plate, a reinforcing plate is fixedly connected to the top end of the brake bottom plate, a supporting pin hole is formed in the top end of the reinforcing plate and penetrates to the bottom end of the brake bottom plate, and a dust cover fixing ring is fixedly connected to the bottom end of the brake bottom plate. Integrated stamping of the brake bottom plate is achieved, the strength and hardness of the whole accessory are enhanced, the technology is simple, batch production is easy to achieve, pollutant emission is reduced, and environmental protection and energy saving are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically a high-precision stamped part for automotive braking systems. Background Technology

[0002] Unlike ordinary blanking, fine blanking strives to suppress tearing of the sheet metal during the blanking process, maintaining the part as a single unit until it separates from the sheet, thus keeping the metal sheet in a constant state of plastic deformation. To achieve this, a V-shaped blank holder and a counter-pressure plate are used to hold the sheet metal in place before blanking, preventing movement between the inner and outer metal sheets during the blanking process. Simultaneously, the small clearance between the punch and die, along with the appropriate small radius of the die, creates a triaxial compressive stress state in the blanking area, ensuring the plastic deformation process and effectively improving the dimensional accuracy and surface quality of the stamped parts.

[0003] There are increasingly more styles of automotive brakes, which can be broadly divided into disc brakes and drum brakes. Drum brakes have a complex casting process, resulting in many defects in the cast products, high unit costs, and a scrap rate that is difficult to control effectively due to the inherent characteristics of casting. In addition, they cause significant environmental pollution and need to be improved.

[0004] Therefore, in order to solve the problem of defects in stamping and casting and reduce the complexity of subsequent processes, the purpose of this utility model is to provide a high-precision stamped part for automotive braking systems to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve the technical problems of complex stamping and casting processes and low yield rates mentioned in the background art, the technical solution adopted by this utility model is as follows: A high-precision automotive braking system stamping component, comprising a brake base plate, a first through hole at the top of the brake base plate, and multiple second through holes evenly distributed around the circumference of the first through hole. A bushing is fixedly connected to the top of the brake base plate, and the bushing penetrates through the top of the brake base plate. A reinforcing plate is fixedly connected to the top of the brake base plate, and a pin hole is opened at the top of the reinforcing plate, penetrating to the bottom of the brake base plate. A dust cover fixing ring is fixedly connected to the bottom of the brake base plate. Through the above structure, the brake base plate is integrally stamped, enhancing the strength and hardness of the overall component. Furthermore, the process is simple, easy to achieve mass production, reduces pollution emissions, and is environmentally friendly and energy-saving.

[0006] Preferably, a heat-insulating support assembly is fixedly connected to the side wall of the brake base plate, a ceramic friction block is fixedly connected to the top of the heat-insulating support assembly, a lower support plate is fixedly connected to the top of the heat-insulating support assembly, a support spring is fixedly connected to the top of the lower support plate, an upper support block is fixedly connected to the top of the support spring, and a metal friction block is fixedly connected to the top of the upper support block. With the above structure, two friction plates of different materials can brake simultaneously under different friction levels, reducing the jamming phenomenon that occurs when wear is different, giving full play to the advantages of each material, and improving the braking efficiency.

[0007] Preferably, the sidewall of the metal friction block is fixed with a support boss, the top of the support boss is reserved with a ventilation groove, and the bottom of the support boss is reserved with a groove bottom wall. With the above structure, when the metal friction block wears out quickly and its heat dissipation performance is relatively poor compared with ceramic materials, it can dissipate heat through the reserved ventilation groove to prevent it from affecting the braking effect of the ceramic friction block.

[0008] Preferably, a guide bolt is installed at the top of the lower support plate, and a first threaded hole is opened at the top of the metal friction block. The guide bolt passes through the upper support block and is connected in the first threaded hole. Through the above structure, the metal friction block can be accurately positioned during installation, thereby restricting the two friction blocks to the specified position, avoiding the danger that may occur during braking, and improving the safety of the braking device.

[0009] Preferably, the top end of the metal friction block is a first arc-shaped surface, and the bottom end of the brake base plate is a second arc-shaped surface. Through the above structure, the friction block can perfectly fit the brake base plate during the braking process, so that it can rub evenly during the braking process.

[0010] Preferably, the top end of the dust cover fixing ring is provided with a second threaded hole. Through the above structure, the connection between the dust cover and the fixing ring is fixed, preventing the dust cover from falling off due to movement during the braking process.

[0011] Preferably, the inner wall of the bushing is coated with a silicone grease coating. Through the above structure, the connection of the through hole on the braking device can be coated with heat dissipation material, so that the heat generated by friction during braking can be dissipated in time.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The high-precision automotive braking system stamping part of this utility model achieves integrated stamping of the brake base plate by first positioning, then welding, and then drilling the brake base plate. This strengthens the overall strength and hardness of the part, and the process is simple, easy to achieve mass production, reduces pollution emissions, and is environmentally friendly and energy-saving.

[0014] 2. The high-precision automotive braking system stamping part described in this utility model, through the structural setting of the support device, enables two friction pads of different materials to brake simultaneously under different friction degrees, reducing the jamming phenomenon that occurs when wear is different, giving full play to the advantages of each material, and improving braking efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the dust cover fixing ring structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the ceramic friction block structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the metal friction block structure in this utility model.

[0020] In the figure: 1. Brake base plate; 11. First through hole; 12. Second through hole; 13. Bushing; 14. Reinforcing plate; 15. Support pin hole; 16. Dust cover fixing ring; 2. Heat insulation support assembly; 21. Ceramic friction block; 22. Metal friction block; 23. Lower support plate; 24. Upper support block; 25. Support spring; 3. Support boss; 31. Groove bottom wall; 32. Ventilation groove; 4. Guide bolt; 41. First threaded hole; 5. First arc-shaped surface; 51. Second arc-shaped surface; 6. Second threaded hole; 7. Silicone grease coating. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Specific implementation examples are given below.

[0023] like Figure 1As shown in the figure, a high-precision automotive braking system stamping component according to an embodiment of the present invention includes a brake base plate 1: a first through hole 11 is provided at the top of the brake base plate 1, and a plurality of second through holes 12 are evenly provided around the circumference of the first through hole 11; a bushing 13 is fixedly connected to the top of the brake base plate 1, and the bushing 13 passes through the top of the brake base plate 1; a reinforcing plate 14 is fixedly connected to the top of the brake base plate 1, and a support pin hole 15 is provided at the top of the reinforcing plate 14, and the support pin hole 15 passes through to the bottom of the brake base plate 1; a dust cover fixing ring 16 is fixedly connected to the bottom of the brake base plate 1; during operation, the raw material of the brake base plate 1 is placed on a machining lathe and cut by a cutting machine. The outline of the brake base plate 1 is cut out, and then it is hot stamped, flanged, and ribbed to shape it completely. Then, the center part is punched to obtain the first through hole 11. Then, the bushing 13, the reinforcing plate 14, and the dust cover fixing ring 16 are welded to the first through hole 11 and welded to the corresponding positions. Then, the second through hole 12 is bored to the top of the brake base plate 1 and the support pin hole 15 is bored to the top of the reinforcing plate 14. Finally, the holes are polished with a fine boring tool. This step, by positioning first, welding and drilling last, allows the entire brake base plate 1 to be directly stamped and formed, ensuring that the strength and rigidity of the manufacturing meet the specifications, improving the yield and reducing pollution.

[0024] like Figure 3 As shown, a heat-insulating support assembly 2 is fixedly connected to the side wall of the brake base plate 1. A ceramic friction block 21 is fixedly connected to the top of the heat-insulating support assembly 2. A lower support plate 23 is fixedly connected to the top of the heat-insulating support assembly 2. A support spring 25 is fixedly connected to the top of the lower support plate 23. An upper support block 24 is fixedly connected to the top of the support spring 25. A metal friction block 22 is fixedly connected to the top of the upper support block 24. During operation, when the vehicle brakes, the ceramic friction block 21 located at the top of the heat-insulating support assembly 2 will play a braking role. The lower support plate 23 is fixed to the upper support block 24 by the support spring 25, and the metal friction block 22 is slightly higher than the ceramic friction block 21, so that the metal friction block 22 and the ceramic friction block 21 alternately brake the car. This step can effectively make the metal friction block 22, which wears out faster, brake first. After wear, the lower support plate 23 pushes the metal friction block 22 upward, which effectively makes the wear rate of the two friction blocks of different materials similar, giving full play to the advantages of their respective materials and improving the braking effect.

[0025] like Figure 3As shown, a support boss 3 is fixed to the side wall of the metal friction block 22. A ventilation groove 32 is reserved at the top of the support boss 3, and a groove bottom wall 31 is reserved at the bottom of the support boss 3. During operation, because the ceramic friction block 21 has good heat dissipation effect when braking, the metal friction block 22 will be ventilated and cooled by the ventilation groove 32 reserved between the ceramic friction block 21 and the metal friction block 22. Moreover, the support boss 3 and the groove bottom wall 31 do not contact each other for a long time. This step can make the ceramic friction block 21 and the metal friction block 22 maintain a relatively balanced use state when braking, and the wear rate of the two is relatively consistent, thus improving the service life.

[0026] like Figure 4 As shown, a guide bolt 4 is installed at the top of the lower support plate 23, and a first threaded hole 41 is opened at the top of the metal friction block 22. The guide bolt 4 passes through the upper support block 24 and is connected in the first threaded hole 41. When the metal friction block 22 is installed as a whole on the upper support block 24 during operation, the guide bolt 4 can limit the first threaded hole 41 to find a fixed position. This step can prevent the metal friction block 22 from having guidance errors during installation and placement, which could cause uneven wear of the metal friction block 22 during braking and improve the safety of the braking device.

[0027] like Figure 3 As shown, the top of the metal friction block 22 is a first arc-shaped surface 5, and the bottom of the brake base plate 1 is a second arc-shaped surface 51. When the ceramic friction block 21 and the metal friction block 22 brake the car, the first arc-shaped surface 5 can perform balanced friction braking, and the corresponding second arc-shaped surface 51 has the same curvature. This step can make the two fit together better during friction braking, thus improving the full braking response speed.

[0028] like Figure 2 As shown, the top of the dust cover fixing ring 16 is provided with a second threaded hole 6. During operation, when the dust cover is placed on the second through hole 12 and passes through the second through hole 12, the dust cover is fixed on the second threaded hole 6 using screws or bolts. This step can fix the dust cover after it is placed in a specific position, preventing it from falling off during braking.

[0029] like Figure 1 As shown, the inner wall of the bushing 13 is coated with a silicone grease coating 7. During operation, when the braking device on the brake base plate 1 is braking, the components connected by the through holes will generate heat. The silicone grease coating 7 reduces the generation of heat and accelerates heat dissipation. This step facilitates heat dissipation during braking and prevents the connected parts from getting too hot, which would reduce the braking effect.

[0030] During operation, the raw material of the brake base plate 1 is placed on a machining lathe and cut to create the outline of the brake base plate 1 using a cutting machine. It is then hot-stamped, flanged, and ribbed to achieve complete shaping. Next, a first through hole 11 is punched in the center. The bushing 13, reinforcing plate 14, and dust cover fixing ring 16 are then welded to the corresponding positions using the first through hole 11. After rough boring, a second through hole 12 is drilled at the top of the brake base plate 1, and a support pin hole 15 is drilled at the top of the reinforcing plate 14. Finally, the holes are finely bored and polished. This process, involving positioning, welding, and drilling, allows the entire brake base plate 1 to be directly stamped, ensuring that the strength and rigidity meet specifications, improving the yield rate, and... Furthermore, it reduces pollution. When the car brakes, the ceramic friction block 21 located at the top of the heat insulation support assembly 2 will play a braking role. The lower support plate 23 is fixed to the top of the heat insulation support assembly 2, which is fixed to the upper support block 24 via the support spring 25. The metal friction block 22 is slightly higher than the ceramic friction block 21, so that the metal friction block 22 and the ceramic friction block 21 alternately brake the car. This step can effectively make the metal friction block 22, which wears out faster, brake first. Then, after wear, the lower support plate 23 pushes the metal friction block 22 upward. This effectively makes the wear rate of the two friction blocks of different materials similar, giving full play to the advantages of each material and improving the braking effect. Because when braking, the ceramic friction block 21... The good heat dissipation of the ceramic friction block 21 and the metal friction block 22 is achieved through the ventilation groove 32 reserved between them. Furthermore, the support boss 3 and the bottom wall 31 of the groove do not contact each other for extended periods. This ensures that the metal friction block 22 and the ceramic friction block 21 maintain a relatively balanced state during braking, resulting in consistent wear rates and improved service life. When the metal friction block 22 is installed on the upper support block 24, the guide bolt 4 limits the first threaded hole 41 to find its fixed position. This prevents errors in the guidance of the metal friction block 22 during installation, which could cause problems when the metal friction block 22 brakes. The uneven wear and tear reduces the hazards and improves the safety of the braking device. When the ceramic friction block 21 and the metal friction block 22 brake the car, the first arc-shaped surface 5 can perform balanced friction braking, and the corresponding second arc-shaped surface 51 has the same curvature. This step allows the two to fit more closely during friction braking, improving the full braking response speed. When the dust cover is placed through the second through hole 12, it is fixed to the second threaded hole 6 using screws or bolts. This step ensures that the dust cover is fixed after being placed in a specific position, preventing it from falling off during braking. When the braking device on the brake base plate 1 brakes, the components connected by the through holes will generate heat.The silicone grease coating 7 reduces heat generation and accelerates heat dissipation. This step facilitates heat dissipation during braking operation, preventing excessive heat in connected parts and thus reducing braking effectiveness.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision automotive brake system stamping fitting, comprising a brake backing plate (1), characterized in that: The top end of the brake bottom plate (1) is provided with a first through hole (11), a plurality of second through holes (12) are uniformly arranged on the circumference of the first through hole (11), the top end of the brake bottom plate (1) is fixedly connected with a shaft sleeve (13), and the shaft sleeve (13) penetrates the top end of the brake bottom plate (1), the top end of the brake bottom plate (1) is fixedly connected with a reinforcing plate (14), the top end of the reinforcing plate (14) is provided with a support pin hole (15), and the support pin hole (15) penetrates to the bottom end of the brake bottom plate (1), and the bottom end of the brake bottom plate (1) is fixedly connected with a dust cover fixing ring (16).

2. A high precision automotive brake system stamping fitting according to claim 1, characterized in that: The side wall of the brake bottom plate (1) is fixedly connected with a heat insulation support assembly (2), the top end of the heat insulation support assembly (2) is fixedly connected with a ceramic friction block (21), the top end of the heat insulation support assembly (2) is fixedly connected with a lower support sheet (23), the top end of the lower support sheet (23) is fixedly connected with a support spring (25), the top end of the support spring (25) is fixedly connected with an upper support block (24), and the top end of the upper support block (24) is fixedly connected with a metal friction block (22).

3. A high precision automotive brake system stamping fitting according to claim 2, characterized in that: The side wall of the metal friction block (22) is fixedly connected with a support boss (3), the top end of the support boss (3) is reserved with a ventilation groove (32), and the bottom end of the support boss (3) is reserved with a groove bottom wall (31).

4. A high precision automotive brake system stamping fitting according to claim 3, characterized in that: The top end of the lower support sheet (23) is provided with a guide bolt (4), the top end of the metal friction block (22) is provided with a first threaded hole (41), and the guide bolt (4) penetrates the upper support block (24) and is connected in the first threaded hole (41).

5. A high precision automotive brake system stamping fitting according to claim 4, characterized in that: The top end of the metal friction block (22) is a first arc surface (5), the top end of the metal friction block (22) is a first arc surface (5), and the bottom end of the brake bottom plate (1) is a second arc surface (51).

6. A high precision automotive brake system stamping fitting according to claim 1, characterized in that: The top end of the dust cover fixing ring (16) is provided with a second threaded hole (6).

7. A high precision automotive brake system stamping fitting according to claim 1, characterized in that: The inner wall of the shaft sleeve (13) is coated with a silicone grease coating (7).

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