Stamping process caliper piston

Abstract

The utility model discloses a stamping process caliper piston, and relates to the technical field of caliper pistons, the stamping process caliper piston comprises a piston body, the outer side of the piston body is provided with a dustproof groove, the top end of the piston body is provided with a friction end block, firstly, the piston body is made of high-quality SPHC steel, a stamping stretching forming process is used in the production process, and the piston body is made of high-quality SPHC steel. The production energy consumption is greatly reduced due to the fact that annealing, sand blasting and phosphorus saponification are omitted in the machining process, the piston is more environmentally friendly, the circumferential strength is improved through the groove pressing and edge locking processes, the structural strength is improved through the dustproof groove and the friction end block in the piston body stamping process, the depth of the dustproof groove is 2 mm, and the service life of the dustproof groove is prolonged. Through extrusion of a die, the outer side of the friction end block is subjected to fillet treatment, meanwhile, the inner side of the friction end block protrudes, the contact face of the top end is increased, the width of the contact face of the top end of the piston is 5 mm, the contact face of the piston and a brake block is increased, and the brake effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of caliper pistons, and particularly relates to a caliper piston with a stamping process. Background Art

[0002] A caliper is a component that applies a force to the brake disc, and is a type of clamping device that functions to decelerate, stop, or maintain a stopped state of a moving wheel, and is usually used in a disc brake system.

[0003] Currently, the existing automotive caliper (such as patent number: CN215334080U) discloses a multi-piston brake caliper. The brake oil enters the first accommodating cavity and the second accommodating cavity through the oil passage system and cooperates with the piston braking part for braking. The piston braking part can achieve the clamping of both sides of the brake disc. When a problem occurs on one side, the other side can still provide a certain braking force, avoiding the risk of complete loss of braking force.

[0004] However, during the implementation of the above technical solution, it is found that there are at least the following technical problems: The piston is processed by a cutting process during production. However, the inner wall thickness of the piston processed by cutting is relatively large, resulting in a relatively large weight. Moreover, for the piston after cutting, the top contact surface is reduced, and the contact surface with the brake block is limited. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a caliper piston with a stamping process, which solves the technical problems that the piston is processed by a cutting process during production, the inner wall thickness of the piston processed by cutting is relatively large, resulting in a relatively large weight, and for the piston after cutting, the top contact surface is reduced, and the contact surface with the brake block is limited.

[0007] (2) Technical Solutions

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0009] A caliper piston with a stamping process includes a piston body. A dust-proof groove is provided on the outer side of the piston body. A friction end block is arranged at the top of the piston body. The friction end block and the piston body are of an integral structure. The friction end block is designed as an inward arc-shaped protrusion, and both are manufactured by die stamping.

[0010] (3) Beneficial Effects

[0011] 1. Through integral stamping, the piston body is produced. On the basis of not affecting the strength, the inner side wall thickness of the piston body produced by stamping is reduced, and the inner side wall thickness is 3.5 millimeters, reducing the weight of a single piston, thereby achieving a lightweight effect.

[0012] 2. During the stamping of the piston body, the dust-proof groove and the friction end block increase the structural strength. The depth of the dust-proof groove is [X] millimeters, which is formed by the extrusion of the mold. The outer side of the friction end block is rounded, and at the same time, the friction end block protrudes inward, increasing the contact surface at the top. In this way, the width of the contact surface at the top of the piston is 5 millimeters, increasing the contact surface with the brake block and improving the braking effect. Description of the Drawings

[0013] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and to be able to implement it according to the content of the specification, the following describes the preferred embodiments of the present invention in detail in conjunction with the drawings.

[0014] Figure 1 It is a structural diagram of the piston body of the present invention;

[0015] Figure 2 It is a front view of the present invention.

[0016] Legend: 11. Piston body; 12. Dust-proof groove; 13. Friction end block. Detailed Description of the Embodiment

[0017] In the embodiment of the present application, by providing a stamping process caliper piston, the problem that the piston is processed by a cutting process during production is effectively solved. However, the inner wall thickness of the piston processed by cutting is relatively large, resulting in a relatively large weight. And for the piston after cutting, the contact surface at the top is reduced, and the contact surface with the brake block is limited. Through an integrated stamping, the piston body is produced. On the basis of not affecting the strength, the thickness of the inner side wall of the piston body produced by stamping is reduced, and the thickness of the inner side wall is 3.5 millimeters, reducing the weight of a single piston, thereby achieving a lightweight effect.

[0018] Embodiment

[0019] As Figure 1 、 Figure 2 shown, the technical solution in the embodiment of the present application effectively solves the technical problem that when the brake pad is in the released state, there is a gap with the brake pad and there is no protection device. During the operation of the vehicle, the tire is likely to drive the device to fly into the caliper, resulting in damage to the caliper piston. The general idea is as follows:

[0020] In view of the problems existing in the prior art, the present utility model provides a stamping process caliper piston, which includes a piston body 11. A dust-proof groove 12 is provided on the outer side of the piston body 11, and a friction end block 13 is arranged at the top of the piston body 11. Through integral stamping, the piston body 11 is produced. On the basis of not affecting the strength, the thickness of the inner side wall of the piston body 11 produced by stamping is reduced, and the thickness of the inner side wall is 3.5 mm, which is formed by the extrusion of a mold. The outer side of the friction end block 13 is rounded, and at the same time, the friction end block 13 protrudes inward, so that the contact surface at the top is increased. In this way, the width of the contact surface at the top of the piston is 5 mm.

[0021] Working principle:

[0022] First step, first, the piston body 11 is made of high-quality SPHC steel. In the production process, the stamping and stretching forming process is used, which saves raw materials. Since annealing, sandblasting, and phosphating saponification are cancelled during the processing, the production energy consumption is greatly reduced, and it is more environmentally friendly. Through the processes of grooving and edge locking, the strength of the circumference is increased. At the same time, during the process of stamping the piston body 11, the depth of the dust-proof groove 12 is 2 mm, which is formed by the extrusion of a mold. The outer side of the friction end block 13 is rounded, and at the same time, the friction end block 13 protrudes inward, so that the contact surface at the top is increased. In this way, the width of the contact surface at the top of the piston is 5 mm, which increases the contact surface with the brake block and improves the braking effect. Through integral stamping, the piston body 11 is produced. On the basis of not affecting the strength, the thickness of the inner side wall of the piston body 11 produced by stamping is reduced, and the thickness of the inner side wall is 3.5 mm, which reduces the weight of a single piston, thus achieving the lightweight effect. At the same time, the stamping process can reduce the energy consumption of equipment use, with high efficiency and low cost.

[0023] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present utility model and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A stamping process caliper piston, comprising a piston body (11), characterized in that: The piston body (11) is made of SPHC steel and is formed by integral stamping. The inner wall thickness of the piston body (11) is 3.5 mm.

2. A stamping caliper piston according to claim 1, characterized in that: A dustproof groove (12) is provided on the outer side of the piston body (11); The dustproof groove (12) is arranged in the upper half of the piston body (11), and the depth of the dustproof groove (12) is 2 mm.

3. A stamping caliper piston according to claim 1, characterized in that: A friction end block (13) is provided at the top end of the piston body (11); The friction end block (13) is designed to be an arc-shaped protrusion facing inward, and the width of the outer side is 5 mm.

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