Brake rebound mechanism
By using equal-height shoulder bolts to connect the brake ring and cylinder housing on the four-axis rotary table and adding disc springs, the problem of the brake ring not being able to return to its original position is solved, thus achieving the stability and extended service life of the brake ring.
Patent Information
- Application Number
- CN202520607357.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The brake rings of existing four-axis rotary tables cannot automatically return to their original position under unidirectional pressure supply, causing friction between the brake rings and brake pads and reducing their service life.
The cylinder housing and brake ring are connected by equal-height shoulder bolts and equipped with disc springs. The spring force of the disc springs allows the brake rings to return to their original position after pressure is released, thus avoiding friction.
This effectively prevents the brake ring from rotating axially during use, extending the service life of both the brake ring and brake pads.
Smart Images

Figure CN223739925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC center tooling equipment technology, and in particular to a brake rebound mechanism. Background Technology
[0002] Four-axis rotary tables have become an indispensable functional component in CNC machining centers. Currently, most four-axis rotary tables on the market use disc brakes. In this structure, unidirectional pressure supply can effectively push out the brake ring and position the workpiece. However, this unidirectional pressure supply will cause the brake ring itself to not automatically return to the origin, resulting in some friction between the brake ring and the brake pad, which reduces the service life of the brake ring and brake pad. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a brake rebound mechanism.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A brake rebound mechanism includes a housing, in which a cylinder housing assembly and a rotating assembly are disposed, and a bearing is disposed on one side of the housing;
[0006] The cylinder housing assembly includes a cylinder housing, a brake ring is connected to the cylinder housing by equal-height shoulder bolts, and a disc spring is provided between the cylinder housing and the equal-height shoulder bolts.
[0007] The rotating assembly includes a rotating shaft, and a brake pad is fitted on the outer wall of the rotating shaft.
[0008] In addition, a preferred structure is that the rotating shaft and the brake pad are connected and fixed together by multiple screws, and the cylinder shell and the housing are connected and fixed together by multiple screws.
[0009] Furthermore, in a preferred configuration, the brake ring is fitted onto the outer side of one end of the cylinder housing.
[0010] Furthermore, in a preferred configuration, after the cylinder housing assembly, rotating assembly, and housing are assembled, the cylinder housing assembly is located on the side away from the bearing, and the brake ring of the cylinder housing assembly is adjacent to the brake pad.
[0011] In addition, a preferred structure is that the cylinder housing has a mounting groove on the side away from the brake pad at the height of the shoulder bolt.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, the cylinder housing and brake ring are connected by equal-height shoulder bolts, which prevents the brake ring from rotating axially during use. At the same time, the disc spring allows the brake ring to be effectively reset to its original position after pressure is released, preventing the brake ring and brake pad from continuing to rub against each other after air leakage, reducing wear on the brake ring and brake pad, and extending their service life. Attached Figure Description
[0014] Figure 1 This is a cross-sectional structural diagram of a brake rebound mechanism proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of a brake rebound mechanism proposed in this utility model.
[0016] In the diagram: 1. Cylinder housing; 2. Brake ring; 3. Housing; 4. Brake pad; 5. Rotating shaft; 6. Disc spring; 7. Equal-height shoulder bolt; 8. Bearing. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Reference Figure 1-2 A brake rebound mechanism includes a housing 3, in which a cylinder housing assembly and a rotating assembly are disposed, and a bearing 8 is disposed on one side of the housing 3; wherein the bearing is connected to a rotating shaft 5 on one side.
[0019] Furthermore, the cylinder housing assembly includes a cylinder housing 1, which is connected to a brake ring 2 via a height shoulder bolt 7, and a disc spring 6 is provided between the cylinder housing 1 and the height shoulder bolt 7.
[0020] Meanwhile, the rotating assembly includes a rotating shaft 5, and a brake pad 4 is sleeved on the outer wall of the rotating shaft 5.
[0021] Meanwhile, the rotating shaft 5 and the brake pad 4 are connected and fixed by multiple screws, and the cylinder shell 1 and the housing 3 are connected and fixed by multiple screws.
[0022] Furthermore, the brake ring 2 is fitted onto the outer side of one end of the cylinder housing 1.
[0023] Furthermore, after the cylinder housing assembly, rotating assembly, and housing 3 are assembled, the cylinder housing assembly is located on the side away from the bearing 8, and the brake ring 2 of the cylinder housing assembly is adjacent to the brake pad 4.
[0024] Furthermore, an installation groove is provided on the side of the cylinder housing 1 away from the brake pad 4 at the same height shoulder bolt 7.
[0025] Meanwhile, it is worth noting that the specific structure and working principle of the disc spring 6 are existing technologies that are already publicly available on the market, and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate on them further.
[0026] In this embodiment, by connecting the cylinder housing 1 and the brake ring 2 with equal-height shoulder bolts 7, the axial rotation of the brake ring 2 during use is avoided, thus ensuring the stability of the brake ring 2.
[0027] Meanwhile, a disc spring 6 is provided between the equal-height shoulder bolt 7 and the cylinder housing 1. After depressurization, the brake ring 2 can be effectively reset to its original position by the elastic force of the disc spring 6, so as to prevent the brake ring 2 and brake pad 4 from continuing to rub after depressurization, reduce the wear of the brake ring 2 and brake pad 4, and extend their service life.
[0028] In this invention, the cylinder housing 1 and the brake ring 2 are connected by equal-height shoulder bolts 7, which prevents the brake ring 2 from rotating axially during use. At the same time, the disc spring 6 is provided so that after depressurization, the brake ring 2 can be effectively reset to its original position by the elastic force of the disc spring 6, which prevents the brake ring 2 and brake pad 4 from continuing to rub after depressurization, reduces the wear of the brake ring 2 and brake pad 4, and extends their service life.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A brake rebound mechanism comprising a housing (3), characterised in that, The shell (3) is internally provided with a cylinder shell assembly and a rotating assembly, and one side of the shell (3) is provided with a bearing (8); The cylinder shell assembly comprises a cylinder shell (1), the cylinder shell (1) is connected with a brake ring (2) through an equal-height shaft shoulder protruding bolt (7), and a disc spring (6) is arranged between the cylinder shell (1) and the equal-height shaft shoulder protruding bolt (7); The rotating assembly comprises a rotating shaft (5), and the outer wall of the rotating shaft (5) is sleeved with a brake pad (4).
2. A brake rebound mechanism according to claim 1, wherein The rotating shaft (5) and the brake pad (4) are connected and fixed through a plurality of screws, and the cylinder shell (1) and the shell (3) are connected and fixed through a plurality of screws.
3. A brake rebound mechanism according to claim 1, wherein The brake ring (2) is sleeved to one end of the outer side of the cylinder shell (1).
4. The brake rebound mechanism of claim 1, wherein, When the cylinder shell assembly, the rotating assembly and the shell (3) are assembled, the cylinder shell assembly is located away from the bearing (8) side, and the brake ring (2) of the cylinder shell assembly is adjacent to the brake pad (4).
5. The brake rebound mechanism of claim 1, wherein, The cylinder shell (1) is provided with a mounting groove at the equal-height shaft shoulder protruding bolt (7) away from the brake pad (4) side.