Index plate and brake expansion ring structure thereof

Abstract

The utility model relates to an index plate and a brake expansion ring structure thereof, the index plate comprises a shell and a rotating shaft, one side of the shell is provided with a connecting hole connected with a driving rod, the driving rod extends into the connecting hole to connect and drive the rotating shaft installed in the shell to rotate, and the brake expansion ring structure is installed between the shell and the rotating shaft. The inner side of the brake expansion ring structure abuts against the rotating shaft, when the brake expansion ring structure is controlled to generate large pressure, the inner side of the brake expansion ring structure can deform, and therefore the rotating shaft is tightly pressed to achieve the braking function.

Description

Technical Field

[0001] The utility model relates to the technical field of indexing plates, and particularly to an indexing plate and a brake expansion ring structure thereof. Background Art

[0002] An indexing plate is a component commonly found in automated machining machines, used to achieve precise rotation and positioning of workpieces. An important component for achieving the positioning function of the indexing plate is the brake expansion ring. When the workpiece on the indexing plate is rotated to the required position, the brake expansion ring can lock the indexing plate to prevent position deviation caused by vibration or other factors during the machining process and ensure machining accuracy. However, the overall machining difficulty of the brake expansion ring is high, so it is necessary to improve the structure of the brake expansion ring. Summary of the Utility Model

[0003] In view of the problems in the prior art, the purpose of the present utility model is to retain the braking function of the brake expansion ring while significantly reducing the overall machining difficulty.

[0004] According to the purpose of the present utility model, an indexing plate is provided, including a housing and a rotating shaft. A connection hole for connecting a driving rod is provided on one side of the housing. The driving rod extends into the connection hole to connect and drive the rotation of the rotating shaft installed in the housing, and the brake expansion ring structure is installed between the housing and the rotating shaft. The inner side of the brake expansion ring structure abuts against the rotating shaft. When the brake expansion ring structure is controlled to generate a large pressure, it can cause the inner side of the brake expansion ring structure to deform, thereby pressing tightly against the rotating shaft to achieve the braking function. The brake expansion ring structure includes a body. The body is provided with a through opening. A ring-shaped groove is recessed on one surface of the body around the through opening, so that a ring-shaped thin piece is formed between the ring-shaped groove and the through opening. The bottom of the ring-shaped groove is separated from the other surface of the body by a first distance.

[0005] According to the purpose of the present utility model, a brake expansion ring structure of an indexing plate is further provided, including a body. The body is provided with a through opening. A ring-shaped groove is recessed on one surface of the body around the through opening, so that a ring-shaped thin piece is formed between the ring-shaped groove and the through opening. The bottom of the ring-shaped groove is separated from the other surface of the body by a first distance.

[0006] Among them, a plurality of grooves are provided on the inner wall of the through opening. The bottoms of these grooves are separated from the tops of the adjacent ring-shaped thin pieces by a second distance.

[0007] In summary, the ring-shaped thin piece of the present utility model is formed by machining a through opening and a ring-shaped groove on the body. The ring-shaped groove can be made by using an end face grooving tool. This method is relatively simple compared to the overall machining difficulty of the traditional brake expansion ring, and still retains the required thin piece shape and locks the indexing plate during braking. Description of the Drawings

[0008] Figure 1 This is a schematic view of the external appearance of the present utility model assembled in a dividing plate;

[0009] Figure 2 is Figure 1 a schematic cross-sectional view in the A-A direction of;

[0010] Figure 3 This is a three-dimensional external appearance schematic view of the present utility model;

[0011] Figure 4 is Figure 3 a schematic cross-sectional view in the B-B direction of;

[0012] Figure 5 is Figure 4 a partial enlarged schematic view of.

[0013] Icon and symbol description:

[0014] 1: Housing

[0015] 10: Connection hole

[0016] 2: Rotating shaft

[0017] 3: Brake expansion ring structure

[0018] 30: Body

[0019] 32: Through opening

[0020] 34: Annular groove

[0021] 36: Annular thin piece

[0022] 38: Groove

[0023] A-A: Section line

[0024] B-B: Section line Specific implementation manner

[0025] Examples of the present utility model will be further described by means of the attached Figures 1 to 5 As much as possible, in the drawings and the description, the same reference numerals represent the same or similar components. In the drawings, for the sake of simplicity and convenience of marking, the shapes and thicknesses may be exaggerated. It can be understood that the components not specifically shown in the drawings or described in the description are well known to those skilled in the art. Those skilled in the art can make various changes and modifications based on the content of the present utility model.

[0026] Please refer to Figure 1 and Figure 2, the indexing plate of the present utility model includes a housing 1 and a rotating shaft 2. The rotating shaft 2 is arranged inside the housing 1. A connecting hole 10 is provided on one side of the housing 1. The driving rod extends into the connecting hole 10 to connect and drive the rotation of the rotating shaft 2, and the brake expansion ring structure 3 is installed between the housing 1 and the rotating shaft 2. The inner side of the brake expansion ring structure 3 abuts against the rotating shaft 2. When the brake expansion ring structure 3 is controlled to generate a large pressure, it can cause the inner side of the brake expansion ring structure 3 to deform, thereby pressing tightly against the rotating shaft 2 to achieve the brake braking function.

[0027] Please refer to Figures 3 to 5 , the brake expansion ring structure 3 includes a body 30. The body 30 can be a solid circular block, and this solid circular block can further be made of cast iron, steel, or alloy materials. The body 30 is provided with a through opening 32. One surface of the body 30 is recessed with an annular groove 34 around the through opening 32, so that an annular thin piece 36 is formed between the annular groove 34 and the through opening 32. The bottom of the annular groove 34 is separated from the other surface of the body 30 by a first distance d1. The body 30 maintains the strength of the annular thin piece 36 by means of the first distance d1 and the thickness of the annular thin piece 36.

[0028] In some embodiments of the present utility model, a plurality of grooves 38 are provided on the inner wall of the through opening 32 to increase the fixing ability of the annular groove 34 by means of the plurality of grooves 38. In addition, the bottom of these grooves 38 is separated from the top of the adjacent annular thin piece 36 by a second distance d2.

[0029] In some embodiments of the present utility model, the annular groove 34 is made by using an end face grooving tool. This end face grooving tool can be a KFMS type end face groove cutter sold by Kyocera Corporation. The annular groove 34 can be made on the body 30 after or before making the through opening 32 on the body 30 by using the end face grooving tool.

[0030] In summary, through the novel structural design of the brake expansion ring of the indexing plate of the present utility model, the indexing plate retains the original function of braking and positioning the rotating shaft. Also, due to the novel structural design of the brake expansion ring, the processing method of the brake expansion ring becomes simple and easy, thereby improving the problem of high overall processing difficulty of the traditional brake expansion ring.

[0031] The above is only an example to illustrate the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation. All simple substitutions and equivalent changes made according to the content of the claims and the patent specification of the present utility model fall within the scope of the patent application of the present utility model.

Claims

1. An indexing plate, characterized in that, Comprising: A housing, on one side of which there is a connection hole for a driving rod to extend into the housing; A rotating shaft, arranged inside the housing and connected to the driving rod extending into the housing; A brake expansion ring structure, arranged between the housing and the rotating shaft, and the inner side of the brake expansion ring structure abuts against the rotating shaft; Wherein, the brake expansion ring structure includes a body, the body is provided with a through opening, one surface of the body is recessed with an annular groove around the through opening, the body forms an annular thin member between the annular groove and the through opening, and the bottom of the annular groove is separated from the other surface of the body by a first distance.

2. The indexing plate according to claim 1, characterized in that, Wherein, a plurality of grooves are provided on the inner wall of the through opening.

3. The indexing plate according to claim 2, characterized in that, Wherein, the bottom of these grooves is separated from the top of the adjacent annular thin member by a second distance.

4. The brake expansion ring structure of the indexing plate according to any one of claims 1 to 3, characterized in that, Including a body, the body is provided with a through opening, one surface of the body is recessed with an annular groove around the through opening, the body forms an annular thin member between the annular groove and the through opening, and the bottom of the annular groove is separated from the other surface of the body by a first distance.

5. The brake expansion ring structure of the indexing plate according to claim 4, characterized in that, Wherein, a plurality of grooves are provided on the inner wall of the through opening.

6. The brake expansion ring structure of the indexing plate according to claim 5, characterized in that, Wherein, the bottom of these grooves is separated from the top of the adjacent annular thin member by a second distance.

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