CN216802647U - Powerful brake equipment of revolving stage - Google Patents
Powerful brake equipment of revolving stage Download PDFInfo
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- CN216802647U CN216802647U CN202123364721.5U CN202123364721U CN216802647U CN 216802647 U CN216802647 U CN 216802647U CN 202123364721 U CN202123364721 U CN 202123364721U CN 216802647 U CN216802647 U CN 216802647U
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Abstract
The utility model discloses a turntable strong brake device which comprises a turntable body, wherein the turntable body comprises a turntable shell and a dividing shaft positioned in the center of the turntable shell, an output disc is arranged at the front end of the turntable shell, a bearing is arranged at the shaft step at the front end of the dividing shaft, a cambered surface cam is arranged below the dividing shaft, a needle bearing is arranged at the position, corresponding to the cambered surface cam, outside the dividing shaft, the brake device is arranged behind the turntable shell, the brake device comprises a brake pad fixed on the dividing shaft, a first brake piston and a second brake piston are arranged behind the brake pad, a brake cylinder barrel is arranged between the first brake piston and the second brake piston, a brake rear cover is arranged behind the turntable shell, and the brake rear cover, the first brake piston, the brake cylinder barrel and the second brake piston are fixed through bolts. Compared with the prior art, the utility model provides larger braking force, and is convenient for locking and positioning the turntable and heavy cutting of a numerical control machine tool.
Description
Technical Field
The utility model relates to the technical field of rotary table structures, in particular to a powerful brake device for a rotary table.
Background
Currently, the process is carried out. When the numerical control machine tool is used for processing parts with complex space curved surfaces, a multi-axis linkage machine tool is used, a machined part of the multi-axis linkage machine tool is generally clamped on a workbench or a rotary table for cutting, usually, the machine tool positions the rotary table at a required position through a control system and a detection system, and then a rotary table brake structure locks a rotating shaft on the rotary table.
In the prior art, a brake structure of a turntable generally comprises a brake disc mounted on a main shaft and a stop disc capable of moving axially along the main shaft, and when braking is required, the stop disc is driven to move towards a direction close to the brake disc, so that the stop disc is in contact with the surface opposite to the brake disc, and the turntable stops rotating; in the existing rotary table brake structure, a single-chip brake piston structure is adopted, so that the brake force is insufficient, and the rotary table brake structure is difficult to be suitable for heavy cutting work of a numerical control machine tool.
Disclosure of Invention
According to the technical problem to be solved, the rotary table strong brake device is provided.
In order to achieve the purpose, the utility model discloses a powerful braking device for a rotary table, which comprises a rotary table body, the turntable body comprises a turntable shell and a dividing shaft positioned at the central position of the turntable shell, an output disc is arranged at the front end of the turntable shell, a bearing is arranged at the shaft step at the front end of the dividing shaft, an arc cam is arranged below the dividing shaft, a needle bearing is arranged at the position, corresponding to the cambered surface cam, of the outer side of the partition shaft, the brake device is arranged behind the rotary table shell, the brake device comprises a brake pad fixed on the dividing shaft, a first brake piston and a second brake piston are arranged behind the brake pad, a brake cylinder barrel is arranged between the first brake piston and the second brake piston, the rear of the rotary table shell is provided with a brake rear cover, and the brake rear cover, the first brake piston, the brake cylinder barrel and the second brake piston are fixed through bolts.
Furthermore, a hydraulic oil groove with an F-shaped section is formed in the brake rear cover and connected with an external hydraulic pressure source.
Furthermore, a groove which is axially arranged in the circumferential direction and the inner side is formed in the first brake piston, a first oil cavity is formed in the rear of the first brake piston, an oil hole corresponding to a hydraulic oil groove close to the dividing shaft is formed in the first brake piston, and the first oil cavity and the oil hole are respectively communicated with the hydraulic oil groove.
Furthermore, a third sealing ring is arranged in a circumferential groove of the first brake piston, the brake cylinder barrel is arranged in the axial groove, a groove is formed in the inner side of the brake cylinder barrel, and first sealing rings are arranged on the inner side and the outer side of the oil hole of the first brake piston and connected with the brake cylinder barrel and the brake rear cover at corresponding positions respectively.
Furthermore, the second brake piston is arranged in a groove on the inner side of the brake cylinder barrel, the second brake piston is provided with a groove in the circumferential direction and the axial direction of the inner side, a second oil cavity is arranged behind the second brake piston, and the second oil cavity is communicated with the hydraulic oil groove through an oil hole in the first brake piston.
Furthermore, a fourth sealing ring is arranged in the circumferential groove of the second brake piston, and a fixing bolt is arranged in the axial groove of the second brake piston.
Furthermore, a second sealing ring in axial contact with a second brake piston is arranged on the side, close to the dividing shaft, of the brake cylinder barrel, and a second sealing ring in axial contact with a first brake piston is arranged on the side, close to the dividing shaft, of the brake rear cover.
Furthermore, the first brake piston and the second brake piston are made of spring steel, and the brake sheet material is made of spring steel.
Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a powerful braking device for a rotary table, which adopts a plurality of braking pistons and takes hydraulic oil as power to provide larger braking force, thereby facilitating the locking and positioning of the rotary table and the heavy cutting work of a numerical control machine tool.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a turntable strong brake device according to the present invention.
Fig. 2 is a partially enlarged view a of a turntable power brake apparatus according to the present invention.
In the figure: 1 is a rotary table shell; 2 is a needle bearing; 3 is an output disc; 4 is a bearing; 5 is a dividing shaft; 6 is a cambered surface cam; 7 is a hydraulic oil tank; 8 is a brake rear cover; 9 is a first oil chamber; 10 is a second oil chamber; 11 is a first sealing ring; 12 is a second sealing ring; 13 is a third sealing ring; 14 is a first brake piston; 15 is a brake block; 16 is a brake cylinder barrel; 17 is a fourth sealing ring; and 18 is a second brake piston.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
As shown in fig. 1 and fig. 2, a powerful braking device for a turntable comprises a turntable body, the turntable body comprises a turntable housing 1 and a dividing shaft 5 located at the center of the turntable housing 1, an output disc 4 is arranged at the front end of the turntable housing 1, a bearing 3 is arranged at the shaft step at the front end of the dividing shaft 5, an arc cam 6 is arranged below the dividing shaft 5, a needle bearing 2 is arranged at the outer side of the dividing shaft 5 corresponding to the arc cam 6, the braking device is arranged at the rear of the turntable housing 1, the braking device comprises a brake pad 15 fixed on the dividing shaft 5, a first brake piston 14 and a second brake piston 18 are arranged behind the brake pad 15, a brake cylinder 16 is arranged between the first brake piston 14 and the second brake piston 18, a brake rear cover 8 and a first brake piston 14 are arranged behind the turntable housing 1, the brake cylinder 16 and the second brake piston 18 are fixed by bolts.
A hydraulic oil groove 7 with an F-shaped section is formed in the brake rear cover 8, the hydraulic oil groove 7 is connected with an external oil pressure source, and hydraulic transmission can provide larger thrust.
The first brake piston 14 is provided with a groove with the circumferential direction and the axial direction at the inner side, the rear part of the first brake piston 14 is provided with a first oil cavity 9, the first brake piston 14 is provided with an oil hole corresponding to the hydraulic oil groove 7 close to the cutting shaft, the first oil cavity 9 and the oil hole are respectively communicated with the hydraulic oil groove 7, and the hydraulic oil conveyed by the hydraulic oil groove 7 provides the axial braking force for the first brake piston 14.
The third sealing ring 13 is arranged in a circumferential groove of the first brake piston 14, the brake cylinder 16 is arranged in an axial groove, a groove is formed in the inner side of the brake cylinder 16, the first sealing ring 11 is arranged on the inner side and the outer side of an oil hole of the first brake piston 14 and connected with the brake cylinder 16 and the brake rear cover 8 at the corresponding position, and the third sealing ring 13 provides radial sealing force to prevent hydraulic oil from leaking.
The second brake piston 18 is arranged in a groove on the inner side of the brake cylinder 16, the second brake piston 18 is provided with a groove in the circumferential direction and the axial direction of the inner side, the rear part of the second brake piston 18 is provided with a second oil chamber 10, the second oil chamber 10 is communicated with the hydraulic oil groove 7 through an oil hole on the first brake piston 14, and the hydraulic oil conveyed through the hydraulic oil groove 7 provides the axial braking force for the second brake piston 18.
A fourth sealing ring 17 is arranged in a circumferential groove of the second brake piston 18, a fixing bolt is arranged in an axial groove of the second brake piston 18, and the fourth sealing ring 17 provides radial sealing force to prevent hydraulic oil from leaking.
The brake cylinder barrel 16 is provided with a second sealing ring 12 which is in axial contact with a second brake piston 18 near the side of the dividing shaft 5, the brake rear cover 8 is provided with a second sealing ring 12 which is in axial contact with a first brake piston 14 near the side of the dividing shaft 5, and the second sealing ring 12 provides axial sealing force to prevent hydraulic oil from leaking to the position of the dividing shaft 5 to influence the performance of equipment.
The first brake piston 14 and the second brake piston 18 are made of spring steel, the brake pad 15 is made of spring steel, and the spring steel is subjected to a certain load due to the elastic deformation capacity, does not generate permanent deformation after the load is removed, and has good mechanical property and fatigue property.
The working principle is as follows: the utility model discloses a turntable strong brake device, wherein in a brake pre-state, a brake piston, a brake cylinder 16 and a brake pad 15 are in a separated state, the brake pad 15 is locked at the rear end of a dividing shaft 5 through a bolt, and when a turntable works, the brake pad 15 rotates along with the dividing shaft 5; when the turntable stops, an external oil pressure source transmits brake hydraulic oil to enter a first oil cavity 9 and a second oil cavity 10 through a hydraulic oil tank 7, the hydraulic oil applies axial force to enable a first brake piston 14 and a second brake piston 18 to elastically deform, the first brake piston 14 and the second brake piston 18 simultaneously press a brake pad 15 to apply axial force to the brake pad, and the brake pad 15 elastically deforms and presses the end face of the turntable shell 1 to form a braking effect; when the supply of the hydraulic oil is stopped, the first brake piston 14 and the second brake piston 18 recover the elastic deformation, are separated from the brake pad 15 and return to the pre-braking state, the brake pad 15 recovers the elastic deformation, are separated from the turntable housing 1 and return to the pre-braking state, and the braking process is finished.
The points to be explained are as follows: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed; second, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a powerful brake equipment of revolving stage, includes the revolving stage body, its characterized in that: the turntable body comprises a turntable shell (1) and a dividing shaft (5) located at the center of the turntable shell (1), an output disc (4) is arranged at the front end of the turntable shell (1), a bearing (3) is arranged at the shaft step position of the front end of the dividing shaft (5), an arc cam (6) is arranged below the dividing shaft (5), a needle bearing (2) is arranged at the position, corresponding to the arc cam (6), of the outer side of the dividing shaft (5), the brake device is arranged at the rear of the turntable shell (1), the brake device comprises a brake pad (15) fixed on the dividing shaft (5), a first brake piston (14) and a second brake piston (18) are arranged at the rear of the brake pad (15), a brake rear cover (8) is arranged between the first brake piston (14) and the second brake piston (18), a brake pad (16) is arranged between the turntable piston (14) and the second brake piston (18), and a brake rear cover (8) is arranged at the rear of the cylinder shell (1), the brake rear cover (8), the first brake piston (14), the brake cylinder barrel (16) and the second brake piston (18) are fixed through bolts.
2. A turntable power brake apparatus as claimed in claim 1, wherein: and a hydraulic oil tank (7) with an F-shaped section is arranged in the brake rear cover (8), and the hydraulic oil tank (7) is connected with an external oil pressure source.
3. A turntable power brake apparatus as claimed in claim 1, wherein: the brake device is characterized in that a groove with the axial direction of the circumferential direction and the axial direction of the inner side is formed in the first brake piston (14), a first oil cavity (9) is formed in the rear of the first brake piston (14), an oil hole corresponding to a hydraulic oil groove (7) close to the cutting shaft (5) is formed in the first brake piston (14), and the first oil cavity (9) and the oil hole are respectively communicated with the hydraulic oil groove (7).
4. A turntable power brake apparatus as claimed in claim 3, wherein: the brake device is characterized in that a third sealing ring (13) is arranged in a circumferential groove of the first brake piston (14), the brake cylinder barrel (16) is arranged in an axial groove, a groove is formed in the inner side of the brake cylinder barrel (16), and first sealing rings (11) are arranged on the inner side and the outer side of an oil hole of the first brake piston (14) and connected with the brake cylinder barrel (16) and the brake rear cover (8) which correspond to the position respectively.
5. A turntable power brake apparatus as claimed in claim 1, wherein: the second brake piston (18) is arranged in a groove on the inner side of the brake cylinder barrel (16), a groove in the circumferential direction and the axial direction of the inner side is formed in the second brake piston (18), a second oil cavity (10) is formed in the rear of the second brake piston (18), and the second oil cavity (10) is communicated with the hydraulic oil groove (7) through an oil hole in the first brake piston (14).
6. A turntable power brake apparatus as claimed in claim 5, wherein: and a fourth sealing ring (17) is arranged in a circumferential groove of the second brake piston (18), and a fixing bolt is arranged in an axial groove of the second brake piston (18).
7. A turntable power brake apparatus as claimed in claim 1, wherein: and a second sealing ring (12) in axial contact with a second brake piston (18) is arranged on the side, close to the dividing shaft, of the brake cylinder barrel (16), and a second sealing ring (12) in axial contact with a first brake piston (14) is arranged on the side, close to the dividing shaft (5), of the brake rear cover (8).
8. A turntable power brake apparatus as claimed in claim 1, wherein: the first brake piston (14) and the second brake piston (18) are made of spring steel, and the brake pad (15) is made of spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364721.5U CN216802647U (en) | 2021-12-29 | 2021-12-29 | Powerful brake equipment of revolving stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364721.5U CN216802647U (en) | 2021-12-29 | 2021-12-29 | Powerful brake equipment of revolving stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216802647U true CN216802647U (en) | 2022-06-24 |
Family
ID=82061547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123364721.5U Active CN216802647U (en) | 2021-12-29 | 2021-12-29 | Powerful brake equipment of revolving stage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216802647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276160A (en) * | 2023-05-22 | 2023-06-23 | 铁恒精密技术(常州)有限公司 | Rear piston locking mechanism for spindle |
-
2021
- 2021-12-29 CN CN202123364721.5U patent/CN216802647U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276160A (en) * | 2023-05-22 | 2023-06-23 | 铁恒精密技术(常州)有限公司 | Rear piston locking mechanism for spindle |
| CN116276160B (en) * | 2023-05-22 | 2023-08-01 | 铁恒精密技术(常州)有限公司 | Rear piston locking mechanism for spindle |
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