CN214603102U - Reliable large-drift-diameter rotary table end face brake structure - Google Patents
Reliable large-drift-diameter rotary table end face brake structure Download PDFInfo
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- CN214603102U CN214603102U CN202120165991.4U CN202120165991U CN214603102U CN 214603102 U CN214603102 U CN 214603102U CN 202120165991 U CN202120165991 U CN 202120165991U CN 214603102 U CN214603102 U CN 214603102U
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- rotary table
- friction plate
- connecting disc
- fixedly connected
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Abstract
The utility model provides a reliable large-drift-diameter rotary table end face brake structure, which comprises a rotary table box body, a connecting disc, a movable pressing plate, an adjusting pad, a movable friction plate and a rotary table rotor, wherein the end face of the rotary table box body is fixedly connected with the connecting disc, one side end face of the connecting disc is fixedly connected with a rear cover, and one side end face of the connecting disc is fixedly connected with the pressing plate; the connecting disc and the rear cover are sealed through an O-shaped sealing ring; the rear cover is also provided with a pressure oil inlet and a pressure oil outlet, and the rear end face of the rear cover is also provided with a PUI-shaped sealing ring; a static friction plate and a spacer are also fixedly connected between the connecting disc and the pressing plate through screws; the dynamic pressure plate is used for fixedly connecting the adjusting pad and the dynamic friction plate to the rear end face of the rotary table rotor through screws, and a gap is formed between the dynamic friction plate and the static friction plate. The utility model discloses simple structure, easily assembly increases the frictional resistance of frictional contact face when the brake, improves brake moment of torsion and brake stability.
Description
Technical Field
The utility model relates to a brake structure especially relates to a reliable big latus rectum revolving stage terminal surface brake structure.
Background
At present, when a 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 firstly positions the rotary table at a required position through a control system and a detection system, and then a rotary table brake mechanism locks a rotary shaft on the rotary table.
The braking mode on the turntable in the prior art is as follows: end face tooth locking, encircling locking, electromagnetic clutches and the like. The end face tooth locking, the encircling locking and the electromagnetic clutch are limited by space positions, so that the cost is high, and the installation requirement is strict.
SUMMERY OF THE UTILITY MODEL
The utility model aims at mainly solving the problem that the brake structure is complicated among the prior art, and is with high costs, requires strictly to install, provides a simple structure, convenient assembling, big latus rectum revolving stage terminal surface brake structure with low costs.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a reliable large-diameter rotary table end face brake structure comprises a rotary table box body, a connecting disc, a movable pressing plate, an adjusting pad, a movable friction plate and a rotary table rotor, wherein the end face of the rotary table box body is fixedly connected with the connecting disc, one side end face of the connecting disc is fixedly connected with a rear cover, and one side end face of the connecting disc is fixedly connected with the pressing plate; the connecting disc and the rear cover are sealed through an O-shaped sealing ring;
the rear cover is also provided with a pressure oil inlet and a pressure oil outlet, and the rear end face of the rear cover is also provided with a PUI-shaped sealing ring; a static friction plate and a spacer are also fixedly connected between the connecting disc and the pressing plate through screws;
the dynamic pressure plate is used for fixedly connecting the adjusting pad and the dynamic friction plate to the rear end face of the rotary table rotor through screws, and a gap is formed between the dynamic friction plate and the static friction plate.
The further improvement is that the dynamic friction plate is of a thin-wall circular ring structure.
The further improvement is that the thin-wall circular ring structure is a combination of multi-piece circular arc ring structures. The further improvement is that the end face of the dynamic friction plate is provided with air holes, so that the friction force between the static friction plate and the dynamic friction plate can be increased, the stability of braking is ensured, and a certain heat dissipation effect is achieved.
Compared with the prior art, the beneficial effects of the utility model are that: move the friction disc and set up in the clearance between two static friction discs, move the friction disc and for the combination of multi-disc formula circular arc ring structure for satisfying the big latus rectum requirement of revolving stage. The friction contact surface of the dynamic friction plate is provided with cooling air holes, and two sides of the friction contact surface of the dynamic friction plate are in contact with the two static friction plates. Through the mode, the utility model has the advantages that the structure is simple, the assembly is easy, and simultaneously, when the movable friction plate is subjected to large torque, the movable friction plate and the static friction plate can keep better laminating rate, and the axial impact received by the rotary table rotor is reduced, so that the service life and the reliability of the brake structure are improved; and the friction resistance of the friction contact surface is increased during braking, and the braking torque and the braking stability are improved.
Drawings
FIG. 1 is a schematic diagram of the end face brake structure of the reliable large-bore rotary table of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A according to the present invention;
FIG. 3 is a structural diagram of the dynamic friction plate of the present invention;
reference numerals: 1. the rotary table comprises a rotary table box body, 2 parts of a connecting disc, 3 parts of a rear cover, 4 parts of an O-shaped sealing ring, 5 parts of a pressure oil inlet, 6 parts of a PUI-shaped sealing ring, 7 parts of a movable pressing plate, 8 parts of a screw M8 multiplied by 30, 9 parts of a rotary table rotor, 10 parts of a screw M8 multiplied by 60, 11 parts of a pressure oil outlet, 12 parts of an adjusting pad, 13 parts of a movable friction plate, 14 parts of a static friction plate, 15 parts of a spacer pad, 16 parts of a pressing plate and 17 parts of an air hole.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1-3, the reliable large-drift-diameter turntable end face brake structure comprises a turntable box body 1 and a connecting disc 2, wherein the connecting disc 2 is fixedly connected with the turntable box body 1 through a screw. The rear cover 3 and the pressure plate 16 are fixedly connected to the front and rear end surfaces of the connection plate 2 by screws 10. The rear end face of the rear cover 3 is provided with a pressure oil inlet 5 and a pressure oil outlet 11, and a gap between the connecting disc 2 and the rear cover 3 is sealed through an O-shaped sealing ring 4. And a PUI-shaped sealing ring 6 is arranged on the rear end face of the rear cover 3, and the PUI-shaped sealing ring 6 can be equivalent to a piston which slides and rubs on the inner wall of the connecting disc 2. The static friction plate 14 and the spacer 15 are fixedly connected between the connecting disc 2 and the pressure plate 16 through the screws 10.
The movable platen 7 fixedly connects the adjusting pad 12 and the movable friction plate 13 to the rear end face of the turntable rotor 9 through the screw 8. A certain gap is formed between the dynamic friction plate 13 and the static friction plate 14. The dynamic friction plates 13 rotate together with the turntable rotor 9 between the static friction plates 14.
The utility model discloses a theory of operation: the utility model discloses the splining of revolving stage is through servo motor self stopping under normal condition, need not brake. The braking device only brakes under the condition that the rotary table stops rotating to prevent the rotary table from rotating. When the rotary table is in a braking state, pressure oil pushes the PUI-shaped sealing ring 6 equivalent to a piston through the pressure oil inlet 5 to press the static friction plates 14 to generate elastic deformation, and the front ends of the two static friction plates 14 are deformed due to pressure so as to simultaneously clamp and prop against the large-diameter side of the dynamic friction plate 13, so that the braking process is realized. The material of the static friction plate 14 can be 65Mn spring steel, and the deformation quantity is small, so that the restorability is good. Thereby ensuring the braking time and the running stability. When the rotary table needs to rotate, pressure is relieved through the pressure oil outlet 11, the PUI-shaped sealing ring 6 equivalent to the piston retracts, the static friction plate 14 leaves the dynamic friction plate 13 under the action of self elasticity, the rotor 9 of the rotary table and the dynamic friction plate 13 of the rotary table restore to a certain gap, and the rotary table can normally rotate at the moment.
Move the friction disc and set up in the clearance between two static friction discs, move the friction disc and for the combination of multi-disc formula circular arc ring structure for satisfying the big latus rectum requirement of revolving stage. The friction contact surface of the dynamic friction plate is provided with cooling air holes 17, and two sides of the friction contact surface of the dynamic friction plate are in contact with the two static friction plates. Through the mode, the utility model has the advantages that the structure is simple, the assembly is easy, and simultaneously, when the movable friction plate is subjected to large torque, the movable friction plate and the static friction plate can keep better laminating rate, and the axial impact received by the rotary table rotor is reduced, so that the service life and the reliability of the brake structure are improved; and the friction resistance of the friction contact surface is increased during braking, and the braking torque and the braking stability are improved.
Claims (4)
1. A reliable large-diameter rotary table end face brake structure comprises a rotary table box body, a connecting disc, a movable pressing plate, an adjusting pad, a movable friction plate and a rotary table rotor, and is characterized in that the end face of the rotary table box body is fixedly connected with the connecting disc, one side end face of the connecting disc is fixedly connected with a rear cover, and one side end face of the connecting disc is fixedly connected with the pressing plate; the connecting disc and the rear cover are sealed through an O-shaped sealing ring;
the rear cover is also provided with a pressure oil inlet and a pressure oil outlet, and the rear end face of the rear cover is also provided with a PUI-shaped sealing ring; a static friction plate and a spacer are also fixedly connected between the connecting disc and the pressing plate through screws;
the dynamic pressure plate is used for fixedly connecting the adjusting pad and the dynamic friction plate to the rear end face of the rotary table rotor through screws, and a gap is formed between the dynamic friction plate and the static friction plate.
2. The reliable large-drift-diameter turntable end face brake structure as claimed in claim 1, wherein the dynamic friction plate is of a thin-wall circular ring structure.
3. The reliable large-drift-diameter turntable end face brake structure as claimed in claim 2, wherein the thin-wall circular ring structure is a combination of multi-piece circular arc ring structures.
4. The reliable end face brake structure of the large-drift-diameter turntable according to claim 1, wherein the end face of the dynamic friction plate is further provided with air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120165991.4U CN214603102U (en) | 2021-01-21 | 2021-01-21 | Reliable large-drift-diameter rotary table end face brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120165991.4U CN214603102U (en) | 2021-01-21 | 2021-01-21 | Reliable large-drift-diameter rotary table end face brake structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214603102U true CN214603102U (en) | 2021-11-05 |
Family
ID=78437490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120165991.4U Active CN214603102U (en) | 2021-01-21 | 2021-01-21 | Reliable large-drift-diameter rotary table end face brake structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214603102U (en) |
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2021
- 2021-01-21 CN CN202120165991.4U patent/CN214603102U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 710000 No. 16, Shanglinyuan Third Road, high tech Zone, Xi'an, Shaanxi Patentee after: Shaanxi nobet Automation Technology Co.,Ltd. Address before: No.70, Jinye 1st Road, high tech Zone, Xi'an, Shaanxi 710000 Patentee before: SHAANXI OBOTR AUTOMATION TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |