CN217122562U - Rotating shaft positioning and locking device - Google Patents
Rotating shaft positioning and locking device Download PDFInfo
- Publication number
- CN217122562U CN217122562U CN202221136941.4U CN202221136941U CN217122562U CN 217122562 U CN217122562 U CN 217122562U CN 202221136941 U CN202221136941 U CN 202221136941U CN 217122562 U CN217122562 U CN 217122562U
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- fixed
- conical
- sliding piston
- ring
- supporting seat
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Abstract
The utility model relates to a rotation axis location locking device aims at providing a simple structure, does not have reverse clearance's rotation axis location locking device, can obtain great locking force in limited space, effective improve equipment's positioning accuracy and precision retentivity. The rotary conical ring is connected to a rotating shaft through a flange; the fixed gland is connected with the fixed supporting seat, the conical sliding piston and the rotary conical ring are coaxially arranged and are positioned between the fixed gland and the fixed supporting seat and can axially reciprocate; the outer conical surface of the conical sliding piston can be matched with the inner conical surface of the rotary conical ring; a first cavity is formed between the bottom of the conical sliding piston and the fixed supporting seat, and a second cavity is formed between the top of the conical sliding piston and the fixed supporting seat as well as the fixed gland; an elastic deformation ring is arranged in the second chamber, one end of the elastic deformation ring is fixed on the fixed pressure cover, and the other end of the elastic deformation ring is fixed on the conical sliding piston.
Description
Technical Field
The utility model belongs to the mechanical equipment field, in particular to rotation axis location locking device.
Background
After the rotation of the rotating shaft equipment such as a numerical control turntable, a tool magazine and the like, the accuracy of the position of the rotating shaft needs to be maintained, and particularly after a large external force is applied, the relative motion cannot be generated, so that the rotating shaft needs to be positioned and locked. The existing positioning and locking of the rotating shaft are mostly realized by a driving system and a traditional positioning and clamping mechanism, the mode is generally complex in structure, large locking force is difficult to realize in a limited space, a reverse gap is easy to generate due to structural limitation, especially, the reverse gap is gradually enlarged along with long-time running abrasion, the positioning precision of the rotating shaft is seriously influenced, and the requirements on the increasingly improved machining precision of workpieces and the precision retentivity of equipment cannot be met.
Disclosure of Invention
An object of the utility model is to overcome prior art not enough, provide a simple structure, no reverse clearance's rotation axis location locking device can obtain great locking force in limited space, and positioning accuracy is high, can effectively improve equipment's precision retentivity.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a kind of rotating shaft positions the locking device, including rotating the conical ring, fixed support seat, fixed gland and conical sliding piston, the rotating conical ring couples to rotating shaft through the flange, can rotate with the rotating shaft together; the fixed gland is connected with the fixed supporting seat, the conical sliding piston and the rotary conical ring are coaxially arranged and are positioned between the fixed gland and the fixed supporting seat, and the conical sliding piston can axially reciprocate between the fixed gland and the fixed supporting seat; the outer conical surface of the conical sliding piston can be matched with the inner conical surface of the rotary conical ring; a first cavity is formed between the bottom of the conical sliding piston and the fixed supporting seat, and a second cavity is formed between the top of the conical sliding piston and the fixed supporting seat as well as the fixed gland; an elastic deformation ring is arranged in the second chamber, one end of the elastic deformation ring is fixed on the fixed pressure cover, and the other end of the elastic deformation ring is fixed on the conical sliding piston.
According to the rotating shaft positioning and locking device, a plurality of springs are uniformly arranged in the first cavity along the circumferential direction, one ends of the springs are supported on the fixed supporting seat, and the other ends of the springs are supported on the conical sliding piston.
In the rotating shaft positioning and locking device, the spring presses the conical sliding piston on the rotating conical ring.
According to the rotating shaft positioning and locking device, the fixed supporting seat is provided with the first passage communicated with the first cavity and the second passage communicated with the second cavity respectively, and compressed gas or hydraulic oil can be introduced into the first cavity and the second cavity respectively through the external gas supply device or the liquid supply device.
Above-mentioned rotation axis location locking device, be provided with the sealing washer respectively between toper slip piston and the fixed bolster and between toper slip piston and the fixed gland with first cavity and second cavity seal.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a fixed elastic deformation ring between toper sliding piston and fixed gland can effectively eliminate reverse clearance. The double power of the spring and the air pressure or the hydraulic pressure is utilized, and the wedge-shaped locking mechanism is combined, so that the wedge-shaped locking mechanism has a pressurizing and locking function, can obtain larger locking torque, and has small occupied space and compact structure; meanwhile, the locking at any angle can be realized, the passive safety locking is realized, the safety and the reliability are higher, and the precision loss is avoided after the long-term application.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model discloses a rotation axis location locking device, including fixed support seat 1, toper slip piston 2, elastic deformation ring 3, fixed gland 4, rotatory conical ring 5, flange 6, rotation axis 7 and spring 8.
The rotating shaft 7 is supported by a bearing to rotate, the fixed support base 1 is fixed on a fixed shaft sleeve (not shown) outside the rotating shaft 7, and the fixed gland 4 is fixedly connected with the fixed support base 1 to form a fixed part. The flange 6 is fixed at the shaft end of the rotating shaft 7, the rotating conical ring 5 is installed on the flange 6 and sleeved outside a fixed part formed by the fixed gland 4 and the fixed support seat 1, and the rotating conical ring 5 rotates along with the rotating shaft 7. The inner wall of the rotary conical ring 5 is provided with a conical surface structure. The conical sliding piston 2 is coaxially arranged with the rotary conical ring 5, is embedded between the fixed gland 4 and the fixed supporting seat 1, and can axially reciprocate between the fixed gland 4 and the fixed supporting seat 1. The outer conical surface of the conical sliding piston 2 can be matched with the inner conical surface of the rotary conical ring 5.
A first cavity 11 is formed between the bottom of the conical sliding piston 2 and the fixed support seat 1, springs 8 are uniformly arranged in the first cavity 11 along the circumferential direction, one end of each spring 8 is supported on the fixed support seat 1, and the other end of each spring 8 is supported on the conical sliding piston 2. A second chamber 12 is formed between the top of the conical sliding piston 2 and the fixed supporting seat 1 and the fixed gland 4, an elastic deformation ring 3 is arranged in the second chamber 12, one end of the elastic deformation ring 3 is fixed on the fixed gland 4, and the other end of the elastic deformation ring is fixed on the conical sliding piston 2. The fixed support seat 1 is further provided with a first passage (not shown) communicated with the first chamber 11 and a second passage (not shown) communicated with the second chamber 12, and compressed gas or hydraulic oil can be respectively communicated with the first chamber 11 and the second chamber 12 through an external gas supply device or a liquid supply device. In order to ensure the sufficient sealing of the first chamber 11 and the second chamber 12, sealing rings are respectively arranged between the conical sliding piston 2 and the fixed supporting seat 1 and between the conical sliding piston 2 and the fixed gland 4.
The utility model discloses when discharge compressed gas or hydraulic oil in second cavity 12, toper sliding piston 2 moves to the top under the effect of the elasticity of spring 8 and the elastic deformation power of elastic deformation ring 3, resume former shape to elastic deformation ring 3, and overcome elastic deformation ring 3's reverse elastic deformation power continuation motion once more, force toper sliding piston 2 and rotatory conical ring 5 contact surface and contact, produce certain packing force, under the effect of the clamping force, locking rotating conical ring 5, flange 6 and rotation axis 7. If the rotating force is large, compressed gas or hydraulic oil with certain pressure can be filled into the first chamber 11, and the compressed gas or hydraulic oil and the spring force generated by the spring 8 act together to generate larger axial pressure, so that the locking force between the conical sliding piston 2 and the rotating conical ring 5 is increased.
If the locking is to be cancelled, the compressed gas or hydraulic oil in the first chamber 11 can be discharged, and meanwhile, the compressed gas or hydraulic oil is introduced into the second chamber 12, so that the conical sliding piston 2 overcomes the pressure of the spring 8 and the elastic deformation force of the elastic deformation ring 3 to move towards the bottom, and is separated from the rotary conical ring 5, and the rotary conical ring 5, the flange 6 and the rotating shaft 7 can continue to rotate.
The utility model discloses a toper slip piston and the conical surface cooperation of rotatory conical ring 5 both can increase the packing force of contact surface, also can the auto-lock. And because the existence of elastic deformation ring 3, produce elastic deformation all the time in the motion process of toper sliding piston 2, stopped the reverse clearance problem that appears when toper sliding piston 2 motion commutates.
Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (5)
1. A kind of rotating shaft positions the locking device, including rotating the conical ring, fixed support seat, fixed gland and conical sliding piston, the rotating conical ring couples to rotating shaft through the flange, can rotate with the rotating shaft together; the fixed gland is connected with the fixed supporting seat, the conical sliding piston and the rotary conical ring are coaxially arranged and are positioned between the fixed gland and the fixed supporting seat, and the conical sliding piston can axially reciprocate between the fixed gland and the fixed supporting seat; the outer conical surface of the conical sliding piston can be matched with the inner conical surface of the rotary conical ring; a first cavity is formed between the bottom of the conical sliding piston and the fixed supporting seat, and a second cavity is formed between the top of the conical sliding piston and the fixed supporting seat as well as the fixed gland; the device is characterized in that an elastic deformation ring is arranged in the second chamber, one end of the elastic deformation ring is fixed on the fixed pressure cover, and the other end of the elastic deformation ring is fixed on the conical sliding piston.
2. The device for positioning and locking the rotating shaft according to claim 1, wherein a plurality of springs are uniformly arranged in the first chamber along the circumferential direction, one end of each spring is supported on the fixed support seat, and the other end of each spring is supported on the conical sliding piston.
3. The device of claim 2, wherein the spring presses the tapered sliding piston against the rotating tapered ring.
4. The device for positioning and locking a rotating shaft according to claim 1, 2 or 3, wherein the fixed support base is provided with a first passage leading to the first chamber and a second passage leading to the second chamber, respectively, and compressed gas or hydraulic oil can be led into the first chamber and the second chamber respectively through an external gas supply device or a liquid supply device.
5. The device for locking and positioning a rotating shaft according to claim 4, wherein a sealing ring is respectively arranged between the conical sliding piston and the fixed supporting seat and between the conical sliding piston and the fixed gland to seal the first chamber and the second chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221136941.4U CN217122562U (en) | 2022-05-13 | 2022-05-13 | Rotating shaft positioning and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221136941.4U CN217122562U (en) | 2022-05-13 | 2022-05-13 | Rotating shaft positioning and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217122562U true CN217122562U (en) | 2022-08-05 |
Family
ID=82615842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221136941.4U Active CN217122562U (en) | 2022-05-13 | 2022-05-13 | Rotating shaft positioning and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217122562U (en) |
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2022
- 2022-05-13 CN CN202221136941.4U patent/CN217122562U/en active Active
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