CN216461832U - Built-in limiting device of collet chuck - Google Patents
Built-in limiting device of collet chuck Download PDFInfo
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- CN216461832U CN216461832U CN202122363341.3U CN202122363341U CN216461832U CN 216461832 U CN216461832 U CN 216461832U CN 202122363341 U CN202122363341 U CN 202122363341U CN 216461832 U CN216461832 U CN 216461832U
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- expansion sleeve
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Abstract
The utility model discloses a built-in limiting device of a spring chuck, which comprises a puller screw, a frustum puller ring, an expansion sleeve and a limiting rod, wherein the integral step cylinder structure is formed by a large cylinder and a small cylinder of the expansion sleeve, a penetrating threaded through hole is arranged at the center of the expansion sleeve, a frustum hole communicated with the threaded through hole is formed in the large cylinder, a group of expansion joints are uniformly formed in the side wall of the large cylinder, the frustum puller ring with the same taper as the frustum hole is arranged in the frustum hole, the puller screw penetrates through the frustum puller ring and is in threaded connection with the threaded through hole, and the other end of the threaded through hole is in threaded connection with the limiting rod. The utility model can be arranged in the spring chuck and fixed in the spring chuck through the expansion sleeve, and when the spring chuck is used for clamping parts, the parts can be axially limited through the limiting rod, so that the problem that certain shaft parts without outer end surfaces can not be processed on a numerical control lathe is solved.
Description
Technical Field
The utility model relates to a built-in limiting device of a spring chuck, and belongs to the technical field of machining.
Background
The clamping device has the advantages of high clamping speed, short clamp replacing time, high clamping precision, high concentricity during turning and the like, and is widely applied to a numerical control lathe. However, when some shaft parts are machined on the numerical control lathe, after the outer circles of the shaft parts are clamped by the spring chucks, no outer leaning end surface exists, so that the parts cannot be axially positioned, and the turning of products cannot be realized.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the built-in limiting device of the spring chuck, which has the advantages of reasonable structure, high reliability, adjustability and strong universality, so as to solve the problem that certain shaft parts without outer end faces cannot be machined on a numerical control lathe.
The utility model is formed as follows: the utility model provides a collet chuck's built-in stop device, includes top tight screw, frustum top tighrening ring, the cover and gag lever post expand, the integral type step cylinder structure that big cylinder and the little cylinder of cover of expanding formed is provided with the screw thread through-hole that runs through at the center of the cover that expands, set up the frustum hole with screw thread through-hole intercommunication in big cylinder, seted up a set of expansion joint uniformly on the lateral wall of big cylinder, be provided with the frustum top tighrening ring unanimous with frustum hole tapering in the frustum hole, top tight screw pass behind the frustum top tighrening ring with screw thread through-hole threaded connection, there is the gag lever post at the other end threaded connection of screw thread through-hole.
Furthermore, the outer wall of the expansion sleeve and the joint of the large cylinder and the small cylinder are provided with annular deformation grooves, and the expansion joint extends to the middle parts of the annular deformation grooves.
Further, the limiting rod is connected with a locknut in a threaded mode.
Furthermore, flat surfaces are symmetrically processed on the outer wall of the limiting rod and the outer wall of the small cylinder of the expansion sleeve.
Due to the adoption of the technical scheme, the utility model has the advantages that: the utility model can be arranged in the spring chuck and fixed in the spring chuck through the expansion sleeve, and when the spring chuck is used for clamping parts, the parts can be axially limited through the limiting rod, so that the problem that certain shaft parts without outer end surfaces can not be processed on a numerical control lathe is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an expansion sleeve;
FIG. 3 is a schematic view of the structure of the present invention in use:
FIG. 4 is an exploded view of FIG. 3;
fig. 5 is a schematic structural view of the stopper rod.
The labels in the figures are: 1-a tightening screw, 2-a tightening ring, 3-an expansion sleeve, 4-a locknut, 5-a limiting rod, 6-a spring chuck, 7-a processed part, 8-an annular deformation groove, 9-a threaded through hole, 10-a frustum hole, 11-an expansion joint and 12-a flat surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
The embodiment of the utility model comprises the following steps: as shown in fig. 1 to 5, a built-in limiting device of a collet chuck comprises a jacking screw 1, a frustum jacking ring 2, an expansion sleeve 3 and a limiting rod 5, wherein the expansion sleeve 3 is of an integral stepped cylindrical structure formed by a large cylinder and a small cylinder, a through threaded through hole 9 is formed in the center of the expansion sleeve 3, a frustum hole 10 communicated with the threaded through hole 9 is formed in the large cylinder, a set of expansion joints 11 are uniformly formed in the side wall of the large cylinder, the frustum jacking ring 2 with the same taper as the frustum hole 10 is arranged in the frustum hole 10, the jacking screw 1 penetrates through the frustum jacking ring 2 and then is in threaded connection with the threaded through hole 9, and the limiting rod 5 is in threaded connection with the other end of the threaded through hole 9.
An annular deformation groove 8 is formed in the outer wall of the expansion sleeve 3 and at the joint of the large cylinder and the small cylinder, and the expansion joint 11 extends to the middle of the annular deformation groove 8; because the middle wall thickness in the annular deformation groove 8 is thin, the expansion sleeve 3 is convenient to expand and deform, and the expansion joint 11 extends to the middle of the annular deformation groove 8 to ensure that the large cylinder of the expansion sleeve 3 has enough deformation.
The stop rod 5 is connected with a locknut 4 through threads, and after the length of the stop rod 5 is adjusted, the locknut 4 can be screwed to fixedly connect the stop rod 5 and the expansion sleeve 3 together.
The outer wall of the limiting rod 5 and the outer wall of the small cylinder of the expansion sleeve 3 are symmetrically provided with flat surfaces 12, and during threaded connection, a wrench is convenient to fix the limiting rod 5 or the expansion sleeve 3.
The working principle of the utility model is as follows:
when the device is used, the whole device is firstly arranged in the spring chuck 6, then the puller screw 1 is rotated, the outer conical surface of the frustum puller ring 2 is attached to the frustum hole 10 of the expansion sleeve 3, the puller screw 1 is continuously rotated until the large cylinder of the expansion sleeve 3 deforms and then supports the inner hole of the spring chuck 6 tightly, and the purpose that the whole device is fixed on the spring chuck 6 is achieved. At the moment, the limiting rod 5 is rotated, the extending length of the limiting rod 5 is adjusted, the purpose of adjusting the axial limiting position is achieved, after the position of the limiting rod 5 is adjusted, the limiting rod 5 is screwed down by the locknut 4, the limiting rod 5 and the expansion sleeve 3 are fixedly connected together, and the limiting rod 5 is prevented from loosening. When the part 7 to be processed is clamped by the spring chuck 6, the outer end of the limiting rod 5 is flush with the end face of the workpiece 7, and the purpose of axial limiting of the part 7 to be processed is achieved. It is worth to be noted that the outer end face of the limiting rod 5 should have a higher flatness requirement and a higher perpendicularity requirement with the center of the part 7 to be machined.
Claims (4)
1. The utility model provides a collet chuck's built-in stop device, includes top tight screw (1), frustum top tightring (2), bloated cover (3) and gag lever post (5), its characterized in that: expand cover (3) and be the integral type step cylinder structure that forms by big cylinder and small circle cylinder group, be provided with screw thread through-hole (9) that run through at the center of expanding cover (3), set up frustum hole (10) with screw thread through-hole (9) intercommunication in big cylinder, a set of expansion joint (11) have evenly been seted up on the lateral wall of big cylinder, be provided with in frustum hole (10) with frustum top tighrening (2) that frustum hole (10) tapering is unanimous, top tighrening screw (1) pass behind frustum top tighrening (2) with screw thread through-hole (9) threaded connection, there is gag lever post (5) at the other end threaded connection of screw thread through-hole (9).
2. The collet chuck built-in stop device according to claim 1, wherein: the expansion joint is characterized in that an annular deformation groove (8) is formed in the outer wall of the expansion sleeve (3) and at the joint of the large cylinder and the small cylinder, and the expansion joint (11) extends to the middle of the annular deformation groove (8).
3. The collet chuck built-in stop device according to claim 1, wherein: the stop rod (5) is connected with a locknut (4) in a threaded manner.
4. The collet chuck built-in stop device according to claim 1, wherein: and flat surfaces (12) are symmetrically processed on the outer wall of the limiting rod (5) and the outer wall of the small cylinder of the expansion sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122363341.3U CN216461832U (en) | 2021-09-28 | 2021-09-28 | Built-in limiting device of collet chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122363341.3U CN216461832U (en) | 2021-09-28 | 2021-09-28 | Built-in limiting device of collet chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216461832U true CN216461832U (en) | 2022-05-10 |
Family
ID=81437973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122363341.3U Active CN216461832U (en) | 2021-09-28 | 2021-09-28 | Built-in limiting device of collet chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216461832U (en) |
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2021
- 2021-09-28 CN CN202122363341.3U patent/CN216461832U/en active Active
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