CN214640358U - Axial adjusting device for assisting three-jaw chuck in clamping - Google Patents
Axial adjusting device for assisting three-jaw chuck in clamping Download PDFInfo
- Publication number
- CN214640358U CN214640358U CN202023195181.8U CN202023195181U CN214640358U CN 214640358 U CN214640358 U CN 214640358U CN 202023195181 U CN202023195181 U CN 202023195181U CN 214640358 U CN214640358 U CN 214640358U
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- screw
- support body
- positioning support
- small
- diameter
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- Expired - Fee Related
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- 230000004323 axial length Effects 0.000 abstract description 7
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses an axial adjusting device for assisting the clamping of a three-jaw chuck, which comprises a screw rod, a three-fork body, a locking nut and a positioning support body; the Y-shaped body is in threaded connection with the large-diameter threaded section of the screw through a connecting ring, and is axially positioned on the screw through a large nut in threaded connection with the large-diameter threaded section of the screw; the closed end of the positioning support body is downwards sleeved on the small-diameter thread section of the screw rod, and the positioning support body is fixed with the screw rod through a small nut. The utility model discloses an axial adjusting device can solve the centre gripping problem that three-jaw chuck is less than the small cylinder part of jack catch length to axial length, and but axial length quick adjustment.
Description
Technical Field
The utility model relates to an axial adjusting device that supplementary three-jaw chuck presss from both sides tightly belongs to machining process technical field.
Background
When the inner shape and the outer shape of a part are processed, the part is generally clamped and positioned by tools such as a three-jaw chuck and the like. For a certain fuse product, a plurality of small cylinder parts with different lengths and diameters need to be subjected to finish machining on the end parts, and when a three-jaw chuck is used for clamping and positioning, the three jaws are radially folded to clamp the rear end of the small cylinder. For a small cylindrical part with the axial length smaller than the length of the clamping jaws, when the small cylindrical part is clamped and positioned, in order to leak the processing part at the front end of the small cylindrical part, the three clamping jaws can only clamp the part through partial clamping surfaces at the front side, and the end part of the rear end of the clamped part is suspended, so that reliable positioning support cannot be obtained. When the traditional process is used for solving the problem, a proper cushion block is searched to serve as a positioning reference of the part on the three claws in the vertical direction according to the diameter and the clamping length of the part to be processed; the three-jaw size used by each machine tool is not necessarily consistent, each processing is that an operator searches and splices a cushion block with proper height and positioning or customizes a tool, and the preparation for processing is long in time consumption, high in investment and low in efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving when three-jaw chuck presss from both sides tight small cylinder part, need satisfy the location benchmark of part vertical direction through the cushion, increased process time, reduced machining efficiency, for this, provide an axial adjusting device that supplementary three-jaw chuck pressed from both sides tightly.
The utility model aims at realizing through the following technical scheme:
the utility model relates to an axial adjusting device for assisting the clamping of a three-jaw chuck, which comprises a screw rod, a three-fork body, a locking nut and a positioning support body;
the rear section of the screw is a large-diameter threaded section, and the front section of the screw is a small-diameter threaded section;
the middle part of the Y-shaped body is provided with a connecting ring with a threaded hole, and the threaded hole of the connecting ring is matched with the thread of the large-diameter threaded section of the screw; three positioning plates which are uniformly distributed on the circumference are fixed on the side wall of the connecting ring, the lower end surfaces of the three positioning plates are positioned on the same plane, and the plane is perpendicular to the axis of the threaded hole of the connecting ring;
the positioning support body is a cylindrical part with an opening at one end, and a through hole matched with the small-diameter threaded section of the screw is formed in the center of the closed end of the positioning support body;
the Y-shaped body is in threaded connection with the large-diameter threaded section of the screw through a connecting ring, and is axially positioned on the screw through a large nut in threaded connection with the large-diameter threaded section of the screw; the closed end of the positioning support body is downwards sleeved on the small-diameter thread section of the screw rod, and the positioning support body is fixed with the screw rod through a small nut.
When the three-jaw chuck is used for clamping a small cylinder part with the axial length smaller than the length of the jaws, the axial adjusting device is firstly installed at the rear ends of the inner sides of the three jaws, so that the rear end face of a trident body in the axial adjusting device is attached to the front side disc face of the three-jaw chuck, and the front end face of the positioning support body is ensured to be vertical to the clamping axis of the three-jaw chuck; then, mounting the small cylinder part to be processed at the front ends of the inner sides of the three clamping jaws, so that the rear end face of the small cylinder part to be processed is tightly attached to the front end face of the positioning support body in the axial adjusting device; the axial position of the triquetrum on the large-diameter thread section of the screw is adjusted, so that the distance between the front end surface of the positioning support body and the rear end surface of the triquetrum meets the axial clamping position of the small cylinder part to be processed on the three-jaw chuck; and finally, clamping the small cylinder part to be processed through the three clamping jaws of the three-jaw chuck, and then, extending the front end of the small cylinder part to be processed out of the clamping surfaces of the three clamping jaws to finish the processing of the end appearance.
Advantageous effects
The axial adjusting device of the utility model has simple structure, convenient installation and low investment cost; the clamping problem of the three-jaw chuck to the small cylinder part that axial length is less than jack catch length can be solved, and axial length can quick adjustment, and clamping stability is good, and machining efficiency is high, and applicable not unidimensional product centre gripping has higher commonality.
Drawings
FIG. 1 is a schematic view of the assembly of the auxiliary positioning device and the parts of the present invention;
in the figure, 1-positioning the support; 2-small nut; 3-a screw; 4-large nut; 5-trident.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, the axial adjusting device for assisting the clamping of the three-jaw chuck of the present invention comprises a screw rod 3, a Y-shaped body 5, a locking nut 4 and a positioning support body 1;
the rear section of the screw rod 3 is a large-diameter threaded section, and the front section of the screw rod 3 is a small-diameter threaded section;
the middle part of the Y-shaped body 5 is provided with a connecting ring with a threaded hole, and the threaded hole of the connecting ring is matched with the thread of the large-diameter threaded section of the screw rod 3; three positioning plates which are uniformly distributed on the circumference are fixed on the side wall of the connecting ring, the lower end surfaces of the three positioning plates are positioned on the same plane, and the plane is perpendicular to the axis of the threaded hole of the connecting ring;
the positioning support body 1 is a cylindrical part with an opening at one end, and a through hole matched with the small-diameter thread section of the screw rod 3 is formed in the center of the closed end of the positioning support body 1;
the Y-shaped body 5 is in threaded connection with the large-diameter threaded section of the screw rod 3 through a connecting ring, and the Y-shaped body 5 is axially positioned on the screw rod 3 through a large nut 4 in threaded connection with the large-diameter threaded section of the screw rod 3; the closed end of the positioning support body 1 is downwards sleeved on the small-diameter thread section of the screw rod 3, and the positioning support body 1 and the screw rod 3 are fixed through a small nut 2.
When a small cylinder part with the axial length smaller than the length of the clamping jaws is clamped by the three-jaw chuck, the axial adjusting device is firstly installed at the rear ends of the inner sides of the three clamping jaws, so that the rear end face of a trifork body 5 in the axial adjusting device is attached to the front side disc face of the three-jaw chuck, and the front end face of the positioning support body 1 is ensured to be vertical to the clamping axis of the three-jaw chuck; then, mounting the small cylinder part to be processed at the front ends of the inner sides of the three clamping jaws, so that the rear end face of the small cylinder part to be processed is tightly attached to the front end face of the positioning support body 1 in the axial adjusting device; the axial position of the triquetrum body 5 on the large-diameter thread section of the screw rod 3 is adjusted, so that the distance between the front end surface of the positioning support body 1 and the rear end surface of the triquetrum body 5 meets the requirement of the axial clamping position of the small cylinder part to be processed on the three-jaw chuck; and finally, clamping the small cylinder part to be processed through the three clamping jaws of the three-jaw chuck, and then, extending the front end of the small cylinder part to be processed out of the clamping surfaces of the three clamping jaws to finish the processing of the end appearance.
Claims (1)
1. The utility model provides an axial adjusting device that supplementary three-jaw chuck presss from both sides tightly which characterized by: comprises a screw rod, a Y-shaped body, a locking nut and a positioning support body;
the rear section of the screw is a large-diameter threaded section, and the front section of the screw is a small-diameter threaded section;
the middle part of the Y-shaped body is provided with a connecting ring with a threaded hole, and the threaded hole of the connecting ring is matched with the thread of the large-diameter threaded section of the screw; three positioning plates which are uniformly distributed on the circumference are fixed on the side wall of the connecting ring, the lower end surfaces of the three positioning plates are positioned on the same plane, and the plane is perpendicular to the axis of the threaded hole of the connecting ring;
the positioning support body is a cylindrical part with an opening at one end, and a through hole matched with the small-diameter threaded section of the screw is formed in the center of the closed end of the positioning support body;
the Y-shaped body is in threaded connection with the large-diameter threaded section of the screw through a connecting ring, and is axially positioned on the screw through a large nut in threaded connection with the large-diameter threaded section of the screw; the closed end of the positioning support body is downwards sleeved on the small-diameter thread section of the screw rod, and the positioning support body is fixed with the screw rod through a small nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195181.8U CN214640358U (en) | 2020-12-25 | 2020-12-25 | Axial adjusting device for assisting three-jaw chuck in clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195181.8U CN214640358U (en) | 2020-12-25 | 2020-12-25 | Axial adjusting device for assisting three-jaw chuck in clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214640358U true CN214640358U (en) | 2021-11-09 |
Family
ID=78503090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023195181.8U Expired - Fee Related CN214640358U (en) | 2020-12-25 | 2020-12-25 | Axial adjusting device for assisting three-jaw chuck in clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214640358U (en) |
-
2020
- 2020-12-25 CN CN202023195181.8U patent/CN214640358U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |