CN207464734U - Circular arc jack - Google Patents
Circular arc jack Download PDFInfo
- Publication number
- CN207464734U CN207464734U CN201721403004.XU CN201721403004U CN207464734U CN 207464734 U CN207464734 U CN 207464734U CN 201721403004 U CN201721403004 U CN 201721403004U CN 207464734 U CN207464734 U CN 207464734U
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- Prior art keywords
- head
- pedestal
- raise
- workpiece
- circular arc
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Abstract
The utility model belongs to mechanical processing technical field of auxiliary equipment, disclose a kind of circular arc jack, it raises the head including top and pedestal, the top, which is raise the head, is welded on the top of cylindrical screw bar, the middle part of threaded rod is equipped with nut, the lower part of threaded rod is plugged in the through-hole of base center, for clearance fit between threaded rod and through-hole, push up the top surface raise the head or pedestal bottom surface at least one be arc surface.The utility model adjusts the spacing raise the head with pedestal on top by nut so that and it pushes up the bottom surface of the top surface raise the head or pedestal and the arc surface of workpiece to be processed is closely adjacent to, reach reliable grip and the accurate positionin of workpiece, it is easy to use, improve the processing quality of product.The bottom shape for pushing up the top surface raise the head or pedestal is changed according to actual condition, suitable for the processing of all kinds of circular arc works.
Description
Technical field
The utility model belongs to mechanical processing technical field of auxiliary equipment, specifically a kind of circular arc jack, is applicable in
It is clamped in the positioning of circular arc class part.
Background technology
When gear shaper processes operation for the gear-shaping of gear shaft, it is outer that the relationship of discovery workpiece and tailstock tool, which is workpiece,
Circle, inner chamber of machine tool spindle is hole, and need to position is that workpiece is among hole, and the gap between them is determined by the diameter of workpiece
It is fixed, workpiece is reached in narrow space during the motion and is still synchronized under the action of cutting force with machine tool chief axis and is transported
It is dynamic, gear-shaping demand could be met.The positioning clamping mode of workpiece is fixed using 4 screw rods of circumference uniform distribution in machine tool chief axis, spiral shell
The outer wall of bar top and gear shaft is point contact, clamps shortcoming to the positioning of workpiece, gear shaft is caused to be positioned loosely in processing
Gu processing quality is unstable, rejection rate is higher.
Utility model content
The purpose of this utility model is to provide a kind of circular arc jack, is clamped for the positioning of circular arc works, to solve to justify
Arc workpiece positions illusive problem in Machining operations.
In order to achieve the above objectives, technical solution adopted in the utility model is：
A kind of circular arc jack, it raises the head including top and pedestal, and the top, which is raise the head, is welded on the top of cylindrical screw bar,
The middle part of threaded rod is equipped with nut, and the lower part of threaded rod is plugged in the through-hole of base center, between being between threaded rod and through-hole
Gap coordinates, push up the top surface raise the head or pedestal bottom surface at least one be arc surface.
Preferably, the top surface raise the head and the bottom surface of pedestal of pushing up is the circular arc being adapted with the radian of workpiece to be processed
Face.
Preferably, the top surface raise the head of pushing up is the arc surface being adapted with the radian of workpiece to be processed, the bottom surface of pedestal
For plane.
Preferably, the bottom surface of the pedestal is the arc surface being adapted with the radian of workpiece to be processed, pushes up the top surface raise the head
For plane.
It is in the processing operation of circular arc works, several the utility model are symmetrically placed in workpiece to be processed and machine tool chief axis
Between, rotating nuts adjust the spacing raise the head with pedestal of top, make the bottom surface of top surface, pedestal that top raises the head respectively with the circle of workpiece
Cambered surface, machine tool chief axis are inconsistent, by the firm clamping of workpiece to be processed and accurate positionin, axial line and the lathe master of workpiece to be processed
The center line of axis coincides, and opens lathe, carries out the processing of workpiece.
The beneficial effects of the utility model are：
（1）Pushed up in the utility model the top surface raise the head or pedestal bottom surface at least one be arc surface, pass through nut
Adjust the spacing that top is raise the head with pedestal so that push up the bottom surface of the top surface raise the head or pedestal and the arc surface of workpiece to be processed closely pastes
Tightly, reach reliable grip and the accurate positionin of workpiece, it is easy to use, improve the processing quality of product；
（2）Clearance fit between threaded rod and base plate through holes, can adjustment top be raise the head and bottom in due course in job engineering
The relative position of seat so that top is raise the head to be close to pedestal with corresponding arc surface completely, enhances the reliability of workpiece positioning；
（3）The bottom surface for pushing up the top surface raise the head or pedestal can be unit cambered surface or double-arc surface, according to practical
Operating mode is changed, suitable for the processing of all kinds of circular arc works.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the utility model use state diagram；
In figure：1st, threaded rod, 2, top raise the head, 3, nut, 4, pedestal, 5, through-hole.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of circular arc jack as shown in Figure 1, it includes top and raises the head 2 and pedestal 4, and top, which is raise the head, 2 is welded on cylindric spiral shell
The top of rasp bar 1, the middle part of threaded rod 1 are equipped with nut 3, and the lower part of threaded rod 1 is plugged in the through-hole 5 at 4 center of pedestal, screw thread
It is clearance fit between bar 1 and through-hole 5, pushes up 2 top surface of raising the head, the bottom surface of pedestal 4 is mutually to be fitted with the radian of workpiece to be processed
The arc surface matched.
The bottom surface for pushing up the top surface raise the head or pedestal can be unit cambered surface or double-arc surface, according to practical work
Condition is changed, suitable for the processing of all kinds of circular arc works.
The bottom surface that the top surface raise the head or pedestal are pushed up in the utility model is arc surface, and adjusting top by nut raises the head and bottom
The spacing of seat so that push up the bottom surface of the top surface raise the head or pedestal and the arc surface of workpiece to be processed is closely adjacent to, reach workpiece
Reliable grip and accurate positionin, it is easy to use, improve the processing quality of product.
Claims (4)
1. a kind of circular arc jack, it includes top and raises the head（2）And pedestal（4）, it is characterised in that：It raises the head on the top（2）It is welded on
Cylindrical screw bar（1）Top, threaded rod（1）Middle part be equipped with nut（3）, threaded rod（1）Lower part be plugged on pedestal（4）
The through-hole at center（5）In, threaded rod（1）With through-hole（5）Between for clearance fit, top is raise the head（2）Top surface or pedestal（4）'s
Bottom surface at least one be arc surface.
2. circular arc jack according to claim 1, it is characterised in that：It raises the head on the top（2）Top surface and pedestal（4）'s
Bottom surface is the arc surface being adapted with the radian of workpiece to be processed.
3. circular arc jack according to claim 1, it is characterised in that：It raises the head on the top（2）Top surface be with it is to be processed
The arc surface that the radian of workpiece is adapted, pedestal（4）Bottom surface be plane.
4. circular arc jack according to claim 1, it is characterised in that：The pedestal（4）Bottom surface be and work to be processed
The arc surface that the radian of part is adapted, top are raise the head（2）Top surface be plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721403004.XU CN207464734U (en) | 2017-10-27 | 2017-10-27 | Circular arc jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721403004.XU CN207464734U (en) | 2017-10-27 | 2017-10-27 | Circular arc jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207464734U true CN207464734U (en) | 2018-06-08 |
Family
ID=62265375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721403004.XU Active CN207464734U (en) | 2017-10-27 | 2017-10-27 | Circular arc jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207464734U (en) |
-
2017
- 2017-10-27 CN CN201721403004.XU patent/CN207464734U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |