CN213163124U - Finish turning positioning device suitable for straight gear and helical gear - Google Patents
Finish turning positioning device suitable for straight gear and helical gear Download PDFInfo
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- CN213163124U CN213163124U CN202022116469.5U CN202022116469U CN213163124U CN 213163124 U CN213163124 U CN 213163124U CN 202022116469 U CN202022116469 U CN 202022116469U CN 213163124 U CN213163124 U CN 213163124U
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Abstract
The utility model discloses a finish turning positioner suitable for straight-teeth gear and helical gear, including the location jack catch, the quantity of location jack catch is three, and three location jack catch circumference sets up, be provided with positioning element in the through-hole of location jack catch, the last ring channel that is provided with of positioning element, positioning element's one end is provided with convex locating surface, and positioning element can be rotatory around the hole axis of location jack catch, and location jack catch threaded connection has holding screw, and this finish turning positioner suitable for straight-teeth gear and helical gear passes through positioning element's rotation alignment gear and helical gear chucking location, improves the suitability that uses, and holding screw passes the location jack catch and pushes up tightly with positioning element's ring channel, can prevent that positioning element from deviating from, improves the reliability of using.
Description
Technical Field
The utility model relates to the technical field of machining, specifically be a finish turning positioner suitable for straight-teeth gear and helical gear.
Background
Gear transmission is one of the important mechanical transmission forms, and the manufacturing precision and the strength, the wear resistance and the like of the gear transmission directly influence the operation and the service life of a machine. The heat treatment is needed in the processing process, and the deformation generated by the heat treatment damages the original processing precision, particularly the coaxiality error of the pitch circle and the central hole and the deformation error of the tooth surface, and can bring about extremely adverse influence on gear transmission. After heat treatment, the pitch circle is used for positioning, an inner hole is finely turned on a lathe, and then subsequent processing is carried out by positioning the inner hole, so as to ensure the coaxiality of the pitch circle and the central hole.
In the prior art, the design principle of the pitch circle clamp is roughly divided into three types: (1) the simple pitch circle clamp mainly utilizes the matching mode of a universal four-jaw chuck, a universal three-jaw chuck and a universal rolling pin; (2) the method is realized by matching curved surface self-locking with a positioning steel ball; (3) the mode of effective positioning is realized by matching the elastic sleeve with the steel ball or the rolling needle, but the positioning of the clamp can only clamp and position the straight gear, and the corresponding clamp needs to be replaced when the helical gear is machined, so that the working efficiency is reduced, and the production cost is increased.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome current defect, provide a finish turning positioner suitable for straight-teeth gear and helical gear, can fix a position tight with straight-teeth gear and helical gear, remove the process of changing anchor clamps from, practice thrift manufacturing cost, improve production efficiency, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a finish turning positioner suitable for straight-teeth gear and helical gear, includes the location jack catch, be provided with positioning element in the through-hole of location jack catch, positioning element can be rotatory around the hole axis of location jack catch, and location jack catch threaded connection has holding screw.
As a preferred technical scheme of the utility model, the quantity of location jack catch is three, and three location jack catch circumference sets up.
As an optimized technical scheme of the utility model, the one end of positioning element is provided with convex location face.
As a preferred technical solution of the present invention, the positioning element is provided with an annular groove.
As a preferred technical scheme of the utility model, the top of holding screw and positioning element's ring channel swing joint.
Compared with the prior art, the beneficial effects of the utility model are that: this finish turning positioner suitable for spur gear and helical gear improves the suitability of using through the rotation of locating element to the spur gear and helical gear chucking location, and holding screw passes the location jack catch and pushes up tightly with the ring channel of locating element, can prevent that the locating element from deviating from, improves the reliability of using.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a sectional view of the structure of the present invention;
FIG. 3 is a front view of the present invention;
fig. 4 is a schematic structural diagram of the positioning element.
In the figure: 1 positioning claw, 2 positioning element and 3 set screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a finish turning positioning device suitable for straight gears and helical gears comprises three positioning clamping jaws 1, wherein the three positioning clamping jaws 1 are arranged on the circumference, the positioning clamping jaws 1 are arranged corresponding to a three-jaw chuck of a numerical control lathe, and the circle center of a geometric circle where the meshing point of the positioning clamping jaws and a gear to be processed is positioned is superposed with the circle center of a pitch circle of the gear to be processed; the positioning element 2 is arranged in a through hole of the positioning clamping jaw 1, one end of the positioning element 2 is provided with an arc-shaped positioning surface, an arc diameter ruler of the arc-shaped positioning surface is arranged corresponding to the modulus of a processed gear, the positioning element 2 can rotate around the axis of a hole of the positioning clamping jaw 1 so as to realize the tooth-shaped matching with different helix angles, an annular groove is arranged on the positioning element 2, the positioning clamping jaw 1 is in threaded connection with a set screw 3, the top end of the set screw 3 is movably connected with the annular groove of the positioning element 2, and the top end of the set screw 3 is screwed into the annular groove of the positioning element 2, so that the positioning element 2 can be prevented from being disengaged.
When in use: the positioning clamping jaw 1 is installed on a hydraulic chuck of a numerical control lathe through a square positioning key and a screw, radial expansion of the positioning clamping jaw 1 is controlled through the hydraulic chuck, a circular arc positioning surface of the positioning element 2 is meshed and fixed with a straight gear, meanwhile, the set screw 3 tightly pushes an annular groove of the positioning element 2, when the helical gear is machined, the positioning element 2 is rotated, the positioning element 2 is matched with the angle of the helical gear, further, the circular arc positioning surface of the positioning element 2 is meshed and fixed with the helical gear, and meanwhile, the set screw 3 tightly pushes the annular groove of the positioning element 2.
The utility model discloses can press from both sides tight location to spur gear and helical gear, improve the suitability of using, practice thrift manufacturing cost, the production efficiency is improved, positioning element 2 can be rotatory around positioning claw 1's hole axis, in order to realize cooperating with different spiral lead angle tooth types, thereby press from both sides tight location to the helical gear of different models, the application scope who uses improves, holding screw 3 passes positioning claw 1 and pushes up tightly with positioning element 2's ring channel, can prevent that positioning element 2 from deviating from, the reliability of using improves.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a finish turning positioner suitable for spur gear and helical gear, includes location jack catch (1), its characterized in that: the positioning device is characterized in that a positioning element (2) is arranged in a through hole of the positioning clamping jaw (1), the positioning element (2) can rotate around the axis of the hole of the positioning clamping jaw (1), and the positioning clamping jaw (1) is in threaded connection with a set screw (3).
2. The fine turning positioning device for the spur gear and the helical gear according to claim 1, wherein: the number of the positioning clamping jaws (1) is three, and the three positioning clamping jaws (1) are arranged circumferentially.
3. The fine turning positioning device for the spur gear and the helical gear according to claim 1, wherein: one end of the positioning element (2) is provided with a circular arc positioning surface.
4. The fine turning positioning device for the spur gear and the helical gear according to claim 1, wherein: an annular groove is arranged on the positioning element (2).
5. The fine turning positioning device for the spur gear and the helical gear according to claim 1, wherein: the top end of the set screw (3) is movably connected with the annular groove of the positioning element (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022116469.5U CN213163124U (en) | 2020-09-24 | 2020-09-24 | Finish turning positioning device suitable for straight gear and helical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022116469.5U CN213163124U (en) | 2020-09-24 | 2020-09-24 | Finish turning positioning device suitable for straight gear and helical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213163124U true CN213163124U (en) | 2021-05-11 |
Family
ID=75776140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022116469.5U Active CN213163124U (en) | 2020-09-24 | 2020-09-24 | Finish turning positioning device suitable for straight gear and helical gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213163124U (en) |
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2020
- 2020-09-24 CN CN202022116469.5U patent/CN213163124U/en active Active
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