CN221018996U - Pitch circle positioning device for processing gear - Google Patents
Pitch circle positioning device for processing gear Download PDFInfo
- Publication number
- CN221018996U CN221018996U CN202323056190.2U CN202323056190U CN221018996U CN 221018996 U CN221018996 U CN 221018996U CN 202323056190 U CN202323056190 U CN 202323056190U CN 221018996 U CN221018996 U CN 221018996U
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- support
- tooth
- pitch circle
- tooth body
- hole
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- 238000003754 machining Methods 0.000 claims description 7
- 238000005255 carburizing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gear Processing (AREA)
Abstract
The utility model discloses a pitch circle positioning device for a machined gear, which comprises a support, wherein the support is of a strip-shaped structure, positioning holes are respectively formed in two ends of the support, a detachable tooth body is arranged on one side of the support, a plurality of tooth shapes meshed with the machined gear are arranged on the outer side face of the tooth body, a through hole is formed in the middle position of the tooth body, a threaded hole is formed in the middle position of the support, the through hole corresponds to the threaded hole in position, the tooth body is in threaded connection with the support through a screw, the pitch circle positioning device for the machined gear achieves real pitch circle positioning, meanwhile, a plurality of modulus tooth shapes are arranged on the tooth body, and the positions of the corresponding tooth shapes on the tooth body are adjusted according to the modulus of the machined gear, so that the pitch circle positioning device is rapid and convenient to use, and the convenience in use is greatly improved.
Description
Technical Field
The utility model relates to the technical field of gear machining, in particular to a pitch circle positioning device for machining gears.
Background
The high-hardness tooth surface gear generally adopts a heat treatment method such as carburizing and quenching to obtain higher tooth surface hardness. According to the technological requirements, the gear is subjected to carburizing and quenching and then finish machining, in the prior art, as shown in fig. 1, the pitch circle positioning is realized mainly by attaching a round bar to the tooth form of the gear to be machined, or the pitch circle positioning is realized by integrally forming the round bar and a clamping element, the positioning mode belongs to tooth form positioning, namely 'approximate pitch circle positioning', rather than real pitch circle positioning, the pitch circle can only be generated by meshing in nature, and in addition, when different modulus gears are machined, the elements are required to be replaced again, so that the operation is troublesome.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides a pitch circle positioning device for processing gears, which realizes real pitch circle positioning, simultaneously sets tooth shapes with a plurality of moduli on a tooth body, adjusts the positions of the corresponding tooth shapes on the tooth body according to the moduli of the processed gears, is quick and convenient, and can effectively solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a processing pitch circle positioner for gear, includes the support, the support is the bar structure, the both ends of support are provided with the locating hole respectively, one side of support is provided with detachable tooth body, the lateral surface of tooth body is provided with a plurality of tooth shapes with being processed the gear engaged with.
As a preferable technical scheme of the utility model, a through hole is arranged at the middle position of the tooth body, a threaded hole is arranged at the middle position of the support, the through hole corresponds to the threaded hole in position, and the tooth body is connected with the support through screw threads.
As a preferable technical scheme of the utility model, the head diameter of the screw is larger than the diameter of the through hole.
As a preferable technical scheme of the utility model, the tooth body and the support are respectively provided with corresponding limiting holes, the limiting holes are uniformly distributed around the central axis of the positioning hole, and the anti-rotation pins are inserted into the limiting holes on the tooth body and the support.
Compared with the prior art, the utility model has the beneficial effects that: the pitch circle positioning device for the machined gear is reasonable in design and convenient to operate, is meshed with the modulus of the machined gear by arranging the multiple modulus tooth shapes on the tooth shapes, meets the involute meshing principle, achieves real pitch circle positioning, is distributed with the multiple modulus tooth shapes on the tooth body, can be adjusted to the tooth shapes with the same modulus as the machined gear in a rotating mode and meshed with the machined gear, forms effective positioning, and greatly improves the stability of machining positioning.
Drawings
FIG. 1 is a schematic diagram of a prior art positioning structure;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the structure of the tooth body;
Fig. 5 is a schematic representation of the present utility model in use.
In the figure: 1 support, 2 locating holes, 3 tooth bodies, 4 limiting holes, 5 tooth shapes, 6 anti-rotation pins, 7 screws, 8 threaded holes and 9 through holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2-5, the present utility model provides a technical solution: the pitch circle positioning device for the machined gear comprises a support 1, wherein the support 1 is of a strip-shaped structure, positioning holes 2 are respectively formed in two ends of the support 1, a through hole 9 is formed in the middle of a tooth body 3, a threaded hole 8 is formed in the middle of the support 1, the through hole 9 corresponds to the threaded hole 8 in position, the tooth body 3 is in threaded connection with the support 1 through a screw 7, a plurality of tooth shapes 5 meshed with the machined gear are arranged on the outer side surface of the tooth body 3, and the corresponding tooth shapes 5 on the tooth body 3 can be rotated to the position meshed with the machined gear by loosening the screw 7 according to the modulus of the machined gear, so that quick positioning is realized;
For effective fixing of the tooth body 3 to the abutment 1, the head diameter of the screw 7 is greater than the diameter of the through hole 9.
In order to prevent the situation that the machined gear slightly rotates in the machining process after the positioning is finished, corresponding limiting holes 4 are formed in the tooth body 3 and the support 1, the limiting holes 4 are uniformly distributed around the central axis of the positioning hole 2, anti-rotation pins 6 are inserted into the limiting holes 4 in the tooth body 3 and the support 1, and after the positions of tooth shapes 5 on the tooth body 3 are adjusted, the machined gear is prevented from rotating by inserting the anti-rotation pins 6.
When in use: three positioning devices are arranged on a three-jaw chuck through positioning holes 2 on a support 1, tooth shapes 5 on tooth bodies 3 in the three positioning devices are meshed with involute tooth surfaces of a processed gear, the three positioning devices are arranged on the three-jaw chuck and meshed with the processed gear to form nodes when clamping tooth surfaces of the gear, and the circle centers of geometric circles formed by the three nodes are overlapped with the circle centers of pitch circles of the processed gear and are overlapped with the rotation centers of the three-jaw chuck to realize pitch circle positioning; meanwhile, by loosening the screw 7 and rotating the tooth body 3, the tooth shape 5 on the tooth body 3 is meshed with the tooth surface of the gear to be processed, and pitch circle positioning of gears with different moduli can be realized.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a processing pitch circle positioner for gear, includes support (1), its characterized in that: the support (1) is of a strip-shaped structure, positioning holes (2) are respectively formed in two ends of the support (1), a detachable tooth body (3) is arranged on one side of the support (1), and a plurality of tooth shapes (5) meshed with a machined gear are arranged on the outer side face of the tooth body (3).
2. The pitch circle positioning device for machining gears according to claim 1, wherein: the novel tooth structure is characterized in that a through hole (9) is formed in the middle of the tooth body (3), a threaded hole (8) is formed in the middle of the support (1), the through hole (9) corresponds to the threaded hole (8), and the tooth body (3) is in threaded connection with the support (1) through a screw (7).
3. A pitch circle positioning device for processing gears according to claim 2, wherein: the head diameter of the screw (7) is larger than the diameter of the through hole (9).
4. The pitch circle positioning device for machining gears according to claim 1, wherein: corresponding limiting holes (4) are formed in the tooth body (3) and the support (1), the limiting holes (4) are uniformly distributed around the central axis of the positioning hole (2), and anti-rotation pins (6) are inserted into the limiting holes (4) in the tooth body (3) and the support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323056190.2U CN221018996U (en) | 2023-11-13 | 2023-11-13 | Pitch circle positioning device for processing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323056190.2U CN221018996U (en) | 2023-11-13 | 2023-11-13 | Pitch circle positioning device for processing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221018996U true CN221018996U (en) | 2024-05-28 |
Family
ID=91178150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323056190.2U Active CN221018996U (en) | 2023-11-13 | 2023-11-13 | Pitch circle positioning device for processing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221018996U (en) |
-
2023
- 2023-11-13 CN CN202323056190.2U patent/CN221018996U/en active Active
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