CN105234504A - Efficient high-precision shaft hobbing fixture - Google Patents
Efficient high-precision shaft hobbing fixture Download PDFInfo
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- CN105234504A CN105234504A CN201510808617.0A CN201510808617A CN105234504A CN 105234504 A CN105234504 A CN 105234504A CN 201510808617 A CN201510808617 A CN 201510808617A CN 105234504 A CN105234504 A CN 105234504A
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- axle class
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Abstract
The invention relates to an efficient high-precision shaft hobbing fixture which comprises a fixture body, a lower center and an upper center, wherein the fixture body, the lower center and the upper center are coaxially arranged in sequence. A hollow structure capable of accommodating the lower center is formed in the middle of the fixture body, a plurality of cutting edges are arranged at one end of the fixture body, and the cutting edges can be embedded into a workpiece to be fixedly connected with the workpiece. The lower center is arranged in the hollow structure of the fixture body in a sliding mode, one end of the lower center stretches out of the hollow structure, and the part, stretching out of the hollow structure, of the lower center is a conical boss matched with a conical surface hole of the workpiece. The upper center is arranged at one end of the workpiece and used for abutting against the workpiece. The efficient high-precision shaft hobbing fixture has the beneficial effects that the fixture is simple in structure, the locating precision is effectively improved, and using stability is enhanced; the defects, for example, the locating precision is affected by clamping deformation, axial locating errors and the cleanliness, are effectively overcome.
Description
Technical field
The present invention relates to jig for machining, particularly relate to a kind of high-efficiency high-accuracy axle class gear-hobbing clamp.
Background technology
In current automatic transmission gearbox, the required precision of planet row portioned product is general all very high, and process difficulty is larger.Particularly for sun gear, particularly highlight in gear hobbing process.This Workpiece structure is the thin ancient piece of jade, round, flat and with a hole in its centre part of long cylinder class, external tooth gear hobbing required precision reaches 5 ~ 6 grades of levels, and process is easily out of shape, and especially faces a severe test for jig Design.
Summary of the invention
For the above-mentioned defect that prior art problem exists, the present invention aims to provide a kind of high-efficiency high-accuracy axle class gear-hobbing clamp, this clamp structure is simple, effectively improve positioning precision, enhance stability in use, and effectively overcome pinching deformation, axial location error and cleannes and affect many defects such as positioning precision.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of high-efficiency high-accuracy axle class gear-hobbing clamp, comprises clamp body that concentric arranges, lower top and upper top successively; The middle part of described clamp body has and can hold lower top hollow-core construction, and the end, one end of described clamp body is provided with some cutting edges; Described lower top slip is arranged in the hollow-core construction of clamp body, and hollow-core construction is stretched out in lower top one end, and described lower top part of stretching out hollow-core construction is set to the cone boss matched with the conical hole of workpiece; Described top one end being placed in workpiece connects workpiece the end of for.
Further, also comprise butterfly spring, described butterfly spring is socketed in the lower top end away from cone boss.
Further, the described lower top side being provided with cone boss also comprises the first cylinder and the second cylinder, and opposite side is also provided with three cylindrical body, and described first cylindrical diameter is greater than the second cylindrical diameter.
Further, described hollow-core construction is stepped, and it comprises the first circular hole, the second circular hole and the 3rd circular hole that the same hole heart is arranged; Described first Circularhole diameter is less than the second Circularhole diameter, and described 3rd Circularhole diameter is less than the first Circularhole diameter, and described butterfly spring is placed in the second circular hole, described lower top on the second cylinder be placed in the 3rd circular hole through butterfly spring.
Further, the end that connects workpiece is set to circular shaft at the described top end.
Further, the diameter of described circular shaft is greater than the diameter of bore with workpiece link, and upper top circular shaft end is provided with chamfering.
Further, described butterfly spring is two.
Further, the hollow-core construction in described clamp body is that upper and lower end face is through.
Further, the outermost centre position of described second cylinder and three cylindrical body has centre bore.
Further, described second cylinder also has steam vent; Described steam vent comprises first and second aperture, and the first aperture is located on the outer cylinder surface of the second cylinder root, and the second aperture to be located in the second cylinder and to be connected with centre bore.
The beneficial effect that the present invention has is: this clamp structure is simple, effectively improves positioning precision, enhances stability in use, and effectively overcomes pinching deformation, axial location error and cleannes and affect many defects such as positioning precision.Processing through on-the-spot workpiece in enormous quantities uses, and what this structural clips can be comparatively stable guarantees to process rear workpiece circular runout between 0.005 ~ 0.010.Manufacture craft simplifies simultaneously, greatly reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is a kind of high-efficiency high-accuracy axle of the present invention class gear-hobbing clamp general assembly structural representation;
Fig. 2 is the enlarged diagram of clamp body shown in Fig. 1;
Fig. 3 is lower top enlarged diagram shown in Fig. 1;
Fig. 4 is upper top enlarged diagram shown in Fig. 1.
In figure:
1, clamp body, 2, butterfly spring, 3, lower top, 4, upper top, 5, workpiece, 11, hollow-core construction, 12, cutting edge, 31, cone boss, the 32, first cylinder, 33, the second cylinder, 34, three cylindrical body, 35, steam vent, 36, centre bore, the 111, first circular hole, the 112, second circular hole, 113, the 3rd circular hole, the 351, first aperture, the 352, second aperture.
Detailed description of the invention
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of high-efficiency high-accuracy axle class gear-hobbing clamp, with reference to shown in Fig. 1, comprise the clamp body 1, lower top 3 and upper top 4 that concentric is arranged successively, in order to improve positioning precision, avoid pinching deformation, adopt lower top 3, upper top 4 centering, workpiece 5 clamp body 1 and between top 4, this design is also provided with butterfly spring 2, and during concrete use, butterfly spring 2 adopts two panels superimposed.
With reference to shown in Fig. 2,3, in order to strengthen stability in use, the middle part of clamp body 1 has and can hold lower top 3 and the through hollow-core construction 11 in upper and lower end face, and the end, one end of clamp body 1 is provided with some cutting edges 12, and the end cocoa that workpiece 5 is contacted with cutting edge 12 embeds in cutting edge 12, workpiece 5 provides circumference driving force by cutting edge 12, clamp body 1 is rotated together with workpiece 5, and relative position keep fixing and without change relatively, guarantees not get loose, Continuous Drive, thus the processing of stability and high efficiency.
Lower top 3 slide is arranged in the hollow-core construction 11 of clamp body 1, and hollow-core construction 11 is stretched out in lower one end of top 3, lower top 3 parts of stretching out hollow-core construction 11 are set to the cone boss 31 matched with the conical hole outer surface of workpiece 5, lower top 3 sides being provided with cone boss 31 also comprise the first cylinder 32 and the second cylinder 33, opposite side is also provided with three cylindrical body 34 and avoids that cone boss 31 is top with grinding machine in grinding process to be interfered, and the diameter of the first cylinder 32 is greater than the diameter of the second cylinder 33.
Especially, for the ease of the lower processing of top 3, have centre bore 36 in the outermost centre position of the second cylinder 33 and three cylindrical body 34.
Preferably, hollow-core construction 11 is stepped, and it comprises the first circular hole 111, second circular hole 112 and the 3rd circular hole 113 of the heart setting of same hole; First circular hole 111 diameter is less than the second circular hole 112 diameter, and the 3rd circular hole 113 diameter is less than the first circular hole 111 diameter; Butterfly spring 2 is placed in the second circular hole 112, and the second cylinder 33 on lower top 3 is placed in the 3rd circular hole 113 through butterfly spring 2.
Preferably, the first cylinder 32, second cylinder 33 and hollow-core construction 11 corresponding part matched in clearance.
With reference to shown in Fig. 4, for ensureing that the upper circumferential ends of top 4 stretches in inner hole of workpiece, the end that upper top 4 ends connect workpiece 5 is set to circular shaft 41, its circular shaft 41 end is provided with chamfering, and the diameter of circular shaft 41 is slightly larger than the diameter of bore with workpiece 5 link, upper top 4 are connected on lathe away from one end of circular shaft 41.
Preferably, for the ease of being vented and convenient installation, the second cylinder 33 also has steam vent 35; Steam vent 35 comprises the first aperture 351 and the second aperture 351, aperture 352, first is located on the outer cylinder surface of the second cylinder 33 root, and the second aperture 352 to be located in the second cylinder 33 and to be connected with centre bore 36.
Operation principle: top 4 descending when pressing to workpiece 5 on lathe, power passes to lower top 3 through workpiece 5, cause butterfly spring 2 generation to have and double single spring deformation force, deformation force reacts on lower top 3 and workpiece 5, and guaranteeing provides the axial upward force of workpiece 5 much larger than gear hobbing process gear hobbing power; Simultaneously, the end face that clamp body 1 and workpiece 5 are located is designed to end face platform and cutting edge 12 radially adjoining and is uniformly distributed, under the effect of downstream pressure, workpiece 5 lower surface is caused slightly to embed in cutting edge 12, when worktable rotary, drive workpiece 5, cutting edge 12 driving force is much larger than the gear hobbing force of periphery simultaneously.When machining state, the system be made up of workpiece 5, fixture, lathe, just can become the very sufficient entirety of rigidity.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high-efficiency high-accuracy axle class gear-hobbing clamp, is characterized in that: comprise the clamp body (1) of concentric setting, lower top (3) and upper top (4) successively;
The middle part of described clamp body (1) has the hollow-core construction (11) can holding lower top (3), and the end, one end of described clamp body (1) is provided with some cutting edges (12);
Described lower top (3) are slided and are arranged in the hollow-core construction (11) of clamp body (1), and hollow-core construction (11) is stretched out in the one end of lower top (3), the part that described lower top (3) stretch out hollow-core construction (11) is set to the cone boss (31) matched with the conical hole of workpiece (5);
One end that described top (4) are placed in workpiece (5) connects workpiece (5) end of for.
2. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 1, is characterized in that: also comprise butterfly spring (2), and described butterfly spring (2) is socketed in lower top 3 away from the end of cone boss (31).
3. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 1, it is characterized in that: the side that described lower top (3) are provided with cone boss (31) also comprises the first cylinder (32) and the second cylinder (33), opposite side is also provided with three cylindrical body (34), and the diameter of described first cylinder (32) is greater than the diameter of the second cylinder (33).
4. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 1, it is characterized in that: described hollow-core construction (11) is for stepped, and it comprises the first circular hole (111), the second circular hole (112) and the 3rd circular hole (113) that the same hole heart is arranged;
Described first circular hole (111) diameter is less than the second circular hole (112) diameter, described 3rd circular hole (113) diameter is less than the first circular hole (111) diameter, described butterfly spring (2) is placed in the second circular hole (112), and the second cylinder (33) on described lower top (3) is placed in the 3rd circular hole (113) through butterfly spring (2).
5. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 1, is characterized in that: the end that described upper top (4) end connects workpiece (5) is set to circular shaft (41).
6. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 5, it is characterized in that: the diameter of described circular shaft (41) is greater than the diameter of bore with workpiece (5) link, and circular shaft (41) end of upper top (4) is provided with chamfering.
7. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 2, is characterized in that: described butterfly spring (2) is two.
8. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 1, is characterized in that: the hollow-core construction (11) in described clamp body (1) for upper and lower end face through.
9. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 3, is characterized in that: the outermost centre position of described second cylinder (33) and three cylindrical body (34) has centre bore (36).
10. a kind of high-efficiency high-accuracy axle class gear-hobbing clamp according to claim 3, is characterized in that: described second cylinder (33) also has steam vent (35);
Described steam vent (35) comprises first and second aperture (351,352), first aperture (351) is located on the outer cylinder surface of the second cylinder (33) root, and the second aperture (352) to be located in the second cylinder (33) and to be connected with centre bore (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808617.0A CN105234504A (en) | 2015-11-19 | 2015-11-19 | Efficient high-precision shaft hobbing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808617.0A CN105234504A (en) | 2015-11-19 | 2015-11-19 | Efficient high-precision shaft hobbing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105234504A true CN105234504A (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510808617.0A Pending CN105234504A (en) | 2015-11-19 | 2015-11-19 | Efficient high-precision shaft hobbing fixture |
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| CN (1) | CN105234504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514452A (en) * | 2018-11-21 | 2019-03-26 | 上海航天控制技术研究所 | A kind of component assembly of hole axle class high-precision centralising device and its method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664227A (en) * | 1968-07-30 | 1972-05-23 | Hurth Masch Zahnrad Carl | Pressure-operated device for clamping of workpieces on gear processing machines |
| CN102653018A (en) * | 2012-04-06 | 2012-09-05 | 常州德劢精密传动有限公司 | Tooth alignment and hobbing clamp for octagonal blind hole |
| CN102672287A (en) * | 2012-06-06 | 2012-09-19 | 无锡新宏泰电器科技股份有限公司 | Quickly-clamping fixture for hobbing gears |
| CN103381513A (en) * | 2013-08-05 | 2013-11-06 | 天津天海同步科技股份有限公司 | Hobbing tool for shaft gear |
| CN203371133U (en) * | 2013-08-05 | 2014-01-01 | 天津天海同步科技股份有限公司 | Shaft gear hobbing tool |
| CN203636122U (en) * | 2013-11-29 | 2014-06-11 | 无锡威孚中意齿轮有限责任公司 | End-face drive roller gear fixture |
| CN104384624A (en) * | 2014-10-30 | 2015-03-04 | 刘文生 | Cylindrical mandrel hobbing fixture |
| CN204430473U (en) * | 2015-02-13 | 2015-07-01 | 株洲齿轮有限责任公司 | Thin and long shafts workpiece is carried out to the fixture of gear hobbing |
| CN205200713U (en) * | 2015-11-19 | 2016-05-04 | 天津天海同步科技有限公司 | High -efficient high accuracy axle class hobbing clamp |
-
2015
- 2015-11-19 CN CN201510808617.0A patent/CN105234504A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664227A (en) * | 1968-07-30 | 1972-05-23 | Hurth Masch Zahnrad Carl | Pressure-operated device for clamping of workpieces on gear processing machines |
| CN102653018A (en) * | 2012-04-06 | 2012-09-05 | 常州德劢精密传动有限公司 | Tooth alignment and hobbing clamp for octagonal blind hole |
| CN102672287A (en) * | 2012-06-06 | 2012-09-19 | 无锡新宏泰电器科技股份有限公司 | Quickly-clamping fixture for hobbing gears |
| CN103381513A (en) * | 2013-08-05 | 2013-11-06 | 天津天海同步科技股份有限公司 | Hobbing tool for shaft gear |
| CN203371133U (en) * | 2013-08-05 | 2014-01-01 | 天津天海同步科技股份有限公司 | Shaft gear hobbing tool |
| CN203636122U (en) * | 2013-11-29 | 2014-06-11 | 无锡威孚中意齿轮有限责任公司 | End-face drive roller gear fixture |
| CN104384624A (en) * | 2014-10-30 | 2015-03-04 | 刘文生 | Cylindrical mandrel hobbing fixture |
| CN204430473U (en) * | 2015-02-13 | 2015-07-01 | 株洲齿轮有限责任公司 | Thin and long shafts workpiece is carried out to the fixture of gear hobbing |
| CN205200713U (en) * | 2015-11-19 | 2016-05-04 | 天津天海同步科技有限公司 | High -efficient high accuracy axle class hobbing clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514452A (en) * | 2018-11-21 | 2019-03-26 | 上海航天控制技术研究所 | A kind of component assembly of hole axle class high-precision centralising device and its method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160113 |
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| WD01 | Invention patent application deemed withdrawn after publication |