CN105817721A - Clamp for hobbing of small-modulus internal spline gear - Google Patents
Clamp for hobbing of small-modulus internal spline gear Download PDFInfo
- Publication number
- CN105817721A CN105817721A CN201610348100.2A CN201610348100A CN105817721A CN 105817721 A CN105817721 A CN 105817721A CN 201610348100 A CN201610348100 A CN 201610348100A CN 105817721 A CN105817721 A CN 105817721A
- Authority
- CN
- China
- Prior art keywords
- gear
- clamp
- hobbing
- hole
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The invention relates to the technical field of gear machining, in particular to a clamp for hobbing of a small-modulus internal spline gear. The clamp for hobbing of the small-modulus internal spline gear comprises a clamp base, wherein the upper part of the clamp base is a circular truncated cone; a step surface is outwards arranged on the bottom side of the circular truncated cone; a positioning pin hole is formed in the step surface; an axial through hole is formed in the base; a spring power lock sleeves the circular truncated cone; and an inner hole which is matched with the outer side surface of the circular truncated cone is formed in the spring power lock. The clamp can be matched with an expansion core of an internal spline of the gear, radial positioning errors of parts are eliminated effectively, and therefore, machining precision can be improved greatly. Generally, radial runout of a machined gear can be about 0.03 mm, and the clamp is suitable for enterprises which produce gears in a large scale and have relatively high requirements on hobbing precision.
Description
Technical field
The present invention relates to gear machining technology field, especially a kind of low module inside spline wheel gear gear hobbing fixture.
Background technology
It is constant that the effect of fixture is to maintain work piece commitment positions in the course of processing, comprises two aspect implications: 1) positioning action: ensure that processed gear position before processing is correct；2) clamping action: ensure that when processed gear is cut, its position location does not changes.Gear-hobbing clamp is divided into presser type gear-hobbing clamp and core type gear-hobbing clamp two class that rises.Wherein.Presser type gear-hobbing clamp, because its fixture location diameter of axle or external splines self exist certain interval i.e. geometric eccentricity with gear inner spline, simultaneously when compressing, the alignment error that also can expand gear further as bad in pressing plate precision, thus affect the machining accuracy of gear.The core type that rises gear-hobbing clamp, because using external splines or the diameter of axle to coordinate with gear inner spline tensioner, fundamentally reduces the installation geometric eccentricity of gear, can be effectively improved the radial error of Gear Processing.
The existing core type gear-hobbing clamp that rises is by carrying the pull bar of outer wimble structure to move axially, make the external splines radial deformation of the elastic expansion-sleeve (i.e. having the external splines at expansion joint) of wimble structure in band realize tensioner function, but its difficulty of processing is relatively big and centering inconvenience before using.
Summary of the invention
The technical problem to be solved in the present invention is: based on the problems referred to above, and the present invention provides a kind of low module inside spline wheel gear gear hobbing fixture.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of low module inside spline wheel gear gear hobbing fixture, including clamp base, the top of described clamp base is a round platform, round platform base outwards has a step surface, dowel hole is offered on step surface, offering axial through hole in base, be arranged with spring ringfeder outside round platform, spring ringfeder has the endoporus matched with round platform lateral surface.
Further, described through hole is divided into epimere portion and hypomere portion, and the diameter in described hypomere portion is more than the diameter in epimere portion.
Further, being placed with the pull bar of band pressing plate in described through hole, described pressing plate offsets with one end of spring ringfeder.
Further, the external diameter of described spring ringfeder closes with the diameter compatible of gear to be processed.
Further, the bottom of described dowel hole is provided with spring.
The invention has the beneficial effects as follows: the fixture heart that rises with gear inner spline can be realized and coordinate, effectively eliminate the radial positioning error of part, therefore machining accuracy can be greatly improved, the circular runout of general processed gear is up to about 0.03mm, it is adaptable to gear is produced in enormous quantities and the enterprise higher to gear hobbing required precision.
Accompanying drawing explanation
The present invention is further described for embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure: 1. clamp base, 2. round platform, 3. step surface, 4. dowel hole, 5. spring, 6a. epimere portion, 6b. hypomere portion, 7. pull bar, 8. pressing plate, 9. spring ringfeder, 10. in generation, adds work gear.
Detailed description of the invention
Presently in connection with specific embodiment, the invention will be further described, and following example are intended to illustrate rather than limitation of the invention further.
As shown in Figure 1, a kind of low module inside spline wheel gear gear hobbing fixture, including clamp base 1, the top of clamp base 1 is a round platform 2, round platform 2 base outwards has a step surface 3, dowel hole 4 is offered on step surface 3, the bottom of dowel hole 4 is provided with spring 5, axial through hole is offered in base 1, through hole is divided into epimere portion 6a and hypomere portion 6b, the diameter of the hypomere portion 6b diameter more than epimere portion 6a, the pull bar 7 of band pressing plate 8 it is placed with in through hole, spring ringfeder 9 it is arranged with outside round platform 2, spring ringfeder 9 has the endoporus matched with round platform 2 lateral surface, the external diameter of spring ringfeder 9 closes with the diameter compatible of gear 10 to be processed, pressing plate 8 offsets with one end of spring ringfeder 9.
During concrete operations, to be enclosed within outside round platform 2 for adding work gear 10, in generation, adds a base part for work gear 10 and falls on step surface 3, then spring ringfeder 9 is filled in round platform 2 and generation adds between work gear 10 medial wall, pull bar 7 with pressing plate 8 stretches in the through hole of base 1, by hydraulic pressure draw-bar, mechanism drives, pull bar 7 motion drives endoporus to be that the spring ringfeder 9 of inner cone slides on round platform 2 lateral surface, because both coordinating (being usually no more than 20 °) for Small Taper, therefore, when sliding, spring ringfeder 9 uniform external diameter produces the radially amount of rising, reach fixture external diameter and generation is added the effect of work gear 10 internal spline path radial clamping.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. a low module inside spline wheel gear gear hobbing fixture, including clamp base (1), it is characterized in that: the top of described clamp base (1) is a round platform (2), round platform (2) base outwards has a step surface (3), dowel hole (4) is offered on step surface (3), base offers axial through hole in (1), being arranged with spring ringfeder (9) outside round platform (2), spring ringfeder (9) has the endoporus matched with round platform (2) lateral surface.
A kind of low module inside spline wheel gear gear hobbing fixture the most according to claim 1, it is characterized in that: described through hole is divided into epimere portion (6a) and hypomere portion (6b), the diameter of described hypomere portion (6b) is more than the diameter in epimere portion (6a).
A kind of low module inside spline wheel gear gear hobbing fixture the most according to claim 2, it is characterized in that: be placed with the pull bar (7) of band pressing plate (8) in described through hole, described pressing plate (8) offsets with one end of spring ringfeder (9).
A kind of low module inside spline wheel gear gear hobbing fixture the most according to claim 1, it is characterised in that: the external diameter of described spring ringfeder (9) closes with the diameter compatible of gear to be processed (10).
A kind of low module inside spline wheel gear gear hobbing fixture the most according to claim 1, it is characterised in that: the bottom of described dowel hole (4) is provided with spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348100.2A CN105817721A (en) | 2016-05-24 | 2016-05-24 | Clamp for hobbing of small-modulus internal spline gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348100.2A CN105817721A (en) | 2016-05-24 | 2016-05-24 | Clamp for hobbing of small-modulus internal spline gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105817721A true CN105817721A (en) | 2016-08-03 |
Family
ID=56530427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610348100.2A Pending CN105817721A (en) | 2016-05-24 | 2016-05-24 | Clamp for hobbing of small-modulus internal spline gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105817721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262081A (en) * | 2018-09-29 | 2019-01-25 | 郑煌 | A kind of gear high precision hobbing tooling and its application method |
| CN109262080A (en) * | 2018-09-29 | 2019-01-25 | 郑煌 | A kind of gear high precision hobbing fixture and its application method |
| CN113523447A (en) * | 2021-07-29 | 2021-10-22 | 重庆市旺成科技股份有限公司 | Novel vertical gear honing machine |
-
2016
- 2016-05-24 CN CN201610348100.2A patent/CN105817721A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262081A (en) * | 2018-09-29 | 2019-01-25 | 郑煌 | A kind of gear high precision hobbing tooling and its application method |
| CN109262080A (en) * | 2018-09-29 | 2019-01-25 | 郑煌 | A kind of gear high precision hobbing fixture and its application method |
| CN113523447A (en) * | 2021-07-29 | 2021-10-22 | 重庆市旺成科技股份有限公司 | Novel vertical gear honing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |