CN102275070B - Method for machining small-modulus curve-tooth bevel gear and double-curve gear - Google Patents
Method for machining small-modulus curve-tooth bevel gear and double-curve gear Download PDFInfo
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- CN102275070B CN102275070B CN201110203549.7A CN201110203549A CN102275070B CN 102275070 B CN102275070 B CN 102275070B CN 201110203549 A CN201110203549 A CN 201110203549A CN 102275070 B CN102275070 B CN 102275070B
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Abstract
The invention provides a high-efficiency method for machining a small-modulus curve-tooth bevel gear and a double-curve gear. The technical scheme adopted by the invention is that: the machining method comprises the following steps of: 1) calculating machining cutting data of a bull wheel and a pony wheel, wherein the tooth profile of the bull wheel adopts a straight profile tooth shape; and calculating a correction quantity of the pony wheel during gear engagement according to change of a tooth space and a tooth depth of the bull wheel as well as an engagement line between the pony wheel and the bull wheel, namely calculating the tooth profile of the pony wheel, and inputting the data of the bull wheel and the pony wheel into a gear milling machine; 2) machining the bull wheel; and 3) machining the pony wheel. By the method, the conventional machining efficiency can be improved doubly.
Description
Technical field
The present invention relates to small mode number spiral bevel gear production technical field.
Background technology
With the production-scale expansion of domestic small mode number spiral bevel gear, the increase of yield, export volume increase, domestic life
Produce manufacturer actively to seek to improve the new method of small mode number spiral bevel gear production efficiency further.
Domestic enterprise produces the technology status of small mode number spiral bevel gear and hypoid gear：Domestic enterprise produces in enormous quantities
Said gear, is concentrated mainly on river, Zhejiang area, and production unit is many, and scale is big, and the mode of production is all using traditional non-numerical control gear milling machine
Duplex is processed, the coarse-fine processing of bull wheel, steamboat, alternate blade cutter, and Double-surfaces Method Rolling-cut shear once completes, referred to as dual double
Face method.
Domestic many enterprises have adopted domestic four-axle linked CNC small mode number spiral bevel gear tooth milling machine to produce low module curved tooth
Bevel gear.Especially gear ratio is more than or equal to 3, and bull wheel pitch cone angle is more than or equal to 70 ° of spiral bevel gear, the big of hypoid gear
Batch production, all using duplex.
The production in enormous quantities of medium above mode number spiral bevel gear and hypoid gear adopts half generating method, bull wheel substantially
Roughing coarse cutter, three face angle of throat disk plunge method processing.Polish circle draws smoothing mill, two-sided circular broach disk, circle traction therapy essence
Processing, circular broach dribbling breach, indentation, there is for indexing.During processing workpiece, workpiece fixation stands fast, and circular broach disk turns around and completes
One tooth, in the indexing of cutterhead indentation, there, cutterhead uniform rotation, big tooth profile is with cutter unanimously straight profile.
Steamboat：Roughing, generation, alternate blade cutter.
Polish, concave, convex face uses one side cutterhead generation to process respectively.
Lathe is 30 ° of inclined main axes or band degeneration mechanism.
Currently many enterprises have adopted 5 axle linkage CNC spiral bevel gear milling machines to substitute conventional mechanical transmission milling both at home and abroad
Tooth machine produces medium above mode number spiral bevel gear, and coarse-fine processing respectively is such as above-mentioned.
Content of the invention
The technical problem to be solved is to provide a kind of small mode number spiral bevel gear of high working efficiency and hyperbolic
The processing method of line gear.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
Described processing method comprises the steps：
1）, calculate the processing Cutting data of bull wheel and steamboat, described big tooth profile using directly wide profile of tooth, by bull wheel
Teeth groove, tooth depth change, and steamboat and the path of contact of bull wheel, calculate the correction of steamboat when gear engages, that is, calculate little
The flank profil of wheel, and by both data input tooth milling machines；
2）, processing bull wheel；
3）, processing steamboat.
The present invention compared with prior art has advantages below：Existing working (machining) efficiency can be made to significantly improve.
Brief description
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limit to the present invention
System.
Fig. 1 is the operation principle schematic diagram of homalographic cutting；
Fig. 2 is that directly wide profile of tooth substitutes two flank profil comparison schematic diagrams of involute profile to bull wheel；
Fig. 3 is directly wide profile of tooth bull wheel and steamboat engagement figure（Little tooth profile must be revised）；
Fig. 4 is the processing of bull wheel plunge method, and big flywheel rotor plane bores wire condition with bull wheel root, i.e. bull wheel plunge method processing tooth root
The mutually reply steamboat that changes is modified；
When Fig. 5 is steamboat correction, by different spirals reversely, the upper and lower rolling of male and fomale(M＆F) is reversely implemented by programming, and steamboat rolling cut is repaiied
Just left and right direction is different, and concave, convex face is different to revise direction difference；
Fig. 6 is duplex processing small mode number spiral bevel gear, and helical angle is not revised, and adopts two-way rolling cut, steamboat
Male and fomale(M＆F) helical angle can be revised.
Specific embodiment
The present invention is to be specifically designed for the Special processing method that small mode number spiral bevel gear and hypoid gear design.
Below it is described in detail：
The present invention is a kind of high efficiency processing method, is more than or equal to 3 for producing gear ratio, bull wheel pitch cone angle is more than
Small mode number spiral bevel gear equal to 70 °, it is different from half rolling cut that existing big-and-middle mode number spiral bevel gear is produced in enormous quantities
Processing method.
The four-axle linked CNC small mode number spiral bevel gear mill teeth machining that the present invention adopts the rigidity of domestic production good is big,
Steamboat.
Hereinafter the present invention is described in detail：
The processing of bull wheel：Bull wheel of the present invention adopts Double-surfaces Method, i.e. the processing of alternate blade cutter plunge method, substitutes original rolling cut
Method.Alternate blade cutter double-side cutting, during cutting, no any rotation fixed by bull wheel, and bull wheel substitutes involute profile by straight exterior feature profile of tooth, greatly
The teeth groove of wheel, tooth depth change, and see Fig. 2.
Using homalographic cutting, S1 is that every knife group amount of feeding (press inside and outside each knife and be one group by each knife for incision feeding）, that is,
Each knife group area of cut is equal, approach, and incision feed speed is successively decreased, and such once mounting cutting completes bull wheel
Roughing and fine machining, Tool in Cutting Load Balanced is stable, improves the life-span of cutter.
The area of cut calculate, that is, constant speed cut and homalographic cutting relatively as shown in Figure 1.
The processing of steamboat：Because bull wheel is using directly wide profile of tooth, Fig. 2 is that directly wide profile of tooth substitutes two teeth of involute profile to bull wheel
Wide comparison schematic diagram, outside is involute profile for directly wide profile of tooth, the inside, and steamboat is not corrected to engage with bull wheel.
When can calculate said gear engagement by bevel gear back cone principle, the correction of steamboat, cuts in processing（As shown in Figure 3）.Logical
Cross the data calculating, tooth milling machine carries out the correction of profile of tooth, tooth trace, tooth depth to steamboat, just can engage with bull wheel, reach preferably
Contact area.
The processing method of steamboat of the present invention is different from half rolling cut one side cutterhead fine cut of big or middle mode number spiral bevel gear.And
It is to adopt alternate blade cutter, once mounting, two-way generation processing, in cutting, revise with rolling ratio.
During processing, steamboat Roughing and fine machining is carried out simultaneously, one face of Roughing and fine machining, carries out roughing to another side simultaneously,
First carry out the coarse-fine Rolling-cut shear of a flank of tooth, complete another side slightly cuts processing simultaneously.Above-mentioned Rolling-cut shear one terminates, workpiece
Stand fast, that is, carry out cutter spacing, rolling ratio is revised, reversely another side is carried out with one side rolling cut polish, indexes after two-way rolling cut（Point
Tooth）, indexing（Divide tooth）Carry out the processing of another teeth groove afterwards, repeat above-mentioned two-way rolling cut, stand fast until whole teeth groove process
Become.The two-way rolling cut of steamboat can be by the different hands of spiral, and during processing, rolling cut direction is determining correction 1）Direction（The concave surface of steamboat and convex
Facial contour）, then to be implemented by programming.（See Fig. 5）.
The present invention adopts two-way rolling cut, carries out the incision feeding of Z axis in process simultaneously, revises gullet depth（Figure
4）, bull wheel processed by plunge method, bull wheel teeth groove, and tooth depth changes（See Fig. 4）.Bull wheel tooth root is not on root cone line.Bull wheel
During processing, steamboat teeth groove, tooth root are modified simultaneously, to be realized by Z axis.Z axis incision is to steamboat by different rolling cut directions
Tooth depth is modified（See Fig. 5）
Steamboat adopts two-way generation, that is, improve stock-removing efficiency and enable above-mentioned correction again, meet half Rolling-cut shear
The high efficiency of method and high-quality require.
Small mode number spiral bevel gear and hypoid gear are processed using the half Rolling-cut shear method of the present invention and tool section type is hard
Matter alloy cutter is applied, and existing working (machining) efficiency can be made to significantly improve, and saves the artificial and energy, has splendid economic effect simultaneously
Benefit.
Present invention is equally applicable to the production in enormous quantities of low module hypoid gear.
Finally it should be noted that above example is only in order to illustrating technical scheme, rather than the present invention is protected
The restriction of shield scope, although having made to explain to the present invention with reference to preferred embodiment, those skilled in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (3)
1. a kind of small mode number spiral bevel gear and hypoid gear processing method it is characterised in that described processing method include as
Lower step：
1）, calculate the processing Cutting data of bull wheel and steamboat, described big tooth profile using directly wide profile of tooth, by the tooth of bull wheel
Groove, tooth depth change, and steamboat and the path of contact of bull wheel, calculate the correction of steamboat when gear engages, that is, calculate steamboat
Flank profil, and will be in both data input tooth milling machines；
2）, processing bull wheel；
3）, processing steamboat,
Described step 2）In, bull wheel adopts alternate blade cutter plunge method to process, and during cutting, bull wheel is fixed；
Described bull wheel adopts homalographic cutting method；
Described step 3）In, described steamboat adopts alternate blade cutter, once mounting, the processing of two-way generation；
Described steamboat, in cutting, is revised with rolling ratio；
Described small mode number spiral bevel gear gear ratio is more than or equal to 3, and bull wheel pitch cone angle is more than or equal to 70 °;
Described steamboat, in cutting, first carries out the coarse-fine Rolling-cut shear of a flank of tooth, complete another flank of tooth slightly cuts processing simultaneously, on
State Rolling-cut shear one end, workpiece stands fast, that is, carry out cutter spacing, rolling ratio is revised, and reversely another side is carried out with one side rolling cut finishing
Work, divides tooth after the completion of two-way rolling cut, carry out the processing of another teeth groove, repeat above-mentioned two-way rolling cut after point tooth, stand fast until
All teeth groove machines.
2. as claimed in claim 1 a kind of small mode number spiral bevel gear and hypoid gear processing method it is characterised in that
The two-way rolling cut of described steamboat can be by the different hands of spiral, and rolling cut direction during processing is determining the concave surface and convex surface wheel revising steamboat
Wide.
3. as claimed in claim 1 a kind of small mode number spiral bevel gear and hypoid gear processing method it is characterised in that
Also carry out the incision feeding of Z axle, to revise gullet depth in the course of processing of described steamboat simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203549.7A CN102275070B (en) | 2011-07-20 | 2011-07-20 | Method for machining small-modulus curve-tooth bevel gear and double-curve gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203549.7A CN102275070B (en) | 2011-07-20 | 2011-07-20 | Method for machining small-modulus curve-tooth bevel gear and double-curve gear |
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| CN102275070A CN102275070A (en) | 2011-12-14 |
| CN102275070B true CN102275070B (en) | 2017-02-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102896380B (en) * | 2012-09-16 | 2017-10-03 | 浙江丰立机电有限公司 | A kind of processing method for producing interchangeable small mode number spiral bevel gear or low module hypoid gear in enormous quantities |
| CN105127519B (en) * | 2015-09-18 | 2017-06-30 | 长安大学 | A kind of thick blanking method of the steamboat of spiral bevel gear |
| CN115229455B (en) * | 2022-07-05 | 2024-02-23 | 一汽解放汽车有限公司 | Gear machining method, gear machining device, computer equipment and storage medium |
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| US3974595A (en) * | 1974-07-12 | 1976-08-17 | Fa. Zahnraderfabrik Renk Ag | Gear grinding machine for spiral bevel gears |
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| CN1792529A (en) * | 2005-07-21 | 2006-06-28 | 潘旭华 | Method for processing spiral bevel gear and apparatus for forming large wheel of bevel gear thereof |
| CN201519811U (en) * | 2009-11-04 | 2010-07-07 | 天津市精诚机床制造有限公司 | Four-axis numerical control spiral bevel gear broaching machine |
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Address after: 318025 Gao Yang Industrial Zone, Huangyan Town, Taizhou, Zhejiang Patentee after: Zhejiang Hao Hao Machine Tool Co.,Ltd. Address before: 318025 Taizhou Gao Yang Industrial Zone, Huangyan, Zhejiang Patentee before: Zhejiang Zhonghao Machine Tool Co.,Ltd. |
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Effective date of registration: 20171113 Address after: 318025 Zhejiang Province town Taizhou city of Gao Yang Cun Patentee after: ZHEJIANG FORE MACHINERY & ELECTRONICS CO.,LTD. Address before: 318025 Gao Yang Industrial Zone, Huangyan Town, Taizhou, Zhejiang Patentee before: Zhejiang Hao Hao Machine Tool Co.,Ltd. |
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Address after: Taizhou City, Zhejiang province 318025 town Huangyan District Court Gao Yang Cun Patentee after: ZHEJIANG FORE INTELLIGENT TECHNOLOGY CO.,LTD. Address before: 318025 Zhejiang Province town Taizhou city of Gao Yang Cun Patentee before: ZHEJIANG FORE MACHINERY & ELECTRONICS CO.,LTD. |
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