CN101774029B - Method for turning helical surface of enveloping worm - Google Patents
Method for turning helical surface of enveloping worm Download PDFInfo
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- CN101774029B CN101774029B CN2009102440927A CN200910244092A CN101774029B CN 101774029 B CN101774029 B CN 101774029B CN 2009102440927 A CN2009102440927 A CN 2009102440927A CN 200910244092 A CN200910244092 A CN 200910244092A CN 101774029 B CN101774029 B CN 101774029B
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- turning
- worm
- enveloping worm
- helicoid
- anchor ring
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Abstract
The invention discloses a method suitable for turning the helical surfaces of various enveloping worms on a numerically controlled lathe with a C shaft, belonging to a method for machining an enveloping worm. In the technical scheme, an enveloping worm (1), a turning tool (2), a worm axis (3) and a plane S are provided, wherein the worm axis (3) is arranged on the plane S; when a helical groove of the enveloping worm (1) is turned, the left tool nose N and the right tool nose M of the turning tool (2) always move in the plane S along with the turning tool (2) in two directions respectively parallel and perpendicular to the worm axis (3); a left helical surface and a right helical surface of the helical groove of the enveloping worm (1) are obtained according to theoretical calculation; and the helical groove and the helical surface of the enveloping worm (1) are obtained by turning from the tooth crest ring surface of the enveloping worm (1) to a tooth root ring surface in a radially layered way along the ring surface and from points on the helical surface at one side of the helical groove of the enveloping worm (1) to the points on the helical surface at the other side in a tangentially layered way along the ring surface. The invention solves the problem of turning the helical surface of the enveloping worm on the numerically controlled lathe.
Description
Technical field
The present invention relates to a kind of method for turning of helical surface of enveloping worm, belong to the processing method of enveloping worm.
Background technology
The processing of hindley worm helicoid is to adopt the turning of lathe tool rectilinear edge to form on special purpose machine tool, turning efficient height, the helicoid of double enveloping worms such as other double enveloping worms such as plane, single conical surface, bipyramid face all is to adopt the wheel grinding of respective shapes to form, grinding efficiency is relatively low, so, the processing method of various double enveloping worm helicoids is usually in two steps: the first step goes out the enveloping worm helicla flute by the method for turning turning of hindley worm helicoid, and the wheel grinding of second step with respective shapes goes out various helical surface of enveloping worm.
In Fang Di, Jiang Yan " technological design of semifinishing circle-arc tooth cylindrical worm on numerically controlled lathe " literary composition in 2009 the 3rd phases " popular science and technology ", in order to process full-depth tooth groove width and tooth depth, be set forth in and carry out method axial and the radially layered cutting on the numerically controlled lathe respectively, but said method is the turning that is used for the cylindrical worm helicoid, the revolution of cylindrical worm and lathe tool are stable drive ratios along moving of worm axis, therefore on the numerically controlled lathe of no C axle, can realize the processing column worm screw, then can't realize for the turning of helical surface of enveloping worm.
Summary of the invention
The objective of the invention is to provide a kind of, go out helical surface of enveloping worm in the turning enveloping worm spiral fluted while also turning in the method that has the various helical surface of enveloping worm of turning on the universal numerical control lathe of C axle.
Comprise enveloping worm 1, lathe tool 2, worm axis 3 and place planar S thereof in order to reach the technical scheme that purpose of the present invention takes, the tooth top anchor ring of enveloping worm 1 and the radius of tooth root anchor ring are respectively R
aAnd R
f, its center of circle O
2In planar S, the intersection point of enveloping worm 1 throat's mid-plane and worm axis 3 is O, OO
2Centre-to-centre spacing a for enveloping worm pair, during the helicoid of turning enveloping worm 1, the left point of a knife N and the right point of a knife M of lathe tool 2 move on the both direction that is parallel and perpendicular to worm axis 3 with lathe tool 2 in planar S all the time, calculate according to theory, obtain a left side on the anchor ring that enveloping worm 1 helicla flute is R at radius, the corresponding points E of right side helicoid on the disalignment cross section, F, continuous swivel becket surface-worm 1, make the corresponding points E on the disalignment cross section, F constantly forwards centre-to-centre spacing a one side in the planar S to, adjust the correspondence position of lathe tool 2 on the both direction that is parallel and perpendicular to worm axis 3, make the corresponding points E on the left point of a knife N turning disalignment cross section, and then lathe tool 2 turning go out helix and part helicla flute on the helicoid of left side; Continuous rotation along with enveloping worm 1, corresponding points E on the disalignment cross section, F constantly forward centre-to-centre spacing a one side in the planar S to, adjust the correspondence position of lathe tool 2 on the both direction that is parallel and perpendicular to worm axis 3, make blade NM go out helicla flute part between an E and the F along the tangential layering turning of this anchor ring, go out corresponding points F on the disalignment cross section until right point of a knife M turning, lathe tool 2 turning this moment go out helix on part helicla flute and the right side helicoid, when the anchor ring radius R from tooth top anchor ring radius R
aTo tooth root anchor ring radius R
fDuring variation, lathe tool 2 radially layering turning goes out a series of helixes on helicla flute of enveloping worm 1 and the left and right helicoid thereof, forms helical surface of enveloping worm (as Fig. 1).
In the method for turning of above-mentioned helical surface of enveloping worm, blade NM is during along the tangential layering turning of anchor ring, and turning can be put E to the left side helicoid from right side helicoid point F.
In the method for turning of above-mentioned helical surface of enveloping worm, the enveloping worm 1 of correction is arranged, the tooth top anchor ring processing when not revising for the tooth top anchor ring.
In the method for turning of above-mentioned helical surface of enveloping worm, for bull ring of numbers surface-worm 1, after helicla flute of turning and helicoid thereof were finished, by a minute tooth, another helicla flute of turning and helicoid thereof were until obtaining each helicla flute and helicoid thereof.
In the method for turning of above-mentioned helical surface of enveloping worm, for bull ring of numbers surface-worm 1, keep same anchor ring radially layered, by a minute tooth, along the tangential layering of anchor ring, each helicla flute of turning and helicoid thereof, and then along the feeding of anchor ring radially layered, repeat the tangential layering of each anchor ring, each helicla flute of turning and helicoid thereof are up to processing whole helicla flutes and the helicoid of enveloping worm 1 from the tooth top anchor ring to the tooth root anchor ring.
In the method for turning of above-mentioned helical surface of enveloping worm, when the calculating of the left and right sides helicoid of enveloping worm 1, reserve suitable allowance, with the rough machining method of this method, can obtain the higher accurate enveloping worm of fineness through grinding again as enveloping worm 1 helicoid.
The present invention proposes a kind of method for turning of helical surface of enveloping worm, is to have the universal numerical control lathe higher slice turning enveloping worm helicla flute and the helicoid of C axle, for the processing of various enveloping worms provides a kind of new method.
Description of drawings
Fig. 1 is the method for turning schematic diagram of helical surface of enveloping worm.
Fig. 2 is the turning schematic diagram at the universal numerical control lathe upper ring surface worm spiral face with C axle.
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are described below.Planar double enveloping worm pair with not correction of the flank shape is an example, and relevant parameter is: centre-to-centre spacing a=250mm, right-hand worm head are counted z
1=1, worm gear number of teeth z
2=40, reference diameter of worm d
1=82mm, reference circle of wormwheel diameter d
2=418mm, worm gear transverse module m
t=10.45mm, root diameter of worm d
f=63.20mm, tip diameter of worm d
a=96.64mm, root circle of worm arc radius R
f=218.40mm, tip circle of worm arc radius R
a=201.68mm, main base circle diameter (BCD) d
b=158mm, worm screw active length L
w=130mm.
Numerically controlled lathe among Fig. 2 has C axle, X-axis and Z axle, enveloping worm 1 is installed on the C axle, worm axis 3 overlaps with the Z axle, enveloping worm 1 rotates with the C axle, the intersection point of X-axis and Z axle is the intersection point O of enveloping worm 1 throat's mid-plane and worm axis 3, planar S is through X-axis and Z axle, and the tooth top anchor ring of enveloping worm 1 and the radius of tooth root anchor ring are respectively R
aAnd R
f, the center of circle is O
2, OO
2Centre-to-centre spacing a for enveloping worm pair.Lathe tool 2 is installed on the knife rest of numerically controlled lathe, knife rest can be done the motion of Z axle and X-direction, the rectilinear edge NM of lathe tool 2 is parallel with the Z axle, the intermediate point of NM is P, during the helicoid of turning enveloping worm 1, left and right point of a knife N, the M of lathe tool 2 are in the planar S all the time, the width of cut-off line blade NM | NM|=4mm (less than whole tooth root groove widths of enveloping worm 1).
Shaping principle according to planar double enveloping worm, at enveloping worm 1 radius be on the anchor ring of R, be 0.05 ° each shaft section a series of corresponding points E, F on left and right helicoid to nibbling out that end obtains along helicla flute by the corner step-length from engaging-in end, forward this serial corresponding points E, F in the planar S centre-to-centre spacing a one side respectively, the position of calculating enveloping worm 1 angle of revolution when the serial therewith respectively corresponding points E of left and right point of a knife point N, M, F overlap on the lathe tool 2 and putting P is respectively
Show as solid line among Fig. 2 and dotted line that respectively enveloping worm 1 spiral fluted left side helicoid is initial shaft section at the shaft section of engaging-in end, the right side helicoid is the termination shaft section at the shaft section of nibbling out end.
According to the point of a knife half-breadth | NM|/2=2mm, the axial location difference (z of some P corresponding points E, F on lathe tool 2 on each shaft section
F-z
E-4) maximum z
MaxDuring with the each feeding of lathe tool rectilinear edge NM have 20% overlapping, the feeding number of times of lathe tool 2 is pressed n=(z during the turning helicla flute
Max/ 3.2+1) round the amount of feeding z of lathe tool 2 on each shaft section
0=z
F-z
E-4)/n, divide n feeding, during each feeding on the lathe tool 2 point P press Z axle feed value calculating X-axis value, i.e. X=a-sqrt (R
a 2-Z
2), the establishment numerical control program makes rectilinear edge NM go out helicla flute part between each helix on left side helicoid and the right side helicoid and E and the F along the tangential layering turning of this anchor ring.
Change from 201.68mm to 218.40mm by step-length 0.2mm, anchor ring radius R, repeat said process, radially layering turning goes out the helicla flute between each a series of helix on the left and right side helicoid and the left and right sides helicoid, obtains helical surface of enveloping worm.
Claims (7)
1. the method for turning of helical surface of enveloping worm comprises enveloping worm (1), lathe tool (2), worm axis (3) and place planar S thereof, and the tooth top anchor ring of enveloping worm (1) and the radius of tooth root anchor ring are respectively R
aAnd R
f, its center of circle O
2In planar S, the intersection point of enveloping worm (1) throat's mid-plane and worm axis (3) is O, OO
2Centre-to-centre spacing a for enveloping worm pair, it is characterized in that, during the helicoid of turning enveloping worm (1), the left point of a knife N and the right point of a knife M of lathe tool (2) move on the both direction that is parallel and perpendicular to worm axis (3) with lathe tool (2) in planar S all the time, calculate according to theory, obtain a left side on the anchor ring that enveloping worm (1) helicla flute is R at radius, the corresponding points E of right side helicoid on the disalignment cross section, F, continuous swivel becket surface-worm (1), make the corresponding points E on the disalignment cross section, F constantly forwards centre-to-centre spacing a one side in the planar S to, adjust the correspondence position of lathe tool (2) on the both direction that is parallel and perpendicular to worm axis (3), make the corresponding points E on the left point of a knife N turning disalignment cross section, and then lathe tool (2) turning goes out helix and part helicla flute on the helicoid of left side; Continuous rotation along with enveloping worm (1), corresponding points E on the disalignment cross section, F constantly forward centre-to-centre spacing a one side in the planar S to, adjust the correspondence position of lathe tool (2) on the both direction that is parallel and perpendicular to worm axis (3), make blade NM go out helicla flute part between an E and the F along the tangential layering turning of this anchor ring, go out corresponding points F on the disalignment cross section until right point of a knife M turning, lathe tool (2) turning this moment goes out helix on part helicla flute and the right side helicoid, when the anchor ring radius R from tooth top anchor ring radius R
aTo tooth root anchor ring radius R
fDuring variation, lathe tool (2) radially layering turning goes out a series of helixes on helicla flute of enveloping worm (1) and the left and right helicoid thereof.
2. the method for turning of helical surface of enveloping worm according to claim 1 is characterized in that, point of a knife NM is during along the tangential layering turning of anchor ring, and turning is put E from right side helicoid point F to the left side helicoid.
3. the method for turning of helical surface of enveloping worm according to claim 1 and 2 is characterized in that, for the tooth top anchor ring enveloping worm (1) of correction is arranged, the tooth top anchor ring processing when not revising.
4. the method for turning of helical surface of enveloping worm according to claim 1 and 2, it is characterized in that, for bull ring of numbers surface-worm (1), after helicla flute of turning and helicoid thereof are finished, by a minute tooth, another helicla flute of turning and helicoid thereof are until obtaining each helicla flute and helicoid thereof.
5. the method for turning of helical surface of enveloping worm according to claim 1 and 2, it is characterized in that, for bull ring of numbers surface-worm (1), keep same anchor ring radially layered, by a minute tooth, along the tangential layering of anchor ring, each helicla flute of turning and helicoid thereof, and then, repeat the tangential layering of each anchor ring along the feeding of anchor ring radially layered, each helicla flute of turning and helicoid thereof are up to processing whole helicla flutes and the helicoid of enveloping worm (1) from the tooth top anchor ring to the tooth root anchor ring.
6. the method for turning of helical surface of enveloping worm according to claim 1 and 2 is characterized in that, reserves suitable allowance when the calculating of the left and right sides helicoid of enveloping worm (1).
7. according to the method for turning of claim 1 or 2 or 6 described helical surface of enveloping worm, it is characterized in that, the rough machining method of described method as enveloping worm (1) helicoid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102440927A CN101774029B (en) | 2009-12-28 | 2009-12-28 | Method for turning helical surface of enveloping worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102440927A CN101774029B (en) | 2009-12-28 | 2009-12-28 | Method for turning helical surface of enveloping worm |
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| CN101774029A CN101774029A (en) | 2010-07-14 |
| CN101774029B true CN101774029B (en) | 2011-11-09 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107300B (en) * | 2010-12-28 | 2013-01-02 | 上海合纵重工机械有限公司 | CNC (computerized numerical control) combined turning and grinding machine tool for four-linkage enveloping worms and processing method thereof |
| CN102335753A (en) * | 2011-10-18 | 2012-02-01 | 上海合纵重工机械有限公司 | Turning method for enveloping worm helical surface based on common numerically controlled lathe |
| CN103480918A (en) * | 2013-09-06 | 2014-01-01 | 马鞍山经纬回转支承有限公司 | Manufacturing method for double-modulus worm double-enveloping toroidal worm gear pair |
| CN103495778A (en) * | 2013-10-14 | 2014-01-08 | 贵州中电振华精密机械有限公司 | Machining method for high-precision straight outline ring surface worm gear pair |
| CN104384621A (en) * | 2014-09-10 | 2015-03-04 | 张光辉 | Processing and detecting method of arbitrary continuous revolving body helicoid |
| CN106270812B (en) * | 2016-08-30 | 2018-08-03 | 中钢集团西安重机有限公司 | A kind of method of lathe in machining helical surface of enveloping worm |
| CN106825710B (en) * | 2017-04-05 | 2018-08-31 | 中国农业大学 | The milling method of enveloping worm hob spiral chip flute |
| CN106825711B (en) * | 2017-04-05 | 2018-10-16 | 中国农业大学 | The method for milling of enveloping worm hob spiral chip flute |
| CN107900379A (en) * | 2017-09-30 | 2018-04-13 | 武汉船用机械有限责任公司 | A kind of processing method of helicla flute |
| CN108031930A (en) * | 2017-11-30 | 2018-05-15 | 北京工业大学 | The application process of enveloping worm error correction card |
| CN109955039B (en) * | 2018-12-28 | 2020-12-18 | 天津航天长征火箭制造有限公司 | Large-diameter clamp machining method with precision groove |
| CN109940172B (en) * | 2019-04-08 | 2021-04-06 | 宝鸡忠诚精密数控设备有限责任公司 | Method for machining aviation shortcut plug inner trilinear through lathe |
| CN110434357B (en) * | 2019-07-09 | 2021-09-10 | 中国航发哈尔滨东安发动机有限公司 | Numerical control machining method for high-temperature alloy labyrinth sealing parts |
| CN113941741B (en) * | 2021-11-16 | 2022-08-05 | 天津理工大学 | Processing method of homogenization allowance curved surface of multi-head double-conical enveloping worm |
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