CN105328273A - Adaption grinding method for circular-arc end tooth - Google Patents
Adaption grinding method for circular-arc end tooth Download PDFInfo
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- CN105328273A CN105328273A CN201510811305.5A CN201510811305A CN105328273A CN 105328273 A CN105328273 A CN 105328273A CN 201510811305 A CN201510811305 A CN 201510811305A CN 105328273 A CN105328273 A CN 105328273A
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- tooth
- height
- arc end
- emery wheel
- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/02—Lapping gear teeth
- B23F19/025—Lapping bevel gears by making use of a correspondingly shaped counterpart
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- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention discloses an adaption grinding method for a circular-arc end tooth. The adaption grinding method comprises the following steps: I, analyzing a standard component; II, determining the number of half tooth pitches of the standard component: on the same section of plane of the circular-arc end tooth, taking a tooth surface as a motionless surface, dotting at least two points on each tooth surface, and constructing circles by using the at least two points with the points of other tooth surfaces; evaluating the circle with the best circular degree constructed by two tooth surface points, obtaining the number of half tooth pitches, included by a grinding wheel, of the standard component during processing; according to the obtained the number of half tooth pitches included by the grinding wheel and the early basic information, calculating the two most important parameters of the circular-arc end tooth, wherein the two parameters are a radius of the grinding wheel on a pitch diameter plane and the distance between the center of a part and the center of the grinding wheel; III, carrying out match grinding adjustment for the tooth surfaces; IV, carrying out match grinding adjustment for the tooth addendum and the full height of tooth; adjusting the contour position of the grinding wheel by adjusting the position of the coordinate point of a grinding wheel dresser. The adaption grinding method has the advantages that the interchangeability processing of the circular-arc end tooth is realized, and the internal turnover processing cost of aviation enterprises is reduced.
Description
Technical field
The present invention relates to aviation processing technique field, is the adaptive processing method being mainly used in aero-engine rotatable parts specifically.
Background technology
The unit that existing Aviation Enterprise possesses circular arc end tooth grinding technique has a lot, and owing to playing the circular arc end tooth class part of joint control effect, uniform requirement circular arc end tooth structure will realize the exchange in industry, and the circular arc end tooth that namely different manufacturers is produced can be assembled mutually.But because the overall size of end tooth structure, form and position tolerance, gears meshing all require high, also there is very big-difference in the circular arc end tooth equipment of each company and processing conditions, in the process of exchanging, even if grasp accurate machining parameter and the dimension information of interchange standard part comprehensively, be also difficult to the exchange realizing standard component.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide the adaptive method for grinding of a kind of circular arc end tooth, concrete technical scheme is as follows:
The adaptive method for grinding of a kind of circular arc end tooth, step is as follows:
One, standard component analysis
The number of teeth of measurement standard part, part height, circular arc end tooth external diameter, tooth are long;
Two, half tooth pitch number of confirmed standard part
On the same pitch plane of circular arc end tooth, with the flank of tooth 0 for surface of no motion, each flank of tooth is at least made a call to 2 points and is constructed circle respectively with the point of other flank of tooth, evaluate the circle that two best flank of tooth points of circularity construct, according to the flank of tooth quantity of the flank of tooth 0 to the flank of tooth of circularity the best, draw the half tooth pitch number that this standard component contains at the emery wheel adding man-hour; The essential information in the half tooth pitch number contained according to the emery wheel obtained and early stage, can extrapolate other numerical value of circular arc end tooth,
(1) half of circular arc end tooth external diameter;
(2) tooth is long;
(3) mean radius of gear ring;
(4) number of teeth of shaft joint;
(5) half tooth pitch number of emery wheel containing;
(6) 180 ° of half deducting emery wheel and contain the angle of circular arc end tooth;
(7) radius of emery wheel in pitch diameter plane;
(8) distance at Central of the parts and emery wheel center;
Most important two parameters in processing are drawn: the radius of emery wheel in pitch diameter plane according to above data; The distance at Central of the parts and emery wheel center;
Three, tooth surface fitting matching match grinding adjustment
After preliminary parameter is determined, whether correct in order to detect the flank of tooth, after match grinding part processing certain depth, with standard component, dyeing inspection is carried out to match grinding part, thus the numerical value of accurate adjustment grinding wheel radius, centre-to-centre spacing and pressure angle, make its dyeing inspection area reach more than 95;
Four, height of teeth top and the adjustment of whole depth match grinding
After the double wedge of circular arc end tooth and recessed tooth coordinate, the pitch plane in its contact height centre position is height of teeth top to the distance of end tooth end face.When Machining Arc end tooth stamper, detected value=(after double wedge part height+recessed tooth part height-assembling height) ÷ 2 of height of teeth top; Due to before match grinding, can by needing two standard component assemblings of match grinding, draw the height of teeth top numerical value of standard component, can this standard component as " stamper ", so when match grinding, detect the height of teeth top of the rear height-stamper standard component of height of teeth top numerical value=double wedge part height+recessed tooth part height-assembling;
After emery wheel curvature and emery wheel center are determined to the centre-to-centre spacing of Central of the parts, the factor affecting height of teeth top is the outline position of emery wheel, and the mode adjusting the outline position of emery wheel is the position by adjustment dresser coordinate points.
The mode of the outline position of adjustment emery wheel is the position by adjustment dresser coordinate points, and concrete grammar is: adjust height of teeth top and the whole depth of circular arc end tooth by the coordinate points Base value of adjustment X-axis, Y-axis.
Advantage of the present invention is: the interchangeability processing realizing circular arc end tooth, reduces Aviation Enterprise inside turnover processing charges.
Accompanying drawing explanation
Fig. 1 is double wedge standard component photo;
Fig. 2 is structure circle schematic diagram;
Fig. 3 is the painted situation schematic diagram of circular arc end tooth;
Fig. 4 is circular arc end tooth height of teeth top instrumentation plan;
Fig. 5 is recessed tooth emery wheel profile diagram;
Fig. 6 is dresser coordinate points schematic diagram.
Detailed description of the invention
The adaptive grinding technique of circular arc end tooth can be divided into standard component analysis, half tooth pitch number of confirmed standard part, the adjustment of tooth surface fitting match grinding, height of teeth top and whole depth match grinding adjustment four-stage.Below for certain standard component, the match grinding part that adaptive grinding is corresponding with it.
One, standard component analysis
Standard component with formal part, be with two pieces be a pair simultaneous, i.e. double wedge and recessed tooth.Herein for double wedge standard component (Fig. 1), (identical with recessed tooth standard component) recessed tooth match grinding part that adaptive grinding one coordinates with it.
First all sizes of this standard component and parameter are all ignorant, but can obtain the information of this standard component in table 1 from observation and actual measurement:
Table 1 standard component essential information
| Profile of tooth | Double wedge |
| Number N of teeth | 36 |
| Part height H | 60.177 |
| Circular arc end tooth outer diameter D | φ248 |
| The long F of tooth | 23 |
These essential informations are determined in the parameter of adapter all very important below.
Two, half tooth pitch number of confirmed standard part
During processing adapter, first should carry out Preliminary detection to standard component.The tooth profile parameter of circular arc end tooth and work-in parameters all cannot be measured accurately, or cannot measure, so standard component is carried out to the main purpose of Preliminary detection, be obtain this standard component process time emery wheel contain half tooth pitch number be how many, thus determine match grinding part emery wheel contain half tooth pitch number be how many.
The number of teeth due to this standard component is 36 (even numbers), and the half tooth pitch number that so directly can obtain emery wheel containing is odd number.Use three coordinate measuring machine again, on the same pitch plane of circular arc end tooth, with the flank of tooth 0 for surface of no motion, each flank of tooth at least makes a call to 2 points (be a flank of tooth by the flank of tooth that annular groove disconnects), respectively with the flank of tooth 1, the flank of tooth 2 ... on some structure circle, evaluate the circle (Fig. 2) that two best flank of tooth points of circularity construct.
The flank of tooth 0 and the flank of tooth 1, the flank of tooth 2, the flank of tooth 3, the flank of tooth 4 are carried out circular structure respectively in table 2, select its flank of tooth 0 and the flank of tooth 2 construct round circularity for best, therefore show that the half tooth pitch number that this standard component contains at the emery wheel adding man-hour is 19.
Table 2 constructs the circularity situation of circle
| Structure circle | Circularity |
| The flank of tooth 0 and the flank of tooth 1 | 0.1 |
| The flank of tooth 0 and the flank of tooth 2 | 0.01 |
| The flank of tooth 0 and the flank of tooth 3 | 0.1 |
| The flank of tooth 0 and the flank of tooth 4 | 0.5 |
The essential information in the half tooth pitch number contained according to the emery wheel obtained and early stage, other numerical value of circular arc end tooth can be extrapolated, following formula:
(1) half of circular arc end tooth external diameter
(2) the long F=23 of tooth
(3) the mean radius A=A of gear ring
0-0.5F=124-0.5 × 23=112.5
(4) number N of teeth=36 of shaft joint
(5) half tooth pitch number n of emery wheel containing
x=19
(6) 180 ° of half deducting emery wheel and contain the angle of circular arc end tooth
(7) radius of emery wheel in pitch diameter plane
(8) distance at Central of the parts and emery wheel center
Draw most important two parameters in processing: the radius of emery wheel in pitch diameter plane is 122.7722; The distance at Central of the parts and emery wheel center is 166.5211.
(3) tooth surface fitting matching match grinding adjustment
After preliminary parameter is determined, whether correct in order to detect the flank of tooth, after match grinding part processing certain depth, with standard component, dyeing inspection is carried out to match grinding part, thus the numerical value of accurate adjustment grinding wheel radius r, centre-to-centre spacing S and pressure angle, make its dyeing inspection area reach more than 95, painted situation (Fig. 3) point 8 kinds of situations, wherein A, B, C, D, E, F and G are painted underproof figures, and H is painted optimum intersection figure.
A figure is called tooth root painted (painted outside gear ring), concerning recessed tooth element, is that the distance of emery wheel center and Central of the parts is too small and produce.B figure is called crown painted (painted inside gear ring), concerning recessed tooth element, is that the distance of emery wheel center and Central of the parts is excessive and produce.The pressure angle of C figure emery wheel causes too greatly.The pressure angle of D figure emery wheel is too little to be caused.E figure is the radius of curvature of emery wheel too small (to recessed tooth element), and improving painted measure is need to increase emery wheel external diameter, strengthens the distance of emery wheel center and Central of the parts, to compensate the change of transverse tooth thickness simultaneously.F figure is the radius of curvature of emery wheel excessive (to recessed tooth element), and improving painted measure is need to reduce grinding wheel radius, reduces the distance of emery wheel center and Central of the parts, to compensate the change of transverse tooth thickness simultaneously.G figure is painted too narrow, this is because side trimmer is biased too little, on emery wheel, repair a recessed taper seat when conditioning arm swings, projection in the middle part of the curved tooth causing recessed tooth element, only painted in the middle part of curved tooth by standard component check result, adjustment numerical value will determine by rule of thumb.
(4) height of teeth top and the adjustment of whole depth match grinding
After the double wedge of circular arc end tooth and recessed tooth coordinate, the pitch plane in its contact height centre position is height of teeth top to the distance of end tooth end face.When Machining Arc end tooth stamper, detected value (Fig. 4)=(after double wedge part height+recessed tooth part height-assembling height) ÷ 2 of height of teeth top.Due to before match grinding, we can by needing two standard component assemblings of match grinding, draw the height of teeth top numerical value (being 2.6795 after testing) of standard component, can this standard component as " stamper " (i.e. original disc), so when match grinding, detect the height of teeth top of the rear height-stamper standard component of height of teeth top numerical value=double wedge part height+recessed tooth part height-assembling.
After emery wheel curvature and emery wheel center are determined to the centre-to-centre spacing of Central of the parts, the factor affecting height of teeth top is the outline position of emery wheel (Fig. 5), and the mode adjusting the outline position of emery wheel is the position by adjustment dresser coordinate points (Fig. 6).
Height of teeth top and the whole depth of circular arc end tooth is adjusted by the coordinate points Base value (table 3) of adjustment X-axis, Y-axis.When Y-axis positive direction adjusts, the whole profile of emery wheel is reduced by reconditioning quality, and profile declines, then whole depth and height of teeth top increase, otherwise during the adjustment of Y-axis negative direction; When X axis positive direction adjusts, grinding wheel side facial contour is reduced by reconditioning quality, and profile broadens, then whole depth inconvenience, height of teeth top increases.
Table 3 German BLOHM company trimmer coordinate column
| Geometry | Wear | Base | |
| Length1 (Y-axis) | 71.766 | 0.0 | 167.087 |
| Length2 (X-axis) | 37.834 | 0.0 | 768.863 |
| Length3 (Z axis) | 0.000 | 0.0 | -339.146 |
Brief summary
The exchange in order to meet circular arc end tooth class part is not only in the adaptive grinding of circular arc end tooth, portion of techniques select also can in reality processing when video disc trimmer rapid wear time carry out adjustment and apply.
Claims (2)
1. the adaptive method for grinding of circular arc end tooth, is characterized in that step is as follows:
One, standard component analysis
The number of teeth of measurement standard part, part height, circular arc end tooth external diameter, tooth are long;
Two, half tooth pitch number of confirmed standard part
On the same pitch plane of circular arc end tooth, with the flank of tooth 0 for surface of no motion, each flank of tooth is at least made a call to 2 points and is constructed circle respectively with the point of other flank of tooth, evaluate the circle that two best flank of tooth points of circularity construct, according to the flank of tooth quantity of the flank of tooth 0 to the flank of tooth of circularity the best, draw the half tooth pitch number that this standard component contains at the emery wheel adding man-hour; The essential information in the half tooth pitch number contained according to the emery wheel obtained and early stage, can extrapolate other numerical value of circular arc end tooth,
(1) half of circular arc end tooth external diameter;
(2) tooth is long;
(3) mean radius of gear ring;
(4) number of teeth of shaft joint;
(5) half tooth pitch number of emery wheel containing;
(6) 180 ° of half deducting emery wheel and contain the angle of circular arc end tooth;
(7) radius of emery wheel in pitch diameter plane;
(8) distance at Central of the parts and emery wheel center;
Most important two parameters in processing are drawn: the radius of emery wheel in pitch diameter plane according to above data; The distance at Central of the parts and emery wheel center;
Three, tooth surface fitting matching match grinding adjustment
After preliminary parameter is determined, whether correct in order to detect the flank of tooth, after match grinding part processing certain depth, with standard component, dyeing inspection is carried out to match grinding part, thus the numerical value of accurate adjustment grinding wheel radius, centre-to-centre spacing and pressure angle, make its dyeing inspection area reach more than 95;
Four, height of teeth top and the adjustment of whole depth match grinding
After the double wedge of circular arc end tooth and recessed tooth coordinate, the pitch plane in its contact height centre position is height of teeth top to the distance of end tooth end face.When Machining Arc end tooth stamper, detected value=(after double wedge part height+recessed tooth part height-assembling height) ÷ 2 of height of teeth top; Due to before match grinding, can by needing two standard component assemblings of match grinding, draw the height of teeth top numerical value of standard component, this standard component as " stamper ", so when match grinding, detect the height of teeth top of the rear height-stamper standard component of height of teeth top numerical value=double wedge part height+recessed tooth part height-assembling;
The mode of the outline position of adjustment emery wheel is the position by adjustment dresser coordinate points.
2. method according to claim 1, it is characterized in that: the mode of the outline position of adjustment emery wheel is the position by adjustment dresser coordinate points, and concrete grammar is: adjust height of teeth top and the whole depth of circular arc end tooth by the coordinate points Base value of adjustment X-axis, Y-axis.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863105A (en) * | 2017-01-22 | 2017-06-20 | 重庆市巴山液压附件厂有限公司 | A kind of convex key block grinding technics anti-offset for scout car jacking sleeve |
| CN108361348A (en) * | 2018-03-23 | 2018-08-03 | 中国科学院工程热物理研究所 | A kind of circular arc end tooth structure and the power turbine with the circular arc end tooth structure |
| CN112417593A (en) * | 2020-11-18 | 2021-02-26 | 西北工业大学 | Optimization method for connection assembly mounting angle of circular arc end teeth of aircraft engine |
| CN114719806A (en) * | 2022-04-28 | 2022-07-08 | 中国航发南方工业有限公司 | Digital measuring method for arc end teeth |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733485A (en) * | 2010-02-11 | 2010-06-16 | 西南交通大学 | Method for machining tooth profile of circular arc end tooth |
| CN101733482A (en) * | 2009-12-22 | 2010-06-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for digital control processing of arc-shaped end teeth based on calibration of machining accuracy indexes |
| CN102749193A (en) * | 2012-07-09 | 2012-10-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Colouring examination method for high-precision central-driving bevel gear |
| CN102950339A (en) * | 2012-11-14 | 2013-03-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control grinding method for titanium alloy material of circular arc end tooth structure |
| US20130089386A1 (en) * | 2011-10-07 | 2013-04-11 | Zhang-Hua Fong | Variable-Tooth-Thickness Worm-Type Tool and Method For Using The Same To Fabricate Gears |
| CN103586546A (en) * | 2013-11-05 | 2014-02-19 | 陈谦 | Method and device for machining tooth profile of inner gear with drum-shaped worm tool |
| DE102013217755A1 (en) * | 2013-09-05 | 2015-03-05 | Hirschvogel Umformtechnik Gmbh | Coupling arrangement, coupling element and method for producing a coupling element |
| CN104460500A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Machining method of special-shaped arc |
-
2015
- 2015-11-20 CN CN201510811305.5A patent/CN105328273B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733482A (en) * | 2009-12-22 | 2010-06-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for digital control processing of arc-shaped end teeth based on calibration of machining accuracy indexes |
| CN101733485A (en) * | 2010-02-11 | 2010-06-16 | 西南交通大学 | Method for machining tooth profile of circular arc end tooth |
| US20130089386A1 (en) * | 2011-10-07 | 2013-04-11 | Zhang-Hua Fong | Variable-Tooth-Thickness Worm-Type Tool and Method For Using The Same To Fabricate Gears |
| CN102749193A (en) * | 2012-07-09 | 2012-10-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Colouring examination method for high-precision central-driving bevel gear |
| CN102950339A (en) * | 2012-11-14 | 2013-03-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control grinding method for titanium alloy material of circular arc end tooth structure |
| DE102013217755A1 (en) * | 2013-09-05 | 2015-03-05 | Hirschvogel Umformtechnik Gmbh | Coupling arrangement, coupling element and method for producing a coupling element |
| CN103586546A (en) * | 2013-11-05 | 2014-02-19 | 陈谦 | Method and device for machining tooth profile of inner gear with drum-shaped worm tool |
| CN104460500A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Machining method of special-shaped arc |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863105A (en) * | 2017-01-22 | 2017-06-20 | 重庆市巴山液压附件厂有限公司 | A kind of convex key block grinding technics anti-offset for scout car jacking sleeve |
| CN106863105B (en) * | 2017-01-22 | 2019-02-12 | 重庆市巴山液压附件厂有限公司 | A kind of convex key block grinding technics anti-offset for scout car jacking sleeve |
| CN108361348A (en) * | 2018-03-23 | 2018-08-03 | 中国科学院工程热物理研究所 | A kind of circular arc end tooth structure and the power turbine with the circular arc end tooth structure |
| CN108361348B (en) * | 2018-03-23 | 2023-11-17 | 中国科学院工程热物理研究所 | Arc end tooth structure and power turbine with same |
| CN112417593A (en) * | 2020-11-18 | 2021-02-26 | 西北工业大学 | Optimization method for connection assembly mounting angle of circular arc end teeth of aircraft engine |
| CN112417593B (en) * | 2020-11-18 | 2024-02-23 | 西北工业大学 | Optimization method for connection assembly installation angle of arc end teeth of aero-engine |
| CN114719806A (en) * | 2022-04-28 | 2022-07-08 | 中国航发南方工业有限公司 | Digital measuring method for arc end teeth |
| CN114719806B (en) * | 2022-04-28 | 2024-03-19 | 中国航发南方工业有限公司 | Digital measuring method for arc end teeth |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |