CN105328273B - Adaption grinding method for circular-arc end tooth - Google Patents
Adaption grinding method for circular-arc end tooth Download PDFInfo
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- CN105328273B CN105328273B CN201510811305.5A CN201510811305A CN105328273B CN 105328273 B CN105328273 B CN 105328273B CN 201510811305 A CN201510811305 A CN 201510811305A CN 105328273 B CN105328273 B CN 105328273B
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- tooth
- arc end
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- 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 specifically mainly used in the adaptation of aero-engine rotatable parts
Processing method.
Background technology
The unit that existing Aviation Enterprise possesses circular arc end tooth grinding technique has a lot, the arc end due to playing joint control effect
Tooth class part, uniform requirement circular arc end tooth structure will realize the exchange in industry, i.e., the circular arc end tooth that different manufacturers are produced can
Mutually to assemble.But overall size, form and position tolerance due to end tooth structure, gear engagement require high, the circular arc of each company
End tooth equipment and processing conditions there is also very big difference, during exchange, even if grasping the accurate of interchange standard part comprehensively
Machined parameters and dimension information, it is also difficult to realize the exchange of standard component.
The content of the invention
To solve above-mentioned technical problem, it is an object of the invention to provide a kind of circular arc end tooth adaptation method for grinding, concrete skill
Art scheme is as follows：
A kind of circular arc end tooth is adapted to method for grinding, and step is as follows：
First, standard component analysis
The number of teeth of measurement standard part, part height, circular arc end tooth external diameter, tooth are long；
2nd, half tooth pitch number of standard component is determined
On the same pitch plane of circular arc end tooth, with the flank of tooth 0 as surface of no motion, each flank of tooth at least make a call to 2 points respectively with other
The point construction circle of the flank of tooth, evaluates the circle that two best flank of tooth points of circularity are constructed, according to the flank of tooth 0 to the optimal flank of tooth of circularity
Flank of tooth quantity, draw the standard component plus man-hour emery wheel contain half tooth pitch number；According to half tooth that the emery wheel for obtaining contains
Away from number and the essential information of early stage, other numerical value of circular arc end tooth can be extrapolated,
(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) the half tooth pitch number that emery wheel contains；
(6) 180 ° deduct the half that emery wheel contains the angle of circular arc end tooth；
(7) radius of the 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 according to data above：Radius of the emery wheel in pitch diameter plane；In part
The heart and the distance at emery wheel center；
3rd, tooth surface fitting fitting match grinding adjustment
After preliminary parameter determination, in order to detect whether the flank of tooth is correct, after match grinding part processing certain depth, standard component is used
Dyeing inspection is carried out to match grinding part, so as to accurately adjust grinding wheel radius, centre-to-centre spacing and the numerical value of pressure angle so as to dyeing inspection face
Product reaches more than 95；
4th, height of teeth top and whole depth match grinding are adjusted
After the double wedge of circular arc end tooth and concave tooth coordinate, the distance of the pitch plane in its contact height centre position to end tooth top surface
For height of teeth top.In Machining Arc end tooth stamper, detected value=(the double wedge part height+concave tooth part height-assembling of height of teeth top
÷ 2 afterwards highly)；Due to before match grinding, the tooth top of standard component can be drawn by needing two standard components of match grinding to assemble
High numerical value, can treat as " stamper ", then in match grinding the standard component, detection height of teeth top numerical value=double wedge part height+recessed
The height of teeth top of height-stamper standard component after tooth part height-assembling；
After emery wheel curvature and emery wheel center determine to the centre-to-centre spacing of Central of the parts, the factor for affecting height of teeth top is sand
The outline position of wheel, and the mode for adjusting the outline position of emery wheel is the position by adjusting dresser coordinate points.
The mode of the outline position of adjustment emery wheel is the position by adjusting dresser coordinate points, and concrete grammar is：
The height of teeth top and whole depth of circular arc end tooth are adjusted by adjusting X-axis, the coordinate points Base value of Y-axis.
It is an advantage of the invention that：The interchangeability processing of circular arc end tooth is realized, Aviation Enterprise inside turnover processing charges is reduced.
Description of the drawings
Fig. 1 is double wedge standard component photo；
Fig. 2 is construction circle schematic diagram；
Fig. 3 is that circular arc end tooth colours situation schematic diagram；
Fig. 4 is circular arc end tooth height of teeth top instrumentation plan；
Fig. 5 is concave tooth emery wheel profile diagram；
Fig. 6 is dresser coordinate points schematic diagram.
Specific embodiment
Circular arc end tooth adaptation grinding technique can be divided into standard component analysis, the half tooth pitch number that determines standard component, tooth surface fitting and match somebody with somebody
Mill adjustment, height of teeth top and whole depth match grinding adjustment four-stage.Below by taking certain standard component as an example, adaptation grinding is corresponding to match somebody with somebody
Mill part.
First, standard component analysis
Standard component, with formal part, is, i.e. double wedge and concave tooth simultaneous with two pieces as a pair.Herein with double wedge standard
As a example by part (Fig. 1), adaptation one matched (with concave tooth standard component identical) concave tooth match grinding part of grinding.
All sizes and parameter of this standard component first are all ignorant, but can be obtained from observation and actual measurement
Information to the standard component is shown in Table 1：
The standard component essential information of table 1
| 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 all critically important in the parameter for determining adapter below.
2nd, half tooth pitch number of standard component is determined
During processing adapter, it should first carry out Preliminary detection to standard component.The tooth profile parameter and work-in parameters of circular arc end tooth
All cannot accurately measure, or cannot measure, then the main purpose of Preliminary detection is carried out to standard component, be to obtain the standard
The part half tooth pitch number that emery wheel contains when processing is how many, so that it is determined that the half tooth pitch number that the emery wheel of match grinding part contains is many
It is few.
Because the number of teeth of the standard component is 36 (even numbers), then the half tooth pitch number that can directly obtain emery wheel containing is strange
Number.Three coordinate measuring machine is used again, and on the same pitch plane of circular arc end tooth, with the flank of tooth 0 as surface of no motion, each flank of tooth at least makes a call to 2
Individual point (flank of tooth disconnected by annular groove is a flank of tooth), justifies respectively with the point construction on the flank of tooth 1, the flank of tooth 2 ..., evaluates circularity
The circle (Fig. 2) that two best flank of tooth points are constructed.
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 into respectively circular structure and is shown in Table 2, select its flank of tooth 0 and tooth
It is optimal that face 2 constructs round circularity, therefore show that the standard component is 19 in the half tooth pitch number for adding the emery wheel in man-hour to contain.
Table 2 constructs the circularity situation of circle
The half tooth pitch number contained according to the emery wheel that obtains and the essential information of early stage, can extrapolate circular arc end tooth other
Numerical value, equation below：
(1) half of circular arc end tooth external diameter
(2) the long F=23 of tooth
(3) mean radius A=A of gear ring0- 0.5F=124-0.5 × 23=112.5
(4) number N of teeth=36 of shaft joint
(5) the half tooth pitch number n that emery wheel containsx=19
(6) 180 ° deduct the half that emery wheel contains the angle of circular arc end tooth
(7) radius of the emery wheel in pitch diameter plane
(8) distance at Central of the parts and emery wheel center
Draw most important two parameters in processing：Radius of the emery wheel in pitch diameter plane is 122.7722；Central of the parts
It is 166.5211 with the distance at emery wheel center.
(3) tooth surface fitting fitting match grinding adjustment
After preliminary parameter determination, in order to detect whether the flank of tooth is correct, after match grinding part processing certain depth, standard component is used
Dyeing inspection is carried out to match grinding part, so as to accurately adjust grinding wheel radius r, centre-to-centre spacing S and the numerical value of pressure angle so as to dyeing inspection
Area reaches more than 95, and 8 kinds of situations of coloring situation (Fig. 3) point, wherein A, B, C, D, E, F and G are all the underproof figures of coloring,
H is coloring optimum intersection figure.
A figures are referred to as tooth root coloring (colouring on the outside of gear ring), are emery wheel center and Central of the parts for concave tooth element
Apart from it is too small and produce.B figures are referred to as crown coloring (on the inside of gear ring colour), for concave tooth element, be emery wheel center with
The distance of Central of the parts is excessive and produce.C figures are that the pressure angle of emery wheel is caused greatly very much.D figures be the pressure angle of emery wheel too
It is little and cause.E figures are the radius of curvature too small (to concave tooth element) of emery wheel, and the measure for improving coloring is to need to increase outside emery wheel
Footpath, while the distance at emery wheel center and Central of the parts is increased, to compensate the change of transverse tooth thickness.F figures are the radius of curvature mistakes of emery wheel
Greatly (to concave tooth element), the measure for improving coloring is to need to reduce grinding wheel radius, while reducing emery wheel center with Central of the parts
Distance, to compensate the change of transverse tooth thickness.G figures are that coloring is too narrow, this is because the biasing of side trimmer is too little, when finishing arm swing
When a recessed taper seat is repaired on emery wheel, cause the curved tooth of concave tooth element central raised, only existed with standard component inspection result
Curved tooth middle part coloring, adjustment numerical value will be determined by rule of thumb.
(4) height of teeth top and whole depth match grinding are adjusted
After the double wedge of circular arc end tooth and concave tooth coordinate, the distance of the pitch plane in its contact height centre position to end tooth top surface
For height of teeth top.In Machining Arc end tooth stamper, detected value (Fig. 4)=(the double wedge part height+concave tooth part height of height of teeth top
Height after degree-assembling) ÷ 2.Because before match grinding, we can be drawn by needing two standard components of match grinding to assemble
The height of teeth top numerical value (being detected as 2.6795) of standard component, can treat as " stamper " (i.e. original disc) the standard component, then
During match grinding, the tooth top of height-stamper standard component after height of teeth top numerical value=double wedge part height+concave tooth part height-assembling is detected
It is high.
After emery wheel curvature and emery wheel center determine to the centre-to-centre spacing of Central of the parts, the factor for affecting height of teeth top is sand
The outline position (Fig. 5) of wheel, and the mode for adjusting the outline position of emery wheel is by adjusting dresser coordinate points (Fig. 6)
Position.
The height of teeth top and whole depth of circular arc end tooth are adjusted by adjusting X-axis, the coordinate points Base value (table 3) of Y-axis.Work as Y
When axial positive direction is adjusted, emery wheel whole profile is reduced by reconditioning quality, and profile declines, then whole depth and height of teeth top increase, Y-axis
Otherwise when negative direction is adjusted；When X axis positive direction is adjusted, emery wheel side profile is reduced by reconditioning quality, and profile broadens, then tooth is complete
High inconvenience, height of teeth top increases.
BLOHM companies of the Germany of table 3 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
Not only for the exchange for meeting circular arc end tooth class part, portion of techniques point also can be in reality for circular arc end tooth adaptation grinding
Application is adjusted in the processing of border when video disc trimmer rapid wear.
Claims (2)
1. a kind of circular arc end tooth is adapted to method for grinding, it is characterised in that step is as follows：
First, standard component analysis
The number of teeth of measurement standard part, part height, circular arc end tooth external diameter, tooth are long；
2nd, half tooth pitch number of standard component is determined
On the same pitch plane of circular arc end tooth, with the flank of tooth 0 as surface of no motion, each flank of tooth at least make a call to 2 points respectively with other flank of tooth
Point construction circle, the circle that two best flank of tooth points of circularity are constructed is evaluated, according to the tooth of the flank of tooth 0 to the optimal flank of tooth of circularity
Face quantity, draws the standard component in the half tooth pitch number for adding the emery wheel in man-hour to contain；According to the half tooth pitch number that the emery wheel for obtaining contains
With the essential information of early stage, other numerical value of circular arc end tooth can be extrapolated,
(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) the half tooth pitch number that emery wheel contains；
(6) 180 ° deduct the half that emery wheel contains the angle of circular arc end tooth；
(7) radius of the 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 according to data above：Radius of the emery wheel in pitch diameter plane；Central of the parts with
The distance at emery wheel center；
3rd, tooth surface fitting match grinding adjustment
After preliminary parameter determination, in order to detect whether the flank of tooth is correct, after match grinding part processing certain depth, with standard component to matching somebody with somebody
Mill part carries out dyeing inspection, so as to accurately adjust grinding wheel radius, centre-to-centre spacing and the numerical value of pressure angle so as to which dyeing inspection area reaches
To more than 95%；
4th, height of teeth top and whole depth match grinding are adjusted
After the double wedge of circular arc end tooth and concave tooth coordinate, the pitch plane in its contact height centre position to the distance of end tooth top surface is tooth
Rise, in Machining Arc end tooth stamper, the detected value of height of teeth top=(after double wedge part height+concave tooth part height-assembling
Highly) ÷ 2；Due to before match grinding, the height of teeth top of standard component can be drawn by needing two standard components of match grinding to assemble
Numerical value, treats as " stamper ", then in match grinding the standard component, detects height of teeth top numerical value=double wedge part height+concave tooth part
The height of teeth top of height-stamper standard component after highly-assembling；
The mode of the outline position of adjustment emery wheel is the position by adjusting dresser coordinate points.
2. method according to claim 1, it is characterised in that：The mode of the outline position of adjustment emery wheel is by adjusting sand
The position of wheel dresser coordinate points, concrete grammar is：Circular arc end tooth is adjusted by adjusting X-axis, the coordinate points Base value of Y-axis
Height of teeth top and whole depth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510811305.5A CN105328273B (en) | 2015-11-20 | 2015-11-20 | Adaption grinding method for circular-arc end tooth |
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| CN201510811305.5A CN105328273B (en) | 2015-11-20 | 2015-11-20 | Adaption grinding method for circular-arc end tooth |
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| CN105328273B true CN105328273B (en) | 2017-05-10 |
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| 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 |
| 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 |
| 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 |
| 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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| CN101733482B (en) * | 2009-12-22 | 2012-04-25 | 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 |
| CN101733485B (en) * | 2010-02-11 | 2012-03-14 | 西南交通大学 | Method for machining tooth profile of circular arc end tooth |
| TWI480113B (en) * | 2011-10-07 | 2015-04-11 | Nat Univ Chung Cheng | Variable tooth thickness worm type tool and processing method thereof |
| CN102749193B (en) * | 2012-07-09 | 2015-07-15 | 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 |
| CN102950339B (en) * | 2012-11-14 | 2015-01-28 | 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 |
| CN103586546B (en) * | 2013-11-05 | 2016-04-13 | 陈谦 | A kind of method and apparatus utilizing cydariform worm screw tool processes internal gear tooth |
| 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 |
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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 |