CN102091908B - Numerical control machining method for sector section and annular section parts - Google Patents
Numerical control machining method for sector section and annular section parts Download PDFInfo
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- CN102091908B CN102091908B CN2010106165512A CN201010616551A CN102091908B CN 102091908 B CN102091908 B CN 102091908B CN 2010106165512 A CN2010106165512 A CN 2010106165512A CN 201010616551 A CN201010616551 A CN 201010616551A CN 102091908 B CN102091908 B CN 102091908B
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Abstract
The invention discloses a numerical control machining method for sector section and annular section parts. In the numerical control machining method, a single part is clamped on a fixture, and a zero-point position of a numerical control program is not set at a central axis of a circular arc surface; the part and the fixture can be placed at a position where the part and the fixture can be conveniently machined; a large-scale annular fixture or a large-scale machine tool are not needed to be manufactured; large-diameter sector section and annular section parts are machined by a medium-sized numerical control machine; and the part is convenient to clamp and machine, and a numerical control program can be compiled quickly.
Description
Technical field
The invention belongs to machinery manufacturing technology field, relate to a kind of processing method of machine components, particularly a kind of fan-shaped section and ring segment part by numerical control processing method.
Background technology
At aero-engine and other manufacture field, many fan-shaped section parts are arranged, hot investment casting is adopted in these part woollen moulding, the position of processing is according to the processing needs, leave 3mm～5mm allowance, mainly process upper and lower end face, left and right side, inside and outside circle cambered surface, boss outer face and hole, its design feature is that complete fan-shaped section diameter is large, the circularity required precision of inner arc surface is high, and the clamping difficulty is large; Common numerical-control processing method is several same part family formation clampings are machined and mill processing on annular holder, the part very large to some arc diameters, need to make very large diameter fixture accordingly, not only the fixture cost is high, the manufacturing difficulty, also needs to adopt large-sized numerical control lathe and expensive large-scale milling machine.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the numerical-control processing method that the purpose of this invention is to provide a kind of large diameter fan-shaped section and ring segment part, this numerical-control processing method is the clamping single part on fixture, and the dead-center position of numerical control program is not located at the axis one of the arc surface of part, and part and fixture can be placed on the convenient position that processes, need not make large-scale annular holder and large-scale machining tool, can enough medium-sized Digit Control Machine Tool large diameter fan-shaped section of processing and ring segment part.
The numerical-control processing method of fan-shaped section of the present invention and ring segment zero year, carry out according to the following steps:
1) determine the part benchmark
First rule on the part woollen, then carry out the scribing inspection of part woollen state, then the upper and lower end face of part woollen is rough milled, the lower surface of rough milling rear part is defined as axial benchmark;
2) inner arc surface of Vehicle Processing part
The axial benchmark of part is placed on annular holder, and, to the location, bottom of the inner arc surface of part, simultaneously the upper surface of part is compressed; Vehicle Processing divides slightly, two stages of essence, 70%～80% allowance is first removed in rough turn processing, remaining allowance is removed in finish turning processing, circularity for the inner arc surface that guarantees part, need to control cutting stress, therefore, Lathe tool tip R can not be excessive, adopt R0.8mm, feed speed is controlled at 0.1～0.15mm/r;
3) exterior arc surface of the end face of the boss of NC Milling part, part and boring
I) clamping and locating element
Machining tool is selected the numerical control machining center with rotary table, draw 0 graduation mark 1 on the vertical center line of first exterior arc surface at part, fixture adopts one section conduct of intercepting annular holder to mill the fixture of processing parts, the clamping single part, the axial benchmark of part is placed on fixture, and 0 graduation mark 1 and Z axis are on same vertical plane the part centering, then, to the location, bottom of the inner arc surface of part, simultaneously the upper surface of part is compressed;
the I I) determine that coordinate figure is in Fig. 2, the S point is that part is at X, the center of circle of the circular arc on the Z coordinate plane, the T point is that rotary table is at X, pivot on the Z coordinate plane, the T point is also as coordinate zero point of X-axis and Z axis, with the angular position of 0 graduation mark 1 on Digit Control Machine Tool on part as angle zero point, the center line in hole and the angle of Z axis are β °, if worktable rotary β °, see Fig. 4, at this moment the center line in hole is will Z axis parallel, at this moment the center line in hole and Z axis distance are C, at this moment, the T point is a to the vertical range of the end face of boss, the difference of R1 and a is b, wherein, R1 is that part is at X, the center of circle of the circular arc on the Z coordinate plane is to the vertical range of the end face of boss, a is the vertical range of T point to the end face of boss, the intersection point of the end face of boss and the center line in hole is K,
The coordinate (X, Z) of the relative X of K point, Z coordinate system is:
If the K point is on the left side of Z axis, namely in the positive direction of X-axis:
X=C=(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
If the K point is on the right of Z axis, namely in the negative direction of X-axis:
X=-(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
Wherein: R is the radius of the interior circular arc of part on X, Z coordinate plane;
R1 is the vertical range of the center of circle of the circular arc of part on X, Z coordinate plane to the end face of boss;
R is coordinate the distance that zero point T order of the angle dead-center position of the interior circular arc of part on X, Z coordinate plane to X-axis and Z axis;
R1, R are given value, and r is the measured value after clamping and locating element;
I I I) numerical programming program
According to the I I) determine that the formula draw in coordinate figure mills the program of the end face of processing boss:
According to the I I) determine that the formula draw in coordinate figure mills the program of the exterior arc surface of processing parts:
Process principle: every 5 degree of the exterior arc surface of part are divided into a machining area, and each machining area is divided into 500 equal portions according to angle, processes on horizontal Four-axis NC Welding machining center;
According to the I I) determine the program of the formula draw boring in coordinate figure:
The I V) after processing parts is located parts fixation, zero point, ordered apart from the r value by T to the coordinate of X-axis and Z axis for the angle dead-center position of measuring the interior circular arc of part on X, Z coordinate plane, then select numerical control machining center, the r value is inputted Digit Control Machine Tool or specified in programming, by technical papers and machining center operating instruction, part is processed.
The numerical-control processing method of fan-shaped section of the present invention and ring segment part, clamping single part on fixture, and the dead-center position of numerical control program is not located on the axis of arc surface of part, and part and fixture can be placed on the convenient position that processes, need not make large-scale annular holder and large-scale machining tool, can process large diameter fan-shaped section and ring segment part by enough medium-sized Digit Control Machine Tools, and parts fixation and easy to process, the numerical control program establishment is quick.
Description of drawings
Fig. 1 is the front view of part;
Fig. 2 is the profile along the D-D line of Fig. 1
Fig. 3 is the profile along the C-C line of Fig. 1
Fig. 4 is the schematic diagram after the part section of Fig. 3 rotates β ° along the T point
1,0 graduation mark in figure.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Embodiment: the size of fan-shaped section part is as follows:
See Fig. 2, R1=880.28mm, R=870.28, β=15.667;
The numerical-control processing method of fan-shaped section of the present invention and ring segment part, carry out according to the following steps:
1) determine the part benchmark
First rule on the part woollen, then carry out the scribing inspection of part woollen state, then the upper and lower end face of part woollen is rough milled, the lower surface of rough milling rear part is defined as axial benchmark;
2) inner arc surface of Vehicle Processing part
The axial benchmark of part is placed on annular holder, and, to the location, bottom of the inner arc surface of part, simultaneously the upper surface of part is compressed; Vehicle Processing divides slightly, two stages of essence, 70%～80% allowance is first removed in rough turn processing, remaining allowance is removed in finish turning processing, circularity for the inner arc surface that guarantees part, need to control cutting stress, therefore, Lathe tool tip R can not be excessive, adopt R0.8mm, feed speed is controlled at 0.1～0.15mm/r;
3) exterior arc surface of the end face of the boss of NC Milling part, part and boring
I) clamping and locating element
Machining tool is selected the numerical control machining center with rotary table, draw 0 graduation mark 1 on the vertical center line of first exterior arc surface at part, fixture adopts one section conduct of intercepting annular holder to mill the fixture of processing parts, the clamping single part, the axial benchmark of part is placed on fixture, and 0 graduation mark 1 and Z axis are on same vertical plane the part centering, then, to the location, bottom of the inner arc surface of part, simultaneously the upper surface of part is compressed;
the I I) determine that coordinate figure is in Fig. 2, the S point is that part is at X, the center of circle of the circular arc on the Z coordinate plane, the T point is that rotary table is at X, pivot on the Z coordinate plane, the T point is also as coordinate zero point of X-axis and Z axis, with the angular position of 0 graduation mark 1 on Digit Control Machine Tool on part as angle zero point, the center line in hole and the angle of Z axis are β °, if worktable rotary β °, see Fig. 4, at this moment the center line in hole is will Z axis parallel, at this moment the center line in hole and Z axis distance are C, at this moment, the T point is a to the vertical range of the end face of boss, the difference of R1 and a is b, wherein, R1 is that zero year is at X, the center of circle of the circular arc on the Z coordinate plane is to the vertical range of the end face of boss, a is the vertical range of T point to the end face of boss, the intersection point of the end face of boss and the center line in hole is K,
The coordinate (X, Z) of the relative X of K point, Z coordinate system is:
If the K point is on the left side of Z axis, namely in the positive direction of X-axis:
X=C=(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
If the K point is on the right of Z axis, namely in the negative direction of X-axis:
X=-(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
Wherein: R is the radius of the interior circular arc of part on X, Z coordinate plane;
R1 is the vertical range of the center of circle of the circular arc of part on X, Z coordinate plane to the end face of boss;
R is coordinate the distance that zero point T order of the angle dead-center position of the interior circular arc of part on X, Z coordinate plane to X-axis and Z axis;
R1, R are given value, and r is the measured value after clamping and locating element;
I I I) numerical programming program
According to the I I) determine that the formula draw in coordinate figure mills the program of the end face of processing boss:
;%_NS1000_MPF
T=”T_D20”
L700
N5 G54 D1
N10 G90 G17 G0 X0 Y600 Z800 A0 B0 M03 S400
N15 B15.667
N17 TRANS X=(870.28-r)*SIN (15.667) Z=880.28-(870.28-r)*COS(15.667)：
MSG(”X=”<<$P_UIFR[$P_UIFRNUM,X,TR]<<”Z=”<<$P_UIFR[$P_UIFRNUM,Z,TR])M00
N20 GO X10
N23Y250
N27Z0
N30G01Y230F100
N40GO Z300
N45Y500
N50B-15.483
N55TRANS X=(870.28-r)*SIN(15.667)
Z=880.28-(870.28-r)*COS(15.667)
N65Y250
N75Z0
N80G01Y230F100
N85GO Z300
N90Y500
TRANS
TRAF00F
M05
M30
According to the I I) determine that the formula draw in coordinate figure mills the program of the exterior arc surface of processing parts:
Process principle: every 5 degree of the exterior arc surface of part are divided into a machining area, and each machining area is divided into 500 equal portions according to angle, processes on horizontal Four-axis NC Welding machining center;
FOR NUM=TT500
R5=R2+0.01; Each 0.01 degree that increases
A=R5
B=R5
Y0
G01X=(R-r)*SIN(β)Z=R1-(R-r)*CTS(β)F100
Y40Z=R1-(R-r) * CTS (β)+5; Cutter lifting 5mm after processing
……
ENDFOR
According to the I I) determine the program of the formula draw numer centre boring in coordinate figure:
；%_NS1000_MPF
T=”T_D20”
L700
N5G54D1
N10G90G17G0X0Y600Z800A0B0M03S400
N15B15.667
N17TRANS X=(870.28-r)*SIN(15.667)Z=880.28-(870.28-r)*COS(15.667)：
MSG(”X=”<<$P_UIFR[$P_UIFRNUM,X,TR]<<”Z=”<<$P_UIFR[$P_UIFRNUM,Z,TR])M00N20GO X10
N23Y240N27Z5
N30G01Z-7F100
N40GO Z300
N45Y500
N50B-15.483
N55TRANS X=(870.28-r)*SIN(15.667)
Z=880.28-(870.28-r)*COS(15.667)
N65Y240
N75Z5
N80G01Y-7F100
N85GO Z300
N90Y500
TRANS
TRAF00F
M05
M30
The V V) processing parts
Behind the parts fixation location, zero point, ordered apart from the r value by T to the coordinate of X-axis and Z axis for the angle dead-center position of measuring the interior circular arc of part on X, Z coordinate plane, then select numerical control machining center, the r value is inputted Digit Control Machine Tool or specified in programming, by technical papers and machining center operating instruction, part is processed.
Claims (1)
1. a fan-shaped section and ring segment part by numerical control processing method is characterized in that: carry out according to the following steps:
1) determine the part benchmark
First rule on the part woollen, then carry out the scribing inspection of part woollen state, then the upper and lower end face of part woollen is rough milled, the lower surface of rough milling rear part is defined as axial benchmark;
2) inner arc surface of Vehicle Processing part
Vehicle Processing divides slightly, two stages of essence, and 70%～80% allowance is first removed in rough turn processing, and remaining allowance is removed in finish turning processing;
3) exterior arc surface of the end face of the boss of NC Milling part, part and boring
I) clamping and locating element
The I I) determine coordinate figure
the S point is that part is at X, the center of circle of the circular arc on the Z coordinate plane, the T point is that rotary table is at X, pivot on the Z coordinate plane, the T point is also as coordinate zero point of X-axis and Z axis, with the angular position of 0 graduation mark on Digit Control Machine Tool on part as angle zero point, the center line in hole and the angle of Z axis are β °, if worktable rotary β °, at this moment the center line in hole is will Z axis parallel, at this moment the center line in hole and Z axis distance are C, at this moment, the T point is a to the vertical range of the end face of boss, the difference of R1 and a is b, wherein, R1 is that part is at X, the center of circle of the circular arc on the Z coordinate plane is to the vertical range of the end face of boss, a is the vertical range of T point to the end face of boss, the intersection point of the end face of boss and the center line in hole is K,
The coordinate (X, Z) of the relative X of K point, Z coordinate system is:
If the K point is on the left side of Z axis, namely in the positive direction of X-axis:
X=C=(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
If the K point is on the right of Z axis, namely in the negative direction of X-axis:
X=-(R-r)*SIN(β)；
Z=R1-b=R1-(R-r)*COS(β)；
Wherein: R is the radius of the interior circular arc of part on X, Z coordinate plane;
R1 is the vertical range of the center of circle of the circular arc of part on X, Z coordinate plane to the end face of boss;
R is coordinate the distance that zero point T order of the angle dead-center position of the interior circular arc of part on X, Z coordinate plane to X-axis and Z axis;
R1, R are given value, and r is the measured value after clamping and locating element;
I I I) numerical programming program
The program of the end face of processing boss is milled in establishment;
The program of the exterior arc surface of processing parts is milled in establishment;
The program of establishment boring;
The I V) processing parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106165512A CN102091908B (en) | 2010-12-31 | 2010-12-31 | Numerical control machining method for sector section and annular section parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106165512A CN102091908B (en) | 2010-12-31 | 2010-12-31 | Numerical control machining method for sector section and annular section parts |
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| CN102091908B true CN102091908B (en) | 2013-11-13 |
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| CN103028907A (en) * | 2012-11-30 | 2013-04-10 | 苏州市意可机电有限公司 | Technology for processing end cap |
| CN103056614B (en) * | 2012-12-25 | 2015-04-15 | 宜昌江峡船用机械有限责任公司 | Method for processing curved surface sector-shaped section frame |
| CN104259539A (en) * | 2014-09-22 | 2015-01-07 | 东方电气集团东方汽轮机有限公司 | Method for processing large-diameter segmental-arc feature by adopting small working table |
| CN106736268B (en) * | 2016-11-30 | 2018-08-24 | 鞍钢重型机械有限责任公司 | The processing method for cutting box-like 180 ° of arched girders |
| CN107052899B (en) * | 2017-02-24 | 2019-05-07 | 中航湖南通用航空发动机有限公司 | A kind of angular angular localization method of hole part of band |
| CN108415370B (en) * | 2018-02-07 | 2019-09-10 | 东方电气集团东方锅炉股份有限公司 | The relative position acquisition methods of arc section class workpiece on rotary table |
| CN110695623A (en) * | 2019-10-18 | 2020-01-17 | 哈尔滨汽轮机厂有限责任公司 | Process for machining fan-shaped section |
| CN114571264A (en) * | 2021-12-08 | 2022-06-03 | 中国航空工业集团公司北京航空精密机械研究所 | Clamping and processing method for outer arc surface of silicon carbide turbine outer ring |
| CN114536048A (en) * | 2021-12-08 | 2022-05-27 | 中国航空工业集团公司北京航空精密机械研究所 | Curved surface shape-following clamping and surface milling punching method for silicon carbide thin-wall flame tube |
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|---|---|---|---|---|
| US4617845A (en) * | 1983-03-29 | 1986-10-21 | Mitsubishi Jukogio Kabushiki Kaisha | Method and apparatus for working peripheral wall of hemispherical shell |
| CN1562542A (en) * | 2004-03-31 | 2005-01-12 | 沈阳工业学院 | Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids |
| CN1962145A (en) * | 2006-11-24 | 2007-05-16 | 胡梁发 | Method for processing blade form work piece and fittings dedicated therefor |
| CN101036966A (en) * | 2007-04-24 | 2007-09-19 | 江苏恒义汽配制造有限公司 | Method for processing oil seal seat of the two-segment drive bridge of the heavy automobile |
| CN101767264A (en) * | 2008-12-31 | 2010-07-07 | 沈阳黎明航空发动机(集团)有限责任公司 | NC (numerical control) processing method for special-shaped joint part |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0664486B2 (en) * | 1983-07-07 | 1994-08-22 | ファナック株式会社 | 3D curve creation method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617845A (en) * | 1983-03-29 | 1986-10-21 | Mitsubishi Jukogio Kabushiki Kaisha | Method and apparatus for working peripheral wall of hemispherical shell |
| CN1562542A (en) * | 2004-03-31 | 2005-01-12 | 沈阳工业学院 | Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids |
| CN1962145A (en) * | 2006-11-24 | 2007-05-16 | 胡梁发 | Method for processing blade form work piece and fittings dedicated therefor |
| CN101036966A (en) * | 2007-04-24 | 2007-09-19 | 江苏恒义汽配制造有限公司 | Method for processing oil seal seat of the two-segment drive bridge of the heavy automobile |
| CN101767264A (en) * | 2008-12-31 | 2010-07-07 | 沈阳黎明航空发动机(集团)有限责任公司 | NC (numerical control) processing method for special-shaped joint part |
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Application publication date: 20110615 Assignee: Shenyang Liming Fala Aviation Power Technology Engineering Co., Ltd. Assignor: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City Contract record no.: 2015210000045 Denomination of invention: Numerical control machining method for sector section and annular section parts Granted publication date: 20131113 License type: Exclusive License Record date: 20150629 |
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