CN102145402B - One-time clamping four-shaft linkage rotary milling molding method for numerical control blade roots - Google Patents
One-time clamping four-shaft linkage rotary milling molding method for numerical control blade roots Download PDFInfo
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- CN102145402B CN102145402B CN 201010551545 CN201010551545A CN102145402B CN 102145402 B CN102145402 B CN 102145402B CN 201010551545 CN201010551545 CN 201010551545 CN 201010551545 A CN201010551545 A CN 201010551545A CN 102145402 B CN102145402 B CN 102145402B
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Abstract
The invention provides a one-time clamping four-shaft linkage rotary milling molding method for numerical control blade roots. The method can effectively reduce the field debugging workload of workers and improve the processing efficiency; and a blade root molding cutter is not needed, so that the cutter loss is reduced and the processing cost is reduced. A four-shaft horizontal processing centeris adopted, and the blade root profile processing cutter is a big spiral angle dense teeth milling cutter. The method comprises the following processing steps of: (1) setting a processing programmingorigin in a blade root UG model of a gas compressor; (2) calculating cutter loci of each plane and each curved surface of blade roots according to the processing programming origin, and generating a cutter location file; (3) measuring the position of the processing programming origin relative to the rotary center of a horizontal lathe on site, and obtaining values of X axis and Z axis between thetwo points; and (4) inputting the X-axis and Z-axis values of the on-site measured processing programming center origin relative to the rotary center of the horizontal lathe to the software of a horizontal rotary milling program conversion system, calculating an NC code file of the rotating cutter locus relative to the lathe, and performing profile processing of the blade roots of the gas compressor.
Description
Technical field
The present invention relates to blade digital control processing method technical field, be specially the four-axle linked revolution milling of the disposable clamping of a kind of numerical control blade blade root forming method.
Background technology
Machining center is efficient, high-precision numerical control machine, four horizontal Machining centers have tool magazine, and it can exchange process tool automatically, and workbench is numerical control turntable, in clamping of workpiece, can realize the processing of a plurality of machined surfaces by automatic tool changer, workbench rotation.General four horizontal Machining centers are mainly processed blade root and the length overall of blade, frock clamp is placed on the inconsistent (see figure 1) in position on the workbench at every turn in reality processing, and the numerical control program center 1 of establishment does not overlap with the centre of gyration 2 of workbench 3, generally can only combine with the setting of B axle commentaries on classics 0,90,180,270 angles and work coordinate system and adjust the processing of finishing product, 4 is the workbench end face among Fig. 1, and 5 is the root center line.The blade root of compressor blade is the dovetail header structure, it is interior, back of the body working face is not parallel, be an angle, can reduce workman's field adjustable workload though adopt blade root moulding cutter (see figure 2) directly to process the blade root profile, accomplish disposable clamping processing, but the work in-process tool wear is big, the processing cost height, the surface roughness of blade root is relatively poor.For improving the working face precision, adopt the close tooth milling cutter of large helix angle φ 32(end face mill R, Fig. 3) finish-milling working face, workpiece needs anglec of rotation processing when finish-milling, though lathe can arbitrarily angledly rotate, but because the blade programming initial point that is contained in the anchor clamps does not overlap with the centre of gyration of lathe, there is a deviate, and the position of each clamping tool is also different, the a collection of blade of every processing, deviate just changes once, and because the existence of deviate, actual Working position just with numerical control program in cutter rail coordinate points inconsistent, make that the workman need do a large amount of field adjustables before processing, working (machining) efficiency is low, and the blade root profile quality of processing also can not get guaranteeing that 6 is the square chest end face, 7 are the programming initial point, 8 is the root center line.
Summary of the invention
At the problems referred to above, the invention provides the four-axle linked revolution milling of the disposable clamping of a kind of numerical control blade blade root forming method, it can effectively reduce workman's field adjustable workload, improves working (machining) efficiency; Do not need to adopt blade root moulding cutter, thereby reduce the cutter loss, cut down finished cost.
Its technical scheme is such, and it adopts four horizontal Machining centers, and blade root profile process tool adopts the close tooth milling cutter of large helix angle, and it is characterized in that: it comprises following procedure of processing:
1, in compressor blade blade root UG model, the machining prgraming initial point is set;
2, calculate the cutter path of each plane of blade root and curved surface according to described machining prgraming initial point, and generate cutter location file (* .cls);
3, workman's in-site measurement machining prgraming center origin draws the X-axis between 2, the value of Z axle with respect to the position of the horizontal machine tool centre of gyration;
4, the machining prgraming center origin of described in-site measurement is imported horizontal revolving with respect to X-axis, the Z axle value of the horizontal machine tool centre of gyration and mill program conversion system software, calculated with respect to the cutter path NC code file in the machine tool rotary by software, carry out the profile processing of compressor blade blade root.
It is further characterized in that: when there is B axle zero drift phenomenon in lathe, in compressor blade blade root UG model the B deviate is set.
The four-axle linked revolution milling of the disposable clamping of a kind of numerical control blade blade root of the present invention forming method, it adopts the close tooth milling cutter of large helix angle to carry out the profile processing of blade root, it can effectively reduce the debugging work load that the scene adds man-hour, improves working (machining) efficiency greatly, and guarantees the blade processing quality.
Description of drawings
Fig. 1 is positioned over position view on the workbench for frock clamp in the actual processing;
Fig. 2 is for processing the blade root schematic diagram with blade root moulding cutter;
Fig. 3 is for adopting the close tooth milling cutter processing of large helix angle blade root schematic diagram;
Fig. 4 is for using the inventive method processing blade root profile process chart.
The specific embodiment
See Fig. 3, Fig. 4, processing method of the present invention, four horizontal Machining centers are adopted in its blade root processing, and it is blade root circular arc finish-milling cutter that cutter adopts the close tooth milling cutter 9,10 of large helix angle, and it comprises the following procedure of processing of the heart:
1, in compressor blade blade root UG model, the machining prgraming initial point is set;
2, calculate the cutter path of each plane of blade root and curved surface according to described machining prgraming initial point, and generate cutter location file (* .cls);
3, workman's in-site measurement machining prgraming center origin draws the X-axis between 2, the value of Z axle with respect to the position of the horizontal machine tool centre of gyration;
4, the machining prgraming center origin of described in-site measurement is imported horizontal revolving with respect to X-axis, the Z axle value of the horizontal machine tool centre of gyration and mill program conversion system software, calculated with respect to the cutter path NC code file in the machine tool rotary by software, be transported in the corresponding horizontal machine tool, carry out the profile processing of compressor blade blade root.
Claims (1)
1. the four-axle linked revolution milling of the disposable clamping of numerical control blade blade root forming method, it adopts four horizontal Machining centers, and blade root profile process tool adopts the close tooth milling cutter of large helix angle, and it is characterized in that: it comprises following procedure of processing:
⑴ arrange the machining prgraming initial point in compressor blade blade root UG model;
⑵ calculate the cutter path of each plane of blade root and curved surface according to described machining prgraming initial point, and generate cutter location file (* .cls);
⑶ workman's in-site measurement machining prgraming initial point draws the X-axis between 2, the value of Z axle with respect to the position of the horizontal machine tool centre of gyration;
⑷ import horizontal revolving with the machining prgraming initial point of described in-site measurement with respect to X-axis, the Z axle value of the horizontal machine tool centre of gyration and mill program conversion system software, calculated with respect to the cutter path NC code file in the machine tool rotary by software, carry out the profile processing of compressor blade blade root; When there is B axle zero drift phenomenon in lathe, in compressor blade blade root UG model, the B deviate is set.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010551545 CN102145402B (en) | 2010-11-20 | 2010-11-20 | One-time clamping four-shaft linkage rotary milling molding method for numerical control blade roots |
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| CN 201010551545 CN102145402B (en) | 2010-11-20 | 2010-11-20 | One-time clamping four-shaft linkage rotary milling molding method for numerical control blade roots |
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| CN102145402A CN102145402A (en) | 2011-08-10 |
| CN102145402B true CN102145402B (en) | 2013-09-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104057129A (en) * | 2014-07-11 | 2014-09-24 | 二重集团（德阳）重型装备股份有限公司 | Method for finely processing and milling large helical surface |
| CN107570807A (en) * | 2017-10-12 | 2018-01-12 | 无锡透平叶片有限公司 | It is a kind of to replace the method for rough milling shaping tooth form knife rough milling blade root tenon tooth |
| CN109434470A (en) * | 2018-11-29 | 2019-03-08 | 伯恩高新科技（惠州）有限公司 | A kind of process equipment and method of fan blade |
| CN113319340B (en) * | 2021-06-03 | 2022-08-02 | 南通中能机械制造有限公司 | Machining process for milling mushroom-shaped blade root by using horizontal machining center |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR960704667A (en) * | 1993-09-29 | 1996-10-09 | 디터 클리스트·게르하르트 퀼 | PROCESS FOR MILLING A TURBINE BLADE SECTION EXTENDING ALONG MAIN AXIS |
| CN101066570B (en) * | 2007-05-18 | 2012-01-04 | 云南大为化工装备制造有限公司 | Numerically controlled process of cutting spatial curved surface for inserting inclined pipe to barrel |
| CN100548549C (en) * | 2008-03-26 | 2009-10-14 | 西北工业大学 | Multiple curved faces island five-axis helical method for processing |
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Address after: 214174 Huishan Road, Huishan Economic Development Zone, Jiangsu, No. 1800, No. Applicant after: Wuxi Turbine Blade Co., Ltd. Address before: Nanchang District 214023 in Jiangsu province Wuxi City Qingyang Road No. 305 Applicant before: Wuxi Turbine Blade Co., Ltd. |
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