CN103706817B - A kind of Novel integral multistage hub rotor unit deep cavity process tool and method thereof - Google Patents
A kind of Novel integral multistage hub rotor unit deep cavity process tool and method thereof Download PDFInfo
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- CN103706817B CN103706817B CN201310684754.9A CN201310684754A CN103706817B CN 103706817 B CN103706817 B CN 103706817B CN 201310684754 A CN201310684754 A CN 201310684754A CN 103706817 B CN103706817 B CN 103706817B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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Abstract
The invention belongs to aero-engine manufacturing technology, be specifically related to the deep chamber of multistage hub rotor unit body or other part deep chamber process technology in aero-engine.The deep cavity configuration of involved processing includes: inner chamber comb tooth, two grades of disc of inner chamber, the inner chamber conical surface three part.Multistage hub rotor unit body is an axle journal, two hub cylinders and three single-stage blisks to be processed as an overall structure cell cube, compared with traditional structure, eliminate each axle journal conventional, between dish and hub cylinder three at connect (welding manner), compared with seam connected mode, not only eliminate a large amount of parts such as bolt, and alleviate the weight that seam brings；Compared with welding manner, decrease electron beam and weld this procedure, also reduce the risk that welding brings.The present invention, by self-control cutter, solves the deep chamber process technology of multistage hub rotor unit body.This technology can also be used for the deep chamber processing of other like parts.
Description
Technical field
The invention belongs to aero-engine manufacturing technology, be specifically related to the deep chamber of multistage hub rotor unit body or other part deep chamber process technology in aero-engine.
Background technology
Aero-engine structure develops to lightweight, integration, the direction of Composite, and following aero-engine is that intensity is high to the requirement of each parts, and good rigidity is lightweight.Novel integral multistage hub rotor unit body structure is a kind of new structure parts that modern high thrust-weight ratio aero-engine uses, compared with traditional single stage blisk, it is that as a part, axle journal, dish and hub cylinder are carried out cell cube overall processing, it is to avoid the shortcomings that single part is installed and Welding Structure is brought.New multistage hub rotor unit body structure, deep cavity configuration mainly includes inner chamber comb tooth 5, two grades of disc 6 of inner chamber, the inner chamber conical surface 7 three part.Using multistage hub rotor as a cell cube entirety, there is the advantages such as loss of weight, potentiation and raising reliability, be of great significance for improving aero engine total performance tool.
Both at home and abroad, the processing and manufacturing technology of single blisk reaches its maturity, and the processing of Novel integral multistage hub rotor unit body still belongs to the first time at home.For multistage blisk, being the most all the processing method using single part, connect in the way of bolt or welding, not only the process-cycle is long, and manufacturing cost is high.With bolts, number of parts is many, and needs substantial amounts of assembling and reclamation work；Employing is welded to connect, and the control to solder technology and welding deformation has the highest requirement, the most domestic ripe process technology the most not using the method.Multistage hub rotor unit body is on a forging blank, by overall processing such as axle journal, dish and hub cylinders out, eliminates structure and the form processings such as conventional cannelure, blade tenon root, welding, still belongs to the first time at home.Employing cell cube is processed, and will form deep chamber, deep cavity segment, use conventional processing method and universal cutter, and part deformation is very big and cannot meet design requirement.Cavity configuration deep for continuous multi-stage, the most domestic process technology also not having maturation and method.
Summary of the invention
It is an object of the invention to: find out a kind of process that can effectively process deep chamber, by self-control cutter, determine processing sequence, feed-paths and cutter, solve the deep chamber process technology of multistage hub rotor unit body, and effectively control the deformation in the course of processing, improve production efficiency, it is ensured that the deep chamber crudy of multistage hub rotor unit body and machining accuracy.
The technical scheme is that
A kind of Novel integral multistage hub rotor unit deep cavity process tool, including the first cutter the 1, second cutter the 2, the 3rd cutter 3 and the 4th cutter 4, wherein, the first cutter 1, for all deep cavity configurations of polish, its relief angle takes α=15 °～18 °；Second cutter 2, for two grades of formers of roughing inner chamber；3rd cutter 3, for two grades of formers of polish inner chamber, during the Vehicle Processing inner chamber conical surface 7, the 3rd cutter 3 anterior angle γ=8 °～10 °, the 3rd cutter 3 tool cutting edge angle 90 °～93 °；4th cutter 4, during deep cavity configuration all for roughing, its front clearance takes 8 °～10 °, and during for polish inner chamber comb tooth, its front clearance takes 14 °～16 °.
First cutter the 1, second cutter the 2, the 3rd cutter 3 and the 4th cutter 4, self-control knife tool arc radius R wants standard.
A kind of Novel integral multistage hub rotor unit deep cavity processing method, concrete procedure of processing is as follows:
Step one, use standard cutter or blade carry out roughing to part blank, and Vehicle Processing goes out inside and outside profile elementary contour, and institute's made allowance requires uniformly；
Step 2, artificial aging remove part machining stress；
Step 3, use standard cutter or blade, to Finishing Parts Machining, first process inner chamber profile, after inner chamber profile Vehicle Processing to size, reprocess profile portion；
Step 4, first machining benchmark A, B, it is ensured that the locating surface precision of polish；
Step 5, the method using reverse side Vehicle Processing, two grades of disc 6 of Vehicle Processing inner chamber, use circulation nc program, surplus is removed in layering, and with the radially incision of the second cutter 2 cutter, car goes out the left end of two grades of disc, forming-tool radially shakes out, changing the 3rd cutter 3 again, cut from the right-hand member of these two grades of disc, car goes out its left end；
Step 6, use the second cutter 2 and the 3rd cutter 3, the Vehicle Processing inner chamber conical surface 7, use the processing method identical with step 5；
Step 7, use the 4th cutter 4, Vehicle Processing inner chamber comb tooth 5；
Step 8, use the first cutter 1, connect flat all machined traces, it is ensured that the roughness of machined surface.
Beneficial effect produced by the present invention:
The part of Novel integral multistage hub rotor unit body structure is few, lightweight, is a kind of new structure parts of modern high thrust-weight ratio engine employing, can improve thrust-weight ratio and the reliability of electromotor further, be paid much attention to by aero-engine department of various countries.The overall multistage hub rotor unit body structure of type, it is that axle journal, blisk and hub cylinder (totally 6 parts) are carried out cell cube overall processing as a part, eliminate each axle journal conventional, connection (connected mode of bolt or welding is usually taken) between dish and hub cylinder, the processing quantity greatly reducing part (connects at 3, one circle is calculated by 32 holes, save 96, bolt), eliminate installation time, production efficiency is higher, has the advantages such as obvious loss of weight, potentiation and raising reliability after machining.Compared with conventional method, after using overall processing, the part process-cycle, by original 6 months, directly shortens 60 days, and cost reduces more than 80 ten thousand yuan.In terms of development angle, by accumulating experience and developing raising, after forming batch machining ability, its economic benefit is the most significant.Embedded SMA actuators that this project is summed up and control the method for machining deformation and be the most widely used in the processing of other testpieces.
Accompanying drawing explanation
Fig. 15 represents inner chamber comb tooth, 6 represents two grades of disc, 7 represents the inner chamber conical surface
Cutter for same schematic diagram in Fig. 2 course of processing
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in further detail, refers to Fig. 1 and Fig. 2.
As it is shown in figure 1, new multistage hub rotor unit body structure, deep cavity configuration mainly includes inner chamber comb tooth 5, two grades of disc 6 of inner chamber, the inner chamber conical surface 7 three part.
A kind of Novel integral multistage hub rotor unit deep cavity process tool, including the first cutter the 1, second cutter the 2, the 3rd cutter 3 and the 4th cutter 4, wherein, first cutter 1, for all deep cavity configurations of polish, its relief angle takes α=15 °～18 °, reduces the friction between finished surface and rear knife face, purpose is to increase lathe tool intensity, improves cutter life；Second cutter 2, for two grades of formers of roughing inner chamber；3rd cutter 3, for two grades of formers of polish inner chamber, during the Vehicle Processing inner chamber conical surface 7, the 3rd cutter 3 anterior angle γ=8 °～10 °, the 3rd cutter 3 tool cutting edge angle 90 °～93 °, its objective is to reduce radial force, it is to avoid part vibrates；4th cutter 4, during deep cavity configuration all for roughing, its front clearance takes 8 °～10 °, and during for polish inner chamber comb tooth, its front clearance takes 14 °～16 °, and purpose reduces the friction between cutter and machined surface and surface roughness.
First cutter the 1, second cutter the 2, the 3rd cutter 3 and the 4th cutter 4, self-control knife tool arc radius R wants standard.
A kind of Novel integral multistage hub rotor unit deep cavity processing method, concrete procedure of processing is as follows:
Step one, use standard cutter or blade carry out roughing to part blank, and Vehicle Processing goes out inside and outside profile elementary contour, and institute's made allowance requires uniformly；
Step 2, artificial aging remove part machining stress；
Step 3, use standard cutter or blade, to Finishing Parts Machining, first process inner chamber profile, after inner chamber profile Vehicle Processing to size, reprocess profile portion；
Step 4, first machining benchmark A, B, it is ensured that the locating surface precision of polish；
Step 5, the method using reverse side Vehicle Processing, two grades of disc 6 of Vehicle Processing inner chamber, use circulation nc program, surplus is removed in layering, and with the radially incision of the second cutter 2 cutter, car goes out the left end of two grades of disc, forming-tool radially shakes out, changing the 3rd cutter 3 again, cut from the right-hand member of these two grades of disc, car goes out its left end.
Step 6, use the second cutter 2 and the 3rd cutter 3, the Vehicle Processing inner chamber conical surface 7, use the processing method identical with step 5；
Step 7, use the 4th cutter 4, Vehicle Processing inner chamber comb tooth 5
Step 8, use the first cutter 1, connect flat all machined traces, it is ensured that the roughness of machined surface.
Claims (2)
1. an entirety multistage hub rotor unit body deep chamber process tool, is characterized in that, bag
Include the first cutter (1), the second cutter (2), the 3rd cutter (3) and the 4th cutter (4),
Wherein, the first cutter (1), for all deep cavity configurations of polish, its relief angle take α=15 °～
18°；Second cutter (2), for two grades of formers of roughing inner chamber；3rd cutter (3), uses
Carrying out two grades of formers of polish inner chamber, during the Vehicle Processing inner chamber conical surface (7), the 3rd cutter (3) is front
γ=8 °, angle～10 °, the 3rd cutter (3) tool cutting edge angle 90 °～93 °；4th cutter (4),
During deep cavity configuration all for roughing, its front clearance takes 8 °～10 °, in polish
During the comb tooth of chamber, its front clearance takes 14 °～16 °；
First cutter (1), the second cutter (2), the 3rd cutter (3) and the 4th cutter (4),
Self-control knife tool arc radius R wants standard.
2. the process tool used described in claim 1 carries out overall multistage hub rotor
Cell cube deep chamber processing method, is characterized in that, concrete procedure of processing is as follows:
Step one, use standard cutter or blade carry out roughing to part blank, and Vehicle Processing goes out
Inside and outside profile elementary contour, institute's made allowance requires uniformly；
Step 2, artificial aging remove part machining stress；
Step 3, use standard cutter or blade, to Finishing Parts Machining, first process inner chamber profile,
Inner chamber profile Vehicle Processing, to after size, reprocesses profile portion；
Step 4, first machining benchmark A, B, it is ensured that the locating surface precision of polish；
Step 5, the method using reverse side Vehicle Processing, two grades of disc (6) of Vehicle Processing inner chamber, adopt
By circulation nc program, layering removal surplus, radially cut with the second cutter (2) cutter,
Car goes out the left end of two grades of disc, and forming-tool radially shakes out, then changes the 3rd cutter (3), from this two
The right-hand member incision of level disc, car goes out its left end；
Step 6, use the second cutter (2) and the 3rd cutter (3), the Vehicle Processing inner chamber conical surface
(7), the processing method identical with step 5 is used；
Step 7, use the 4th cutter (4), Vehicle Processing inner chamber comb tooth (5)；
Step 8, use the first cutter (1), connect flat all machined traces, it is ensured that machined surface
Roughness.
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| CN201310684754.9A CN103706817B (en) | 2013-12-13 | 2013-12-13 | A kind of Novel integral multistage hub rotor unit deep cavity process tool and method thereof |
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| CN201310684754.9A CN103706817B (en) | 2013-12-13 | 2013-12-13 | A kind of Novel integral multistage hub rotor unit deep cavity process tool and method thereof |
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| CN103706817A CN103706817A (en) | 2014-04-09 |
| CN103706817B true CN103706817B (en) | 2017-01-04 |
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| CN104384529B (en) * | 2014-10-10 | 2016-11-30 | 长春中车轨道车辆有限公司 | Cylinder blank inwall becomes arc machining process |
| CN105562717A (en) * | 2014-10-13 | 2016-05-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control turning method for large deep cavity structure of aircraft engine disc part |
| CN104400008B (en) * | 2014-11-24 | 2016-08-24 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of numerical-control processing method in the deep chamber of ring of obturaging |
| CN108127338A (en) * | 2017-11-24 | 2018-06-08 | 北京动力机械研究所 | A kind of integral processing method of the drum rotor with multistage leaf dish |
| CN109128231A (en) * | 2018-10-19 | 2019-01-04 | 中国航发航空科技股份有限公司 | A kind of lathe processing tool bit of aero-engine compressor multistage leaf dish weld assembly small space |
| CN109604725B (en) * | 2019-01-09 | 2020-05-22 | 成都飞机工业（集团）有限责任公司 | Efficient cutting machining method for inner shape of thin-wall multi-groove-cavity part |
| CN110883343B (en) * | 2019-11-25 | 2021-05-11 | 上海电气电站设备有限公司 | Method for processing multistage blades of steam turbine generator |
| CN112091235B (en) * | 2020-09-15 | 2022-07-05 | 中国航发贵州黎阳航空动力有限公司 | Powder high-temperature alloy stepped grate vehicle machining method |
| CN113857498B (en) * | 2021-10-26 | 2023-06-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Processing method of aero-engine high-pressure compressor disk |
| CN117124029B (en) * | 2023-10-26 | 2024-01-26 | 中国航发沈阳黎明航空发动机有限责任公司 | Integral manufacturing process method of multistage blisk |
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Address after: No. 999, Xuefu Road, Xindu, Chengdu, Sichuan 610500 Patentee after: AECC SICHUAN GAS TURBINE Research Institute Address before: 621703 Jiangyou 305 mailbox operation monitoring department, Mianyang City, Sichuan Province Patentee before: CHINA GAS TURBINE EST |
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