CN103706817A - Novel integral multistage hub rotor unit deep cavity machining tool and method - Google Patents
Novel integral multistage hub rotor unit deep cavity machining tool and method Download PDFInfo
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- CN103706817A CN103706817A CN201310684754.9A CN201310684754A CN103706817A CN 103706817 A CN103706817 A CN 103706817A CN 201310684754 A CN201310684754 A CN 201310684754A CN 103706817 A CN103706817 A CN 103706817A
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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 aeroengine manufacturing technology, and particularly relates to deep cavity machining technology for a multistage hub rotor unit on an aeroengine or other parts. A machined deep cavity structure comprises inner-cavity comb teeth, an inner-cavity secondary radial plate and an inner-cavity conical surface. The multistage hub rotor unit is machined by taking a journal, two hub barrels and three single-stage blisks as an integral structural unit. Compared with a conventional structure, the structure has the advantages that three conventional connections (in a welding manner) among journals, blisks and hub barrels are omitted; compared with a spigot connecting manner, the manner has the advantages that not only are a large quantity of parts omitted, but also weight brought by spigots is reduced; compared with the welding manner, the manner has the advantages that a process of electron beam welding is omitted, and risk brought by welding is reduced as well. Through a homemade tool, the deep cavity machining technology of the multistage hub rotor unit is realized. The technology can be also applied to deep cavity machining of other similar parts.
Description
Technical field
The invention belongs to aero-engine manufacturing technology, be specifically related to the dark chamber of multistage hub rotor unit body or the dark chamber of other part process technology in aero-engine.
Background technology
Aero-engine structure is to the future development of lightweight, integration, Composite, and following aero-engine is that intensity is high to the requirement of each parts, and good rigidity is lightweight.The multistage hub rotor unit of novel overall body structure is a kind of new structure parts that modern high thrust-weight ratio aero-engine adopts, compare with traditional single stage blisk, it is using axle journal, dish and hub cylinder as a part, to carry out the whole processing of cell cube, has avoided the shortcomings that single part is installed and Welding Structure is brought.New multistage hub rotor unit body structure, dark cavity configuration mainly comprises inner chamber comb tooth 5, inner chamber secondary disc 6, the inner chamber conical surface 7 three parts.Using multistage hub rotor as a cell cube integral body, there is the advantages such as loss of weight, synergy and raising reliability, for improving aero engine total performance tool, be of great significance.
Both at home and abroad, the processing and manufacturing technology of single blisk reaches its maturity, and the processing of the multistage hub rotor unit of novel overall body still belongs to the first time at home.For multi-stage integral leaf dish, is all at present both at home and abroad the processing method that adopts single part, in the mode of bolt or welding, connect, not only the process-cycle long, and manufacturing cost is high.With bolts, number of spare parts is many, and needs a large amount of assembling and reclamation work; Employing is welded to connect, and the control of solder technology and welding deformation is had to very high requirement, at present the domestic ripe process technology that does not also adopt the method.Multistage hub rotor unit body is on a forging blank, and the integral body such as axle journal, dish and hub cylinder are processed, and has saved cannelure in the past, blade tenon root, and structure and the form processings such as welding, still belong to the first time at home.The processing of employing cell cube, will form dark chamber, and dark cavity segment, adopts processing method and universal cutter in the past, and part deformation is very large and cannot meet design requirement.For the dark cavity configuration of continuous multi-stage, current domestic also do not have ripe process technology and method.
Summary of the invention
The object of the invention is: find out a kind of process that can effectively process dark chamber, by self-control cutter, determine processing sequence, feed-paths and cutter, solved the dark chamber process technology of multistage hub rotor unit body, and the distortion in effective controlled working process, enhance productivity, guarantee dark chamber crudy and the machining accuracy of multistage hub rotor unit body.
Technical scheme of the present invention is:
The dark chamber of the multistage hub rotor unit of a novel overall body process tool, comprises the first cutter 1, the second cutter 2, the 3rd cutter 3 and four blade tool 4, and wherein, the first cutter 1, is used for all dark cavity configurations of fine finishining, and its relief angle is got α=15 °～18 °; The second cutter 2, is used for roughing inner chamber secondary former; The 3rd cutter 3, is used for fine finishining inner chamber secondary former, during the Vehicle Processing inner chamber conical surface 7, and the 3rd cutter 3 anterior angle γ=8 °～10 °, the 3rd 90 °～93 ° of cutter 3 tool cutting edge angles; Four blade tool 4, while being used for all dark cavity configurations of roughing, its front clearance is got 8 °～10 °, and while being used for fine finishining inner chamber comb tooth, its front clearance is got 14 °～16 °.
The first cutter 1, the second cutter 2, the 3rd cutter 3 and four blade tool 4, self-control knife tool arc radius R is wanted standard.
The dark chamber of the multistage hub rotor unit of a novel overall body processing method, concrete procedure of processing is as follows:
Step 1, 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 evenly;
Step 2, artificial aging are removed part machining stress;
Step 3, use standard cutter or blade, to Finishing Parts Machining, are first processed inner chamber profile, and the Vehicle Processing of inner chamber profile, after size, is reprocessed profile part;
Step 4, first machining benchmark A, B, guarantee accurately machined locating surface precision;
The method of step 5, the Vehicle Processing of employing reverse side, Vehicle Processing inner chamber secondary disc 6, adopt circulation nc program, surplus is removed in layering, with the second cutter 2 cuttves, radially cuts, and car goes out the left end of secondary disc, forming-tool radially shakes out, change the 3rd cutter 3, from the right-hand member incision of this secondary disc, car goes out its left end again;
Step 8, use the first cutter 1, connect flat all machined traces, guarantees the roughness of machined surface.
The beneficial effect that the present invention produces:
The part of the multistage hub rotor unit of novel overall body structure is few, lightweight, is a kind of new structure parts that modern high thrust-weight ratio engine adopts, and can further improve thrust-weight ratio and the reliability of engine, is subject to the great attention of various countries aero-engine department.The whole multistage hub rotor unit body structure of type, using axle journal, blisk and hub cylinder (6 parts) as a part, to carry out the whole processing of cell cube totally, saved the connection (conventionally taking the connected mode of bolt or welding) between conventional each axle journal, dish and hub cylinder, reduced greatly processing quantity (the 3 places connection of part, one circle calculates by 32 holes, save 96, bolt), saved installation time, production efficiency is higher, has the advantages such as obvious loss of weight, synergy and raising reliability after machining.Compare with conventional method, adopt after whole processing, the part process-cycle, by original 6 months, has directly shortened 60 days, more than 80 ten thousand yuan of costs.From development angle, by accumulating experience and developing raising, form after batch machining ability, its economic benefit is very significant.The inner chamber processing that this project is summed up and the method for controlled working distortion have also been widely used in the processing of other testpieces.
Symbol figure explanation
Figure 15 represents that inner chamber comb tooth, 6 represents that secondary disc, 7 represents the inner chamber conical surface
Cutter for same schematic diagram in Fig. 2 process
The specific embodiment
Below in conjunction with Figure of description, the present invention is described in further detail, refers to Fig. 1 and Fig. 2.
As shown in Figure 1, new multistage hub rotor unit body structure, dark cavity configuration mainly comprises inner chamber comb tooth 5, inner chamber secondary disc 6, the inner chamber conical surface 7 three parts.
The dark chamber of the multistage hub rotor unit of a kind of novel overall body process tool, comprise the first cutter 1, the second cutter 2, the 3rd cutter 3 and four blade tool 4, wherein, the first cutter 1, be used for all dark cavity configurations of fine finishining, its relief angle is got α=15 °～18 °, reduces the friction between finished surface and rear knife face, object is to increase lathe tool intensity, improves cutter life; The second cutter 2, is used for roughing inner chamber secondary former; The 3rd cutter 3, is used for fine finishining inner chamber secondary former, during the Vehicle Processing inner chamber conical surface 7, and the 3rd cutter 3 anterior angle γ=8 °～10 °, the 3rd 90 °～93 ° of cutter 3 tool cutting edge angles, its objective is reduction radial load, avoid part vibration; Four blade tool 4, while being used for all dark cavity configurations of roughing, its front clearance is got 8 °～10 °, and while being used for fine finishining inner chamber comb tooth, its front clearance is got 14 °～16 °, and object reduces friction and the surface roughness between cutter and machined surface.
The first cutter 1, the second cutter 2, the 3rd cutter 3 and four blade tool 4, self-control knife tool arc radius R is wanted standard.
The dark chamber of the multistage hub rotor unit of a novel overall body processing method, concrete procedure of processing is as follows:
Step 1, 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 evenly;
Step 2, artificial aging are removed part machining stress;
Step 3, use standard cutter or blade, to Finishing Parts Machining, are first processed inner chamber profile, and the Vehicle Processing of inner chamber profile, after size, is reprocessed profile part;
Step 4, first machining benchmark A, B, guarantee accurately machined locating surface precision;
The method of step 5, the Vehicle Processing of employing reverse side, Vehicle Processing inner chamber secondary disc 6, adopt circulation nc program, surplus is removed in layering, with the second cutter 2 cuttves, radially cuts, and car goes out the left end of secondary disc, forming-tool radially shakes out, change the 3rd cutter 3, from the right-hand member incision of this secondary disc, car goes out its left end again.
Step 8, use the first cutter 1, connect flat all machined traces, guarantees the roughness of machined surface.
Claims (2)
1. the dark chamber of the multistage hub rotor unit of a novel overall body process tool, it is characterized in that, comprise the first cutter (1), the second cutter (2), the 3rd cutter (3) and four blade tool (4), wherein, the first cutter (1), be used for all dark cavity configurations of fine finishining, its relief angle is got α=15 °～18 °; The second cutter (2), is used for roughing inner chamber secondary former; The 3rd cutter (3), is used for fine finishining inner chamber secondary former, during the Vehicle Processing inner chamber conical surface (7), and the 3rd cutter (3) anterior angle γ=8 °～10 °, the 3rd cutter (3 90 ° of tool cutting edge angles～93 °; Four blade tool (4), while being used for all dark cavity configurations of roughing, its front clearance is got 8 °～10 °, and while being used for fine finishining inner chamber comb tooth, its front clearance is got 14 °～16 °;
The first cutter (1), the second cutter (2), the 3rd cutter (3) and four blade tool (4), self-control knife tool arc radius R is wanted standard.
2. the dark chamber of the multistage hub rotor unit of a novel overall body processing method, is characterized in that, concrete procedure of processing is as follows:
Step 1, 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 evenly;
Step 2, artificial aging are removed part machining stress;
Step 3, use standard cutter or blade, to Finishing Parts Machining, are first processed inner chamber profile, and the Vehicle Processing of inner chamber profile, after size, is reprocessed profile part;
Step 4, first machining benchmark A, B, guarantee accurately machined locating surface precision;
The method of step 5, the Vehicle Processing of employing reverse side, Vehicle Processing inner chamber secondary disc (6), adopt circulation nc program, surplus is removed in layering, with the second cutter (2) cutter, radially cuts, and car goes out the left end of secondary disc, forming-tool radially shakes out, change the 3rd cutter (3), from the right-hand member incision of this secondary disc, car goes out its left end again;
Step 6, use the second cutter (2) and the 3rd cutter (3), the Vehicle Processing inner chamber conical surface (7), adopts the processing method identical with step 5;
Step 7, use four blade tool (4), Vehicle Processing inner chamber comb tooth (5);
Step 8, use the first cutter (1), connect flat all machined traces, guarantees the roughness of machined surface.
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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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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384529A (en) * | 2014-10-10 | 2015-03-04 | 长春轨道客车装备有限责任公司 | Variable-arc machining method for inner wall of cylinder blank |
| CN104400008A (en) * | 2014-11-24 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical-control processing method of sealed ring-shaped deep cavity |
| 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 |
| 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 |
| CN109604725A (en) * | 2019-01-09 | 2019-04-12 | 成都飞机工业（集团）有限责任公司 | Shape high-efficient cutting processing method in a kind of thin-walled multiple-grooved chamber part |
| CN110883343A (en) * | 2019-11-25 | 2020-03-17 | 上海电气电站设备有限公司 | Method for processing multistage blades of steam turbine generator |
| CN112091235A (en) * | 2020-09-15 | 2020-12-18 | 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 |
| CN113857498A (en) * | 2021-10-26 | 2021-12-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Machining method of high-pressure compressor disc of aircraft engine |
| CN117124029A (en) * | 2023-10-26 | 2023-11-28 | 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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| CN2619745Y (en) * | 2003-05-22 | 2004-06-09 | 上海重型机床厂 | Machine tool for machining plane in ultra-length deep cavity |
| US20060029481A1 (en) * | 2004-08-06 | 2006-02-09 | Craig Karen A | Tool holder with integral coolant channel and locking screw therefor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384529A (en) * | 2014-10-10 | 2015-03-04 | 长春轨道客车装备有限责任公司 | Variable-arc machining method for inner wall of cylinder blank |
| 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 |
| CN104400008A (en) * | 2014-11-24 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical-control processing method of sealed ring-shaped deep cavity |
| 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 |
| CN109604725A (en) * | 2019-01-09 | 2019-04-12 | 成都飞机工业（集团）有限责任公司 | Shape high-efficient cutting processing method in a kind of thin-walled multiple-grooved chamber part |
| CN110883343A (en) * | 2019-11-25 | 2020-03-17 | 上海电气电站设备有限公司 | Method for processing multistage blades of steam turbine generator |
| 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 |
| CN112091235A (en) * | 2020-09-15 | 2020-12-18 | 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 |
| CN113857498A (en) * | 2021-10-26 | 2021-12-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Machining method of high-pressure compressor disc of aircraft engine |
| CN117124029A (en) * | 2023-10-26 | 2023-11-28 | 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 |
| 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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