CN103586494A - Combined machining tool for molded surfaces of deep cavities among drum webs and machining method of combined machining tool - Google Patents
Combined machining tool for molded surfaces of deep cavities among drum webs and machining method of combined machining tool Download PDFInfo
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- CN103586494A CN103586494A CN201310460668.XA CN201310460668A CN103586494A CN 103586494 A CN103586494 A CN 103586494A CN 201310460668 A CN201310460668 A CN 201310460668A CN 103586494 A CN103586494 A CN 103586494A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to the technical field of machining, particularly relates to a combined machining tool for molded surfaces of deep cavities among drum webs and a machining method of the combined machining tool. By the combined machining tool, the technical problems of vibration, tool collision and poor surface quality during machining of the molded surfaces of the deep cavities among the drum webs of aero-engines are solved. The combined machining tool comprises a middle plate-shaped tool, an upper plate-shaped tool and a lower plate-shaped tool. The machining method includes the following steps: step 1, fixedly connecting a transfer tool with a numerically-controlled vertical turning tool clamp; step 2, machining middle molded surfaces of the deep cavities among the drum webs; step 3, machining upper molded surfaces and upper arc-shaped molded surfaces of the deep cavities among the drum webs; step 4, machining lower molded surfaces and lower arc-shaped molded surfaces of the deep cavities among the drum webs to complete machining of primary inner cavities; step 5, circularly performing the step 2 to the step 4 to sequentially complete machining of each-level inner cavities.
Description
Technical field
The invention belongs to Machining Technology field, particularly relate to combination process tool and the processing method of deep cavity shape face between a kind of drum barrel web.
Background technology
In the processing and manufacturing of aero-engine drum tube kind part, for improving the performance of engine, meet work requirements, between drum barrel web, deep cavity shape face need to combine processing, because part is worked under high temperature, high velocity environment, in order to improve service life and the security of part, Surface Quality is had relatively high expectations.Because deep cavity shape space of planes between web is narrow and small, radial depth is large, is subject to structural limitations, cutting tool intensity is low, very easily produces vibration, forges a knife in processing, causes finished surface to produce ripple, processing rear surface is of poor quality, is the key technical problem that puzzlement part is paid always.
A new generation's aero-engine drum barrel sub-assembly, it is the key component of engine, it is the thin-walled drum constitutional detail being combined by friction-welding technique by six grades of single-decks, this design of part is complicated, part height overall 370mm, drum barrel external form wall thickness 1.85mm, there is multistage web structure, web spacing is less, minimum is only 24mm left and right, 6 grades of web core diameters are Φ 203.3mm, deep cavity shape face is to web centre distance 106mm, be that chamber is dark, young, open wide property poor, dimensional accuracy and technical conditions require strict, the difficulty of processing is very big, its profile processing is difficult to guarantee surface quality by existing process.
Because aero-engine drum barrel class inner cavity of component profile opening is less, the degree of depth is darker, belongs to Totally-enclosed-type cavity configuration, adopts existing technological method for processing, wastes time and energy, surface quality is poor, poor stability, and difficulty of processing is very large.As shown in figure 11, existing deep cavity shape face processing technology adopts the larger spherical tool of fillet to process, because web is longer, narrow space, cutter overhangs longer, part wall thickness is thinner, and cutter fillet is larger, intensity is lower, easily vibration, in tool cutting process, blade and part contact-making surface are longer, easily make cutter generation covibration, after processing, at surface of internal cavity, produce chatter mark, affect service life and the security of part, must remove chatter mark by using hand operated grinding wheel sheet to carry out polishing to High Rotation Speed part, the time of polishing is long, poor stability, have a big risk, manually throw the strength of repairing inhomogeneous, surface of internal cavity uniformity after polishing is poor, and easily cause the overproof situation of surface of internal cavity quality to occur, become the bottleneck problem that restriction part is produced, between drum barrel web, deep cavity shape face process technology has become a technical barrier urgently to be resolved hurrily.
A new generation's aero-engine drum barrel class inner cavity of component process technology is badly in need of a kind ofly realizing efficient, safety, good processing method and the specific purpose tool of surface quality.
Summary of the invention
The problem existing for prior art, the invention provides combination process tool and the processing method of deep cavity shape face between a kind of drum barrel web, its solved in the processing of deep cavity shape face between aero-engine drum barrel web vibrate, forge a knife, technical barrier that surface quality is poor, improved the crudy of deep cavity shape face.
To achieve these goals, the present invention adopts following technical scheme: the combination process tool of deep cavity shape face between a kind of drum barrel web, comprise the tabular cutter in middle part, the tabular cutter of the tabular cutter in top and bottom, the tabular cutter in described middle part comprises middle part knife plate and blade, middle part knife plate is connected and forms with middle part blade bearing by cutter hub seat, blade is arranged on the middle part of blade bearing outer end, middle part, and described blade is rhombus fillet standard insert; The tabular cutter in described top comprises top knife plate and blade, and top knife plate is connected and forms with upper blade seat by cutter hub seat, and blade is arranged on the top of upper blade seat outer end, and described blade is rhombus fillet standard insert; The tabular cutter in described bottom comprises bottom knife plate and blade, and bottom knife plate is connected and forms with lower blade seat by cutter hub seat, and blade is arranged on the bottom of lower blade seat outer end, and described blade is rhombus fillet standard insert.
The processing method that adopts the combination process tool of deep cavity shape face between described drum barrel web, comprises the steps:
Step 1: switching cutter hub is fixedly connected with numerical control vertical lathe cutter holder;
Step 2: the tabular cutter in middle part is connected on switching cutter hub, and carries out tool setting; Between machining drum barrel web, the middle part profile in dark chamber, forms flat inner chamber;
Step 3: change the tabular cutter in top and be connected on switching cutter hub, carry out tool setting; The upper profile in dark chamber, top arc profile between machining drum barrel web, and make between upper profile and middle part profile, between upper profile and top arc profile, smoothly switching between top arc profile and epiplastron profile;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub, carry out tool setting; The lower profile in dark chamber, bottom arc profile between machining drum barrel web, and make between lower profile and middle part profile, between lower profile and bottom arc profile, smoothly switching between bottom arc profile and bottom web profile; Now complete the processing work of one-level inner chamber;
Step 5: circulation performs step two-step 4, completes the processing work of inner chambers at different levels successively.
The processing method that adopts the combination process tool of deep cavity shape face between described drum barrel web, comprises the steps:
Step 1: switching cutter hub is fixedly connected with numerical control vertical lathe cutter holder;
Step 2: the tabular cutter in middle part is connected on switching cutter hub, and carries out tool setting; Between machining drum barrel web, the middle part profile in dark chamber, forms flat inner chamber; Now complete the processing work of the middle part profile of one-level inner chamber, and complete successively the processing work of the middle part profile of inner chambers at different levels;
Step 3: change the tabular cutter in top and be connected on switching cutter hub, carry out tool setting; The upper profile in dark chamber, top arc profile between machining drum barrel web, and make between upper profile and middle part profile, between upper profile and top arc profile, smoothly switching between top arc profile and epiplastron profile; Now complete the upper profile of one-level inner chamber, the processing work of top arc profile, and complete successively the upper profile of inner chambers at different levels and the processing work of top arc profile;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub, carry out tool setting; The lower profile in dark chamber, bottom arc profile between machining drum barrel web, and make between lower profile and middle part profile, between lower profile and bottom arc profile, smoothly switching between bottom arc profile and bottom web profile; Now complete the lower profile of one-level inner chamber and the processing work of bottom arc profile, and complete successively the lower profile of inner chambers at different levels and the processing work of bottom arc profile.
Beneficial effect of the present invention:
The invention solves in the processing of deep cavity shape face between aero-engine drum barrel web vibrate, forge a knife, technical barrier that surface quality is poor; The present invention adopts rhombus fillet standard insert to cut, cutting at one time area and cutting force have been reduced, eliminate the covibration in process, improve deep cavity shape face crudy, met the specification requirement of deep cavity shape face between drum barrel web, broken through the technical bottleneck of dark chamber processing vibration, met Element Design dimensional requirement, for improving the reliability of engine, provide guarantee, can in same kind of parts, promote the use of, lifting to aero-engine of new generation, gas turbine manufacturing technology level, has profound significance.The dark chamber provided by the invention process technology development and Application that still belongs to the first time at home, without any Experience.
The present invention has been applied between aero-engine drum barrel sub-assembly web of new generation in the processing of deep cavity shape face, changed existing processing technology, eliminated the work step that needs artificial polishing in existing processing method, improved the quality of bulging tube kind part processing, working (machining) efficiency improves more than 30%, realize 3,500,000 yuan of year wound benefits, obtained good economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tabular cutter in top of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the tabular cutter in middle part of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation of the tabular cutter in bottom of the present invention;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the top view of Fig. 1, Fig. 3 and Fig. 5;
Fig. 8 is the structural representation of the use state of the tabular cutter in top of the present invention;
Fig. 9 is the structural representation of the use state of the tabular cutter in middle part of the present invention;
Figure 10 is the structural representation of the use state of the tabular cutter in bottom of the present invention;
Figure 11 is the structural representation after existing spherical tool, gland are connected with switching cutter hub;
In figure, 1-switching cutter hub, 2-housing screw, 3-gland, 4-top knife plate, 5-blade, 6-middle part knife plate, 7-bottom knife plate, 8-drum barrel web, 9-middle part profile, 10-upper profile, 11-lower profile, 12-top arc profile, 13-bottom arc profile, 14-spherical blade, 15-cutter hub seat, 16-upper blade seat, 17-middle part blade bearing, 18-lower blade seat, 19-epiplastron, 20-bottom web, 21-epiplastron profile, 22-bottom web profile.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Fig. 1～7, the combination process tool of deep cavity shape face between a kind of drum barrel web, comprise the tabular cutter in middle part, the tabular cutter of the tabular cutter in top and bottom, the tabular cutter in described middle part comprises middle part knife plate 6 and blade 5, middle part knife plate 6 is connected and forms with middle part blade bearing 17 by cutter hub seat 15, cutter hub seat 15 is used for being connected with the cutter hub 1 of transferring, and blade 5 is arranged on the middle part of blade bearing 17 outer ends, middle part, and described blade 5 is rhombus fillet standard insert; The tabular cutter in described top comprises top knife plate 4 and blade 5, top knife plate 4 is connected and forms with upper blade seat 16 by cutter hub seat 15, cutter hub seat 15 is used for being connected with the cutter hub 1 of transferring, and blade 5 is arranged on the top of upper blade seat 16 outer ends, and described blade 5 is rhombus fillet standard insert; The tabular cutter in described bottom comprises bottom knife plate 7 and blade 5, bottom knife plate 7 is connected and forms with lower blade seat 18 by cutter hub seat 15, cutter hub seat 15 is used for being connected with the cutter hub 1 of transferring, and blade 5 is arranged on the bottom of lower blade seat 18 outer ends, and described blade 5 is rhombus fillet standard insert.
Described rhombus fillet standard insert model is DCMT070204.
As shown in Fig. 8～10, adopt the processing method of the combination process tool of deep cavity shape face between described drum barrel web, comprise the steps:
Step 1: the switching cutter hub 1 of elongate structure is fixedly connected with numerical control vertical lathe cutter holder, by the position of dial gauge adjustment switching cutter hub 1, until the side of switching cutter hub 1 is parallel with numerical control vertical lathe main shaft (Z axis) direction, and fixes by trip bolt;
Step 2: the tabular cutter in middle part is placed between switching cutter hub 1 and gland 3, and be fixed by housing screw 2, carry out tool setting, the middle part profile 9 that is divided into two cutter processing 8 dark chambeies of drum barrel web according to following cutter path: epiplastron 19 belows-drum barrel web 8 outsides in the dark chamber of profile 9-, bottom web 20 tops-middle part in drum barrel web 8 outsides-dark chamber, form flat inner chamber; Cutter exits dark chamber, measures middle part profile 9 sizes; Described middle part profile 9 is the mid portion of bottom surface, dark chamber;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; First cutter cutting-in: 0.4～0.8mm; The second cutter cutting-in: 0.2mm;
Step 3: change the tabular cutter in top and be connected on switching cutter hub 1, carry out tool setting; According to upper profile 10, the top arc profile 12 in following cutter path processing 8 dark chambeies of drum barrel web: epiplastron 19 belows-drum barrel web 8 outsides in the dark chamber of arc profile 12-, epiplastron 19 belows-upper profile 10-top in drum barrel web 8 outsides-dark chamber, and make between upper profile 10 and middle part profile 9, between upper profile 10 and top arc profile 12, smoothly transfer between top arc profile 12 and epiplastron profile 21; Cutter exits dark chamber, measures the size of upper profile 10 and top arc profile 12; Described upper profile 10 is the top part of bottom surface, dark chamber, and top arc profile 12 is the top part of bottom, dark chamber and the arc-shaped transition profile between epiplastron profile 21, the lower surface of the epiplastron 19 that described epiplastron profile 21 is dark chamber;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; Cutting-in: 0.3～0.6mm;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub 1, carry out tool setting; According to lower profile 11 and the bottom arc profile 13 in following cutter path processing 8 dark chambeies of drum barrel web: bottom web 20 tops-drum barrel web 8 outsides in the dark chamber of arc profile 13-, bottom web 20 tops-lower profile 11-bottom in drum barrel web 8 outsides-dark chamber, and make between lower profile 11 and middle part profile 9, between lower profile 11 and bottom arc profile 13, smoothly transfer between bottom arc profile 13 and bottom web profile 22; Cutter exits dark chamber, measures the size of lower profile 11 and bottom arc profile 13; Described lower profile 11 is the bottom part of bottom surface, dark chamber, and bottom arc profile 13 is the bottom part of bottom, dark chamber and the arc-shaped transition profile between bottom web profile 22, the upper surface of the bottom web 20 that described bottom web profile 22 is dark chamber; Now complete the processing work of one-level inner chamber;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; Cutting-in: 0.3～0.6mm;
Step 5: circulation performs step two-step 4, completes the processing work of inner chambers at different levels successively.
As shown in Fig. 8～10, adopt the processing method of the combination process tool of deep cavity shape face between described drum barrel web, specifically comprise the steps:
Step 1: the switching cutter hub 1 of elongate structure is connected with numerical control vertical lathe cutter holder, by the position of dial gauge adjustment switching cutter hub 1, until the side of switching cutter hub 1 is parallel with numerical control vertical lathe main shaft (Z axis) direction, and fixes by trip bolt;
Step 2: the tabular cutter in middle part is placed between switching cutter hub 1 and gland 3, and be fixed by housing screw 2, carry out tool setting, the middle part profile 9 that is divided into two cutter processing 8 dark chambeies of drum barrel web according to following cutter path: epiplastron 19 belows-drum barrel web 8 outsides in the dark chamber of profile 9-, bottom web 20 tops-middle part in drum barrel web 8 outsides-dark chamber, form flat inner chamber; Cutter exits dark chamber, measures middle part profile 9 sizes; Described middle part profile 9 is the mid portion of bottom surface, dark chamber; Complete the processing work of the middle part profile 9 of one-level inner chamber, and complete successively the processing work of the middle part profile 9 of inner chambers at different levels;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; First cutter cutting-in: 0.4～0.8mm; The second cutter cutting-in: 0.2mm;
Step 3: change the tabular cutter in top and be connected on switching cutter hub 1, carry out tool setting, according to upper profile 10, the top arc profile 12 in following cutter path processing 8 dark chambeies of drum barrel web: epiplastron 19 belows-drum barrel web 8 outsides in the dark chamber of arc profile 12-, epiplastron 19 belows-upper profile 10-top in drum barrel web 8 outsides-dark chamber, and make between upper profile 10 and middle part profile 9, between upper profile 10 and top arc profile 12, smoothly transfer between top arc profile 12 and epiplastron profile 21; Cutter exits dark chamber, measures the size of upper profile 10 and top arc profile 12; Described upper profile 10 is the top part of bottom surface, dark chamber, and top arc profile 12 is the top part of bottom, dark chamber and the arc-shaped transition profile between epiplastron profile 21, the lower surface of the epiplastron 19 that described epiplastron profile 21 is dark chamber; Complete the upper profile 10 of one-level inner chamber and the processing work of top arc profile 12, and complete successively the upper profile 10 of inner chambers at different levels and the processing work of top arc profile 12;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; Cutting-in: 0.3～0.6mm;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub 1, carry out tool setting, according to lower profile 11 and the bottom arc profile 13 in following cutter path processing 8 dark chambeies of drum barrel web: bottom web 20 tops-drum barrel web 8 outsides in the dark chamber of arc profile 13-, bottom web 20 tops-lower profile 11-bottom in drum barrel web 8 outsides-dark chamber, and make between lower profile 11 and middle part profile 9, between lower profile 11 and bottom arc profile 13, smoothly transfer between bottom arc profile 13 and bottom web profile 22; Cutter exits dark chamber, measures the size of lower profile 11 and bottom arc profile 13; Described lower profile 11 is the bottom part of bottom surface, dark chamber, and bottom arc profile 13 is the bottom part of bottom, dark chamber and the arc-shaped transition profile between bottom web profile 22, the upper surface of the bottom web 20 that described bottom web profile 22 is dark chamber; Complete the lower profile 11 of one-level inner chamber and the processing work of bottom arc profile 13, and complete successively the lower profile 11 of inner chambers at different levels and the processing work of bottom arc profile 13;
Cutting parameter: rotating speed: 32r/mm; Feed speed: 0.11mm/r; Cutting-in: 0.3～0.6mm.
Claims (3)
1. the combination process tool of deep cavity shape face between a drum barrel web, it is characterized in that comprising the tabular cutter in middle part, the tabular cutter of the tabular cutter in top and bottom, the tabular cutter in described middle part comprises middle part knife plate and blade, middle part knife plate is connected and forms with middle part blade bearing by cutter hub seat, blade is arranged on the middle part of blade bearing outer end, middle part, and described blade is rhombus fillet standard insert; The tabular cutter in described top, comprises top knife plate and blade, and top knife plate is connected and forms with upper blade seat by cutter hub seat, and blade is arranged on the top of upper blade seat outer end, and described blade is rhombus fillet standard insert; The tabular cutter in described bottom, comprises bottom knife plate and blade, and bottom knife plate is connected and forms with lower blade seat by cutter hub seat, and blade is arranged on the bottom of lower blade seat outer end, and described blade is rhombus fillet standard insert.
2. adopt the processing method of the combination process tool of deep cavity shape face between drum barrel web claimed in claim 1, it is characterized in that comprising the steps:
Step 1: switching cutter hub is fixedly connected with numerical control vertical lathe cutter holder;
Step 2: the tabular cutter in middle part is connected on switching cutter hub, and carries out tool setting; Between machining drum barrel web, the middle part profile in dark chamber, forms flat inner chamber;
Step 3: change the tabular cutter in top and be connected on switching cutter hub, carry out tool setting; The upper profile in dark chamber, top arc profile between machining drum barrel web, and make between upper profile and middle part profile, between upper profile and top arc profile, smoothly switching between top arc profile and epiplastron profile;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub, carry out tool setting; The lower profile in dark chamber, bottom arc profile between machining drum barrel web, and make between lower profile and middle part profile, between lower profile and bottom arc profile, smoothly switching between bottom arc profile and bottom web profile; Now complete the processing work of one-level inner chamber;
Step 5: circulation performs step two-step 4, completes the processing work of inner chambers at different levels successively.
3. adopt the processing method of the combination process tool of deep cavity shape face between drum barrel web claimed in claim 1, it is characterized in that comprising the steps:
Step 1: switching cutter hub is fixedly connected with numerical control vertical lathe cutter holder;
Step 2: the tabular cutter in middle part is connected on switching cutter hub, and carries out tool setting; Between machining drum barrel web, the middle part profile in dark chamber, forms flat inner chamber; Now complete the processing work of the middle part profile of one-level inner chamber, and complete successively the processing work of the middle part profile of inner chambers at different levels;
Step 3: change the tabular cutter in top and be connected on switching cutter hub, carry out tool setting; The upper profile in dark chamber, top arc profile between machining drum barrel web, and make between upper profile and middle part profile, between upper profile and top arc profile, smoothly switching between top arc profile and epiplastron profile; Now complete the upper profile of one-level inner chamber, the processing work of top arc profile, and complete successively the upper profile of inner chambers at different levels and the processing work of top arc profile;
Step 4: change the tabular cutter in bottom and be connected on switching cutter hub, carry out tool setting; The lower profile in dark chamber, bottom arc profile between machining drum barrel web, and make between lower profile and middle part profile, between lower profile and bottom arc profile, smoothly switching between bottom arc profile and bottom web profile; Now complete the lower profile of one-level inner chamber and the processing work of bottom arc profile, and complete successively the lower profile of inner chambers at different levels and the processing work of bottom arc profile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310460668.XA CN103586494B (en) | 2013-09-30 | 2013-09-30 | The Combined machining cutter in deep cavity shape face and processing method between a kind of drum barrel web |
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| CN201310460668.XA CN103586494B (en) | 2013-09-30 | 2013-09-30 | The Combined machining cutter in deep cavity shape face and processing method between a kind of drum barrel web |
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| CN103586494A true CN103586494A (en) | 2014-02-19 |
| CN103586494B CN103586494B (en) | 2016-01-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107377998A (en) * | 2017-06-06 | 2017-11-24 | 武汉船用机械有限责任公司 | Processing tool and processing method for curved surface cavity |
| 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 |
| CN109719308A (en) * | 2018-12-11 | 2019-05-07 | 中国航发贵州黎阳航空动力有限公司 | A kind of annular tongue-and-groove processing presetting cutter method |
| CN110480039A (en) * | 2019-09-12 | 2019-11-22 | 无锡航亚科技股份有限公司 | A kind of cutter and processing method for processing aero-engine welding disc intracoelomic cavity |
| CN113770402A (en) * | 2021-09-25 | 2021-12-10 | 盐城京奇刀具有限公司 | Inner wall machining tool and machining method for narrow-mouth deep-cavity type revolving body part |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107377998A (en) * | 2017-06-06 | 2017-11-24 | 武汉船用机械有限责任公司 | Processing tool and processing method for curved surface cavity |
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| CN113770402A (en) * | 2021-09-25 | 2021-12-10 | 盐城京奇刀具有限公司 | Inner wall machining tool and machining method for narrow-mouth deep-cavity type revolving body part |
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| CN103586494B (en) | 2016-01-06 |
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