CN104759670B - Machining method for titanium alloy thin wall double-tab part - Google Patents

Machining method for titanium alloy thin wall double-tab part Download PDF

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Publication number
CN104759670B
CN104759670B CN201510155487.5A CN201510155487A CN104759670B CN 104759670 B CN104759670 B CN 104759670B CN 201510155487 A CN201510155487 A CN 201510155487A CN 104759670 B CN104759670 B CN 104759670B
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CN
China
Prior art keywords
auricle
angle
cutter
milling
milling cutter
Prior art date
Application number
CN201510155487.5A
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Chinese (zh)
Other versions
CN104759670A (en
Inventor
张鹏
纪鹏
李雯佳
徐冰
Original Assignee
中航飞机股份有限公司西安飞机分公司
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Application filed by 中航飞机股份有限公司西安飞机分公司 filed Critical 中航飞机股份有限公司西安飞机分公司
Priority to CN201510155487.5A priority Critical patent/CN104759670B/en
Publication of CN104759670A publication Critical patent/CN104759670A/en
Application granted granted Critical
Publication of CN104759670B publication Critical patent/CN104759670B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/88Titanium

Abstract

The invention provides a machining method for a titanium alloy thin wall double-tab part. The part contains parallel double tabs and a web arranged at the base parts of the tabs, wherein the tabs and the web are in a non-right-angle relation; a combined milling cutter is arranged and is formed by connecting three disc milling cutters and gaskets among the milling cutters in series by a central shaft; a part is clamped on a horizontal milling machine through a splicing milling tool so that the machining of tab groove cavities and the outer sides of the tabs is finished; and one angle opening milling cutter and one angle closing milling cutter are used for machining residues of opened angles and closed angles of the outer sides of the tabs of the part.

Description

A kind of processing method of titanium alloy thin wall ears sheet part
Technical field
The application relates to the manufacture of airplane parts, specifically a kind of titanium alloy thin wall ears sheet part Processing method.
Background technology
In field of machining, titanium alloy material has the spy that other metal materials cannot have Point: specific strength is high, heat resistance is high, anticorrosive good.Particularly titanium alloy thin wall ears sheet class zero The bottleneck of part processing maximum is that the processing of material difficulty, dimensional accuracy and Geometrical Tolerance Principle are high.Generally Plain-milling machine or numerical control machining center use cylindrical bar milling cutter cutter be processed, and raw in reality During product, for special ears chip architecture, when spending especially with dihedral angle, ear simultaneously When sheet spacing, auricle flatness and wall thickness require strict, conventional machining method and cutter without Method ensures.Therefore, the processing method designing a kind of titanium alloy thin wall ears sheet class part, by energy Significantly facilitate the machining of reality, can preferably ensure the design requirement of part simultaneously.
Summary of the invention
The purpose of the application is the processing method providing a kind of titanium alloy thin wall ears sheet part, This part has parallel ears sheet and the web of auricle base portion, is non-between auricle and web Right-angle relationship, processing method is as follows:
1) there is a cutter block, by the pad between central shaft three wire rod quality of concatenation and milling cutter Sheet combines, and the vallecular cavity between thickness and the auricle of the middle milling cutter of this cutter block mates, The spacer thickness of middle milling cutter both sides and the consistency of thickness of part auricle, the milling cutter of both sides is used for adding The outside of work two auricle, the radius of each milling cutter is less than the auricle peak distance to web;
2) have by parts fixation on horizontal milling machine by assembled milling, adjust the clamping angle of part, Make the auricle of part mate with the direction of feed of cutter block, complete outside auricle vallecular cavity and auricle Processing;
3) again by horizontal for the web of part clamping on normal vertical miller, use an angle of release milling Cutter, the knife edge angular of this angle of release milling cutter mates with the angle of release outside auricle, outside processing part auricle The remnants of side angle of release;Using one and close angular cutter, this knife edge angular closing angular cutter is another with auricle Closing angle coupling outside one, processing part auricle closes the remnants at angle outside another.
The application has the beneficial effects that: 1) by cutter block once by the vallecular cavity of auricle and Machine-shaping outside auricle, it is to avoid ears sheet will not be dehisced or remain silent in the course of processing, ears Sheet uniform wall thickness;2) ears sheet base angle remnants then use angle milling cutter on normal vertical miller Complete, improve the machining accuracy of part.
Below in conjunction with embodiment accompanying drawing, the application is described in further detail:
Accompanying drawing explanation
Fig. 1 is the signal of thin-walled ears sheet design of part
The structural representation of Fig. 2 cutter block
The processing signal of Fig. 3 ears sheet
Processing signal remaining outside Fig. 4 ears sheet
Numbering explanation in figure: 1 web, 2 close angle, 3 auricles, 4 vallecular cavities, 5 angle of releases, in 6 Mandrel, 7 first milling cutters, 8 second milling cutters, 9 the 3rd milling cutters, 10 pads, 11 millings tool, 12 Angle of release milling cutter, 13 close angular cutter
Detailed description of the invention
Seeing accompanying drawing, the part of embodiment is a titanium alloy ears sheet part, the auricle of part Being non-right-angle relationship between 3 and web 1, auricle and web side angle are angle of release 5, angle of release Also referred to as obtuse angle, opposite side angle, for closing angle 2, closes angle and is also referred to as acute angle.For high-precision processing Auricle, the application uses a cutter block, and this cutter block is by first milling cutter the 7, second milling Pad 10 between cutter and the 3rd milling cutter 9 and milling cutter, by convenience center axle 6 concatenation group Conjunction forms, and the vallecular cavity 4 between thickness and the auricle of the second middle milling cutter of milling cutter 8 mates, absolutely Can not be more than the vallecular cavity of auricle, the best and consistency of thickness of vallecular cavity, it is specifically intended that each milling The radius of cutter is less than the auricle peak distance to web, in order to avoid adding the abdomen chewing part man-hour Plate;During processing auricle, being preferably formed with an auxiliary milling tool 11, this milling tool 11 is a wedge shape knot Structure, its locating surface is an inclined-plane, has 11 by parts fixation on horizontal milling machine by milling, Adjust the clamping angle of part, make the auricle 3 of part mate with the direction of feed of cutter block, As it is shown on figure 3, complete the processing outside auricle vallecular cavity and auricle;Next processing auricle 3 with The remnants of the angle, outside of web 1, by the horizontal clamping of web 1 of part at common vertical milling On bed, use outside an angle of release milling cutter 12, the knife edge angular of this angle of release milling cutter 12 and auricle Angle of release 5 mate, the remnants of angle of release outside processing part auricle;Use one and close angular cutter 13, this closes the knife edge angular and auricle of angular cutter 13 angle 2 of closing outside another and mates, processing Part auricle closes the remnants at angle outside another, as shown in Figure 4.

Claims (1)

1. a processing method for titanium alloy thin wall ears sheet part, this part contains parallel Ears sheet and the web of auricle base portion, be on-right angle relation between auricle and web, its feature It is:
1) there is a cutter block, by the pad between central shaft three wire rod quality of concatenation and milling cutter Sheet combines, and the vallecular cavity between thickness and the auricle of the middle milling cutter of this cutter block mates, The spacer thickness of middle milling cutter both sides and the consistency of thickness of part auricle, the milling cutter of both sides is used for adding The outside of work two auricle, the radius of each milling cutter is less than the auricle peak distance to web;
2) have by parts fixation on horizontal milling machine by assembled milling, adjust the clamping angle of part, Make the auricle of part mate with the direction of feed of cutter block, complete outside auricle vallecular cavity and auricle Processing;
3) again by horizontal for the web of part clamping on normal vertical miller, use an angle of release milling Cutter, the knife edge angular of this angle of release milling cutter mates with the angle of release outside auricle, outside processing part auricle The remnants of side angle of release;Using one and close angular cutter, this knife edge angular closing angular cutter is another with auricle Closing angle coupling outside one, processing part auricle closes the remnants at angle outside another.
CN201510155487.5A 2015-04-02 2015-04-02 Machining method for titanium alloy thin wall double-tab part CN104759670B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510155487.5A CN104759670B (en) 2015-04-02 2015-04-02 Machining method for titanium alloy thin wall double-tab part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510155487.5A CN104759670B (en) 2015-04-02 2015-04-02 Machining method for titanium alloy thin wall double-tab part

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CN104759670A CN104759670A (en) 2015-07-08
CN104759670B true CN104759670B (en) 2017-01-11

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537657B (en) * 2016-03-17 2018-09-18 沈阳飞机工业(集团)有限公司 A kind of method of digital control processing auricle formula notch
CN106077775B (en) * 2016-08-04 2018-05-08 成都航飞航空机械设备制造有限公司 A kind of processing method of three axis machine tooling back-off class workpiece

Citations (7)

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Publication number Priority date Publication date Assignee Title
US5208979A (en) * 1991-09-19 1993-05-11 Howard Schmidt Prefracture laser formation of a stress riser groove
CN102225480A (en) * 2011-06-08 2011-10-26 沈阳飞机工业(集团)有限公司 Method for machining joint with deep and narrow groove complicated structure
CN202498411U (en) * 2012-02-18 2012-10-24 沈阳飞机工业(集团)有限公司 Composite material part contour milling profiling
CN103056433A (en) * 2012-12-31 2013-04-24 四川绵竹鑫坤机械制造有限责任公司 Machining method for conical inclined crown of blade
CN203156404U (en) * 2013-03-06 2013-08-28 西安兴航航空制造有限公司 Precision machining clamp for slide rail lugs of aerofoil
CN104439367A (en) * 2014-11-24 2015-03-25 中航飞机股份有限公司西安飞机分公司 Drilling method of airplane double-lug part and drill jig clamp
CN104475822A (en) * 2014-11-14 2015-04-01 中航飞机股份有限公司西安飞机分公司 Support drill jig structure for drilling double lug piece part

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US5208979A (en) * 1991-09-19 1993-05-11 Howard Schmidt Prefracture laser formation of a stress riser groove
CN102225480A (en) * 2011-06-08 2011-10-26 沈阳飞机工业(集团)有限公司 Method for machining joint with deep and narrow groove complicated structure
CN202498411U (en) * 2012-02-18 2012-10-24 沈阳飞机工业(集团)有限公司 Composite material part contour milling profiling
CN103056433A (en) * 2012-12-31 2013-04-24 四川绵竹鑫坤机械制造有限责任公司 Machining method for conical inclined crown of blade
CN203156404U (en) * 2013-03-06 2013-08-28 西安兴航航空制造有限公司 Precision machining clamp for slide rail lugs of aerofoil
CN104475822A (en) * 2014-11-14 2015-04-01 中航飞机股份有限公司西安飞机分公司 Support drill jig structure for drilling double lug piece part
CN104439367A (en) * 2014-11-24 2015-03-25 中航飞机股份有限公司西安飞机分公司 Drilling method of airplane double-lug part and drill jig clamp

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