CN105710217A - Forming method and forming mould for inverted-U-shaped double-flanged sheet metal part - Google Patents
Forming method and forming mould for inverted-U-shaped double-flanged sheet metal part Download PDFInfo
- Publication number
- CN105710217A CN105710217A CN201610203907.7A CN201610203907A CN105710217A CN 105710217 A CN105710217 A CN 105710217A CN 201610203907 A CN201610203907 A CN 201610203907A CN 105710217 A CN105710217 A CN 105710217A
- Authority
- CN
- China
- Prior art keywords
- mould
- base
- cover plate
- sheet metal
- half module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/06—Stripping-off devices
Abstract
The invention discloses a forming method and a forming mould for an inverted-U-shaped double-flanged sheet metal part. The mould comprises a base, a forming mould and a cover plate, wherein the base is of a plate-shaped structure; the forming mould is fixed to the base; the forming mould consists of three assemblies, namely a left half mould, a right half mould and a movable mould; the upper parts of the assemblies are provided with forming bodies which correspond to the inverted-U-shaped sheet metal part; the cover plate is in compression joint to the upper surface of the forming mould which is fixed to the base; expanded sheet metal rough part is placed onto the upper surface of the forming mould, and is fixed through pressing of the cover plate; forming equipment is utilized for fitting the expanded sheet metal rough part to the mould surface of the side surface of the forming mould; and the cover plate is dismounted for firstly pushing the movable mould out of the base, and the let half mould and the right half mould are separately separated from the part.
Description
Technical field
The present invention relates to a kind of sheet metal part forming technique in aircraft manufacturing field, specifically a kind of manufacturing process for the double; two crimp sheet metal part of the semi-enclosed ∏ type of structure and mould.
Background technology
Along with the development of modern production technology, metal plate forming machinery degree is more and more higher.And aircraft is in order to realize the function of its uniqueness greatly, it are no lack of some complicated, closure structures of existence, meet the instructions for use of high accuracy, weight amount, and existing open equipment cannot realize the processing of closure member, hand finishing closing product is the most frequently used solution route, is widely used in aircraft industry.
The hand finishing disadvantage of sheet metal part is more, knocks through hammer many times, and trace is obvious, labor strength is big, surface quality of workpieces is poor for piece surface hammer, and mechanical property and the production efficiency of part are produced considerable influence by this.The one of hand finishing is big, and difficult point is " receipts ".Receipts show as " fiber shortens, thickness increases ", be wrinkling, be closed flat, wrinkling, the repeated deformation process that is closed flat again again, for thicker plate, " ∏ " type closure structures corner has substantial amounts of receipts limit amount, slab Instability wrinkling phenomenon often occurs during shaping, even extremely wrinkle, affect product quality.Additionally when hand finishing has " ∏ " type closure structures of complex profile, part can parcel mould gradually, along with hammer, the putting more effort of clappers, part and mould are fitted more and more tighter, under the premise not changing External Shape, it is impossible to realize separating of part and mould.Part must apply certain external force broken into two with one's hands on one lateral bending limit, just can back off part, but part global shape has occurred that change, break away from moulds, even if workman exerts to revise and recovers, it also is difficult to ensure the forming accuracy in assembly coordination face, mould only becomes one and produces according to and cannot be re-used as final inspection foundation of handing over, this assembly relation is complicated, whole profile curvature has " ∏ " type connector of strict demand, is badly in need of a kind of manufacturing process that ensure that enclosed construction product assembly quality.
Summary of the invention
In order to improve the surface quality of aircraft " ∏ " type sheet metal part, reduce receipts limit, " ∏ " type sheet metal part corner amount, solve the defect that traditional moulds shaped closure structural member cannot separate with part, it is an object of the invention to provide the manufacturing process of the double; two crimp sheet metal part of a kind of ∏ type and mould.
A kind of manufacturing process of the double, two crimp sheet metal part of ∏ type, it is characterized in that: 1) there is a mould, this mould contains base, shaping mould and cover plate, described base is a platy structure, shaping mould is fixed on base, described shaping mould is by left half module, right half module and three molectron compositions of movable mold, the bottom of each molectron is plane seat, can be connected with base, molectron top is the molded body corresponding with ∏ type sheet metal part, the upper surface of molded body is corresponding with crimp place profile inside part, the lateral surface of molded body is corresponding with crimp place profile outside part, described cover plate is crimped on the upper surface of shaping mould, the lower surface of cover plate is corresponding with crimp place profile inside part；2) the left half module of shaping mould, right half module and movable mold are fixed on base；3) the panel beating woollen of expansion is placed in the upper surface of shaping mould, is fixed with cover plate；4) former is utilized to make the woollen of expansion be fitted in the profile of shaping mould side；5) remove cover plate, first movable mold is released base, more left half module is separated with part respectively with right half module.
The beneficial effects of the present invention is: 1) this novel die adopts the hollow detachable combinative structure in middle part, and solve part and die forming separation problem, solve mould heaviness forming difficulty problem simultaneously.2) installation of this novel die is almost identical with operational approach and traditional moulds, it is easy to promotes and realizes.3) what this manufacturing process decreased hammer knocks and receives limit workload, improves part forming accuracy, and product closed by " ∏ " type finally giving smooth streamline.4) this Novel die structure highly versatile, can use for reference the shaping of different variable curvature, " ∏ " type closure structures, constant product quality, relies on low to operator's level.
Below in conjunction with embodiment accompanying drawing, the application is described in further detail.
Accompanying drawing explanation
Fig. 1 is the double; two crimp sheet metal part signal of ∏ type
Fig. 2 is the mould signal of the double; two crimp sheet metal part of ∏ type
Fig. 3 is the relation signal of left half module, right half module, movable mold and base
Fig. 4 is covering plate structure signal
Fig. 5 is the manufacturing process signal of the double; two crimp sheet metal part of ∏ type
Fig. 6 is that movable mold separates signal with part
Fig. 7 be left half module, right half module separate with part signal,
Number description: 1 base, 2 left half modules, 3 right half modules, 4 movable mold, 5 cover plates, 6 parts, 7 molded bodys, 8 plane seats, 9 groove-type channel
Detailed description of the invention
Referring to accompanying drawing, the airplane parts that embodiment provides is as shown in Figure 1, this part is the double; two crimp sheet metal part of a kind of ∏ type, the cross section of part is a kind of semi-enclosed pair of crimp grooved, shaping difficulty is big, utilizing prior art to shape maximum problem is be not readily separated with mould after part forming, is forcibly separating and easily causes part deformation and be not easily repaired.The mould that the application proposes is as shown in drawings, mould contains base 1, shaping mould and cover plate 5, described base 1 is a platy structure, shaping mould is fixed on base, and described shaping mould is made up of left half module 2, right half module 3 and 4 three molectrons of movable mold, and the bottom of each molectron is plane seat 8, can be connected with base 1, for the dismounting of portable propelling mould, forming a groove-type channel 9 between left half module 3 and right half module 4 lower flat seat, this groove-type channel 9 mates with the width of movable mold 4；Molectron top is the molded body 7 corresponding with ∏ type sheet metal part, the upper surface of molded body 7 is corresponding with upper crimp place profile inside part 6, the lateral surface of molded body 7 is corresponding with crimp place profile outside part 6, described cover plate 5 is crimped on the upper surface of shaping mould, and the lower surface of cover plate 5 is corresponding with upper crimp place profile inside part.
During use, the left half module 2 of shaping mould, right half module 3 and movable mold 4 are fixed on base 1；The sheet metal part woollen of expansion is placed in the upper surface of shaping mould again, compresses with cover plate 5 and fixed by movable pin insertion pin hole；Recycling former makes the part woollen of expansion be fitted in the profile of shaping mould side；Finally mould is separated with part, first cover plate 5 is removed, the securing member of left half module, right half module and movable mold and base is released, movable mold 4 is released base 1 by the groove-type channel 9 between left half module 3 and right half module 4, left half module 2 is elapsed to the right and separates with part, or right half module 3 is separated with part to left translation, part can be taken off.
Need to illustrate a bit: material flow performance when being launch part woollen according to part forming, top crimp adds 5mm process allowance, makes up material in shaping and glide and cause top crimp overproof.The continuous crimp in bottom is more big, and it is more difficult to receive limit, adds less than 2mm trimming allowance, it is to avoid in forming process, part contraction distortion is uneven and occur that material feeds not foot phenomenon herein.
Claims (4)
1. the manufacturing process of the double, two crimp sheet metal part of ∏ type, it is characterized in that: 1) there is a mould, this mould contains base, shaping mould and cover plate, described base is a platy structure, shaping mould is fixed on base, described shaping mould is by left half module, right half module and three molectron compositions of movable mold, the bottom of each molectron is plane seat, can be connected with base, molectron top is the molded body corresponding with ∏ type sheet metal part, the upper surface of molded body is corresponding with crimp place profile inside part, the lateral surface of molded body is corresponding with crimp place profile outside part, described cover plate is crimped on the upper surface of shaping mould, the lower surface of cover plate is corresponding with crimp place profile inside part；2) the left half module of shaping mould, right half module and movable mold are fixed on base；The panel beating woollen of expansion is placed in the upper surface of shaping mould by 3, is fixed with cover plate；4) former is utilized to make the woollen of expansion be fitted in the profile of shaping mould side；5) remove cover plate, first movable mold is released base, more left half module is separated with part respectively with right half module.
2. the mould of the double, two crimp sheet metal part of ∏ type, it is characterized in that: this mould contains base, shaping mould and cover plate, described base is a platy structure, shaping mould is fixed on base, described shaping mould is by left half module, right half module and three molectron compositions of movable mold, the bottom of each molectron is plane seat, can be connected with base, molectron top is the molded body corresponding with ∏ type sheet metal part, the upper surface of molded body is corresponding with upper crimp place profile inside part, the lateral surface of molded body is corresponding with crimp place profile outside part, described cover plate is crimped on the upper surface of shaping mould, the lower surface of cover plate is corresponding with crimp place profile inside part.
3. the mould of the double; two crimp sheet metal part of ∏ type as claimed in claim 2, it is characterised in that described cover plate is three-back-shaped Thick Hollow two pieces independent, and two cover plates joint is corresponding with the bending part in the middle part of part.
4. the mould of the double; two crimp sheet metal part of ∏ type as claimed in claim 2, it is characterised in that forming a groove-type channel between described left half module and right half module lower flat seat, this groove-type channel mates with the width of movable mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203907.7A CN105710217A (en) | 2016-04-01 | 2016-04-01 | Forming method and forming mould for inverted-U-shaped double-flanged sheet metal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203907.7A CN105710217A (en) | 2016-04-01 | 2016-04-01 | Forming method and forming mould for inverted-U-shaped double-flanged sheet metal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105710217A true CN105710217A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610203907.7A Pending CN105710217A (en) | 2016-04-01 | 2016-04-01 | Forming method and forming mould for inverted-U-shaped double-flanged sheet metal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105710217A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297441A (en) * | 2017-07-04 | 2017-10-27 | 西安飞机工业（集团）有限责任公司 | A kind of shaping dies and manufacturing process for closing box-like sheet metal component |
| CN107774779A (en) * | 2017-09-26 | 2018-03-09 | 陕西飞机工业（集团）有限公司 | A kind of method for increasing special-shaped sheet metal part elongation |
| CN112588956A (en) * | 2020-12-14 | 2021-04-02 | 江西洪都航空工业集团有限责任公司 | Method for forming double-curved-surface skin opening frame |
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| US3851517A (en) * | 1971-10-28 | 1974-12-03 | Gen Motors Corp | Process for manufacturing curved channeled members |
| CN201659666U (en) * | 2010-01-05 | 2010-12-01 | 宁海瑞元模塑有限公司 | In-car ashtray plastic tray body die |
| CN202070675U (en) * | 2011-05-10 | 2011-12-14 | 滁州市新康达金属制品有限公司 | Acute-angle composite bending die |
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| CN205702079U (en) * | 2016-04-01 | 2016-11-23 | 中航飞机股份有限公司西安飞机分公司 | A kind of mould of the double crimp sheet metal part of Π type |
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2016
- 2016-04-01 CN CN201610203907.7A patent/CN105710217A/en active Pending
Patent Citations (7)
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| US3851517A (en) * | 1971-10-28 | 1974-12-03 | Gen Motors Corp | Process for manufacturing curved channeled members |
| CN201659666U (en) * | 2010-01-05 | 2010-12-01 | 宁海瑞元模塑有限公司 | In-car ashtray plastic tray body die |
| CN202070675U (en) * | 2011-05-10 | 2011-12-14 | 滁州市新康达金属制品有限公司 | Acute-angle composite bending die |
| CN202498144U (en) * | 2012-02-18 | 2012-10-24 | 沈阳飞机工业（集团）有限公司 | Detachable-type composite material forming die |
| CN204308031U (en) * | 2014-12-07 | 2015-05-06 | 绥阳县耐环铝业有限公司 | Aluminium sheet stamping machine |
| CN104624738A (en) * | 2015-01-16 | 2015-05-20 | 哈尔滨飞机工业集团有限责任公司 | Double-closed-angle sheet-metal part forming method |
| CN205702079U (en) * | 2016-04-01 | 2016-11-23 | 中航飞机股份有限公司西安飞机分公司 | A kind of mould of the double crimp sheet metal part of Π type |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297441A (en) * | 2017-07-04 | 2017-10-27 | 西安飞机工业（集团）有限责任公司 | A kind of shaping dies and manufacturing process for closing box-like sheet metal component |
| CN107297441B (en) * | 2017-07-04 | 2023-04-14 | 西安飞机工业（集团）有限责任公司 | Forming die and forming method for closed box-shaped sheet metal part |
| CN107774779A (en) * | 2017-09-26 | 2018-03-09 | 陕西飞机工业（集团）有限公司 | A kind of method for increasing special-shaped sheet metal part elongation |
| CN107774779B (en) * | 2017-09-26 | 2019-06-28 | 陕西飞机工业（集团）有限公司 | A method of increasing special-shaped sheet metal part elongation |
| CN112588956A (en) * | 2020-12-14 | 2021-04-02 | 江西洪都航空工业集团有限责任公司 | Method for forming double-curved-surface skin opening frame |
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Application publication date: 20160629 |