CN102641934A - Forming method for cylindrical shell piece with flanged holes - Google Patents
Forming method for cylindrical shell piece with flanged holes Download PDFInfo
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- CN102641934A CN102641934A CN2012101166560A CN201210116656A CN102641934A CN 102641934 A CN102641934 A CN 102641934A CN 2012101166560 A CN2012101166560 A CN 2012101166560A CN 201210116656 A CN201210116656 A CN 201210116656A CN 102641934 A CN102641934 A CN 102641934A
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- cylindrical shell
- flange hole
- circular cylindrical
- forming method
- tire
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Abstract
The invention relates to a forming method for a cylindrical shell piece with flanged holes, which is manufactured and invented to aim at a fuel tank of an airplane. The forming method for the cylindrical shell piece with flanged holes comprises the steps of paving and pasting a rubber pad on the outer side of an element to form a combined body, forming the combined body by rolling and bending, correcting the shape of the element and the flanged holes through a detachable combined type tire, and resolving the combined type tire after the correction. The forming method avoids the interference phenomenon of the element and a die during the disassembly, thus the element can not transform after being disassembled, and the unnecessary correcting processes are reduced.
Description
Technical field
The present invention relates to panel beating forming technique field, mainly is the manufacturing process to fuel tanker housing sheet metal components.
Background technology
In airplane parts; The circular cylindrical shell part in band flange hole is usually used in all kinds of fuel tanker shells; At the bottom of such part and case lid, the case, a plurality of parts welding such as aircraft conduit are assembled into fuel tank assembly; Be used to store lubricating oil, hydraulic pressure wet goods liquid medium, in the fuel tanker assembly, the circular cylindrical shell part in band flange hole is the typical case very.
This type of design of part is complicated, and forming process in the past is: the manual earlier oval flange hole → hydroforming reinforcement that is shaped, the progressive curling part of crimp → craft all around become cylinder → make it pattern → unload by force from the finishing die part → proofread and correct once more parts flanged-edge hole → cutting flange hole profile → by straightening die correction part profile in the manual flange hole of proofreading and correct on the finishing die.The tradition forming process production cycle is long, labour intensity is big, surface quality of workpieces is poor, physical dimension is unstable, and the phenomenon of doing over again happens occasionally, and criticizes to produce to part and brings very big difficulty.Concrete difficult point is following:
At first, curling from sheet material is very difficulty of cylinder.The cylinder two ends all has all crimps; Barrel along the circumferential direction has many reinforcements; Reinforcement and termination crimp have also increased the difficulty that part curls greatly when strengthening detail rigidity, also have a plurality of flange hole on the barrel in addition, manual progressive curling ten minutes difficulty.
Secondly, the flange hole is shaped difficult.Part barrel upper edge rotating shaft normal direction has all different special circular flange hole in a plurality of sizes, position, and part is oval when launching, and is circular after part curls.The necessary oval flange hole that is shaped earlier, curling then is circular flange hole, proofreaies and correct flange hole pattern by hand with finishing die again, because rust-preventing aluminum alloy plasticity is relatively poor, the back material flow harden phenomenon that is shaped repeatedly is serious, school, flange hole shape ten minutes difficulty.
The 3rd, behind the part forming from the mould the inloading part difficulty.Because part is closed cylinder, and the flange pore size distribution is on diverse location, and part proportionately after the contour forming, fit by the convex mouth of flange hole and mould, and flange hole and finishing die convex mouth interfere when unloading part, cause inloading part very difficult.After unloading part from the mould by force, the distortion of flange hole dimension is serious, must not have mould and proofreaies and correct, and makes the geometric accuracy and surface quality reduction in flange hole.
Therefore, the speak out of turn shaping in the curling of housing part, barrel upper overturning hole, the inloading part after being shaped of cylinder is the key factor that influences part product quality and production efficiency.
The object of the invention is intended to overcome above difficulty, has improved part quality and production efficiency.
Summary of the invention
The invention discloses a kind of circular cylindrical shell part forming method with the flange hole, part forming is difficult, inloading part is difficult in order to solve, the problem of surface quality difference, improves part production efficiency and product quality, satisfies the fuel tank matching requirements.
A kind of circular cylindrical shell part forming method with the flange hole is characterized in that comprising following steps: 1) with the deployed condition of blank forming for the circular cylindrical shell part in band flange hole; 2) at part outside paving valve rubber, form the assembly that thickness is identical; 3) assembly is carried out roll forming, part is curled be cylinder; 4) the part cover that curls is received on the combined tire, and part and combined tire are fixed, use combined tire to proofread and correct part profile and flange hole with fastening clips; 5) decomposition and combination type tire unloads part, presses drawing inspection spare part outside measurement, and the part is slightly revised.
Described combined tire is combined by base and the shaping piece, the back-up block that connect circular cylindrical shell part two ends, and the shaping piece is positioned at the both sides of back-up block, and back-up block is shaped piece relatively can sliding combination or decomposition, is provided with the pattern in flange hole in the outside of shaping piece.
Manufacturing process of the present invention is compared with traditional manufacturing process, mainly contains the big improvement in two places: the first, and will manual progressively curl changes roller bed roll forming into, greatly reduces operator's labour intensity, improves curling efficient of part and quality.Make special-purpose valve rubber, make it with hydroforming after part fit fully, form the assembly of equal thickness, assembly is carried out roll forming on three beaming roller beds, part is curled is cylinder; The second, replace original finishing die and straightening die with combined tire, simplify the part forming operation, make part unload no longer difficulty from mould.After part curls; On combined tire, carrying out profile correction and flange hole proofreaies and correct; After proofreading and correct completion combined tire is decomposed, part and mould interfere phenomenon when having avoided inloading part, so part can not deform behind the inloading part; Promptly solve the problem of inloading part difficulty, reduced unnecessary correcting process again.
The advantage of above-mentioned processing method is; Reduced circular cylindrical shell part forming frock; Simplify forming process, solved the curling difficulty of part, flange hole shaping difficulty, the difficult problem of inloading part, also reduced operator's labour intensity simultaneously; Significantly improve the production efficiency of this type of part, guaranteed product quality.
Below in conjunction with embodiment and accompanying drawing this invention is further described.
Description of drawings:
The circular cylindrical shell part sketch map in Fig. 1 band flange hole.
The circular cylindrical shell part section sketch map in Fig. 2 band flange hole.
The circular cylindrical shell part in Fig. 3 band flange hole launches sketch map.
The circular cylindrical shell part roll forming sketch map in Fig. 4 band flange hole.
The combined tire structural representation of Fig. 5.
The combined tire of Fig. 6 is proofreaied and correct the part sketch map.
Back-up block took out sketch map when the combined tire of Fig. 7 decomposed inloading part.
The shaping piece took out sketch map when the combined tire of Fig. 8 decomposed inloading part.
Numbering explanation among the figure: circular cylindrical shell part, 2 reinforcements, 3 termination crimps, 4 butt welds, 5 first flange holes, 6 second flange holes, 7 the 3rd flange holes, 8 special-purpose valve rubbers, 9 three beaming roller beds, 10 left shaping pieces, 11 back-up blocks, 12 right shaping pieces, 13 fastening clips, 14 bases in 1 band flange hole
Specific embodiment
Below be that example describes with the typical case with the circular cylindrical shell part in flange hole.
Referring to accompanying drawing, Fig. 1 is the cylinder housing part sketch map of speaking out of turn.According to the structural design of aircraft, the circular cylindrical shell part is made by rustproof aluminum alloy sheet material, with at the bottom of case lid, the case, a plurality of parts welding such as conduit are assembled into fuel tank assembly.Part has a butt weld 4 in the high direction of tube; Barrel along the circumferential direction has reinforcement 2; Along cylinder rotating shaft normal direction position, the size special circular first flange hole 5 all inequality, the second flange hole 6, the 3rd flange hole 7 (as shown in Figure 2) are arranged; Be used for the butt joint of fuel tank and oil pipe, cylinder two ends and weld edge have crimp 3.For this part forming, the shaping in the curling of cylinder, flange hole and be shaped after inloading part be the problem that the present invention endeavours to solve.
At first, be the sheet metal component (as shown in Figure 3) under the circular cylindrical shell part deployed condition with blank forming.Because crimp is too little around the part, need to make the expansion hole in flange hole by blank material under the process surplus around the expansion model.The oval-shaped first flange hole 5 of manual preform, the second flange hole 6, the 3rd flange hole 7 prevent that hydroforming from cracking on the concora crush mould.Go up hydraulic press hydroforming reinforcement 2, crimp 3 and flange hole then, the surplus and the sanding edge of cutting crimp 3.
Secondly, be cylinder with the part roll forming.Make special-purpose valve rubber 8, system is hidden groove and hole on valve rubber, and valve rubber and part outer panel face are fitted fully; The assembly of forming an equal thickness; Assembly is rolled curved (as shown in Figure 4) on three beaming roller beds, through the adjustment to rod axle 9, substep rolls part and curves drum.
The 3rd, use combined tire (as shown in Figure 5) to proofread and correct part profile and flange hole.After part rolls and curves cylinder; Part is set on the combined tire, and part and combined tire is fixed, the manual part circularity of proofreading and correct with fastening clips 13; Proofread and correct each flange hole (as shown in Figure 6) respectively with shaping piece 10, shaping piece 12, make it pattern and draw flange hole trim line.
Above-mentioned combined tire is combined by base 14 and the left side shaping piece 10, back-up block 11 and the right shaping piece 12 that connect circular cylindrical shell part two ends; The both sides of back-up block 11 are plane; Can between adjacent shaping piece, extract out; The outside of shaping piece 10 is provided with the pattern in the first flange hole 5 and the second flange hole 6 on a left side, on right side shaping piece 12, is provided with the pattern in the 3rd flange hole 7.
The 4th, decomposition and combination type tire unloads part (like Fig. 7, shown in Figure 8).After part is proofreaied and correct and is finished; Earlier fastening clips 13 is taken off; Again back-up block 11 is taken out (as shown in Figure 7); Then be shaped piece 12 of the right side is moved the back in the middle of the bases 14 and takes out (as shown in Figure 8), again the left side piece 10 that is shaped is moved and takes out in the middle of bases 14, part unloads (as shown in Figure 2) fully from mould.
At last, by line cutting flange hole profile, the sanding part edge is pressed drawing inspection spare part outside measurement, and the part is slightly revised.
Claims (2)
1. the circular cylindrical shell part forming method with the flange hole is characterized in that comprising following steps: 1) with the deployed condition of blank forming for the circular cylindrical shell part in band flange hole; 2) at part outside paving valve rubber, form the assembly that thickness is identical; 3) assembly is carried out roll forming, part is curled be cylinder; 4) the part cover that curls is received on the combined tire, and part and combined tire are fixed, use combined tire to proofread and correct part profile and flange hole with fastening clips; 5) decomposition and combination type tire unloads part, presses drawing inspection spare part outside measurement, and the part is slightly revised.
2. the circular cylindrical shell part forming method in band flange as claimed in claim 1 hole; It is characterized in that described combined tire is combined by base and the shaping piece, the back-up block that connect circular cylindrical shell part two ends; The shaping piece is positioned at the both sides of back-up block; Back-up block is shaped piece relatively can sliding combination or decomposition, is provided with the pattern in flange hole in the outside of shaping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116656.0A CN102641934B (en) | 2012-04-19 | 2012-04-19 | Forming method for cylindrical shell piece with flanged holes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116656.0A CN102641934B (en) | 2012-04-19 | 2012-04-19 | Forming method for cylindrical shell piece with flanged holes |
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| Publication Number | Publication Date |
|---|---|
| CN102641934A true CN102641934A (en) | 2012-08-22 |
| CN102641934B CN102641934B (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210116656.0A Active CN102641934B (en) | 2012-04-19 | 2012-04-19 | Forming method for cylindrical shell piece with flanged holes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138960A (en) * | 2014-06-27 | 2014-11-12 | 中航飞机股份有限公司西安飞机分公司 | Forming method of groove-shaped sheet metal part with flanging holes and flange on side edges |
| CN104511943A (en) * | 2013-09-30 | 2015-04-15 | 哈尔滨飞机工业集团有限责任公司 | Trimming method of edge sealing frame type part hydraulically formed based on a rubber bladder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439968B (en) * | 2014-11-24 | 2015-08-12 | 首都航天机械公司 | A kind of large-scale tank cylinder section integral manufacturing method based on the milling of numerical control mirror image |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2364223A1 (en) * | 1973-12-22 | 1975-06-26 | Skf Kugellagerfabriken Gmbh | METHOD FOR MANUFACTURING CONCENTRIC MACHINE ELEMENTS |
| JP2736684B2 (en) * | 1989-07-14 | 1998-04-02 | 日本碍子株式会社 | Method of manufacturing curved enamel panel |
| JP2002126822A (en) * | 2001-09-21 | 2002-05-08 | Daido Machinery Ltd | Apparatus for bending metallic plate |
| CN201231287Y (en) * | 2008-05-27 | 2009-05-06 | 西安飞机工业（集团）有限责任公司 | Split type conduit supporting plug |
| JP2012024768A (en) * | 2010-06-21 | 2012-02-09 | Technocrats Corp | Undercut processing mechanism |
-
2012
- 2012-04-19 CN CN201210116656.0A patent/CN102641934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2364223A1 (en) * | 1973-12-22 | 1975-06-26 | Skf Kugellagerfabriken Gmbh | METHOD FOR MANUFACTURING CONCENTRIC MACHINE ELEMENTS |
| JP2736684B2 (en) * | 1989-07-14 | 1998-04-02 | 日本碍子株式会社 | Method of manufacturing curved enamel panel |
| JP2002126822A (en) * | 2001-09-21 | 2002-05-08 | Daido Machinery Ltd | Apparatus for bending metallic plate |
| CN201231287Y (en) * | 2008-05-27 | 2009-05-06 | 西安飞机工业（集团）有限责任公司 | Split type conduit supporting plug |
| JP2012024768A (en) * | 2010-06-21 | 2012-02-09 | Technocrats Corp | Undercut processing mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 赵凤林: "油箱壳体成形工艺分析与翻边模设计", 《模具工业》, vol. 35, no. 10, 15 October 2009 (2009-10-15) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511943A (en) * | 2013-09-30 | 2015-04-15 | 哈尔滨飞机工业集团有限责任公司 | Trimming method of edge sealing frame type part hydraulically formed based on a rubber bladder |
| CN104138960A (en) * | 2014-06-27 | 2014-11-12 | 中航飞机股份有限公司西安飞机分公司 | Forming method of groove-shaped sheet metal part with flanging holes and flange on side edges |
| CN104138960B (en) * | 2014-06-27 | 2016-07-06 | 中航飞机股份有限公司西安飞机分公司 | A kind of side band turns up the manufacturing process of flute profile sheet metal part of lateral opening and crimp |
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| Publication number | Publication date |
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| CN102641934B (en) | 2014-03-19 |
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