CN102925826A - Integral panel creep aging forming tool based on autoclave - Google Patents
Integral panel creep aging forming tool based on autoclave Download PDFInfo
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- CN102925826A CN102925826A CN2012104653084A CN201210465308A CN102925826A CN 102925826 A CN102925826 A CN 102925826A CN 2012104653084 A CN2012104653084 A CN 2012104653084A CN 201210465308 A CN201210465308 A CN 201210465308A CN 102925826 A CN102925826 A CN 102925826A
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Abstract
The invention belongs to the technical field of the metal plate forming and relates to an integral panel creep aging forming tool based on an autoclave. The tool comprises a support structure, a reference platform, a clamping plate, a limiting base, an internal side wall, an external side wall, a base plate and a sealing structure, wherein the support structure is of a frame structure, the reference platform is fixed on a plane of the support structure, the reference platform is provided with the limiting base, and the internal side wall and the external side wall are arranged around the reference platform. The integral panel creep aging forming tool adopts a detachable clamping mode to bring convenience to target profile adjustment and greatly save time and economic cost. The integral tool is large in size and high in precision, and an integral wall which is 5.5 meter long can be formed. The support structure of the tool adopts a mode of a frame so that not only the integral rigidity requirements can be met, but also the uniformity of a temperature field can be ensured. The side walls around the tool can be disassembled, so that the clamping plate can be conveniently replaced, and the deformation and heat processing problems caused by welding can be reduced. With the adoption of a unique sealing structure of the tool, a sealing bag cannot be damaged under the pressure of 1.5MPa of the autoclave so as to ensure the sealing effect.
Description
Technical field
The invention belongs to the Sheet Metal Forming Technology field, relate to a kind of integral panel creep age forming frock based on autoclave.
Background technology
Creep age forming is a kind of main manufacturing process of large-scale integral wallboard, and it is the creep properties that utilizes metal, and material deformation and ageing treatment are carried out synchronously, reaches the shaping purpose.But creep age forming has, and process repeatability is good, the part unrelieved stress is little, can improve the advantages such as anti-fatigue performance of aged aluminum alloy.But be subject to the material restriction in timeliness cycle own in the creep age forming process, can't all change existing recoverable deformation into viscous deformation, causing being shaped exists certain springback capacity afterwards, so die face will have certain " crossing curved amount ".In the part development stage, after making the part resilience, satisfy the requirement of target profile, need to carry out repeated multiple times optimization and adjustment to die face.
Tradition age forming tool structure form mostly is the welding clamp plate type, is comprised of the floor with profile.The backing plate of placement and floor same material between floor and part is as die face.Between backing plate and the floor and floor and framework be spot welding.The compound curved surface top airfoil wallboard of upper lower wall panels, Gulfstream IV and the Gulfstream V of external B1-B has all adopted this kind welded type fixture for forming.Owing to adopting Type of Welding, when die-face design " crossing curved amount " need to be optimized, mould will be changed again, can increase production cycle and cost.
At present, disclosed creep age forming mould is used for small size wall panel parts (length is less than 2m) mostly, and for the frock of age forming large-scale integral wallboard (length is greater than 5m) open report is arranged not yet.
Summary of the invention
Die face changes the problem of adjusting when the present invention seeks to solve large-scale integral wallboard age forming, proposes a kind of integral panel creep age forming frock based on autoclave.
Technical solution of the present invention is, frock comprises supporting structure 1, reference platform 2, clamp 3, outer side wall 4, inner side-wall 6, spacing base 7, backing plate 11 and sealed structure, supporting structure 1 is skeleton construction, reference platform 2 is fixed on the plane of supporting structure 1, place m*n spacing base 7 on the reference platform 2, the spacing of n=part length/spacing base 7, wherein the spacing of spacing base 7 is the 1.5-3% setting of pressing part length along the length direction of part, m=3 is the number along the spacing base 7 of the width setting of part, width along part blank on each spacing base 7 all has groove, along the groove on three on the width of the part spacing bases 7 on a straight line, along three on the width of part spacing base 7 even branches on reference platform 2, be positioned at along three on the width of part spacing bases 7 on the spacing base 7 on both sides along having groove on the length direction of part blank, along the groove on the n on the length direction of part the spacing base 7 on a straight line; Along placing clamp 3 in the groove on three on the width of the part spacing bases 7, the both sides of clamp 3 have with along the corresponding spacing hole in the groove position on the spacing base 7 on the length direction of part blank, spacing hole with along the groove on the spacing base 7 on the length direction of part blank by pin spacing; Along building the spacing base 7 peripheral inner side-walls 6 of installing of finishing, the height value of inner side-wall 6 is lower than the minimum height values at all clamp 3 two ends on the reference platform 2, outer side wall 4 is installed in the periphery of inner side-wall 6, the height value after the height value of outer side wall 4 is positioned on the clamp 3 greater than backing plate 11 and part.Backing plate 11 places on the clamp 3, the inner cavity size that the physical dimension of backing plate 11 forms less than outer side wall 4, and the physical dimension of backing plate 11 is greater than the physical dimension of part blank; Cover airfelt 12 along outer side wall 4, outer side wall 4 external parcel vacuum bags 9, the edge of vacuum bag 9 and reference platform 2 edges are bonding by seal gum 8.
Have breather hole and forklift hole 5 on the described supporting structure 1.
The space curved surface that described all clamps 3 form is used for the shaping of External Shape.
Gap≤the 10mm of described backing plate 11 and outer side wall 4 inner chambers.
The advantage that the present invention has and beneficial effect:
1. age forming die adopts detachable clamp form, makes things convenient for the adjustment of target profile, greatly saves time and Financial cost.
Whole frock size large (5907mm * 1145mm * 695mm), precision high (behind the assembling clamp 3, clamp 3 profile precision prescribeies: positive and negative 0.3mm), the integral panel that the length that can be shaped is 5.5 meters.
3. frock supporting structure 1 adopts frame-type, has both satisfied the integral rigidity requirement, can guarantee uniform temperature fields again.
Frock around sidewall detachable, both be convenient for changing clamp 3, can reduce again welding distortion and the Heat-treatment Problem brought.
5. design the unique package structure, under autoclave 1.5MPa pressure, sealing bag is not destroyed, and guarantees sealing effectiveness.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is outer side wall of the present invention, inner side-wall and spacing base three annexation schematic diagram;
Fig. 3 is sealed structural representation of the present invention (view is tangential along part);
Fig. 4 is sealed structural representation of the present invention (view along part exhibition to);
Fig. 5 is that the anti-vacuum bag of the present invention destroys structure.
Wherein:
1. supporting structure 2. reference platforms 3. clamps 4. outer side walls 5. forklift holes 6. inner side-walls 7. spacing base 8. seal gums 9. vacuum bags 10. parts 11. backing plates 12. airfelt
Embodiment
The present invention adopts some discrete, detachable clamp composition die faces, can realize the adjustment of die face by changing clamp 3, satisfies the age forming requirement of large size integral panel part, can significantly reduce time and the Financial cost of production.
The present invention is a kind of large-scale integral wallboard creep age forming frock (as shown in Figure 1) based on autoclave, comprises several parts such as supporting structure 1, reference platform 2, clamp 3, outer side wall 4, inner side-wall 6, spacing base 7, backing plate 11 and sealed structure.Supporting structure 1 is skeleton construction, reference platform 2 is fixed on the plane of supporting structure 1, place m*n spacing base 7(on the reference platform 2 as shown in Figure 2), the spacing of n=part 10 length/spacing base 7, wherein the spacing of spacing base 7 is the 1.5-3% setting of pressing part 10 length along the length direction of part 10, m=3 is the number along the spacing base 7 of the width setting of part 10, width along part 10 blanks on each spacing base 7 all has groove, along the groove on three on the width of the part 10 spacing bases 7 on a straight line, along three on the width of part 10 spacing base 7 even branches on reference platform 2, be positioned at along three on the width of part 10 spacing bases 7 on the spacing base 7 on both sides along having groove on the length direction of part 10 blanks, along the groove on the n on the length direction of part 10 the spacing base 7 on a straight line; Along placing clamp 3 in the groove on three on the width of the part 10 spacing bases 7, the both sides of clamp 3 have with along the corresponding spacing hole in the groove position on the spacing base 7 on the length direction of part 10 blanks, spacing hole with along the groove on the spacing base 7 on the length direction of part 10 blanks by pin spacing; Along building the spacing base 7 peripheral inner side-walls 6 of installing of finishing, the height value of inner side-wall 6 is lower than the minimum height values at all clamp 3 two ends on the reference platform 2, outer side wall 4 is installed in the periphery of inner side-wall 6, the height value after the height value of outer side wall 4 is positioned on the clamp 3 greater than backing plate 11 and part 10.Backing plate 11 places on the clamp 3, the inner cavity size that the physical dimension of backing plate 11 forms less than outer side wall 4, and the physical dimension of backing plate 11 is greater than the physical dimension of part 10 blanks; Cover airfelt 12 along outer side wall 4, outer side wall 4 external parcel vacuum bags 9, the edge of vacuum bag 9 and reference platform 2 edges are bonding by seal gum 8.
Supporting structure 1 of the present invention is used for strengthening the integral rigidity of frock, adopts the tower structure with perforate, and perforate can improve the Uniformity of Temperature Field of frock in the heat-processed.Supporting structure 1 is welded to below the reference platform 2, and has designed forklift hole 5, is convenient to mobile, transportation.On reference platform 2, be welded with 3*45 altogether of spacing base 7(), clamp 3 is connected with spacing base 7 usefulness pins.Sidewall is dismountable around the frock, and totally 8, the side with spacing base 7 is threaded respectively, is not to be welded on the reference platform 2, designs so not only conveniently assemble and disassemble but also can reduce distortion and the Heat-treatment Problem that welding brings.Along the frock length direction, also designed inner side-wall 6 between outer side wall 4 and the spacing base 7.Outer side wall 4, inner side-wall 6 and spacing base 7 threes are threaded.Place a backing plate 11 between clamp 3 and the part 10, under external load function, part 10 fits on the clamp 3 with backing plate 11, and backing plate 11 plays the effect of complete profile.For the ease of sealing, prevent that vacuum bag 9 from " creeping into " in the frock under air pressure, backing plate 11 and sidewall gap all around are less than 3mm.
The present invention adopts detachable card board-like, relates to assembling process, and therefore the control of the precision of whole frock is a gordian technique.Accuracy guarantee is determined by two aspects: one, the profile precision of each clamp.This precision guarantees by the whole numerical control machine of each clamp Calais.Two, the relative tertiary location between each clamp.Supporting structure 1 is welded to reference platform 2 by stress relief annealing with spacing base 7, and institute's limited location base 7 is carried out one processing according to digital-to-analogue, guarantees like this relative position between the clamp 3 from short transverse, tangential and exhibition to three aspects:.Tangential locating slot in the spacing base 7 carries out pin with the pilot hole of each clamp and cooperates, and guarantees the position that clamp 3 is tangential.Be whole processing with clamp 3 contact planes in each spacing base 7, can guarantee at same plane, thereby guarantee that clamp 3 short transverses are consistent.The exhibition of each spacing base 7 is whole to determine according to digital-to-analogue to the position, thus guarantee clamp 3 exhibition to spacing.
The present invention needed with vacuum bag 9 sealings, and vacuumizes before placing the autoclave Pressurized-heated, therefore will consider the feasibility that seals when the design frock.On the position of sealed vacuum bag 9 sidewall around reference platform 2 protrudes, shown in Fig. 3,4.Cover one deck airfelt 12 between part 10 surfaces and the vacuum bag 9, its effect is when passing into argon pressurization in the autoclave, prevents that vacuum bag 9 from being scratched by the property at parts of edges and corners of frock.In addition, cause vacuum bag 9 to tear in order to prevent that vacuum bag 9 from " creeping into " in the gap of backing plate 11 and sidewall, in outer side wall 4 indoor designs inner side-wall 6 structures (as shown in Figure 5), can prevent that under the protection of airfelt 12 vacuum bag 9 from destroying.
For fear of affect the frock precision because thermal expansivity is different, whole frock is selected this same material of Q235 steel.Supporting structure 1 is welded to reference platform 2(and is of a size of that 5907mm * 1145mm * 15mm), the spacing of spacing base 7 is 120-130mm, and the length of spacing base 7 placed in the middle is 350mm in three spacing bases 7, and the length of the spacing base 7 on both sides is 150mm.
This frock is used for the test of 7050 aluminium alloy integral panel creep age formings, and the part blank size is roughly 5500mm * 1200mm, and part blank thickness 5 ~ 16mm is 9698mm along tangential minimum profile curvature radius, is 42946mm along exhibition to minimum profile curvature radius.
Claims (5)
1. integral panel creep age forming frock based on autoclave, it is characterized in that, frock comprises supporting structure (1), reference platform (2), clamp (3), spacing base (7), inner side-wall (6), outer side wall (4), backing plate (11) and sealed structure, supporting structure (1) is skeleton construction, reference platform (2) is fixed on the plane of supporting structure (1), the upper individual spacing base (7) of m*n of placing of reference platform (2), the spacing of n=part length/spacing base (7), wherein the spacing of spacing base (7) is the 1.5-3% setting of pressing part length along the length direction of part, m=3 is the number along the spacing base (7) of the width setting of part, the upper width along part blank of each spacing base (7) all has groove, along the groove on three the spacing bases (7) on the width of part on a straight line, along three the spacing bases (7) on the width of part evenly branch on reference platform (2), the spacing base (7) that is positioned at both sides along three the spacing bases (7) on the width of part is upper along having groove on the length direction of part blank, along the groove on the n on the length direction of part the spacing base (7) on a straight line; Along placing clamp (3) in the groove on three the spacing bases (7) on the width of part, the both sides of clamp (3) have with along the corresponding spacing hole in the groove position on the spacing base (7) on the length direction of part blank, spacing hole with along the groove on the spacing base (7) on the length direction of part blank by pin spacing; Along building the peripheral inner side-wall (6) of installing of the spacing base (7) of finishing, the height value of inner side-wall (6) is lower than the minimum height values at upper all clamps (3) two ends of reference platform (2), outer side wall (4) is installed in the periphery of inner side-wall (6), and the height value of outer side wall (4) is positioned over height value after clamp (3) is gone up greater than backing plate (11) and part.Backing plate (11) places on the clamp (3), the inner cavity size that the physical dimension of backing plate (11) forms less than outer side wall (4), and the physical dimension of backing plate (11) is greater than the physical dimension of part blank; Cover airfelt (12) along outer side wall (4), outer side wall (4) external parcel vacuum bag (9), the edge of vacuum bag (9) and reference platform (2) edge are bonding by seal gum (8).
2. a kind of integral panel creep age forming frock based on autoclave according to claim 1 is characterized in that, has breather hole and forklift hole (5) on the described supporting structure (1).
3. a kind of integral panel creep age forming frock based on autoclave according to claim 1 is characterized in that, the space curved surface that described all clamps (3) form is used for the shaping of External Shape.
4. a kind of integral panel creep age forming frock based on autoclave according to claim 1 is characterized in that, the gap≤10mm of described backing plate (11) and outer side wall (4) inner chamber.
5. a kind of integral panel creep age forming frock based on autoclave according to claim 1, it is characterized in that, spacing base (7) on the described reference platform (2) is the 20-40% of part blank width along the length of spacing base (7) placed in the middle in three the spacing bases (7) on the width of part, and the length of the spacing base (7) on both sides is the 30-50% of the length of spacing base (7) placed in the middle in three spacing bases (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210465308.4A CN102925826B (en) | 2012-11-16 | 2012-11-16 | Integral panel creep aging forming tool based on autoclave |
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| CN201210465308.4A CN102925826B (en) | 2012-11-16 | 2012-11-16 | Integral panel creep aging forming tool based on autoclave |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643184A (en) * | 2013-12-20 | 2014-03-19 | 中南大学 | Creep aging forming method of aluminum alloy high-tenon integral panel based on autoclave |
| CN103691793A (en) * | 2013-12-20 | 2014-04-02 | 中南大学 | Age hardenable aluminum alloy integral panel one-step forming method based on autoclave |
| CN104408300A (en) * | 2014-11-18 | 2015-03-11 | 西北工业大学 | Microscopic phase-field modeling and analysis method based on age forming/diffusion combination process |
| CN104561848A (en) * | 2014-12-26 | 2015-04-29 | 中国航空工业集团公司北京航空制造工程研究所 | Creep age forming technological method |
| CN105499323A (en) * | 2015-12-03 | 2016-04-20 | 贵州安吉航空精密铸造有限责任公司 | Thermal shape correcting tool of titanium alloy special-shaped structure investment casting |
| CN108994175A (en) * | 2018-07-26 | 2018-12-14 | 中南大学 | Mold for creep forming |
| CN106862377B (en) * | 2017-03-14 | 2018-12-28 | 中南大学 | A kind of manufacturing process of aluminium alloy plate |
| CN112264508A (en) * | 2020-09-15 | 2021-01-26 | 上海航天设备制造总厂有限公司 | Creep forming die-attaching method for large-sized storage box wall plate |
| CN113559523A (en) * | 2020-07-03 | 2021-10-29 | 株式会社万代 | Toy component, joint mechanism, human-shaped toy, and decorative component |
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| CN101988146A (en) * | 2009-07-31 | 2011-03-23 | 中国商用飞机有限责任公司 | Creep age forming method of integral wing panel |
| CN102284589A (en) * | 2011-07-26 | 2011-12-21 | 中南大学 | Metal creep forming die |
| WO2012127038A2 (en) * | 2011-03-24 | 2012-09-27 | Airbus Operations Gmbh | Method for producing a structural component, and structural component |
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| CN101988146A (en) * | 2009-07-31 | 2011-03-23 | 中国商用飞机有限责任公司 | Creep age forming method of integral wing panel |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643184A (en) * | 2013-12-20 | 2014-03-19 | 中南大学 | Creep aging forming method of aluminum alloy high-tenon integral panel based on autoclave |
| CN103691793A (en) * | 2013-12-20 | 2014-04-02 | 中南大学 | Age hardenable aluminum alloy integral panel one-step forming method based on autoclave |
| CN103691793B (en) * | 2013-12-20 | 2015-12-30 | 中南大学 | A kind of based on autoclave can ageing strengthening aluminium alloy integral panel one-step moulding method |
| CN103643184B (en) * | 2013-12-20 | 2016-01-20 | 中南大学 | A kind of aluminium alloy height muscle integral panel creep age forming method based on autoclave |
| CN104408300A (en) * | 2014-11-18 | 2015-03-11 | 西北工业大学 | Microscopic phase-field modeling and analysis method based on age forming/diffusion combination process |
| CN104561848A (en) * | 2014-12-26 | 2015-04-29 | 中国航空工业集团公司北京航空制造工程研究所 | Creep age forming technological method |
| CN105499323A (en) * | 2015-12-03 | 2016-04-20 | 贵州安吉航空精密铸造有限责任公司 | Thermal shape correcting tool of titanium alloy special-shaped structure investment casting |
| CN105499323B (en) * | 2015-12-03 | 2017-10-24 | 贵州安吉航空精密铸造有限责任公司 | A kind of hot shape righting tool of alloy special-shaped titanium structure investment-casting |
| CN106862377B (en) * | 2017-03-14 | 2018-12-28 | 中南大学 | A kind of manufacturing process of aluminium alloy plate |
| CN108994175A (en) * | 2018-07-26 | 2018-12-14 | 中南大学 | Mold for creep forming |
| CN113559523A (en) * | 2020-07-03 | 2021-10-29 | 株式会社万代 | Toy component, joint mechanism, human-shaped toy, and decorative component |
| CN112264508A (en) * | 2020-09-15 | 2021-01-26 | 上海航天设备制造总厂有限公司 | Creep forming die-attaching method for large-sized storage box wall plate |
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| CN102925826B (en) | 2014-09-17 |
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