CN105252768B - A kind of verification cover plate and method of calibration for the shaping of special-shaped composite foam layer product - Google Patents
A kind of verification cover plate and method of calibration for the shaping of special-shaped composite foam layer product Download PDFInfo
- Publication number
- CN105252768B CN105252768B CN201510582083.4A CN201510582083A CN105252768B CN 105252768 B CN105252768 B CN 105252768B CN 201510582083 A CN201510582083 A CN 201510582083A CN 105252768 B CN105252768 B CN 105252768B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- verification
- special
- exterior skin
- shaping
- Prior art date
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- 239000006260 foams Substances 0.000 title claims abstract description 119
- 239000010410 layers Substances 0.000 title claims abstract description 49
- 239000002131 composite materials Substances 0.000 title claims abstract description 47
- 238000007493 shaping process Methods 0.000 title claims abstract description 39
- 210000003491 Skin Anatomy 0.000 claims abstract description 72
- 239000003292 glue Substances 0.000 claims abstract description 41
- 239000000203 mixtures Substances 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000002360 preparation methods Methods 0.000 claims description 5
- 230000037250 Clearance Effects 0.000 claims description 4
- 241001081830 Degeneriaceae Species 0.000 claims description 4
- 230000035512 clearance Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 239000004636 vulcanized rubber Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 239000011162 core materials Substances 0.000 description 46
- 238000000034 methods Methods 0.000 description 5
- 239000000463 materials Substances 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 230000001413 cellular Effects 0.000 description 1
- 230000023298 conjugation with cellular fusion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagrams Methods 0.000 description 1
- 239000011229 interlayers Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastics Substances 0.000 description 1
- 229920003023 plastics Polymers 0.000 description 1
- 239000011160 polymer matrix composites Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical group 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[S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000021037 unidirectional conjugation Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Abstract
Description
Technical field
The present invention relates to composite processing field shaping technique, and in particular to one kind is for special-shaped composite foam folder The verification cover plate and method of calibration of layer product shaping.
Background technology
Foam Core Sandwich Structure is that one kind uses polymer matrix composites as covering, using foamed plastics conduct The sandwich form of core.Because its intensity is high, rigidity is big, lightweight, endurance, it is corrosion-resistant the advantages of, such product exists Extensive use in the advanced configurations such as Aero-Space.Some Foam Core Sandwich Structure complex contours and combination property requirement compared with Height, in order to take into account its external dimensions precision and internal bonding quality simultaneously, its assembly technology must be strictly controlled.For example, Certain special-shaped composite foam layer product connect using 1 exterior skin, 1 foam core and two separator glues be molded with as Shown in Fig. 1, wherein the wedge angle being glued in foam core and exterior skin and circular arc sector need filling-foam glue J-118, it is ensured that zero Coordinate gapless between part.But mating surface is more between the closing of this product structure and part, foamed glue filling situation in assembling process It is not visible, if foamed glue is locally filled with being discontented with will cause product inside generation space, if foamed glue is locally filled with excessively causing There is bulge phenomenon in article surface, or assembling dislocation causes dimensional accuracy unqualified, and scrappage is high.
The content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided a kind of school for the shaping of special-shaped composite foam layer product Cover plate and method of calibration are tested, for checking the fit clearance between part in Foam Core Sandwich Structure product forming process, The uncontrollable problem of foamed glue loading is solved, improves the inside bonding quality and appearance and size precision of part.
The technical solution adopted by the present invention is：
A kind of verification cover plate for the shaping of special-shaped composite foam layer product, the special-shaped composite foam folder Layer product uses foam core, dividing plate and exterior skin to be glued shaping, and the exterior skin has wedge angle and/or circular arc sector, described The shape of foam core and exterior skin wedge angle and/or the weld filling-foam glue of circular arc sector, the verification cover plate and exterior skin Shape matches, it is described verification cover plate inner profile it is consistent with the inner profile of exterior skin, it is described verify cover plate on wedge angle with/ Or circular arc sector is provided with several through holes.
A kind of described verification cover plate for the shaping of special-shaped composite foam layer product, the verification cover plate is sulphur Change rubber verification cover plate.
A kind of described verification cover plate for the shaping of special-shaped composite foam layer product, the thickness of the verification cover plate It is 0.2-0.5mm to spend.
A kind of described verification cover plate for the shaping of special-shaped composite foam layer product, the through hole is in the school The wedge angle and/or circular arc sector tested on cover plate are uniformly arranged, and the spacing of adjacent through-holes is 5-10mm.
A kind of described verification cover plate for the shaping of special-shaped composite foam layer product, the aperture of the through hole is 2.5mm。
A kind of preparation method of verification cover plate for the shaping of special-shaped composite foam layer product, including following step Suddenly：
1) exterior skin is prepared first, and exterior skin is prepared by exterior skin prepreg laying on forming frock；
2) by exterior skin pattern CNC cutting, and verification cover plate frock preimpregnation is completed by formpiston of the forming frock of exterior skin The laying of material；
3) carry out drilling through hole treatment in the wedge angle of verification cover plate and/or circular arc sector.
A kind of method of calibration for the shaping of special-shaped composite foam layer product, comprises the following steps：
1) pre-assembled, in dividing plate and foam core surface mount glued membrane, exterior skin, foam core and baffle combination is consolidated It is fixed, and wedge angle and/or circular arc sector filling-foam glue between exterior skin and foam core；
2) verify, exterior skin is replaced using cover plate is verified, and foam core and baffle combination, then using verifying on cover plate Through hole observation foam core on foamed glue occupied state, if foamed glue with verify cover plate fit closely, prove to steep herein Foam fuse and verification cover plate no-float；If there is fit clearance, foamed glue is carried out in relevant position trickle fill up or cut Subtract, verification cover plate verification is then reused, untill foam core coordinates gapless with verification cover plate；
3) after verification is finished, verification cover plate is removed, exterior skin is fixed with foam core, baffle combination again.
Described a kind of method of calibration for the shaping of special-shaped composite foam layer product, also including step 4) pre- hair Bubble is verified again, is packaged after exterior skin and foam core, baffle combination are fixed, is entered tank, makes foamed glue prefoam, then Repeat step 2) verified again.
Described a kind of method of calibration for the shaping of special-shaped composite foam layer product, before prefoam, in bubble Wrap up one layer of non-porous release film in position of the foam fuse outer surface without foamed glue.
A kind of described method of calibration for the shaping of special-shaped composite foam layer product, the temperature of foamed glue prefoam Spend is 70-80 DEG C.
The invention has the advantages that：
The present invention is using the porous special-shaped Foam Core Sandwich Structure product of verification cover plate test in assembling process Matching relationship, realizes the visualization that foamed glue fills situation.Successfully solve foam core and composite material skin was glued The problems such as Non-Destructive Testing cavity unsticking or cellular glue-line of appearance, bulge, surface irregularity, foam core are collapsed in journey, thoroughly Improve the inside bonding quality and appearance and size precision of product, it is ensured that the smooth payment of product, improve operating efficiency, save A large amount of manufacturing costs.
A kind of verification cover plate and method of calibration for the shaping of special-shaped composite foam layer product of the present invention can be extensive For equipment manufacture industries such as Aeronautics and Astronautics.Such porous verification cover plate is applied to any type of composite foam layer The preparation of product, is particularly suited for the interlayer product shaping of complex-shaped and structure closing.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of certain special-shaped composite foam layer product in the embodiment of the present invention.
Fig. 2 is the right axle for the verifying cover plate survey being molded for special-shaped composite foam layer product in the embodiment of the present invention View.
Fig. 3 is the left axle for the verifying cover plate survey being molded for special-shaped composite foam layer product in the embodiment of the present invention View.
Wherein 1- exterior skins, 2- foam cores, 3- obturages dividing plate, 4- connecting partitions, 5- abnormity composite foam layers Product, 6- verification cover plates, 7- through holes.
Specific embodiment
A kind of verification cover plate for the shaping of special-shaped composite foam layer product, the special-shaped composite foam folder Layer product uses foam core, dividing plate and exterior skin to be glued shaping, and the exterior skin has wedge angle and/or circular arc sector, described The shape of foam core and exterior skin wedge angle and/or the weld filling-foam glue of circular arc sector, the verification cover plate and exterior skin Shape matches, it is described verification cover plate inner profile it is consistent with the inner profile of exterior skin, it is described verify cover plate on wedge angle with/ Or circular arc sector is provided with several through holes.The verification cover plate is that vulcanized rubber verifies cover plate.It is described verification cover plate thickness be 0.2-0.5mm.Wedge angle and/or circular arc sector of the through hole on the verification cover plate are uniformly arranged, the spacing of adjacent through-holes It is 5-10mm.The aperture of the through hole is 2.5mm.
A kind of preparation method of verification cover plate for the shaping of special-shaped composite foam layer product, including following step Suddenly：
1) exterior skin is prepared first, and exterior skin is prepared by exterior skin prepreg laying on forming frock；
2) by exterior skin pattern CNC cutting, and verification cover plate frock preimpregnation is completed by formpiston of the forming frock of exterior skin The laying of material；
3) carry out drilling through hole treatment in the wedge angle of verification cover plate and/or circular arc sector.
A kind of method of calibration for the shaping of special-shaped composite foam layer product, comprises the following steps：
1) pre-assembled, in dividing plate and foam core surface mount glued membrane, exterior skin, foam core and baffle combination is consolidated It is fixed, and wedge angle and/or circular arc sector filling-foam glue between exterior skin and foam core；
2) verify, exterior skin is replaced using cover plate is verified, and foam core and baffle combination, then using verifying on cover plate Through hole observation foam core on foamed glue occupied state, if foamed glue with verify cover plate fit closely, prove to steep herein Foam fuse and verification cover plate no-float；If there is fit clearance, foamed glue is carried out in relevant position trickle fill up or cut Subtract, verification cover plate verification is then reused, untill foam core coordinates gapless with verification cover plate；
3) after verification is finished, verification cover plate is removed, exterior skin is fixed with foam core, baffle combination again.
4) prefoam is verified again, and in foam core outer surface, one layer of non-porous release film is wrapped up at the position without foamed glue, will Exterior skin and foam core, baffle combination are packaged after fixing, enter tank, make foamed glue temperature be 70-80 DEG C carry out it is pre- Foam, then repeat step 2) verified again.
Embodiment
Certain special-shaped composite foam layer product 5 uses 1 exterior skin, 1,1 foam core 2 and two as shown in Figure 1 Individual dividing plate (obturage dividing plate 3, connecting partition 4) splicing is molded with, wherein the wedge angle and circle that are glued in foam core and exterior skin Arc region needs filling-foam glue J-118, it is ensured that coordinate gapless between part.
A kind of verification cover plate for the shaping of special-shaped composite foam layer product
The shape phase of the verification cover plate 6 and certain special-shaped exterior skin 1 of composite foam layer product 5 as Figure 2-3 Match somebody with somebody, the inner profile for verifying cover plate 6 is consistent with the inner profile of exterior skin 1, and the wedge angle and circular arc sector on the verification cover plate 6 are equal Laying has installed several through holes 7, and the aperture of through hole 7 is 2.5mm, and the spacing of adjacent through-holes 7 is 5mm, and the verification cover plate 6 is vulcanization Rubber verifies cover plate 6, and thickness is 0.2-0.5mm.
A kind of preparation method of the verification cover plate for the shaping of special-shaped composite foam layer product
Comprise the following steps：
1) exterior skin 1 is prepared first, and exterior skin 1 is prepared by exterior skin prepreg laying on forming frock；
2) by the pattern CNC cutting of exterior skin 1, and it is pre- to complete verification cover plate frock with the forming frock of exterior skin 1 as formpiston Soak the laying of material；Ensure that verification cover plate 6 is consistent with the inner profile of exterior skin 1.
3) carry out drilling through hole 7 and process in the wedge angle of verification cover plate 6 and circular arc sector.
A kind of method of calibration for the shaping of special-shaped composite foam layer product
Comprise the following steps：
1) pre-assembled, in dividing plate and the surface mount glued membrane of foam core 2, by exterior skin 1, foam core 2 and baffle combination It is fixed, and wedge angle and circular arc sector filling-foam glue between exterior skin 1 and foam core 2；
2) verify, replace exterior skin 1 using cover plate 6 is verified, with foam core 2 and baffle combination, it is ensured that integral outer chi It is very little to meet digital-to-analogue requirement, then using the occupied state of foamed glue on the observation foam core 2 of through hole 7 verified on cover plate 6.If hair Bubble glue is fitted closely with verification cover plate 6, then prove foam core 2 herein and the verification no-float of cover plate 6；If in the presence of between cooperation Gap, then carry out trickle filling up or cutting down, it is to avoid repairing is excessive, then reuses verification cover plate 6 in relevant position to foamed glue Verification, untill foam core 2 coordinates gapless with verification cover plate 6；
3) after verification is finished, verification cover plate 6 is removed, exterior skin 1 is fixed with foam core 2, baffle combination again.
4) prefoam is verified again, in order to prevent foam core 2 and exterior skin 1 to be glued, before prefoam outside foam core 2 One layer of non-porous release film is wrapped up at position of the surface without foamed glue, and exterior skin 1 is fixed with foam core 2, baffle combination again then After be packaged, enter tank, make foamed glue temperature be 70-80 DEG C carrying out prefoam, then repeat step 2) carry out school again Test, check the harmony coordinated between each part after foaming, if cooperation is bad to carry out trickle finishing to foamed glue again.
5) finally verification cover plate 6 and foam core 2 and baffle combination are replaced using exterior skin 1, it is ensured that overall outer dimensions Meet digital-to-analogue requirement.
Because verification cover plate 6 and exterior skin 1 are prepared on same forming frock, the two inner profile is consistent, therefore foam The matching relationship of fuse 2 and verification cover plate 6 also reflects the matching relationship between foam core 2 and exterior skin 1 indirectly, by foaming The increase and decrease assembly relation and bonding quality final to ensure such sandwich of glue loading.
Claims (10)
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| CN100500134C (en) * | 2004-11-02 | 2009-06-17 | 叶耀良 | Preparation for improving bioavailability and effect of golden pheasant and preparation method and purpose thereof |
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| CN1651901A (en) * | 2004-02-05 | 2005-08-10 | 华硕电脑股份有限公司 | Check plate |
| CN101468533A (en) * | 2007-12-25 | 2009-07-01 | 上海卫星工程研究所 | Spacecraft magnesium alloy insert board |
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| CN105252768A (en) | 2016-01-20 |
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