CN104647777A - Composite material curved surface multipoint hot press molding device - Google Patents
Composite material curved surface multipoint hot press molding device Download PDFInfo
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- CN104647777A CN104647777A CN201510102704.4A CN201510102704A CN104647777A CN 104647777 A CN104647777 A CN 104647777A CN 201510102704 A CN201510102704 A CN 201510102704A CN 104647777 A CN104647777 A CN 104647777A
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- wallboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
Abstract
The invention discloses a composite material curved surface multipoint hot press molding device, and relates to the composite material curved surface molding technology. The composite material curved surface multipoint hot press molding device consists of a molding chamber wallboard, a diaphragm, a multipoint reconfigurable mold, a heating device and a vacuum pump; the molding chamber wall board and the diaphragm or an upper part wallboard surround to form a closed composite material molding chamber; the multipoint reconfigurable mold consists of a punch, a unit body and a shape adjusting mechanism and is fixed above a bottom molding chamber wallboard; the heating device is inversely fixed above the diaphragm or inversely fixed at the inner side of the upper part wallboard; the vacuum pump is arranged outside the composite material molding chamber, and the vacuum pump is connected with the composite material molding chamber by virtue of a vacuumizing opening in a lateral molding chamber wallboard. By adopting the composite material curved surface multipoint hot press molding device, the molding time can be reduced by 50 percent, and the equipment cost can be saved by 80 percent. In addition, the composite material curved surface multipoint hot press molding device is suitable for forming a small-sized composite material curves surface of 1 to 10 meters, and also suitable for forming a large-sized composite material curved surface more than 10 meters.
Description
Technical field
The invention discloses a kind of composite curved surface multiple spot hot-press forming device, relate to composite curve generating technology, belong to mechanical engineering field.
Background technology
Composite is now mainly used in the sophisticated technology such as Aeronautics and Astronautics and national defence field.For aviation field, on the state-of-the-art Fourth Generation Fighters of the U.S., composite consumption is 24%-36%, helicopter reaches 46%, and the composite consumption of Eurofighter is up to 40%.In civil aircraft field, drop into commercial operation at present, the composite consumption of state-of-the-art type A380 reached 28%, the Boeing 787 aircraft utilization composite of 50%, and the composite consumption being about to the A350 aircraft emerged will be broken a record further, about 52%.In the period of history quite grown from now on, continuation keeps oneself in these strategic fields " status of the structural material of the richest research potential " by composite, and drives whole industry, the particularly progress of the industrial technology such as high ferro, automobile.Therefore, grasp the forming method of composite curved surface, for promoting that the fast development of the industrial technologies such as China's Aeronautics and Astronautics, national defence, high ferro, automobile has practical significance.Now, the composite curved surface autoclave molding generally used, there is problems such as " molding procedure are complicated, pressure and temperature response is slow, pressurization and the poor stability heated, equipment cost high ", the trend of more difficult adaptation high-performance, the technical development of low cost composite curve generating.For overcoming the above problems, inventor has invented a kind of composite curved surface multiple spot hot-press forming device, works in this respect and has no report.
Summary of the invention
The invention provides a kind of composite curved surface multiple spot hot-press forming device, its object is to solve the problems such as " molding procedure is complicated, pressure and temperature response is slow, pressurization and the poor stability heated, equipment cost high " that the composite curved surface autoclave molding that generally uses exists, improve the innovation of composite curve generating theoretical also actualizing technology, promote the fast development of the industrial technologies such as China's Aeronautics and Astronautics, national defence, high ferro, automobile.Above-mentioned purpose of the present invention is achieved in that accompanying drawings is as follows:
A kind of composite curved surface multiple spot hot-press forming device, form primarily of working chamber's wallboard, barrier film, multiple spot reconfigurable die, heater and vavuum pump, described working chamber wallboard is made up of 4 pieces of side direction working chamber wallboards 1 and 1 block of bottom locular wall plate 2, and itself and barrier film 7 surround airtight composite material forming room; Described barrier film 7 is fixed on side direction working chamber wallboard 1 by discrete flange fixing installation 6, is positioned at above multiple spot reconfigurable die; Described multiple spot reconfigurable die is made up of drift 5, cell cube 4 and Tiao Xing mechanism 3, is fixed on bottom locular wall plate 2; Described heater is inverted by four-column type or planer-type support and is fixed on above barrier film 7; Described vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with composite material forming room by the vacuum orifice 10 on side direction working chamber wallboard 1.
Described working chamber's wallboard also comprises 1 piece of top wallboard 13, is made up of surrounds airtight composite material forming room 4 pieces of side direction working chamber wallboards, 1,1 piece of top wallboard 13 and 1 block of bottom locular wall plate 2; Described heater is inverted and is fixed on inside top wallboard 13, is positioned at above barrier film 7; Described barrier film 7 is fixed on inside side direction working chamber wallboard 1 by band, is positioned at above multiple spot reconfigurable die.
Described top wallboard 13 controls folding by pneumatic pressure cylinder or hydraulic cylinder; Described pneumatic pressure cylinder or hydraulic cylinder are fixed on side direction working chamber wallboard 1.
Described barrier film 7 is 2 pieces of silicon rubber mantles, be sealingly fastened on side direction working chamber wallboard 1, described 2 pieces of silicon rubber mantles surround composite material forming room, and described silicon rubber mantle and 4 pieces of side direction working chamber wallboards 1 and 1 block of bottom locular wall plate 2 surround composite formed curvature control room; Described vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with the composite material forming room that 2 pieces of barrier films 7 form by the vacuum orifice 10 on barrier film 7, is connected with composite formed curvature control room by the vacuum orifice 10 on side direction working chamber wallboard 1.
Described bottom locular wall plate 2 is provided with adjusts shape working hole, and it is positioned at above multiple spot reconfigurable die Tiao Xing mechanism 3; The drift 5 of described multiple spot reconfigurable die, cell cube 4 are positioned at above bottom locular wall plate 2.
Described side direction working chamber wallboard 1 is provided with shaping watch window 15.
Technique effect:
Technical scheme that the present invention will protect is implemented the fact and is shown: based on multiple spot reconfigurable die die face can flexible variety feature, by single multiple spot reconfigurable die substituting many cover high cost invar tangible mold, and " the diaphragm hot-pressing system " of simple structure substituting the autoclave (expensive) of labyrinth; Composite curved surface multiple spot hot-press forming device of the present invention can the autoclave that generally uses of alternative composite material curved surface forming, problems such as " molding procedure are complicated, pressure and temperature response is slow, pressurization and the poor stability heated, equipment cost high " that solve that it exists, realize composite curved surface multiple spot hot-forming, and reduce molding time 50%, save equipment cost 80%.In addition, the present invention is not only applicable to shaping 1-10 rice small size composite curved surface, is also applicable to shaping more than 10 meters large-sized composite material curved surfaces.
Accompanying drawing explanation
Fig. 1 a-c is four-column type composite curved surface multiple spot hot-press forming device structural representation, wherein:
Fig. 1 a is the structure three-dimensional view of four-column type composite curved surface multiple spot hot-press forming device;
Fig. 1 b is the sectional view of four-column type composite curved surface multiple spot hot-press forming device curve generating state;
Fig. 1 c is four-column type composite curved surface multiple spot hot-press forming device curve generating done state sectional view.
Fig. 2 a-c is the composite curved surface multiple spot hot-press forming device structural representation adding top wallboard, wherein:
Fig. 2 a is the structure three-dimensional view of the composite curved surface multiple spot hot-press forming device adding top wallboard;
Fig. 2 b is the sectional view of the composite curved surface multiple spot hot-press forming device curve generating state of adding top wallboard;
Fig. 2 c is the composite curved surface multiple spot hot-press forming device curve generating done state sectional view adding top wallboard.
Fig. 3 a-b is the composite curved surface multiple spot hot-press forming device structural representation of employing 2 pieces of silicon rubber mantles, wherein:
Fig. 3 a is the sectional view of the composite curved surface multiple spot hot-press forming device curve generating state of employing 2 pieces of silicon rubber mantles;
Fig. 3 b is the composite curved surface multiple spot hot-press forming device curve generating done state sectional view of employing 2 pieces of silicon rubber mantles.
Fig. 4 a-b is that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device structural representation adjusting shape working hole, wherein:
Fig. 4 a is the structure three-dimensional view that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device adjusting shape working hole;
Fig. 4 b is that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device curve generating state sectional view adjusting shape working hole.
Fig. 5 a-b is the composite curved surface multiple spot hot-press forming device structural representation that side direction working chamber wallboard is provided with shaping watch window, wherein:
Fig. 5 a is the composite curved surface multiple spot hot-press forming device 3-D view that the side direction working chamber wallboard of closure state is provided with shaping watch window;
Fig. 5 b is the composite curved surface multiple spot hot-press forming device that the side direction working chamber wallboard of folding condition is provided with shaping watch window.
Wherein: 1. side direction working chamber wallboard, 2. bottom locular wall plate, 3. Tiao Xing mechanism, 4. cell cube, 5. drift, 6. discrete flange fixing installation, 7. barrier film, 8. heat gun heater, 9. vavuum pump, 10. vacuum orifice, 11. impressions suppress pad, 12. composites, 13. top wallboards, 14. heat radiation heaters, 15. shaping watch windows.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, further illustrate particular content of the present invention and embodiment thereof.
Composite curved surface multiple spot hot-press forming device of the present invention, forms primarily of working chamber's wallboard, barrier film 7, multiple spot reconfigurable die, heater and vavuum pump 9.Described working chamber's wallboard is made up of 4 pieces of side direction working chamber wallboards 1 and 1 block of bottom locular wall plate 2, and itself and barrier film 7 surround airtight composite material forming room; Described barrier film 7 is fixed on side direction working chamber wallboard 1 by discrete flange fixing installation 6, is positioned at above multiple spot reconfigurable die; Certainly, barrier film 7 also can be fixed on side direction working chamber wallboard 1 by overall flanging or band.Described multiple spot reconfigurable die is made up of drift 5, cell cube 4, Tiao Xing mechanism 3, is fixed on above bottom locular wall plate 2; Certainly, multiple spot reconfigurable die can be substituted by tangible mold, but it is only applicable to single product in enormous quantities production.For the indenture suppressing the discontinuous drift 5 of multiple spot reconfigurable die to produce, in forming process, above multiple spot reconfigurable die, lay impression suppresses pad 11; Impression suppresses pad 11 material can be polyurethane, also can be the materials such as spring steel.For preventing composite 12 and impression from suppressing pad 11 adhesion, suppress lay release cloth above pad 11 at impression.Described heater is inverted by four-column type or planer-type support and is fixed on above barrier film 7, and heating means can be direct radiant heat method, heat gun heating or infrared radiation heating method.Described vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with composite material forming room by the vacuum orifice 10 on side direction working chamber wallboard 1.Certainly, described working chamber's wallboard also can be made up of 4 pieces of side direction working chamber wallboards, 1,1 piece of top wallboard 13 and 1 block of bottom locular wall plate 2, and it surrounds airtight composite material forming room; Described heater is inverted and is fixed on inside top wallboard 13, is positioned at above barrier film 7; Described barrier film 7 is fixed on inside side direction working chamber wallboard 1 by band, is positioned at above multiple spot reconfigurable die.Described top wallboard 13 can control folding by pneumatic pressure cylinder, also can control folding by hydraulic cylinder; Described pneumatic pressure cylinder or hydraulic cylinder can be fixed on side direction working chamber wallboard 1.Described barrier film 7 is 2 pieces of silicon rubber mantles, to be sealingly fastened on side direction working chamber wallboard 1, to surround composite material forming room; Described vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with the composite material forming room that 2 pieces of barrier films 7 form by the vacuum orifice 10 on barrier film 7, is connected with composite formed curvature control room by the vacuum orifice 10 on side direction working chamber wallboard 1; Thus under the effect of vacuum pressure load, realize the subsides mould with die face.For reducing forming temperature to the impact of multiple spot reconfigurable die Tiao Xing mechanism 3, described bottom locular wall plate 2 is provided with adjusts shape working hole, and it is positioned at above multiple spot reconfigurable die Tiao Xing mechanism 3; The drift 5 of described multiple spot reconfigurable die, cell cube 4 are positioned at above bottom locular wall plate 2.For ease of observing composite 12 forming process, described side direction working chamber wallboard 1 is provided with shaping watch window 15.
Fig. 1 a-c is four-column type composite curved surface multiple spot hot-press forming device structural representation, wherein: Fig. 1 a is the structure three-dimensional view of four-column type composite curved surface multiple spot hot-press forming device; Fig. 1 b is the sectional view of four-column type composite curved surface multiple spot hot-press forming device curve generating state; Fig. 1 c is four-column type composite curved surface multiple spot hot-press forming device curve generating done state sectional view.Four-column type composite curved surface multiple spot hot-press forming device forms primarily of working chamber's wallboard, barrier film 7, multiple spot reconfigurable die, heater and vavuum pump 9.4 pieces of side direction working chamber wallboards, 1,1 block of bottom locular wall plate 2 and barrier film 7 surround airtight composite material forming room.Barrier film 7 is fixed on side direction working chamber wallboard 1 by discrete flange fixing installation 6, is positioned at above multiple spot reconfigurable die; Multiple spot reconfigurable die is made up of drift 5, cell cube 4, Tiao Xing mechanism 3, is fixed on above bottom locular wall plate 2.For the indenture suppressing the discontinuous drift 5 of multiple spot reconfigurable die to produce, in forming process, above multiple spot reconfigurable die, lay impression suppresses pad 11.For preventing composite 12 and impression from suppressing pad 11 adhesion, suppress lay release cloth above pad 11 at impression.Heater is inverted by four-column type support and is fixed on above barrier film 7, and heating means adopt heat gun heating, and the hot-blast spray nozzle namely by heating carries out thermal convection current heating to composite 12.Vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with composite material forming room by the vacuum orifice 10 on side direction working chamber wallboard 1; Thus under the effect of vacuum pressure load, realize the subsides mould of composite 12 curved surface and multiple spot reconfigurable die profile.
Fig. 2 a-c is the composite curved surface multiple spot hot-press forming device structural representation adding top wallboard, wherein: Fig. 2 a is the structure three-dimensional view of the composite curved surface multiple spot hot-press forming device adding top wallboard; Fig. 2 b is the sectional view of the composite curved surface multiple spot hot-press forming device curve generating state of adding top wallboard; Fig. 2 c is the composite curved surface multiple spot hot-press forming device curve generating done state sectional view adding top wallboard.4 pieces of side direction working chamber wallboards, 1,1 piece of top wallboard 13, and 1 block of bottom locular wall plate 2 surrounds airtight composite material forming room, top wallboard 13 can control folding by pneumatic pressure cylinder.Heater is inverted and is fixed on inside top wallboard 13, is positioned at above barrier film 7; Heating means adopt resistance wire radiant heating, are heated composite 12 by the heat radiation of resistance wire.Barrier film 7 is fixed on inside side direction working chamber wallboard 1 by band, is positioned at above multiple spot reconfigurable die.For the indenture suppressing the discontinuous drift 5 of multiple spot reconfigurable die to produce, in forming process, above multiple spot reconfigurable die, lay impression suppresses pad 11.For preventing composite 12 and impression from suppressing pad 11 adhesion, suppress lay release cloth above pad 11 at impression.Vavuum pump 9 is positioned at composite material forming outdoor, and it is connected with composite material forming room by the vacuum orifice on side direction working chamber wallboard 1; Thus under the effect of vacuum pressure load, realize the subsides mould of composite 12 curved surface and multiple spot reconfigurable die profile.
Fig. 3 a-b is the composite curved surface multiple spot hot-press forming device structural representation of employing 2 pieces of silicon rubber mantles, wherein: Fig. 3 a is the sectional view of the composite curved surface multiple spot hot-press forming device curve generating state of employing 2 pieces of silicon rubber mantles; Fig. 3 b is the composite curved surface multiple spot hot-press forming device curve generating done state sectional view of employing 2 pieces of silicon rubber mantles.2 pieces of silicon rubber flexible film seal are fixed on side direction working chamber wallboard 1, surround composite material forming room.Vavuum pump 9 is positioned at composite material forming outdoor, it is connected with the composite material forming room that 2 pieces of barrier films 7 form by the vacuum orifice 10 on barrier film 7, vacuumizing of the composite material forming room that 2 pieces of silicon rubber mantles are surrounded, namely realizes the clamping of silicon rubber mantle to composite 12 sheet material.Bulb heat radiation heater 14 is still positioned at above barrier film 7, can realize heating to composite 12.Barrier film 7 is fixed on inside side direction working chamber wallboard 1 by band, is positioned at above multiple spot reconfigurable die; Be connected with composite formed curvature control room by the vacuum orifice 10 on side direction working chamber wallboard 1, composite 12 sheet material of barrier film 7 clamping and the subsides mould of multiple spot reconfigurable die die face can be realized under the effect of vacuum pressure load.
Fig. 4 a-b is that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device structural representation adjusting shape working hole, wherein: Fig. 4 a is the structure three-dimensional view that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device adjusting shape working hole; Fig. 4 b is that bottom locular wall plate is provided with the four-column type composite curved surface multiple spot hot-press forming device curve generating state sectional view adjusting shape working hole.Bottom locular wall plate 2 is provided with adjusts shape working hole, and it is positioned at above multiple spot reconfigurable die Tiao Xing mechanism 3; And the drift 5 of multiple spot reconfigurable die, cell cube 4 are positioned at above bottom locular wall plate 2.Bottom locular wall plate 2 is provided with adjusts shape working hole, can reduce the impact of forming temperature on multiple spot reconfigurable die Tiao Xing mechanism 3.
Fig. 5 a-b is the composite curved surface multiple spot hot-press forming device structural representation that side direction working chamber wallboard is provided with shaping watch window, wherein: Fig. 5 a is the composite curved surface multiple spot hot-press forming device 3-D view that the side direction working chamber wallboard of closure state is provided with shaping watch window; Fig. 5 b is the composite curved surface multiple spot hot-press forming device that the side direction working chamber wallboard of folding condition is provided with shaping watch window.Side direction working chamber wallboard 1 is provided with shaping watch window 15, can observe composite 12 forming process.
Illustrate the curve generating process of composite curved surface multiple spot hot-press forming device below:
First, according to composite formed curvature, conversion multiple spot reconfigurable die profile is to corresponding curvature.Then, above multiple spot reconfigurable die, lay impression suppresses pad, release cloth, composite material sheet or material prepreg successively, and is fixed on side direction working chamber wallboard by discrete flange fixing installation, overall flanging or band by barrier film.Finally, open the heater being positioned at diaphragm, realize composite heating below barrier film; Meanwhile, start the vavuum pump being positioned at composite material forming outdoor, be connected with composite formed curvature control room by the vacuum orifice on side direction working chamber wallboard, thus under the effect of vacuum pressure load, realize the subsides mould with die face.After composite curve generating, after the cooling of certain hour, open the composite curved-surface piece that barrier film extraction device is shaped.The present invention successfully constructs " low cost, sustainable, the green composite curved surface multiple spot hot forming technology " with prospects for commercial application, for composite curve generating provides flexible manufacturing scheme.
Claims (6)
1. a composite curved surface multiple spot hot-press forming device, primarily of working chamber's wallboard, barrier film, multiple spot reconfigurable die, heater and vavuum pump composition, is characterized in that:
Described working chamber wallboard is made up of 4 pieces of side direction working chambers wallboard (1) and 1 piece of bottom locular wall plate (2), and itself and barrier film (7) surround airtight composite material forming room; Described barrier film (7) is fixed in side direction working chamber wallboard (1) by discrete flange fixing installation (6), is positioned at above multiple spot reconfigurable die; Described multiple spot reconfigurable die is made up of drift (5), cell cube (4) and Tiao Xing mechanism (3), is fixed on bottom locular wall plate (2); Described heater is inverted by four-column type or planer-type support and is fixed on barrier film (7) top; Described vavuum pump (9) is positioned at composite material forming outdoor, and it is connected with composite material forming room by the vacuum orifice (10) in side direction working chamber wallboard (1).
2. a kind of composite curved surface multiple spot hot-press forming device according to claim 1, is characterized in that:
Described working chamber's wallboard also comprises 1 piece of top wallboard (13), is made up of surrounds airtight composite material forming room 4 pieces of side direction working chambers wallboard (1), 1 piece of top wallboard (13) and 1 piece of bottom locular wall plate (2); Described heater is inverted and is fixed on top wallboard (13) inner side, is positioned at barrier film (7) top; Described barrier film (7) is fixed on inner side, side direction working chamber wallboard (1) by band, is positioned at above multiple spot reconfigurable die.
3. composite curved surface multiple spot hot-press forming device according to claim 2, is characterized in that:
Described top wallboard (13) controls folding by pneumatic pressure cylinder or hydraulic cylinder; Described pneumatic pressure cylinder or hydraulic cylinder are fixed in side direction working chamber wallboard (1).
4. the composite curved surface multiple spot hot-press forming device according to any one of claims 1 to 3, is characterized in that:
Described barrier film (7) is 2 pieces of silicon rubber mantles, be sealingly fastened in side direction working chamber wallboard (1), described 2 pieces of silicon rubber mantles surround composite material forming room, and described silicon rubber mantle and 4 pieces of side direction working chambers wallboard (1) and 1 piece of bottom locular wall plate (2) surround composite formed curvature control room; Described vavuum pump (9) is positioned at composite material forming outdoor, it is connected with the composite material forming room that 2 pieces of barrier films (7) form by the vacuum orifice (10) on barrier film (7), is connected with composite formed curvature control room by the vacuum orifice (10) in side direction working chamber wallboard (1).
5. the composite curved surface multiple spot hot-press forming device according to any one of Claims 1-4, is characterized in that:
Described bottom locular wall plate (2) is provided with adjusts shape working hole, and it is positioned at multiple spot reconfigurable die Tiao Xing mechanism (3) top; The drift (5) of described multiple spot reconfigurable die, cell cube (4) are positioned at bottom locular wall plate (2) top.
6. the composite curved surface multiple spot hot-press forming device according to any one of claim 1 to 5, is characterized in that:
Described side direction working chamber wallboard (1) is provided with shaping watch window (15).
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| CN201510102704.4A CN104647777A (en) | 2015-03-09 | 2015-03-09 | Composite material curved surface multipoint hot press molding device |
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| CN106079389A (en) * | 2016-06-20 | 2016-11-09 | 上海航天精密机械研究所 | Resinae sheet material multiple spot thermal forming device and method |
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