CN1827341A - Method and device for forming composite conical shell zero-degree layer - Google Patents
Method and device for forming composite conical shell zero-degree layer Download PDFInfo
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- CN1827341A CN1827341A CN 200610039430 CN200610039430A CN1827341A CN 1827341 A CN1827341 A CN 1827341A CN 200610039430 CN200610039430 CN 200610039430 CN 200610039430 A CN200610039430 A CN 200610039430A CN 1827341 A CN1827341 A CN 1827341A
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Abstract
The invention provides a method for molding the composite taper case 0-degree layer and relative device. First, slicing the constant breadth prepreg belt into two right-angle trapezia prepreg plates according to preset slicing length and angle, wherein, one is transcribed to one liner film after peeling off and first arranging it on the surface of taper case; turning core mould a certain angle, then arranging another one on its side edge to form a isosceles trapezia prepreg plates, while several this one can form the 0-degree layer of taper case. The inventive device adds a additive on the head of general layer, which comprises a air-powered instruction device, a additive flexible compression roller and a transcribed roller, while the air-powered instruction device and the transcribed roller transcribed the right angle trapezia prepreg belt, and the additive flexible compression roller is used to lay the transcribed prepreg belt on the surface of taper case. The invention can improve the molding efficiency, reduce the waste rate and reduce the producing cost.
Description
Technical field
The present invention relates to the method and the device of 0 ° of shop layer of a kind of forming composite conical shell, belong to composite automated tape-laying technical field.
Background technology
Conical shell is widely used in aerospace field, and composite especially carbon fibre composite conical shell has the advantage of light-high-strength, the high rigidity of structure, uses more and more widely.For example vehicle and payload is connected changeover portion, jet pipe, airborne radar cover etc.According to performance requirement, the composite conical shell all needs to become the fiber lay down layer of 0 ° of direction to guarantee vertical performance with cone generatrices.At present, the main manufacture methods of composite conical shell comprises manual laying of preimpregnation cloth and fiber winding forming.Manual laying mainly be preimpregnation cloth size as required is cut into fan-shaped, then with its successively laying on mould; Manual laying can be realized the laying of 0 ° of direction, but the scrap rate height, production efficiency is low and quality is unstable.Twining bullet is difficult for solid matter, winding angle difficult design, can not realizes the equal thickness winding, the fiber that especially can not carry out 0 ° of direction twines, unless link up with winding, other moulding means (as manual laying) must be aided with and 0 ° of direction shop layer could be guaranteed, reach performance requirement.
The automated tape-laying technology is to come in to develop composite automatic forming process technology faster, employing has the unidirectional prepreg tape of isolating lining paper, it is cut out, location, laying, roll-in all adopt Numeric Control Technology to finish, finish by the automated tape-laying machine, can realize the automatic laying of multiple direction, high efficiency, low cost.But existing automated tape-laying machine adopts equiband preimpregnation band, is used for small curve molding components such as aerofoil, wallboard more, can't directly realize the lay of conical shell, more can't utilize the automated tape-laying technology to carry out 0 ° of shop of conical shell formable layer.
Summary of the invention
At the demand of aerospace field to 0 ° of shop layer of composite conical shell, for solve 0 ° of lay-up process scrap rate of the fan-shaped preimpregnation molding with cloth of manual laying conical shell height, production efficiency is low and problem such as quality instability, utilize the advantage that automated tape-laying efficient height, scrap rate are low, can realize any direction lay, the present invention proposes the method and the device of 0 ° of shop layer of a kind of forming composite conical shell.
The method of 0 ° of shop layer of a kind of forming composite conical shell is characterized in that being made up of following steps:
(1), under the prerequisite of not cutting off backing paper, wide preimpregnation band is cut into two right-angled trapezium preimpregnation straps, the calculating of Cutting Length L and cutting angle m according to predetermined Cutting Length L and cutting angle m:
L=R-rsinm; Rctgm+rcosm=t (0＜m＜90 °) is in the formula: m-preimpregnation band cutting angle; T-preimpregnation bandwidth; R-conical shell developed surface path; The big footpath of R-conical shell developed surface; L-preimpregnation band Cutting Length;
(2), will be wherein a slice right-angled trapezium preimpregnation strap peel off, transcribe on the lining form, then with its lay to the conical shell surface;
(4), make core rotational angle n, the calculating of core corner n:
(5), remaining right-angled trapezium preimpregnation strap is formed an isosceles trapezoid preimpregnation strap jointly to the right-angled trapezium preimpregnation strap side of first lay on the lay backing paper;
(6), make core rotational angle n, the calculating of core corner n:
(7), repeat (1) to (6) step process, a plurality of isosceles trapezoid preimpregnation straps can be formed 0 ° of shop layer of conical shell.
The device of 0 ° on a kind of forming composite conical shell shop layer comprises that preimpregnation band storage tep reel, cutter sweep, main flexible pressure roller, pressure roller cylinder, backing paper recovering tray, shop take the lead total framework, it is characterized in that:
This device comprises that also acting in conjunction peels off the pneumatic finger device of transcribing and transcribe roller to realize the preimpregnation strap, and the additional flexibility pressure roller that the preimpregnation strap of transcribing is laid in the conical shell surface, wherein pneumatic finger device is made of framework, cylinder and finger, be fixed on the shop and take the lead on total framework, its finger points to vertical with the preimpregnation band direction of motion; Transcribing roller is a kind of rigidity roller, is used for the lining form motion is transcribed and driven to the right-angled trapezium preimpregnation strap of needs, is installed in the another side of preimpregnation band, corresponding with pneumatic finger device, its axis and preimpregnation band transverse cross-section parallel; The additional flexibility pressure roller is installed in the shop by the pressure roller cylinder and takes the lead on total framework, and by a lining form with transcribe roller and form synchronism mechanism.
Advantage of the present invention: by wide preimpregnation band is cut, peels off and transcribes, proposed the method and apparatus of the automated tape-laying moulding of 0 ° of shop layer of conical shell, can be used for 0 ° of the fan-shaped preimpregnation molding with cloth of instead of manual laying conical shell and spread the method for layer, improve shaping efficiency, reduce scrap rate; By taking the lead to install attachment device additional in general shop, realize the automated tape-laying moulding of 0 ° of shop layer of conical shell, need not make new shop and take the lead, reduced production cost; According to the change of preimpregnation band cutting angle, can satisfy the multiple demand that the aerospace composite member is made the field.
Description of drawings
Fig. 1 is the geometric properties of conical shell.
Fig. 2 is a tape backing preimpregnation band side view.
Fig. 3 is the cutting schematic diagram of one section preimpregnation band.
Fig. 4 is the schematic diagram of transcribing of right-angled trapezium preimpregnation strap.Wherein (a) is its form on backing paper; (b) be that it transcribes the form on the lining form.
Fig. 5 the invention provides the schematic diagram that take the lead the shop.
Schematic diagram when Fig. 6 is the work of pneumatic finger device.
Fig. 7 is the additional flexibility pressure roller and transcribes the schematic diagram that concerns between the roller.
Front view when Fig. 8 is flexible pressure roller automated tape-laying.
Fig. 9 is the process schematic diagram that carries out 0 ° of shop of conical shell layer lay.Wherein (c) is first right-angled trapezium preimpregnation of lay strap schematic diagram; (d) be form after first lay finished; (e) be second schematic diagram of lay.
Figure 10 is the fan out figure of 0 ° of shop layer of preimpregnation band lay conical shell.
Figure 11 is a conical shell rotational angle n schematic diagram.
Wherein: 1-preimpregnation band storage tep reel; The 2-cutter sweep; 3-transcribes roller; The 4-lining form; 5,8-pressure roller cylinder; 6-additional flexibility pressure roller; The flexible pressure roller of 7-master; 9-backing paper; 10-backing paper recovering tray; The pneumatic finger device of 11-; 12-takes the lead the shop; Total framework is taken the lead in 13-shop; 14-tape backing preimpregnation band; 15-preimpregnation band; The 16-conical shell; The pneumatic finger device framework of 17-; 18,19,20,21,22-cylinder; 23,24,25,26,27-finger.
The specific embodiment
Shown in Fig. 5,6,7, apparatus of the present invention are described.
The automated tape-laying device of prior art generally comprises preimpregnation band storage tep reel 1, cutter sweep 2, heater (not shown), main flexible pressure roller 7, pressure roller cylinder 8, backing paper recovering tray 10 and shop and takes the lead total framework 13.Apparatus of the present invention mainly are to have installed pneumatic finger device 11 additional on taking the lead the basis in general shop, transcribe roller 3 and additional flexibility pressure roller 6, wherein pneumatic finger device 11 constitutes (as shown in Figure 6) by pneumatic finger framework 17, cylinder 18-22, finger 23-27 etc., be fixed on the shop and take the lead on total framework 13, its finger points to vertical with tape backing preimpregnation band 14 directions of motion; Transcribe roller 3 and be installed in the another side of tape backing preimpregnation band 14, corresponding with pneumatic finger device 11, be used for required right-angled trapezium preimpregnation strap being transcribed on the lining form 4 and being driven lining form 4 motions from backing paper 9 with pneumatic finger device 11 actings in conjunction; Additional flexibility pressure roller 6 is installed in the shop by pressure roller cylinder 5 and takes the lead on total framework 13, and by lining form 4 with transcribe roller 3 and constitute synchronism mechanism (as shown in Figure 7).
The present invention will be further elaborated according to accompanying drawing below:
Fig. 1 is the size schematic diagram of conical shell.If the awl half-angle of conical shell is α, the big footpath of cone is d1, and path is d2, and fan encircled after then conical shell launched segment angle c, long radius R, minor radius r are as follows respectively:
c＝360°×sinα (1)
Fig. 2 is a tape backing preimpregnation band side view.Tape backing preimpregnation band 14 is made up of backing paper 9 and preimpregnation band 15, and preimpregnation band 15 adheres on the backing paper 9, with 9 motions of backing paper.
Fig. 3 is the cutting mode of one section preimpregnation band.Under the prerequisite of not cutting brokenly backing paper, preimpregnation band 15 is cut into two right-angled trapezium preimpregnation straps according to predetermined Cutting Length L and cutting angle m.The Cutting Length L of preimpregnation band, cutting angle m asks method as follows:
L＝R-rsinm (4)
Rctgm+rcosm＝t(0＜m＜90°) (5)
Wherein: m-preimpregnation band cutting angle, t-preimpregnation bandwidth, r-conical shell developed surface path, the big footpath of R-conical shell developed surface, L-preimpregnation band Cutting Length.
Fig. 4 is that right-angled trapezium preimpregnation strap is transcribed schematic diagram.4 (a) are the form of right-angled trapezium preimpregnation strap on backing paper 9; 4 (b) are that it transcribes the form on another lining form 4.
Fig. 5 the invention provides the schematic diagram that take the lead the shop.This shop takes the lead 12 mainly to comprise preimpregnation band storage tep reel 1, cutter sweep 2, pneumatic finger device 11, heater (not shown), additional flexibility pressure roller 6, critical pieces such as main flexible pressure roller 7, pressure roller cylinder 5,8 and backing paper recovering tray 10.During lay, tape backing preimpregnation band 14 is drawn out of preimpregnation band storage tep reel 1 with backing paper 9 under the acting in conjunction of preimpregnation band storage tep reel 1 and backing paper recovering tray 10, at first enter cutter sweep 2, under the prerequisite of not cutting off backing paper 9, cut into two right-angled trapezium preimpregnation straps according to predetermined length L (calculating) and predetermined angular m (calculating) by formula (5) by formula (4), entering pneumatic finger device 11 subsequently peels off first right-angled trapezium preimpregnation strap and transcribe on the lining form 4 from backing paper 9, move to additional flexibility pressure roller 6 places with lining form 4, and be laid in conical shell 16 surfaces by additional flexibility pressure roller 6.Remaining right-angled trapezium preimpregnation strap continues motion with backing paper 9 on the backing paper 9, after reorientating, be laid in conical shell 16 surfaces by main flexible pressure roller 7, isosceles trapezoid preimpregnation strap of two common compositions of right-angled trapezium preimpregnation strap, backing paper 9 is reclaimed by backing paper recovering tray 10.
Schematic diagram when Fig. 6 is 11 work of pneumatic finger device, the main effect of this device is that the right-angled trapezium preimpregnation strap that needs are peeled off is peeled off and transcribed on the lining form 4 from backing paper 9, and its principle is to utilize the viscosity between lining form 4 and the preimpregnation band 15 to realize greater than the viscosity between backing paper 9 and the preimpregnation band 15.It is good with viscosity between the preimpregnation band 15 greater than the viscosity between backing paper 9 and the preimpregnation band 15 that the material of lining form 4 is selected with it, lining form 4 is heated the viscosity that can improve between itself and the preimpregnation band 15.This device is made of pneumatic finger framework 17, cylinder 18-22, finger 23-27, and each finger is installed on the framework 17 by corresponding cylinder, by the stretching motion of individual cylinder.When finger and transcribe between the roller 3 when gapped, tape backing preimpregnation band 14 can free-running operation.When entering pneumatic finger device 11 after tape backing preimpregnation band 14 comes out and transcribing space between the roller 3 from cutter sweep 2, digital control system works independently according to preimpregnation belt shape needs control cylinder, partial cylinders (as the cylinder among this figure 18,19,20) elongation promotes coupled finger to roller 3 motions, the one side of first right-angled trapezium preimpregnation strap not glued backing paper 9 contacts with lining form 4, utilizes the big characteristics of relative tack that it is peeled off and be transcribed into lining form 4 from backing paper 9.This moment, two right-angled trapezium preimpregnation straps were respectively with lining form 4 and 9 motions of backing paper.Cylinder shrinks according to predetermined order and will point withdrawal in the course of work, is beneficial to first right-angled trapezium preimpregnation strap transcribed fully and second do not peeled off, and be beneficial to tape backing preimpregnation band 14 and pass through smoothly therein.The work of pneumatic finger device is controlled by digital control system.After first right-angled trapezium preimpregnation strap transcribed and finished, cylinder shrank fully, and finger is away from transcribing roller 3, and tape backing preimpregnation band 14 can freely pass through, and is beneficial to the lay of second right-angled trapezium preimpregnation strap.
Fig. 7 is additional flexibility pressure roller 6 and transcribes graph of a relation between the roller 3 that lining form 4 will be transcribed roller 3 and be formed the structure that is synchronized with the movement with additional flexibility pressure roller 6.The rotation that roller 3 is transcribed in utilization drives lining form 4 motions, and so that first right-angled trapezium preimpregnation strap moved to additional flexibility pressure roller 6 places, pressure roller cylinder 5 is used for additional flexibility pressure roller 6 being lifted away from or stretching to conical shell 16 surfaces.
Front view when Fig. 8 is flexible pressure roller shop band, the curvature that flexible pressure roller 6 or 7 can adapt to conical shell is laid in conical shell 16 surfaces with the preimpregnation strap.
Fig. 9 is the lay process schematic diagram when carrying out 0 ° of shop of conical shell layer lay.The lay starting point is the miner diameter end of conical shell 16, and terminal point is a bigger diameter end, and the lay direction as shown by arrows.
After transcribing through cutting, right-angled trapezium preimpregnation strap, the preimpregnation band 14 of tape backing enters the lay position under the flexible pressure roller 6,7, when lay begins, 8 contractions of pressure roller cylinder will be led flexible pressure roller 7 and be lifted away from the conical shell surface, cylinder 5 elongations are stretched to the conical shell surface with additional flexibility pressure roller 6, first right-angled trapezium preimpregnation strap is laid in conical shell 16 surfaces by additional flexibility pressure roller 6 under the drive of lining form 4, shown in figure (a).In the lay process, if first preimpregnation strap peeled off from backing paper 9 fully, then pneumatic finger device quits work, and cylinder shrinks will point fully to be regained, and leaves and transcribes roller 3.
After first right-angled trapezium preimpregnation strap lay finished, the shop takes the lead 12 to quit work, on carry.Core rotational angle n (as shown in figure 11).12 starting points that move to next lay process are taken the lead in this moment shop, shown in figure (b), at this moment, and 1 backrush of preimpregnation band storage tep reel, second right-angled trapezium preimpregnation strap moves to main flexible pressure roller 7 places with backing paper 9.Pressure roller cylinder 5 shrinks raises additional flexibility pressure roller 6.8 elongations of pressure roller cylinder will be led flexible pressure roller 7 and be depressed into the lay position, begin new shop band process.Core rotational angle n asks method as follows:
The process of second right-angled trapezium preimpregnation of main flexible pressure roller 7 laies of figure (c) expression strap.The lay direction as shown by arrows, the lay starting point is the conical shell bigger diameter end.After lay was finished, two right-angled trapezium preimpregnation straps in the arrangement on conical shell 16 surfaces as shown in the figure.In the lay process, when the right-angled trapezium preimpregnation strap that needs in next section preimpregnation band to transcribe moves to when transcribing roller 3 positions, pneumatic finger device 11 is started working, and it is peeled off from backing paper 9.
With core rotational angle n (as shown in figure 11), begin the lay of next process.
Repeat 0 ° of shop layer that aforementioned process can realize conical shell.Its fan out figure as shown in figure 10.
Claims (3)
1, the method for 0 ° of shop layer of a kind of forming composite conical shell is characterized in that being made up of following steps:
(1), under the prerequisite of not cutting off backing paper, wide preimpregnation band is cut into the identical right-angled trapezium preimpregnation strap of two plate shapes, the calculating of Cutting Length L and cutting angle m with cutting angle m according to predetermined Cutting Length L:
L=R-rsinm; Rctgm+rcosm=t (0＜m＜90 °) is in the formula: m-preimpregnation band cutting angle; T-preimpregnation bandwidth; R-conical shell developed surface path; The big footpath of R-conical shell developed surface; L-preimpregnation band Cutting Length;
(2), will be wherein a slice right-angled trapezium preimpregnation strap peel off, transcribe on the lining form, then with its lay to the conical shell surface;
(4), make core rotational angle n, the calculating of core corner n:
(5), remaining trapezoidal preimpregnation strap is formed an isosceles trapezoid preimpregnation strap jointly to the trapezoidal preimpregnation strap side of first lay on the lay backing paper;
(6), make core rotational angle n, the calculating of core corner n:
(7), repeat (1) to (6) step process, a plurality of isosceles trapezoid preimpregnation straps can be formed 0 ° of shop layer of conical shell.
2, the device of 0 ° of shop layer of a kind of forming composite conical shell, comprise that preimpregnation band storage tep reel (1), cutter sweep (2), main flexible pressure roller (7), pressure roller cylinder (8), backing paper recovering tray (10), shop take the lead (12), shop and take the lead total framework (13), it is characterized in that:
This device comprises that also acting in conjunction peels off the pneumatic finger device (11) of transcribing and transcribe roller (3) to realize the preimpregnation strap, and the additional flexibility pressure roller (6) that the preimpregnation strap of transcribing is laid in the conical shell surface, wherein pneumatic finger device (11) is made of framework (17), cylinder (18-22) and finger (23-27), be fixed on the shop and take the lead on total framework (13), its finger points to vertical with the preimpregnation band direction of motion; Transcribing roller (3) is a kind of rigidity roller, is used for lining form (4) motion is transcribed and driven to the trapezoidal preimpregnation strap of needs, is installed in the another side of preimpregnation band, corresponding with pneumatic finger device (11), its axis and preimpregnation band transverse cross-section parallel; Additional flexibility pressure roller (6) is installed in the shop by pressure roller cylinder (5) and takes the lead on total framework (13), and by a lining form (4) with transcribe roller (3) and form synchronism mechanism.
3, the device of 0 ° of shop layer of a kind of forming composite conical shell according to claim 2, it is characterized in that: the viscosity of described lining form (4) and preimpregnation interband is greater than the viscosity of backing paper (9) with the preimpregnation interband.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610039430 CN1827341A (en) | 2006-04-11 | 2006-04-11 | Method and device for forming composite conical shell zero-degree layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039430 CN1827341A (en) | 2006-04-11 | 2006-04-11 | Method and device for forming composite conical shell zero-degree layer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092138A (en) * | 2010-12-13 | 2011-06-15 | 成都飞机工业（集团）有限责任公司 | Method for automatically laying tape and preheating prepreg tape by hot air |
| CN102819683A (en) * | 2012-08-09 | 2012-12-12 | 上海电气集团上海电机厂有限公司 | Blanking size computing system for abnormal-shape sector ring workpiece |
| CN103978698A (en) * | 2014-05-21 | 2014-08-13 | 航天材料及工艺研究所 | Method for forming composite conical shell with end frame |
| CN104992018A (en) * | 2015-07-01 | 2015-10-21 | 南京航空航天大学 | Programming algorithm for conical large-angle automatic fiber placement |
| CN109571984A (en) * | 2018-11-12 | 2019-04-05 | 中国航空工业集团公司基础技术研究院 | A kind of method of manufacturing technology of long fiber reinforcement composite pipe |
| CN111231288A (en) * | 2020-01-17 | 2020-06-05 | 大连理工大学 | Method for calculating width of rubber winding molding rubber belt |
| CN113183489A (en) * | 2021-05-07 | 2021-07-30 | 科泰思(中国)复合材料有限责任公司 | Arc-shaped fiber composite material laying layer and laying method thereof |
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2006
- 2006-04-11 CN CN 200610039430 patent/CN1827341A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092138A (en) * | 2010-12-13 | 2011-06-15 | 成都飞机工业（集团）有限责任公司 | Method for automatically laying tape and preheating prepreg tape by hot air |
| CN102819683A (en) * | 2012-08-09 | 2012-12-12 | 上海电气集团上海电机厂有限公司 | Blanking size computing system for abnormal-shape sector ring workpiece |
| CN103978698A (en) * | 2014-05-21 | 2014-08-13 | 航天材料及工艺研究所 | Method for forming composite conical shell with end frame |
| CN103978698B (en) * | 2014-05-21 | 2016-03-30 | 航天材料及工艺研究所 | A kind of composite material taper housing forming method of band edge frame |
| CN104992018A (en) * | 2015-07-01 | 2015-10-21 | 南京航空航天大学 | Programming algorithm for conical large-angle automatic fiber placement |
| CN104992018B (en) * | 2015-07-01 | 2018-04-13 | 南京航空航天大学 | A kind of programmed algorithm of circular cone wide-angle automatic fiber placement |
| CN109571984A (en) * | 2018-11-12 | 2019-04-05 | 中国航空工业集团公司基础技术研究院 | A kind of method of manufacturing technology of long fiber reinforcement composite pipe |
| CN111231288A (en) * | 2020-01-17 | 2020-06-05 | 大连理工大学 | Method for calculating width of rubber winding molding rubber belt |
| CN111231288B (en) * | 2020-01-17 | 2021-12-10 | 大连理工大学 | Method for calculating width of rubber winding molding rubber belt |
| CN113183489A (en) * | 2021-05-07 | 2021-07-30 | 科泰思(中国)复合材料有限责任公司 | Arc-shaped fiber composite material laying layer and laying method thereof |
| CN113183489B (en) * | 2021-05-07 | 2022-04-22 | 科泰思(中国)复合材料有限责任公司 | Arc-shaped fiber composite material laying layer and laying method thereof |
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