CN108327320B - Spar mould - Google Patents
Spar mould Download PDFInfo
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- CN108327320B CN108327320B CN201810187099.9A CN201810187099A CN108327320B CN 108327320 B CN108327320 B CN 108327320B CN 201810187099 A CN201810187099 A CN 201810187099A CN 108327320 B CN108327320 B CN 108327320B
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- Prior art keywords
- filling block
- filling
- boss
- spar
- frame body
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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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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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
- B29C70/443—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 and impregnating by vacuum or injection
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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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
Abstract
The invention provides a spar mould, which is used for a thermal diaphragm forming process of a composite spar and comprises the following steps: forming a boss (1); the frame body (2) is detachably arranged around the molding boss (1); the filling block (3) is arranged in a space formed by the molding boss (1) and the frame body (2), and the shape of the filling block is matched with that of the space so as to fill the space; the upper surfaces of the frame body (2) and the filling block (3) and the upper surface of the molding boss (1) are in the same plane. The spar die solves the problems of large positioning error, self-weight deformation and the like of a prepreg flat plate in the positioning and moving process in the thermal diaphragm forming process, reduces the uncertain influence caused by the movement of the prepreg flat plate, ensures the positioning accuracy and stability of the prepreg flat plate in the positioning and moving process, has scientific and reasonable structure, reasonable and easy combination and disassembly mode of the whole die, increases the convenience of the die, and is safe and convenient to operate.
Description
Technical Field
The invention relates to the technical field of mechanical devices and transportation, in particular to a spar die.
Background
The thermal diaphragm forming process comprises the following steps: the method comprises the steps of paving a prepreg laminated plate for preforming by using an automatic tape paving or manual tape paving process, clamping a prepreg flat plate 5 between superplastic membranes 6 as shown in figure 1, vacuumizing the inside of the membrane, heating, vacuumizing to enable the prepreg layers to slide and deform and stick to a mold, finally sticking the prepreg to the surface of the mold, completing the preforming process, and preparing the preformed body.
Preform: a structure consisting of prepreg plies that have been subjected to a pre-forming process. The preform has a geometry similar to the final part. For complex parts, it may be assembled from different sub-preforms or from a sub-preform and a laminate that has not been preformed. Once the laminate has been thermoformed, it becomes a preform.
As shown in fig. 1, in the existing spar mold design, due to the structural form, a prepreg layer flat plate laying tool needs to be additionally designed, and after the prepreg laminated plate is laid, the material layer needs to be transferred to the spar forming mold, and the following problems occur in the process:
1. the positioning problem is that most of the composite material wing beam structures are designed to be lost, so that the consistency of the lost position and a tool is very important, and the error is large due to the adoption of technological means such as laser projection positioning and the like at the present stage.
2. Self-weight deformation: the prepreg layer flat plate has a large self weight, and can deform due to self weight in the positioning and translation processes, so that the quality of the high-temperature preform is influenced.
Disclosure of Invention
The invention aims to provide a spar die, which can solve the problems of large positioning error, self-weight deformation and the like of a prepreg flat plate in the positioning and moving process in a thermal diaphragm forming process, reduce the uncertain influence caused by the movement of the prepreg flat plate, and ensure the positioning accuracy and stability of the prepreg flat plate in the positioning and moving process.
In order to solve the above problems, the present invention provides a spar mold for a thermal diaphragm forming process of a composite spar, comprising: forming a boss; the frame body is detachably arranged around the forming boss; the filling block is arranged in a space formed by the molding boss and the frame body, and the shape of the filling block is matched with that of the space so as to fill the space; the upper surfaces of the frame body and the filling block and the upper surface of the forming boss are in the same plane.
Further, this spar mould still includes: and the filling strip is arranged in a gap formed between the molding boss and the filling block and is used for filling the gap.
Furthermore, the upper surface of the filling strip and the upper surface of the forming boss are in the same plane.
Furthermore, the filling strips are integrally formed or arranged in a segmented mode, and the total length of the filling strips is matched with the length of the forming boss.
Further, the frame body comprises four baffles which are detachably connected.
Further, the length of the frame body is matched with that of the molding boss.
Furthermore, the upper surface of the filling block and the surface of the filling block, which is in contact with the frame body, are provided with grooves.
Furthermore, the number of the grooves on the upper surface of the filling block is four, and every two grooves are in a group and are respectively positioned at two ends of the filling block; and/or
The number of the grooves on one surface of the filling block, which is in contact with the frame body, is four, and every two grooves are in one group and are respectively positioned at two ends of the filling block.
Furthermore, the filling blocks are integrally formed or arranged in a segmented mode, and the length of the filling blocks is matched with that of the forming lug bosses.
Furthermore, the filling blocks are arranged in two sections, and the two sections of filling blocks are a group and are positioned in the space on one side of the forming boss.
Furthermore, the cross section of the molding boss is trapezoidal, C-shaped or circular arc.
Further, the cross-sectional shape of the filling block is trapezoidal or rectangular.
Further, the shape of the filler strip is matched with that of the gap.
The technical scheme of the invention innovatively provides a spar die for a thermal diaphragm forming process of a composite spar, the technical problems are effectively solved, and the spar die has the following beneficial technical effects:
1. the spar die provided by the invention is used for a thermal diaphragm forming process of a composite spar, and the laying platform is formed by the frame body, the filling block and the forming boss together, so that the problems of large positioning error, self-weight deformation and the like of a prepreg flat plate in the positioning and moving process in the thermal diaphragm forming process are solved, the uncertain influence caused by the movement of the prepreg flat plate is reduced, and the positioning accuracy and the stability of the prepreg flat plate in the positioning and moving process are ensured.
2. The concave handle is formed by arranging the grooves on the surface of the filling block, when the filling block is assembled and used, the filling block can be conveniently placed into the frame by using the concave handle, the filling block can be conveniently taken out from each side by using the concave handle when the filling block is disassembled, the use convenience of the spar mold is improved, and the work efficiency is improved.
3. Because the shaping boss is designed according to the profile of the manufactured spar, two ends of the upper surface in the width direction are generally designed with chamfers or fillets, the sizes of the chamfers or the fillets can be changed due to mould repairing by a process in the process of manufacturing the spar, and the filling strips are arranged through a gap formed between the shaping boss and the filling block and only need to be redesigned according to the assembling requirement. The design of the filling strip can effectively ensure the gap filling of the molding boss and the filling block so as to realize the further accurate and stable positioning and fixing of the prepreg flat plate, thereby further improving the process precision and quality and simultaneously reducing the die repairing cost.
4. The spar die provided by the invention is reasonable in structure, the combined disassembling mode of the whole die is reasonable and easy to use, a smooth paving surface can be quickly and effectively formed for paving, the working quality is improved, the spar die can be quickly and effectively disassembled after working procedures are completed, the spar die is recycled, and the spar die is environment-friendly, safe and convenient.
Drawings
FIG. 1 is a schematic diagram of the structure and flow principle of a prior art thermal diaphragm forming process;
FIG. 2 is an exploded perspective view of the spar mold provided by the present invention;
FIG. 3 is a perspective view of a spar mold assembly provided by the present invention;
FIG. 4 is a schematic perspective view of the structure of the filling block provided by the present invention;
fig. 5 is a schematic structural perspective view of the filler strip provided by the present invention.
Reference numerals:
1. forming a boss, 2, a frame body, 21, 22, 23 and 24, a baffle, 3, a filling block, 31, a groove, 4, a filling strip, 5, a prepreg flat plate, 6 and a superplastic membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example one
FIG. 2 is an exploded perspective view of the spar mold provided by the present invention.
FIG. 3 is an assembled perspective view of the spar mold provided by the present invention.
As shown in fig. 2 and 3, the present embodiment provides a spar mold for a thermal diaphragm forming process of a composite spar, comprising: the boss 1, the frame body 2 and the filling block 3 are molded.
A forming boss 1 for spar thermodiaphragm forming into a desired shape in a thermodiaphragm apparatus.
Optionally, the cross-sectional shape of the molding boss 1 is trapezoidal, C-shaped or circular arc.
The frame body 2 is detachably arranged around the molding boss 1 and used for forming a mold frame with shaping and stress functions.
Alternatively, the cross section of the frame body 2 is rectangular, but the invention is not limited thereto, and the cross section of the frame body 2 may have other shapes.
Optionally, the frame 2 comprises four baffles 21, 22, 23 and 24 which are detachably connected.
Optionally, four baffles 21, 22, 23 and 24 are connected end to end.
Optionally, the four baffles 21, 22, 23 and 24 of the frame body 2 are connected in a matched manner through bolts and holes, so that the assembly and disassembly are completed.
Optionally, the length of the frame body 2 is matched with the length of the molding boss 1.
And the filling block 3 is arranged in a space formed by the molding boss 1 and the frame body 2, and the shape of the filling block is matched with that of the space. The filling block 3 is filled and placed in the frame body 2 and can not move along the length and width directions of the molding boss 1.
Optionally, the cross-sectional shape of the filling block 3 is trapezoidal or rectangular.
Optionally, the cross section of the filling block 3 is a right trapezoid.
The filling blocks 3 are integrally formed or arranged in a segmented mode, and the length of each filling block is matched with that of the forming boss 1.
Optionally, the filling blocks 3 are arranged in two sections, and the two sections of the filling blocks 3 are a group and are located in the space on one side of the molding boss 1. However, the present invention is not limited thereto, and the number of segments of the padding block 3 can be adjusted according to actual needs.
Optionally, the number of segments of the filling block 3 in the space on both sides of the molding boss 1 is the same. However, the present invention is not limited to this, and the number of the segments of the filling block 3 in the space on both sides of the molding boss 1 may also be different, and may be adjusted appropriately according to the actual requirement.
Fig. 4 is a schematic structural perspective view of the filling block provided by the present invention.
Referring to fig. 4, optionally, a slot 31 is disposed on the upper surface of the filling block 3 and a surface thereof contacting the frame 2.
The slot 31 is used for forming a fixable concave handle, so that the filling block 3 can be conveniently held during disassembly and assembly, and the operation convenience of assembly or disassembly of the filling block 3 is improved, so that the use convenience is improved. However, the present invention is not limited thereto, and the slots 31 may be disposed on other surfaces, even each surface has a slot 31, and the disposition of the slots 31 may be adjusted according to actual needs.
Optionally, the number of the slots 31 on the upper surface of the filling block 3 is four, and two slots are respectively located at two ends of the filling block 3.
Optionally, the number of the slots 31 on the surface of the filling block 3 contacting the frame body 2 is four, and each two slots are in a group and are respectively located at two ends of the filling block 3.
Optionally, the four surfaces of the filling block 3 along the length direction are all provided with handle slots 31. The number of handle fluting 31 of every face is four, and every two are a set of both ends that are located filling block 3 respectively, and the installation of being convenient for of handle fluting 31 is seted up to two faces, improves the simple operation nature of the installation of filling block 3 or dismantlement.
The forming boss 1 is made of Invar steel or other steel materials, and the materials of the frame body 2, the filling blocks 3 and the filling strips 4 are not limited according to the profile design of the manufactured spar, but the forming boss is ensured not to deform obviously in daily use.
In this embodiment, the upper surfaces of the frame body 2 and the filling block 3 and the upper surface of the molding boss 1 are on the same plane, and a paving platform is formed by the frame body 2, the filling block 3 and the molding boss 4 together, so that the accuracy of the positioning of the prepreg flat plate is ensured, the influence of uncertainty caused by the movement of the prepreg flat plate is reduced, and the positioning accuracy and stability of the prepreg flat plate in the positioning and moving processes are ensured.
Specifically, the frame body 2 wraps and tightly adheres to the forming boss 1 from four sides of the forming boss 1, a groove-shaped gap is formed between the forming boss 1 and the frame body 2, the gap is used for filling the filling block 3, the prepreg flat plate 5 is paved and adhered on a plane formed by combining the filling block 3 and the forming boss 1, after the prepreg flat plate 5 is paved and adhered, the prepreg flat plate 5 is positioned by the filling block 3, the prepreg flat plate 5 can be smoothly transferred to the diaphragm equipment, at the moment, the prepreg flat plate 5 and the spar mold integrally move, namely, the prepreg flat plate 5 and the spar mold cannot relatively move, accurate positioning of the prepreg flat plate 5 on the forming boss 1 can be ensured, stable firm fixation is formed due to sufficient filling between the filling block 3 and the frame body 2, the filling block 3 cannot move along the length direction and the width direction of the forming boss 1, and the situation that the transportation of the prepreg flat plate 5 and the spar mold and the flat diaphragm equipment after paving and adhering is transferred through the The location of the prepreg flat plate 5 in the process is stable and accurate, the possibility that displacement amplification errors are possibly caused by external movement of the prepreg flat plate 5 is avoided, and the fixing and stabilizing effects of the prepreg flat plate 5 are improved.
The method of using the spar mold of the present embodiment is described below with reference to fig. 2 and 3:
1. assembling a spar die, specifically, placing the frame body 2 around the forming boss 1, and assembling and fixing; then the filling block 3 is placed in a groove-shaped gap formed between the molding boss 1 and the frame body 2 to form relatively stable and firm fixation;
2. paving a lower diaphragm on a platform of the assembled spar die (the lower diaphragm is suitable for a double-diaphragm process, and if the lower diaphragm is not required to be paved in a single-diaphragm process), then paving and attaching a prepreg flat plate 5, and positioning the prepreg flat plate 5 by virtue of a filling block 3 fixed in a position opposite to the molding boss 1 to complete paving and attaching of the prepreg flat plate 5;
3. transferring the spar die and the prepreg flat plate 5 to a diaphragm device, sequentially removing the frame body 2 and the filling blocks 3, and paving a diaphragm;
4. and carrying out spar thermal diaphragm forming on the forming boss 1 and the prepreg flat plate 5 in thermal diaphragm equipment to form a preformed body, bagging the preformed body and the forming boss 1, and transferring the preformed body and the forming boss 1 into an autoclave to finish the spar structure curing forming.
Example two
Fig. 5 is a schematic structural perspective view of the filler strip provided by the present invention.
As shown in fig. 2, 3 and 5, the present embodiment is different from the first embodiment in that, according to practical situations, when a gap is generated between the molding boss 1 and the filling block 3 due to a difference in shape, the spar mold further includes: the bars 4 are filled.
And the filling strip 4 is arranged in the gap formed between the molding boss 1 and the filling block 3 and is used for filling the gap.
Optionally, the upper surface of the filler strip 4 and the upper surface of the molding boss 1 are in the same plane.
Optionally, the upper surfaces and the bottom surfaces of the filling strips 4, the filling blocks 3 and the frame body 2 are all on the same height plane with the molding boss 1.
Optionally, the filler strip 4 is formed integrally or in sections, and the total length thereof matches the length of the forming boss 1.
Because the boss slope of shaping boss 1 and the unfixed nature of required shape, there is the clearance of incomplete filling adaptation inevitable between filling block 3 and the shaping boss 1, at this moment, use and fill the installation with this clearance shape assorted packing strip 4 and go, can solve the problem in clearance, make perfect adaptation between filling block 3 and the shaping boss 1, the effort of mutual stable balance, thereby realize the further accurate stable location fixed action to the prepreg dull and stereotyped, further improve process accuracy and quality.
As shown in fig. 2, since the forming boss 1 is designed according to the profile of the manufactured spar, two ends in the width direction of the upper surface of the forming boss are generally designed with chamfers or fillets, the size of the chamfers or fillets can be changed due to the process of trimming the mold in the process of manufacturing the spar, and at this time, the cross-sectional shape of the filling bars 4 only needs to be redesigned according to the assembly requirement, so that the gap filling between the forming boss 1 and the filling blocks 3 can be effectively ensured, and the mold trimming cost is reduced.
Optionally, the cross-sectional shape of the molding boss 1 is a trapezoid, a C-shape or an arc with a chamfer or a fillet, so that a gap is formed between the molding boss 1 and the filling block 3.
Alternatively, the cross-sectional shape of the filling block 3 is a trapezoid or a rectangle with chamfers or rounded corners. Specifically, the chamfer or fillet of the filling block 3 is located at a position opposite to the chamfer or fillet of the molding boss 1.
Optionally, the shape of the filler strip 4 matches the shape of the gap. The gap here means a gap formed between the molding boss 1 and the filling block 3.
The method of using the spar mould of this embodiment is described below with reference to figures 2, 3 and 5:
1. assembling a spar die, specifically, placing the frame body 2 around the forming boss 1, and assembling and fixing; then the filling block 3 is placed in a groove-shaped gap formed between the forming boss 1 and the frame body 2, and finally the filling strip 4 is placed in a gap formed between the forming boss 1 and the filling block 3 to form relatively stable firm fixation;
2. paving a lower diaphragm on a platform of the assembled spar die (the lower diaphragm is suitable for a double-diaphragm process, and if the lower diaphragm is not required to be paved in a single-diaphragm process), paving a prepreg flat plate 5, and positioning the prepreg flat plate 5 by virtue of a filling block 3 and a filling strip 4 which are fixed relative to the forming boss 1 to complete paving and pasting of the prepreg flat plate 5;
3. transferring the spar die and the prepreg flat plate 5 to a diaphragm device, sequentially removing the frame body 2, the filling blocks 3 and the filling strips 4, and paving a diaphragm;
4. and carrying out spar thermal diaphragm forming on the forming boss 1 and the prepreg flat plate 5 in thermal diaphragm equipment to form a preformed body, bagging the preformed body and the forming boss 1, and transferring the preformed body and the forming boss 1 into an autoclave to finish the spar structure curing forming.
The structure, composition and connection relationship of other parts in this embodiment are the same as those in the first embodiment, and are not described herein again.
The invention aims to protect a spar die, which is used for a thermal diaphragm forming process of a composite spar, wherein a laying platform is formed by a frame body, a filling block and a forming boss, so that the problems of large positioning error, self-weight deformation and the like of a prepreg flat plate in the positioning and moving process in the thermal diaphragm forming process are solved, the uncertain influence caused by the movement of the prepreg flat plate is reduced, and the positioning accuracy and the stability of the prepreg flat plate in the positioning and moving process are ensured. The concave handle is formed by arranging the grooves on the surface of the filling block, when the filling block is assembled and used, the filling block can be conveniently placed into the frame by using the concave handle, the filling block can be conveniently taken out from each side by using the concave handle when the filling block is disassembled, the use convenience of the spar mold is improved, and the work efficiency is improved. Because the shaping boss is designed according to the profile of the manufactured spar, the two ends of the upper surface in the width direction are generally designed with round corners, the size of the round corners can be changed due to the process of trimming the mold in the process of manufacturing the spar, the filling strips are arranged through the gap formed between the shaping boss and the filling blocks, and the filling strips are redesigned only according to the assembly requirement. The design of the filling strip can effectively ensure the gap filling of the molding boss and the filling block so as to realize the further accurate and stable positioning and fixing of the prepreg flat plate, thereby further improving the process precision and quality and simultaneously reducing the die repairing cost. Meanwhile, the spar die disclosed by the invention has the advantages of reasonable structure, reasonable and easy use of a combined disassembling mode of the whole die, capability of quickly and effectively forming a smooth paving surface for paving and pasting work, improvement of working quality, capability of quickly and effectively disassembling after working procedures are finished, formation of recycling, environmental protection, safety, convenience and the like.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (13)
1. A spar mold for use in a thermal diaphragm forming process for a composite spar comprising:
forming a boss (1);
the frame body (2) is detachably arranged around the molding boss (1);
the filling block (3) is arranged in a space formed by the molding boss (1) and the frame body (2), and the shape of the filling block is matched with that of the space so as to fill the space;
the upper surfaces of the frame body (2) and the filling block (3) and the upper surface of the molding boss (1) are in the same plane.
2. The spar mold of claim 1, further comprising:
and the filling strip (4) is arranged in a gap formed between the molding boss (1) and the filling block (3) and is used for filling the gap.
3. The spar mold of claim 2,
the upper surface of the filling strip (4) and the upper surface of the forming boss (1) are in the same plane.
4. The spar mold of claim 2,
the filling strips (4) are integrally formed or arranged in a segmented mode, and the total length of the filling strips is matched with that of the forming boss (1).
5. The spar mold of any of claims 1-4,
the frame body (2) comprises four baffle plates (21, 22, 23 and 24) which are detachably connected.
6. The spar mold of any of claims 1-4,
the length of the frame body (2) is matched with that of the molding boss (1).
7. The spar mold of any of claims 1-4,
and a slot (31) is formed in the upper surface of the filling block (3) and the surface of the filling block, which is in contact with the frame body (2).
8. The spar mold of claim 7,
the number of the grooves (31) on the upper surface of the filling block (3) is four, and every two grooves are in a group and are respectively positioned at two ends of the filling block (3); and/or
The number of the slots (31) on one surface of the filling block (3) in contact with the frame body (2) is four, and every two slots are a group and are respectively positioned at two ends of the filling block (3).
9. The spar mold of any of claims 1-4,
the filling block (3) is integrally formed or arranged in a segmented mode, and the total length of the filling block (3) is matched with that of the forming boss (1).
10. The spar mold of claim 9,
the filling blocks (3) are arranged in two sections, and the two sections of filling blocks (3) are a group and are positioned in the space on one side of the molding boss (1).
11. The spar mold of any of claims 1-4,
the cross section of the molding boss (1) is trapezoidal, C-shaped or arc-shaped.
12. The spar mold of any of claims 1-4,
the cross section of the filling block (3) is trapezoidal or rectangular.
13. The spar mold of any of claims 2-4,
the shape of the filler strip (4) matches the shape of the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187099.9A CN108327320B (en) | 2018-03-07 | 2018-03-07 | Spar mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187099.9A CN108327320B (en) | 2018-03-07 | 2018-03-07 | Spar mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108327320A CN108327320A (en) | 2018-07-27 |
| CN108327320B true CN108327320B (en) | 2020-05-01 |
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| CN201810187099.9A Active CN108327320B (en) | 2018-03-07 | 2018-03-07 | Spar mould |
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| CN113561455A (en) * | 2020-04-29 | 2021-10-29 | 中国商用飞机有限责任公司 | Method for positioning plane material sheet in hat-shaped stringer thermal diaphragm process |
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| JP4967405B2 (en) * | 2006-03-27 | 2012-07-04 | 東レ株式会社 | Manufacturing method of fiber reinforced plastic |
| GB0719267D0 (en) * | 2007-10-04 | 2007-11-14 | Airbus Uk Ltd | Method of monitoring the performance of a pressure intensifier |
| GB0719269D0 (en) * | 2007-10-04 | 2007-11-14 | Airbus Uk Ltd | Method of moulding a charge |
| US9573301B2 (en) * | 2013-03-19 | 2017-02-21 | The Boeing Company | Methodfor reducing ply wrinkling of composite laminates during forming |
| CN104441677A (en) * | 2014-09-16 | 2015-03-25 | 沈阳飞机工业（集团）有限公司 | R angle folding and molding method of large-thickness composite material workpiece |
| CN105479772B (en) * | 2016-01-20 | 2017-09-22 | 南京工业大学 | A kind of accurate three-dimensional enhanced composite dot-matrix sandwich and preparation method thereof |
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2018
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