CN218948194U - Composite material air inlet channel product forming tool based on memory core die - Google Patents
Composite material air inlet channel product forming tool based on memory core die Download PDFInfo
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- CN218948194U CN218948194U CN202223354611.5U CN202223354611U CN218948194U CN 218948194 U CN218948194 U CN 218948194U CN 202223354611 U CN202223354611 U CN 202223354611U CN 218948194 U CN218948194 U CN 218948194U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The utility model provides a composite material air inlet channel product forming tool based on a memory core mould, which comprises the following steps: a memory core mold, a core mold forming device and a product forming device; the memory core mould is made of a memory material and is softened and deformed after being heated; the core mold forming device is used for forming the memory core mold and comprises a first upper mold, a supporting mold and a first lower mold, wherein a core mold cavity is formed by surrounding the first upper mold, the first lower mold and the supporting mold together; the product forming device comprises a second upper die and a second lower die, and the second upper die, the second lower die and the memory core die jointly surround to form a product cavity. Compared with the prior art, the composite material air inlet channel product forming tool based on the memory core mold has the advantages of simple structure, convenience in operation and lower manufacturing cost, can realize the repeated use of the memory core mold, and is convenient for the demolding operation of composite material products with inner cavity molded surfaces with complex curvature.
Description
Technical Field
The utility model relates to the technical field of composite product forming, in particular to a composite air inlet channel product forming tool based on a memory core die.
Background
With the continuous development and improvement of composite material manufacturing technology, more and more aircraft parts with complex profiles are manufactured by adopting composite materials, for example, products with air inlets (hereinafter referred to as composite material air inlet products) prepared by adopting composite materials, and the air inlets of the composite material air inlet products have complex and various structures, and are not allowed to be spliced and molded, so that the requirement of a die is strict, and the shape of the metal core die is matched with that of the air inlet by arranging the metal core die in the die at present, but the core die is inconvenient to demould, and can only be used for air inlets with specific shapes, so that the limitation is high.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings in the prior art and provides a composite material air inlet channel product forming tool based on a memory core die.
One embodiment of the utility model provides a composite air inlet channel product forming tool based on a memory core die, which comprises: a memory core mold, a core mold forming device and a product forming device.
The memory core mould is made of a memory material and is softened and deformed after being heated;
the core mold forming device is used for forming the memory core mold and comprises a first upper mold, a supporting mold and a first lower mold, wherein the supporting mold is arranged between the first upper mold and the first lower mold, when the first upper mold and the first lower mold are assembled, a core mold cavity is formed by surrounding the first upper mold, the first lower mold and the supporting mold together, and the shape of the memory core mold is matched with that of the core mold cavity;
the product forming device comprises a second upper die and a second lower die, the memory core die is arranged between the second upper die and the second lower die, and the second upper die, the second lower die and the memory core die jointly surround to form a product cavity.
Compared with the prior art, the composite material air inlet channel product forming tool based on the memory core mold has the advantages of simple structure, convenience in operation and lower manufacturing cost, can realize the repeated use of the memory core mold, and is convenient for the demolding operation of composite material products with inner cavity molded surfaces with complex curvature.
In some optional embodiments, the first upper die and/or the first lower die are provided with a plurality of first grooves, the first grooves on the first upper die are uniformly arranged on one side of the first upper die away from the core die cavity, and the first grooves on the first lower die are uniformly arranged on one side of the first lower die away from the core die cavity.
In some alternative embodiments, a first equalizing plate is disposed on a side of the first upper die remote from the core die cavity.
In some alternative embodiments, a plurality of first positioning pins are disposed on the first upper die, and the first positioning pins are connected with the first lower die after passing through the first upper die.
In some alternative embodiments, the core mold cavity has a bending section, the first upper mold and the first lower mold are both detachably provided with auxiliary stripping modules, the first upper mold, the first lower mold, the supporting mold and the two auxiliary stripping modules are jointly surrounded to form the core mold cavity, and the two auxiliary stripping modules are arranged around the bending section.
In some optional embodiments, the second upper die and/or the second lower die are/is provided with a plurality of second grooves, the second grooves on the second upper die are uniformly arranged on one side of the second upper die away from the product cavity, and the second grooves on the second lower die are uniformly arranged on one side of the second lower die away from the product cavity.
In some alternative embodiments, a second equalizing plate is disposed on a side of the second upper die remote from the product cavity.
In some optional embodiments, a plurality of second positioning pins are disposed on the second upper die, and the second positioning pins penetrate through the second upper die and then are connected with the second lower die.
In some optional embodiments, the product forming apparatus further includes two end-plugging plates, the end-plugging plates are connected with the second upper mold and the second lower mold, the two end-plugging plates respectively surround two ends of the memory core mold, the second upper mold, the second lower mold, the memory core mold and the two end-plugging plates jointly surround to form the product cavity, and the two end-plugging plates are respectively located at two ends of the product cavity.
In some alternative embodiments, a release aid is applied to the outer side of the memory core after the memory core is formed by the core forming device.
In order that the utility model may be more clearly understood, specific embodiments thereof will be described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a core molding apparatus according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a product forming apparatus according to an embodiment of the present utility model;
fig. 3 is a sectional view of a core molding apparatus according to an embodiment of the present utility model;
fig. 4 is an exploded view of a core molding apparatus according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a product forming apparatus according to one embodiment of the utility model;
FIG. 6 is an exploded view of a product forming apparatus according to one embodiment of the present utility model;
fig. 7 is an enlarged view at a shown in fig. 5.
Reference numerals illustrate:
10. a memory core die; 21. a first upper die; 22. a support die; 23. a first lower die; 24. a core mold cavity; 25. a first groove; 26. a first equalizing plate; 27. a first positioning pin; 28. an auxiliary stripping module; 29. an eye bolt; 31. a second upper die; 32. a second lower die; 33. a product cavity; 34. a second groove; 35. a second equalizing plate; 36. a second positioning pin; 37. end-plugging plate blocks; 40. and (5) a composite material air inlet channel product.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a core mold forming device according to an embodiment of the present utility model, and fig. 2 is a schematic structural diagram of a product forming device according to an embodiment of the present utility model, where a composite air inlet channel product forming tool based on a memory core mold includes: a memory core 10, a core molding device and a product molding device.
The memory core mold 10 is made of a memory material, for example, a polymer material can be used, the memory core mold 10 has a certain rigidity and hardness at normal temperature, the requirement of the memory core mold is met, and the memory core mold 10 is softened and deformed to recover the original state after heating. In addition, the memory core mould 10 is hollow, so that the core mould material is saved, and the cost is reduced.
Referring to fig. 3 and 4, fig. 3 is a sectional view of a core mold forming apparatus according to an embodiment of the present utility model, and fig. 4 is an exploded view of a core mold forming apparatus according to an embodiment of the present utility model, which is used for forming a memory core mold 10, including a first upper mold 21, a support mold 22, and a first lower mold 23, the support mold 22 being disposed between the first upper mold 21 and the first lower mold 23, and a core mold cavity 24 being formed around the first upper mold 21, the first lower mold 23, and the support mold 22 when the first upper mold 21 and the first lower mold 23 are closed, the shape of the memory core mold 10 being matched with the core mold cavity 24.
Referring to fig. 5 and 6, fig. 5 is a sectional view of a product forming apparatus according to an embodiment of the present utility model, and fig. 6 is an exploded view of the product forming apparatus according to an embodiment of the present utility model, the product forming apparatus including a second upper mold 31 and a second lower mold 32, the memory core mold 10 being disposed between the second upper mold 31 and the second lower mold 32, and the second upper mold 31, the second lower mold 32 and the memory core mold 10 being formed around a product cavity 33.
In manufacturing the composite air intake duct product 40, a sheet for manufacturing the memory core mold 10 is firstly attached to the support mold 22, the thickness of the attached sheet is preferably controlled to be 2-4 mm, then the support mold 22 is placed on the first lower mold 23, then the first upper mold 21 and the first mold are clamped, the memory core mold 10 with the outer side conforming to the inner cavity profile of the air intake duct product is formed after heating, compacting and resolidifying, then the first upper mold 21 and the first lower mold 23 are separated, and the support mold 22 is taken out from the memory core mold 10. Then, the prepreg used for forming the composite air inlet channel product 40 is paved on the surface of the memory core mould 10, then the memory core mould 10 is placed on the second lower mould 32, the second upper mould 31 and the second lower mould 32 are clamped, after the prepreg is compacted and solidified, the product forming device is placed into a heating furnace to heat the prepreg to be further solidified to form the composite air inlet channel product 40, and the memory core mould 10 is softened and deformed during heating, so that the memory core mould 10 can be conveniently taken out from the composite air inlet channel product 40, the demoulding is convenient, the inner wall of an air inlet channel of the composite air inlet channel product 40 is not easy to damage, and the yield is improved. In the subsequent processing, the memory core mold 10, which is softened and deformed, is attached again to the outer side of the support mold 22, and the memory core mold is formed again by the core mold forming device, so that the memory core mold can be repeatedly formed and used. It should be noted that, when the product forming apparatus heats the prepreg in the heating furnace, since the prepreg has a shape, even if the memory core 10 is softened during heating, the curing of the composite air inlet product 40 is not affected, and the heating temperature of the heating furnace may be designed according to the temperature required by the actual composite air inlet product 40, for example, in this embodiment, the heating temperature of the heating furnace is 60 ℃.
In addition, if the support die 22 cannot be removed due to the shape of the memory core die 10, the support die 22 may be divided into a plurality of support blocks, and the plurality of support blocks may be detachably connected to each other, for example, the plurality of support blocks may be connected to each other by magnetic attraction, so that one support block may be sequentially removed when the support die 22 is removed.
In order to facilitate the separation of the memory core 10 from the composite air intake duct product 40, in some alternative embodiments, after the memory core 10 is molded by the core molding device, a demolding auxiliary material is attached to the outer side surface of the memory core 10, where the demolding auxiliary material may be a smooth demolding auxiliary material such as polytetrafluoroethylene tape, and the outer side of the demolding auxiliary material is smoothly released and adhered, so that the memory core 10 is easily separated from the composite air intake duct product 40 after being softened and deformed. And the inner surface of the air inlet of the composite air inlet product 40 is smoother, so that the appearance surface of the composite air inlet product 40 has good quality, and the production requirement is met.
In some alternative embodiments, the first upper die 21 and/or the first lower die 23 are provided with a plurality of first grooves 25, the first grooves 25 on the first upper die 21 are uniformly arranged on the side of the first upper die 21 away from the core die cavity 24, and the first grooves 25 on the first lower die 23 are uniformly arranged on the side of the first lower die 23 away from the core die cavity 24. The first groove 25 can provide a weight reduction effect on the first lower die 23 and/or the first upper die 21, and can increase the heat exchange area on the first lower die 23 and/or the first upper die 21, improving the heat transfer efficiency. In the present embodiment, the first upper die 21 and the first lower die 23 are each provided with a first groove 25.
In order to make the pressure to which the memory core mold 10 is subjected more uniform when the first upper mold 21 and the first lower mold 23 are closed and the memory core mold 10 is compacted, in some alternative embodiments, a first equalizing plate 26 is provided on a side of the first upper mold 21 away from the core mold cavity 24, and a force applying device applies pressure to the first upper mold 21 through the first equalizing plate 26 so as to press the first upper mold 21 against the first lower mold 23, and the first equalizing plate 26 makes the pressure to which the first upper mold 21 is subjected more uniform, and thus makes the pressure to which the memory core mold 10 is subjected more uniform. Especially, when the first upper die 21 is provided with the first groove 25, the first equalizing plate 26 can avoid the condition that the first upper die 21 is stressed unevenly due to the influence of the groove structure.
In order to improve the stability of the relative positions of the first upper die 21 and the first lower die 23, in some alternative embodiments, a plurality of first positioning pins 27 are disposed on the first upper die 21, the first positioning pins 27 penetrate through the first upper die 21 and then are connected with the first lower die 23, and the relative positions of the first upper die 21 and the first lower die 23 can be not easily deviated by the first positioning pins 27, so that the forming of the memory core die 10 is prevented from being influenced. In the present embodiment, the first lower die 23 is provided with a positioning hole into which the first positioning pin 27 extends. The first lower die 23 is further provided with a first guide pin which extends into a guide hole in the first upper die 21, and which can guide the movement of the first upper die 21 when the first upper die 21 and the first lower die 23 are clamped.
In order to facilitate the demolding of the memory core 10, in some alternative embodiments, the core cavity 24 has a bending section, the first upper mold 21 and the first lower mold 23 are both detachably provided with auxiliary demolding modules 28, the first upper mold 21, the first lower mold 23, the supporting mold 22 and the two auxiliary demolding modules 28 are jointly surrounded to form the core cavity 24, the two auxiliary demolding modules 28 are arranged around the bending section, and when the memory core 10 is demolded, the two auxiliary demolding modules 28 are detached from the first upper mold 21 and the first lower mold 23 first, and then the first upper mold 21 and the first lower mold 23 are separated, so that the memory core 10 is more easily separated from the first upper mold 21 and the first lower mold 23, and difficult demolding of the memory core 10 due to the bending form of the memory core 10 is avoided. In the present embodiment, the auxiliary stripping module 28 is detachably connected to the first upper die 21 and the first lower die 23 by positioning pins
In some alternative embodiments, the second upper mold 31 and/or the second lower mold 32 are provided with a plurality of second grooves 34, and the second grooves 34 on the second upper mold 31 are uniformly arranged on the side of the second upper mold 31 away from the product cavity 33, and the second grooves 34 on the second lower mold 32 are uniformly arranged on the side of the second lower mold 32 away from the product cavity 33. The second grooves 34 can provide a weight reduction effect on the second lower die 32 and/or the second upper die 31, and can increase the heat exchange area on the second lower die 32 and/or the second upper die 31, improving the heat transfer efficiency. In the present embodiment, the second grooves 34 are provided on both the second upper die 31 and the second lower die 32.
In order to make the pressure to which the prepreg is subjected more uniform when the second upper mold 31 and the second lower mold 32 are closed and compacted, in some alternative embodiments, a second equalizing plate 35 is disposed on a side of the second upper mold 31 away from the product cavity 33, and the second equalizing plate 35 is used by a force application device to apply pressure to the second upper mold 31, so that the second upper mold 31 is pressed against the second lower mold 32, and the second equalizing plate 35 makes the pressure to which the second upper mold 31 is subjected more uniform, so that the pressure to which the prepreg is subjected is more uniform, and further, the molding quality of the composite air inlet duct product 40 is more excellent. Especially, when the second upper die 31 is provided with the second groove 34, the second equalizing plate 35 can avoid the condition that the second upper die 31 is stressed unevenly due to the influence of the groove structure.
In order to improve the stability of the relative positions of the second upper die 31 and the second lower die 32, in some alternative embodiments, a plurality of second positioning pins 36 are disposed on the second upper die 31, the second positioning pins 36 penetrate through the second upper die 31 and then are connected with the second lower die 32, and the second positioning pins 36 can enable the relative positions of the second upper die 31 and the second lower die 32 to be difficult to deviate, so that the molding of the composite air inlet channel product 40 is prevented from being influenced. In the present embodiment, the second lower die 32 is provided with a positioning hole into which the second positioning pin 36 extends. In addition, a second guide pin is further provided on the second lower die 32, and the second guide pin extends into a guide hole on the second upper die 31, and can play a role in guiding the movement of the second upper die 31 when the second upper die 31 and the second lower die 32 are clamped.
Referring to fig. 7, which is an enlarged view of a portion a shown in fig. 5, the prepreg is attached to the middle of the memory core mold 10, both ends of the memory core mold 10 have a certain length margin without the prepreg, and the second upper mold 31 and the second lower mold 32 are abutted against the memory core mold 10 to block both ends of the product cavity 33, but the composite air intake duct product 40 is in a curved shape, which causes the second upper mold 31 and the second lower mold 32 to be easily interfered with and pressed against the composite air intake duct product 40 when being released from each other, and thus makes it difficult to release the composite air intake duct product 40, and in some alternative embodiments, the product forming apparatus further includes two end blocking blocks 37, wherein the end blocking blocks 37 are connected to the second upper mold 31 and the second lower mold 32, and in this embodiment, the end blocking blocks 37 are detachably connected to the second upper mold 31 and the second lower mold 32 by positioning pins. The two end plugging plate blocks 37 are respectively arranged around two ends of the memory core mold 10, the second upper mold 31, the second lower mold 32, the memory core mold 10 and the two end plugging plate blocks 37 are jointly surrounded to form the product cavity 33, the two end plugging plate blocks 37 are respectively positioned at two ends of the product cavity 33, the end plugging plate blocks 37 are abutted on the memory core mold 10, the end plugging plate blocks 37 are used for blocking two ends of the composite air inlet duct product 40, when the composite air inlet duct product 40 is demolded, the end plugging plate blocks 37 are firstly removed from the second upper mold 31 and the second lower mold 32, and then the second upper mold 31 and the second lower mold 32 are separated, so that the structures of the second upper mold 31 and the second lower mold 32 are easier to separate, and the composite air inlet duct product 40 is simpler to demold.
In addition, in order to facilitate movement of the core mold forming device and the product forming device, eye bolts 29 are provided on both sides of the first upper mold 21, both sides of the first lower mold 23, both sides of the second upper mold 31, and both sides of the second lower mold 32, and the eye bolts 29 can be engaged with other handling devices, transportation devices.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Composite material air inlet channel product shaping frock based on memory mandrel, its characterized in that includes: a memory core mold, a core mold forming device and a product forming device;
the memory core mould is made of a memory material and is softened and deformed after being heated;
the core mold forming device is used for forming the memory core mold and comprises a first upper mold, a supporting mold and a first lower mold, wherein the supporting mold is arranged between the first upper mold and the first lower mold, when the first upper mold and the first lower mold are assembled, a core mold cavity is formed by surrounding the first upper mold, the first lower mold and the supporting mold together, and the shape of the memory core mold is matched with that of the core mold cavity;
the product forming device comprises a second upper die and a second lower die, the memory core die is arranged between the second upper die and the second lower die, and the second upper die, the second lower die and the memory core die jointly surround to form a product cavity.
2. The composite air inlet channel product forming tool based on the memory core die as set forth in claim 1, wherein: the first upper die and/or the first lower die are/is provided with a plurality of first grooves, the first grooves on the first upper die are uniformly arranged on one side of the first upper die away from the core die cavity, and the first grooves on the first lower die are uniformly arranged on one side of the first lower die away from the core die cavity.
3. The composite air inlet channel product forming tool based on the memory core die as set forth in claim 1, wherein: and a first equalizing plate is arranged on one side of the first upper die, which is far away from the core die cavity.
4. The composite air inlet channel product forming tool based on the memory core die as set forth in claim 1, wherein: the first upper die is provided with a plurality of first locating pins, and the first locating pins penetrate through the first upper die and then are connected with the first lower die.
5. The composite air inlet channel product forming tool based on the memory core die as set forth in claim 1, wherein: the core die cavity is provided with a bending section, the first upper die and the first lower die are detachably provided with auxiliary stripping modules, the first upper die, the first lower die, the supporting die and the two auxiliary stripping modules are jointly arranged around the bending section to form the core die cavity.
6. A composite air inlet duct product forming tool based on a memory core according to any one of claims 1 to 5, wherein: the second upper die and/or the second lower die are/is provided with a plurality of second grooves, the second grooves on the second upper die are uniformly arranged on one side of the second upper die far away from the product cavity, and the second grooves on the second lower die are uniformly arranged on one side of the second lower die far away from the product cavity.
7. A composite air inlet duct product forming tool based on a memory core according to any one of claims 1 to 5, wherein: and a second equalizing plate is arranged on one side of the second upper die, which is far away from the product cavity.
8. A composite air inlet duct product forming tool based on a memory core according to any one of claims 1 to 5, wherein: the second upper die is provided with a plurality of second locating pins, and the second locating pins penetrate through the second upper die and then are connected with the second lower die.
9. A composite air inlet duct product forming tool based on a memory core according to any one of claims 1 to 5, wherein: the product forming device further comprises two end plugging plate blocks, wherein the end plugging plate blocks are connected with the second upper die and the second lower die, the two end plugging plate blocks respectively surround two ends of the memory core die, the second upper die, the second lower die, the memory core die and the two end plugging plate blocks jointly surround to form a product cavity, and the two end plugging plate blocks are respectively positioned at two ends of the product cavity.
10. A composite air inlet duct product forming tool based on a memory core according to any one of claims 1 to 5, wherein: after the memory core mould is formed by the core mould forming device, a demoulding auxiliary material is attached to the outer side surface of the memory core mould.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223354611.5U CN218948194U (en) | 2022-12-14 | 2022-12-14 | Composite material air inlet channel product forming tool based on memory core die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223354611.5U CN218948194U (en) | 2022-12-14 | 2022-12-14 | Composite material air inlet channel product forming tool based on memory core die |
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| CN218948194U true CN218948194U (en) | 2023-05-02 |
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| CN202223354611.5U Active CN218948194U (en) | 2022-12-14 | 2022-12-14 | Composite material air inlet channel product forming tool based on memory core die |
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| CN (1) | CN218948194U (en) |
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