Carbon fiber composite material missile wing forming mold

Abstract

The carbon fiber composite material missile wing forming mold comprises an upper mold body, a lower mold body, a front baffle, a rear baffle and a lateral pressurizing block, the upper mold body and the lower mold body are fixedly connected through the front baffle and the rear baffle to form a space with an opening in one end, and the lateral pressurizing block is arranged in the opening end of the space. And meanwhile, the upper die, the lower die, the front baffle and the rear baffle are tightly connected. According to the carbon fiber composite material missile wing forming mold provided by the embodiment of the invention, the mold pressing blocks are combined to serve as the mold of the missile wing, the mold formed through mold pressing combination can be designed into any shape to be spliced, and a demolded product is easy to take out. In addition, the requirements of supporting, positioning and air tightness guaranteeing are provided for the product by means of the lateral pressurizing block. And finally, the modular processing cycle is short, the designability is high, the research and development cycle can be greatly shortened, the operation time is shortened, manual operation is reduced, the research and development cost of the missile wing is reduced, and the competitive advantages of products are improved.

Description

Technical Field

[0001] The present application relates to the technical field of wing forming dies, and in particular to a wing forming dies made of carbon fiber composite material. Background Art

[0002] The wing is installed at the tail of the missile, which is used to stabilize the flight state of the aerial bomb when it is falling, ensuring that the aerial bomb hits the target in the correct posture, and usually does not provide lift or control force. This shows the importance of the wing parts to the missile itself.

[0003] In order to reduce the weight of the missile wing, a large amount of carbon fiber composite materials are used in the missile wing because compared with other materials, carbon fiber composite materials have higher specific strength and specific modulus, and have advantages such as strong designability.

[0004] At present, there are many molding technologies for carbon fiber composite materials. Compression molding has high production efficiency, is suitable for mass production, has precise product size, smooth surface and low price. However, the design and manufacture of existing carbon fiber composite compression molding molds are relatively complex, and the product is easily restricted by the mold cavity during the mold opening process, making it difficult to demold the product. Therefore, there is an urgent need for a molding mold with simple demolding to produce a wing made of carbon fiber composite materials. Utility Model Content

[0005] The embodiment of the present application provides a carbon fiber composite material elastic wing forming mold, and the carbon fiber composite material elastic wing forming mold is easy to demould.

[0006] The embodiment of the present application provides a carbon fiber composite material wing forming mold, including an upper mold, a lower mold, a front baffle, a rear baffle and a lateral pressure block;

[0007] The upper mold and the lower mold are fixedly connected through the front baffle and the rear baffle to form a space with one end open;

[0008] The lateral pressure block is arranged in the open end of the space and is tightly connected with the upper die, the lower die, the front baffle and the rear baffle at the same time.

[0009] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the surface of the lower mold that cooperates with the upper mold has two corners at the first end thereof respectively provided with first pits, and the corresponding two corners of the upper mold are respectively provided with first cone pins.

[0010] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the surface of the lower mold that cooperates with the upper mold has two corners at the second end thereof provided with second cone pins, and the corresponding two corners of the upper mold have second pits.

[0011] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the lower mold is provided with a lower mold first connecting hole, the first surface of the front baffle connected to the lower mold is provided with a front baffle first connecting hole, and the lower mold and the front baffle are fixedly connected by a first connecting member, the lower mold first connecting hole and the front baffle first connecting hole;

[0012] The lower mold is provided with a second connecting hole of the lower mold, the first surface of the rear baffle connected to the lower mold is provided with a first connecting hole of the rear baffle, and the lower mold and the rear baffle are fixedly connected by a second connecting piece, the second connecting hole of the lower mold and the first connecting hole of the rear baffle.

[0013] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the upper mold is provided with an upper mold first connecting hole, the second surface of the front baffle connected to the upper mold is provided with a front baffle second connecting hole, and the upper mold and the front baffle are fixedly connected by a third connecting member, the upper mold first connecting hole and the front baffle second connecting hole;

[0014] The upper mold is provided with an upper mold second connecting hole, the second surface of the rear baffle connected to the upper mold is provided with a rear baffle second connecting hole, and the upper mold and the rear baffle are fixedly connected by a fourth connecting piece, the upper mold second connecting hole and the rear baffle second connecting hole.

[0015] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the roughness requirement of the mold forming surface, assembly surface and pocket surface is Ra1.6, and the roughness requirement of the remaining surfaces is not greater than Ra6.3.

[0016] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the assembly clearance of the mold is less than or equal to 0.1 mm.

[0017] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the profile tolerances of the mating surfaces of the upper mold, the lower mold and the lateral pressure block are all -0.2mm to 0mm, and the profile tolerances of the remaining mating surfaces are ±0.1mm.

[0018] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the non-working surface of the mold is coated with anti-rust paint and high temperature resistant surface paint.

[0019] In the carbon fiber composite material wing forming mold described in the embodiment of the present application, the materials of the upper mold, the lower mold, the front baffle, the rear baffle and the lateral pressure block are all metal.

[0020] The carbon fiber composite material wing forming mold provided in the embodiment of the present application includes an upper mold, a lower mold, a front baffle, a rear baffle and a lateral pressure block. The upper mold and the lower mold are fixedly connected by the front baffle and the rear baffle to form a space with one end open. The lateral pressure block is arranged in the open end of the space and is tightly connected to the upper mold, the lower mold, the front baffle and the rear baffle at the same time. That is, the carbon fiber composite material wing forming mold of the embodiment of the present application adopts the method of mold pressing block combination as the mold of the wing, wherein the mold formed by the mold pressing combination can be designed into any shape for assembly, and the demoulding product is easy to take out. In addition, the lateral pressure block is relied on to provide support, positioning and air tightness requirements for the product. Therefore, the carbon fiber composite material wing forming mold provided in the embodiment of the present application can not only ensure the air tightness of the mold, but also ensure that the mold has good demoulding properties. Finally, the sub-module processing cycle is short and the designability is strong, which can greatly shorten the research and development cycle, shorten the operation time, reduce manual operation, reduce the research and development cost of the wing, and improve the competitive advantage of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0022] Figure 1 An exploded view of the carbon fiber composite material wing forming mold provided in an embodiment of the present application.

[0023] Description of Figure Numbers:

[0024] 1-Upper mold 2-Lower mold 3-Front baffle

[0025] 4-rear baffle 5-lateral pressure block 6-first pit

[0026] 7-first cone pin 8-second cone pin

[0027] 1000-Carbon fiber composite material wing forming mold DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length",

[0030] The directions or positional relationships indicated by "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0034] The present application provides a carbon fiber composite material wing forming die. Figure 1 The carbon fiber composite material wing forming mold 1000 includes an upper mold 1, a lower mold 2, a front baffle 3, a rear baffle 4 and a lateral pressure block 5.

[0035] Among them, the upper die 1, the lower die 2, the front baffle 3, the rear baffle 4 and the lateral pressure block 5 are all finely processed to ensure the flatness and the rigidity thereof.

[0036] The upper mold 1 and the lower mold 2 are fixedly connected by a front baffle 3 and a rear baffle 4 to form a space with one end open.

[0037] The lateral pressure block 5 is arranged in the open end of the space and is tightly connected to the upper mold 1, the lower mold 2, the front baffle plate 3 and the rear baffle plate 4 at the same time.

[0038] The lateral pressure block 5 is in a free state without being limited by any limit block or positioning pin.

[0039] Among them, when the upper mold 1, the lower mold 2, the front baffle 3, the rear baffle 4 and the lateral pressure block 5 are assembled into a complete carbon fiber composite material wing forming mold 1000, the front baffle 3, the rear baffle 4 and the lower mold 2 are connected first, and then the lateral pressure block 5 is installed, and finally the upper mold 1 is connected to the front baffle 3 and the rear baffle 4.

[0040] The carbon fiber composite material wing forming mold 1000 of the embodiment of the present application adopts a combination of molded blocks as the mold of the wing, wherein the mold formed by the molded combination can be designed into any shape for assembly, and the demolding product is easy to take out. In addition, the lateral pressure block 5 is relied upon to provide support, positioning and air tightness requirements for the product. Therefore, the carbon fiber composite material wing forming mold 1000 of the embodiment of the present application can not only ensure the air tightness of the mold, but also ensure that the mold has good demolding properties. Finally, the modular processing cycle is short and the designability is strong, which can greatly shorten the research and development cycle, shorten the operation time, reduce manual operation, reduce the research and development cost of the wing, and improve the competitive advantage of the product.

[0041] In some embodiments, the surface of the lower mold 2 that matches the upper mold 1 is provided with first pits 6 at two corners of the first end, and the corresponding two corners of the upper mold 2 are provided with first cone pins 7.

[0042] Among them, by providing the first pit 6 and the first cone pin 7, the upper mold 1 and the lower mold 2 can be better matched.

[0043] In some embodiments, the surface of the lower mold 2 that matches the upper mold 1 is provided with second cone pins 8 at two corners of the second end, and the corresponding two corners of the upper mold are provided with second pits.

[0044] Among them, adding the second pit and the second cone pin 8 on the basis of the first pit 6 and the first cone pin 7 can better enable the upper mold 1 and the lower mold 2 to cooperate with each other and ensure that they are not deformed.

[0045] In some embodiments, a lower mold first connecting hole is provided on the lower mold 2, and a front baffle first connecting hole is provided on the first surface of the front baffle 3 connected to the lower mold 2. The lower mold 2 and the front baffle 3 are fixedly connected by the first connecting member, the lower mold first connecting hole and the front baffle first connecting hole.

[0046] The first connecting member may be a pin, a bolt or other components.

[0047] A second connecting hole is provided on the lower mold 2, and a first connecting hole is provided on the first surface of the rear baffle 4 connected to the lower mold 2. The lower mold 2 and the rear baffle 4 are fixedly connected by the second connecting piece, the second connecting hole of the lower mold and the first connecting hole of the rear baffle.

[0048] The second connecting member may be a pin, a bolt or other components.

[0049] In some embodiments, a first connecting hole of the upper mold is provided on the upper mold 1, and a second connecting hole of the front baffle is provided on the second surface of the front baffle 3 connected to the upper mold 1, and the upper mold 1 and the front baffle 3 are fixedly connected by a third connecting member, the first connecting hole of the upper mold and the second connecting hole of the front baffle.

[0050] The third connecting member may be a pin, a bolt or other components.

[0051] The upper mold 1 is provided with an upper mold second connecting hole, and the second surface of the rear baffle 4 connected to the upper mold 1 is provided with a rear baffle second connecting hole. The upper mold 1 and the rear baffle 4 are fixedly connected by a fourth connecting piece, the upper mold second connecting hole and the rear baffle second connecting hole.

[0052] The fourth connecting member may be a pin, a bolt or other components.

[0053] Among them, the hole positions in the upper mold 1 (the first connecting hole of the upper mold and the second connecting hole of the upper mold) provide positioning references to ensure that the relative positions of the upper mold 1, the front baffle 3, the rear baffle 4 and the lower mold 2 are accurate when they are matched.

[0054] In some embodiments, the roughness requirement of the mold forming surface, the assembly surface and the pocket surface is Ra1.6, and the roughness requirement of the remaining surfaces is not greater than Ra6.3.

[0055] Among them, the bagged surface is the surface pressed with a vacuum bag.

[0056] In some embodiments, the assembly clearance of the mold is less than or equal to 0.1 mm.

[0057] Among them, the assembly clearance and step difference of the combined molding tooling. The combined molding tooling requires the overall processing of the molding surface after assembly to ensure that the molding surface has no step difference and the assembly clearance is ≤0.1mm.

[0058] In some embodiments, the profile tolerances of the mating surfaces of the upper die 1 , the lower die 2 , and the lateral pressure block 5 are all -0.2 mm to 0 mm, and the profile tolerances of the remaining mating surfaces are ±0.1 mm.

[0059] That is, the upper die 1 mating surface tolerance of this embodiment is processed according to -0.2mm~0mm, the lateral pressure block 5 mating surface tolerance is processed according to 0mm~0.2mm, the lower die 2 mating surface tolerance is processed according to -0.2mm~0mm, and the remaining annotation mold mating surfaces are processed according to ±0.1mm.

[0060] In some embodiments, the non-working surface of the mold is coated with anti-rust paint and high temperature resistant surface paint.

[0061] Among them, the surface of the mold (carbon fiber composite material wing forming mold 1000) is required to be smooth and flat, and no scratches, dents, marks, pits, protrusions and other defects are allowed. The non-working area of ​​the mold should be beautiful and should be coated with anti-rust paint and high-temperature resistant surface paint. The high-temperature paint should meet the curing temperature requirements (operating temperature 150°C). The welding surface and welds must be polished and sandblasted before painting; all sharp edges should be blunted and there should be no scratching. All welding points should be polished and there should be no residual welding slag, burrs, etc. The contour edges of the molding tooling need to be rounded.

[0062] Among them, the mold needs to be heat treated, annealing treatment is required after welding is completed, and aging treatment is required after rough processing is completed to eliminate welding and processing stress.

[0063] Among them, it is required to spray high-temperature resistant silver powder paint on the non-molding surface, non-assembly surface and non-pocket surface of the molding tooling, with a long-term temperature resistance of 150°C, and to apply anti-rust treatment such as rust inhibitor on the molding tooling surface to prevent damage to the molding tooling during transportation.

[0064] Among them, after the product (elastic wing) is formed, the foam is destroyed and the product can be demoulded smoothly.

[0065] In some embodiments, the materials of the upper mold 1 , the lower mold 2 , the front baffle plate 3 , the rear baffle plate 4 and the lateral pressure block 5 are all metal.

[0066] That is, the present embodiment adopts metal mold blocks to form the carbon fiber composite material wing forming mold 1000.

[0067] The carbon fiber composite material wing forming mold 1000 of the present application has the following advantages: a. The product is not easy to deform during compression molding, has good dimensional stability, and can press large flat products; b. Saves raw materials and does not cause excessive losses (usually 2% to 5% of the product quality); c. The wear of the mold cavity is very small, and the maintenance cost of the mold is low; d. The internal stress of the product is very low, and the warping deformation is also very small, and the performance is relatively stable; e. The mold structure is relatively simple, and multiple cavities can be produced at a lower cost; f. Larger flat products can be formed; g. Uniform parts are formed without any marks, the surface is smooth, and no secondary modification is required; h. The product has high dimensional accuracy and low shrinkage.

[0068] In summary, the carbon fiber composite material elastic wing forming mold 1000 provided in the embodiment of the present application adopts a combination of molded blocks as the mold of the elastic wing, wherein the mold formed by the molded combination can be designed into any shape for assembly, and the demolding product is easy to take out. In addition, the lateral pressure block 5 is relied upon to provide support, positioning and air tightness requirements for the product. Therefore, the carbon fiber composite material elastic wing forming mold 1000 of the embodiment of the present application can not only ensure the air tightness of the mold, but also ensure that the mold has good demolding properties. Finally, the modular processing cycle is short and the designability is strong, which can greatly shorten the research and development cycle, shorten the operation time, reduce manual operation, reduce the research and development cost of the wing, and improve the competitive advantage of the product.

[0069] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] The above is a detailed introduction to a carbon fiber composite material wing forming mold provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A carbon fiber composite material wing forming mold, characterized in that: It includes an upper die, a lower die, a front baffle, a rear baffle and a lateral pressure block; The upper mold and the lower mold are fixedly connected through the front baffle and the rear baffle to form a space with one end open; The lateral pressure block is arranged in the open end of the space and is tightly connected with the upper die, the lower die, the front baffle and the rear baffle at the same time.

2. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The surface of the lower die that matches the upper die has two corners at the first end thereof respectively provided with first pits, and the corresponding two corners of the upper die are respectively provided with first cone pins.

3. The carbon fiber composite material wing forming mold according to claim 2, characterized in that: The surface of the lower die that matches the upper die has two corners at the second end thereof respectively provided with second cone pins, and the corresponding two corners of the upper die are respectively provided with second pits.

4. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The lower mold is provided with a first connecting hole of the lower mold, the first surface of the front baffle connected to the lower mold is provided with a first connecting hole of the front baffle, and the lower mold and the front baffle are fixedly connected through a first connecting member, the first connecting hole of the lower mold and the first connecting hole of the front baffle; The lower mold is provided with a second connecting hole of the lower mold, the first surface of the rear baffle connected to the lower mold is provided with a first connecting hole of the rear baffle, and the lower mold and the rear baffle are fixedly connected by a second connecting piece, the second connecting hole of the lower mold and the first connecting hole of the rear baffle.

5. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The upper mold is provided with a first connecting hole of the upper mold, and the second surface of the front baffle connected to the upper mold is provided with a second connecting hole of the front baffle, and the upper mold and the front baffle are fixedly connected by a third connecting member, the first connecting hole of the upper mold and the second connecting hole of the front baffle; The upper mold is provided with an upper mold second connecting hole, the second surface of the rear baffle connected to the upper mold is provided with a rear baffle second connecting hole, and the upper mold and the rear baffle are fixedly connected by a fourth connecting piece, the upper mold second connecting hole and the rear baffle second connecting hole.

6. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The roughness requirements for the mold forming surface, assembly surface and pocket surface are all Ra1.6, and the roughness requirements for the remaining surfaces are no greater than Ra6.

3.

7. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The assembly clearance of the mold is less than or equal to 0.1 mm.

8. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The profile tolerances of the mating surfaces of the upper die, the lower die and the lateral pressure block are all -0.2mm to 0mm, and the profile tolerances of the remaining mating surfaces are ±0.1mm.

9. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The non-working surface of the mold is coated with anti-rust paint and high-temperature resistant surface paint.

10. The carbon fiber composite material wing forming mold according to claim 1, characterized in that: The upper die, the lower die, the front baffle, the rear baffle and the lateral pressure block are all made of metal.

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