Composite material upper air inlet channel forming die

Abstract

The utility model discloses a composite material upper air inlet channel forming die which comprises a lower bottom plate, a second die assembly is arranged on the lower bottom plate, a first die assembly is arranged on the second die assembly, an upper baffle is arranged on the first die assembly, the first die assembly and the second die assembly are a plurality of block dies, and the upper baffle is arranged on the upper baffle. The first die assembly and the second die assembly are combined to form a product allowance line and a product edge line, the lower bottom plate, the second die assembly, the first die assembly and the upper baffle are combined and installed to form a male die structure, and the product allowance line is located at the combination position of the first die assembly and the second die assembly. Compared with the prior art, the composite material upper air inlet channel forming mold can guarantee the quality of the outer surface of a product and the quality of the inner surface of the product well, the whole mold is of a male mold structure after being combined, paving and pasting are more convenient, the production efficiency can be effectively improved, and high-quality products can be produced.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite material upper air intake duct forming dies, and in particular relates to a composite material upper air intake duct forming dies. Background Art

[0002] The air inlet is the entrance and passage for the air required by the jet engine. To meet the flight conditions, the inner surface of the air inlet should be smooth to reduce air resistance.

[0003] The air inlet generally adopts a combined structure mold, with the upper and lower molds closed and paved inside the mold cavity. Paving during production is relatively difficult and the efficiency is low. Moreover, this combined structure can only guarantee the quality of the product's outer surface, but wrinkles are prone to occur on the inner surface. The wrinkles in the air inlet will increase the air resistance and affect the flight state.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a composite material upper air intake duct forming die.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a composite material upper air intake duct forming die, which can solve the above problems.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a composite material upper air intake duct forming mold, including a lower base plate, a second mold assembly is installed on the lower base plate, a first mold assembly is installed on the second mold assembly, an upper baffle is installed on the first mold assembly, the first mold assembly and the second mold assembly are a plurality of block molds, and the first mold assembly and the second mold assembly are combined to form a product margin line and a product edge line.

[0008] In one or more embodiments of the present invention, the lower base plate, the second mold assembly, the first mold assembly, and the upper baffle plate are combined to form a male mold structure.

[0009] In one or more embodiments of the present invention, the product margin line is located at the combination of the first mold assembly and the second mold assembly.

[0010] In one or more embodiments of the present invention, the second mold assembly is mounted on the lower base plate by bolts.

[0011] In one or more embodiments of the present invention, a plurality of positioning pins are fixedly connected to the first mold assembly, a plurality of positioning holes are provided on the second mold assembly, and the first mold assembly is mounted on the second mold assembly via the positioning pins.

[0012] In one or more embodiments of the present invention, a plurality of positioning pins are fixedly connected to the first mold assembly, and the first mold assembly is movably mounted on the second mold assembly via the positioning pins.

[0013] In one or more embodiments of the present invention, a plurality of bolts are fixedly connected to the first mold assembly, a plurality of positioning holes are provided on the second mold assembly, the bolts on the first mold assembly pass through the positioning holes on the second mold assembly, and the first mold assembly and the second mold assembly are mounted together by nuts.

[0014] In one or more embodiments of the present invention, the first mold assembly includes a first block mold, a second block mold, a third block mold and a fourth block mold.

[0015] In one or more embodiments of the present invention, one end surface of the first block mold, the second block mold, the third block mold and the fourth block mold is a plane with an inclination.

[0016] In one or more embodiments of the present invention, the first block mold is provided with a first bolt hole and a first taking groove, the second block mold is provided with a second bolt hole and a second taking groove, the third block mold is provided with a third bolt hole and a third taking groove, and the fourth block mold is provided with a fourth bolt hole and a fourth taking groove.

[0017] In one or more embodiments of the present invention, the second mold assembly includes a fifth mold block, a sixth mold block, a seventh mold block, and an eighth mold block.

[0018] Compared with the prior art, the utility model provides a composite material upper air intake duct forming mold, which can ensure the quality of the product's outer surface while also ensuring the quality of the product's inner surface. After the mold is assembled, the overall structure is a positive mold, which makes laying more convenient, and can effectively improve production efficiency and produce high-quality products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural schematic diagram of a composite material upper air intake duct forming mold in one embodiment of the utility model;

[0021] Figure 2 An exploded view of a composite material upper air intake duct forming mold in one embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection between a first mold assembly and a second mold assembly of a composite material upper air intake duct forming mold in one embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a second mold assembly of a composite material upper air intake duct forming mold in one embodiment of the utility model;

[0024] Figure 5 It is an exploded view of a second mold component of a composite material upper air intake duct forming mold in one embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of a composite material upper air intake duct forming mold after laying composite material in one embodiment of the utility model.

[0026] Description of main reference numerals:

[0027] 1. First block mold; 101, first bolt hole; 102, first take-up slot; 103, first positioning pin; 2. Second block mold; 201, second bolt hole; 202, second take-up slot; 203, second positioning pin; 3. Third block mold; 301, third bolt hole; 302, third take-up slot; 303, third positioning pin; 4. Fourth block mold; 401, fourth bolt hole; 402, fourth take-up slot; 403, third positioning pin; 5. Fifth block mold; 5 01, first positioning hole; 502, fifth bolt hole; 6, sixth block mold; 601, second positioning hole; 602, sixth bolt hole; 7, seventh block mold; 701, third positioning hole; 702, seventh bolt hole; 8, eighth block mold; 801, fourth positioning hole; 802, eighth bolt hole; 9, upper baffle; 901, ninth bolt hole; 10, lower base plate; 1001, tenth bolt hole; 1002, lifting eye hole; 11, product margin line; 12, product edge line. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1 and Figure 6 As shown, a composite material upper air intake duct forming mold in one embodiment of the utility model includes a lower base plate 10, and a tenth bolt hole 1001 and a lifting eye hole 1002 are opened on the upper panel of the lower base plate 10. A second mold assembly is movably mounted on the lower base plate 10, a first mold assembly is movably mounted on the second mold assembly, and an upper baffle 9 is movably mounted on the first mold assembly. When the composite material upper air intake duct forming mold is assembled, the whole is a positive mold structure, and the appearance is smooth, and it is more convenient and quick to lay the composite material on the outer surface. The connection between the assembled first mold and the second mold assembly forms a product margin line 11 and a product edge line 12.

[0030] Specifically, when producing and paving composite materials, the composite materials are paved from the position where the upper baffle 9 is connected to the first mold assembly to cover the product margin line 11, so that the molding size of the composite materials meets the process requirements. The product margin line 11 can control the size of the composite materials after molding and ensure the yield.

[0031] Figures 2 to 6 As shown, the first mold assembly includes a first block mold 1, a second block mold 2, a third block mold 3, and a fourth block mold 4, and the second mold assembly includes a fifth block mold 5, a sixth block mold 6, a seventh block mold 7, and an eighth block mold 8. Because the first mold assembly and the second mold assembly are multiple block molds, when demolding, each block mold has a small contact surface with the product, which can ensure that the inner surface of the product and the flange of the product are not damaged, and it is easier to demold and remove the product.

[0032] One end surface of the first block mold 1 , the second block mold 2 , the third block mold 3 , and the fourth block mold 4 is an inclined plane, which is convenient for observation during assembly and disassembly.

[0033] Positioning pins are integrally formed on the inclined surfaces of the first block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4. The fifth block mold 5, the sixth block mold 6, the seventh block mold 7, and the eighth block mold 8 are provided with mounting platforms matching the inclined surfaces of the first block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4, and the mounting platforms of the fifth block mold 5, the sixth block mold 6, the seventh block mold 7, and the eighth block mold 8 are provided with positioning holes matching the first block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4.

[0034] When assembling the assembled block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4 to the fifth block mold 5, the sixth block mold 6, the seventh block mold 7, and the eighth block mold 8, because the block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4 have inclined surfaces, better observation is possible and alignment of the positioning holes is convenient.

[0035] Specifically, the positioning pin on the first block mold 1 is the first positioning pin 103 , the positioning hole on the sixth block mold 6 is the second positioning hole 601 , and the first block mold 1 is inserted into the second positioning hole 601 on the sixth block mold 6 through the first positioning pin 103 .

[0036] The positioning pin on the second block mold 2 is the second positioning pin 203, the positioning pin on the third block mold 3 is the third positioning pin 303, the positioning pin on the fourth block mold 4 is the fourth positioning pin 403, the positioning hole on the fifth block mold 5 is the first positioning hole 501, the positioning hole on the seventh block mold 7 is the third positioning hole 701, and the positioning hole on the eighth block mold 8 is the fourth positioning hole 801.

[0037] Specifically, the second block mold 2 is plugged into and combined with the seventh block mold 7 , the third block mold 3 is plugged into and combined with the eighth block mold 8 , and the fourth block mold 4 is plugged into and combined with the fifth block mold 5 .

[0038] In order to facilitate the combination of the first block mold 1 and the sixth block mold 6, a first positioning pin 103 is provided on the first block mold 1. When combining, the first positioning pin 103 can be held with the index finger of the same hand to combine the first block mold 1 and the sixth block mold 6. At the same time, because the first positioning pin 103 is provided, the first block mold 1 is more portable, which is not only convenient to take, labor-saving to use, but also saves materials. Similarly, the second block mold 2, the third block mold 3, and the fourth block mold 4 are respectively provided with a second positioning pin 203, a third positioning pin 303, and a fourth positioning pin 403.

[0039] like Figure 1 and Figure 2As shown, in order to make the assembled first mold assembly more stable, an upper baffle 9 is movably installed on an end surface of the first mold assembly away from the second mold assembly through bolts.

[0040] Specifically, the first block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4 are respectively provided with a first bolt hole 101, a second bolt hole 201, a third bolt hole 301, and a fourth bolt hole 401, and the upper baffle plate 9 is provided with a ninth bolt hole 901. The ninth bolt hole 901 matches the combined first bolt hole 101, the second bolt hole 201, the third bolt hole 301, and the fourth bolt hole 401. By covering the upper baffle plate 9 on the combined first block mold 1, the second block mold 2, the third block mold 3, and the fourth block mold 4, the first mold assembly can be connected together using bolts, making the first mold assembly more stable.

[0041] Specifically, multiple bolts can be screwed into the first bolt hole 101, the second bolt hole 201, the third bolt hole 301, the fourth bolt hole 401 and the ninth bolt hole 901 to prevent the internal thread of one of the bolt holes from being damaged, causing the block mold and the upper baffle 9 to be unusable.

[0042] like Figures 1 to 3 As shown, the assembled upper baffle plate 9, the first mold assembly, and the second mold assembly are movably connected to the lower base plate 10 through bolts, so that the composite material upper air intake duct forming mold can be assembled.

[0043] Specifically, a fifth bolt hole 502 is opened on the fifth block mold 5, a sixth bolt hole 602 is opened on the sixth block mold 6, a seventh bolt hole 702 is opened on the seventh block mold 7, and an eighth bolt hole 802 is opened on the eighth block mold 8. The combined fifth bolt hole 502, sixth bolt hole 602, seventh bolt hole 702, and eighth bolt hole 802 match the tenth bolt hole 1001 on the lower base plate 10, so that the second mold assembly can be fixed to the lower base plate 10 by bolts.

[0044] The second mold assembly assembled on the lower base plate 10 forms an annular product edge line 12. When laying the composite material, it is sufficient to lay it to the position of the product edge line 12. The product edge line 12 can control the length of the composite material when laying, so as to save more composite materials.

[0045] As shown in the first block mold 1 and the second block mold 2, a lifting ring is fixedly connected in the lifting ring hole 1002 of the lower base plate 10. After the composite material is laid, the lifting ring is connected with a lifting tool for transportation.

[0046] When in use, the prepreg is laid on the assembled lower base plate 10, the second mold assembly, the first mold assembly, and the upper baffle 9, and the prepreg covers the product surplus line 11 on the mold, and at the same time, the prepreg is laid to the product edge line 12. After laying, it is packaged in the order of release cloth, non-porous isolation film, breathable felt, and vacuum bag, and cured in an autoclave. After curing, it is taken out of the can and the auxiliary materials are removed.

[0047] After removing the auxiliary materials, first remove the bolts on the lower bottom plate 10 and the upper baffle plate 9, and then disassemble the fifth block mold 5, the sixth block mold 6, the seventh block mold 7, and the eighth block mold 8. Then disassemble the first block mold 1, then disassemble the second block mold 2 and the fourth block mold 4, and finally disassemble the third block mold 3 to obtain the product.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A composite material upper air intake duct forming die, characterized in that: It includes a lower base plate, on which a second mold assembly is installed, on which a first mold assembly is installed, on which an upper baffle plate is installed, the first mold assembly is composed of a plurality of divided molds, and the first mold assembly and the second mold assembly are combined to form a product margin line and a product edge line.

2. The composite material upper air intake duct forming die according to claim 1, characterized in that: The lower base plate, the second mold assembly, the first mold assembly and the upper baffle plate are assembled and installed to form a male mold structure.

3. The composite material upper air intake duct forming die according to claim 1, characterized in that: The product margin line is located where the first mold assembly and the second mold assembly are combined.

4. The composite material upper air intake duct forming die according to claim 3, characterized in that: The second mold assembly is mounted on the lower base plate by bolts.

5. The composite material upper air intake duct forming die according to claim 3, characterized in that: The first mold assembly is fixedly connected with a plurality of positioning pins, the second mold assembly is provided with a plurality of positioning holes, and the first mold assembly is mounted on the second mold assembly through the positioning pins.

6. The composite material upper air intake duct forming die according to claim 3, characterized in that: The first mold assembly is fixedly connected with a plurality of bolts, the second mold assembly is provided with a plurality of positioning holes, the bolts on the first mold assembly penetrate the positioning holes on the second mold assembly, and the first mold assembly and the second mold assembly are mounted together by nuts.

7. The composite material upper air intake duct forming die according to claim 6, characterized in that: The first mold assembly includes a first segment mold, a second segment mold, a third segment mold, and a fourth segment mold.

8. The composite material upper air intake duct forming die according to claim 7, characterized in that: One end surface of the first block mold, the second block mold, the third block mold and the fourth block mold is an inclined plane.

9. The composite material upper air intake duct forming die according to claim 8, characterized in that: The first block mold is provided with a first bolt hole and a first taking slot, the second block mold is provided with a second bolt hole and a second taking slot, the third block mold is provided with a third bolt hole and a third taking slot, and the fourth block mold is provided with a fourth bolt hole and a fourth taking slot.

10. The composite material upper air intake duct forming die according to claim 6, characterized in that: The second mold assembly includes a fifth mold block, a sixth mold block, a seventh mold block, and an eighth mold block.

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