CN220313905U - Forming die of composite landing gear with pipeline cavity inside - Google Patents
Forming die of composite landing gear with pipeline cavity inside Download PDFInfo
- Publication number
- CN220313905U CN220313905U CN202320910069.2U CN202320910069U CN220313905U CN 220313905 U CN220313905 U CN 220313905U CN 202320910069 U CN202320910069 U CN 202320910069U CN 220313905 U CN220313905 U CN 220313905U
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- Prior art keywords
- forming die
- landing gear
- assembly
- root
- forming
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000000465 moulding Methods 0.000 claims abstract description 35
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000006260 foam Substances 0.000 description 9
- 229920000049 Carbon (fiber) Polymers 0.000 description 8
- 239000004917 carbon fiber Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000012528 membrane Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005187 foaming Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Abstract
The utility model discloses a forming die of a composite undercarriage with a pipeline cavity inside, which comprises a bottom plate, a forming die assembly I, a first forming die and a second forming die, wherein the forming die assembly I is fixed on the bottom plate; the second forming die assembly is buckled with the second forming die assembly to form a forming die cavity of the landing gear, and the second forming die assembly are locked and fixed through a fastener; the flexible inner mold is arranged in the molding cavity of the landing gear in a penetrating way, and two ends of the flexible inner mold respectively penetrate out of two ends of the first molding mold assembly; and the top connecting plate is arranged at the top of the first forming die assembly and the second forming die assembly and is fixed with the first forming die assembly and the second forming die assembly through locking pieces. The utility model can realize one-step molding of the landing gear and the cavity of the inner pipeline, has high molding efficiency, and the flexible inner film can solve the molding problem of the inner pipeline with complex curvature of the landing gear, thereby effectively ensuring the molding quality of the inner pipeline.
Description
Technical Field
The utility model relates to the technical field of mold processing, in particular to a mold of a composite material landing gear with a pipeline cavity inside.
Background
The composite landing gear not only ensures the strength, but also needs to be manufactured into a pipeline for threading, and the conventional manufacturing method of the composite landing gear comprises the following steps:
1. firstly, processing a foam sandwich, then wrapping a composite material on the outer surface of the foam sandwich, and then performing compression molding, wherein the molding mode has higher processing difficulty and low production efficiency for the foam with complex appearance, and in addition, the foam of parts with thinner edges cannot be subjected to mechanical molding;
2. if an internal foaming mode is adopted, two common manufacturing modes are adopted for the internal mold, one is that an air bag film is used as the internal mold for molding, and the disadvantage of the mode is that the internal mold is particularly easy to block when encountering a pipeline with larger internal bending radian; in addition, the wax is poured into an internal mold to be molded, and then heated to melt the wax and flow out of the cavity after foaming is finished, so that the wax can be repeatedly used, but the wax needs to be poured again for molding each time, and the efficiency is low.
Disclosure of Invention
The utility model aims to: in view of the above-mentioned problems and disadvantages of the prior art, it is an object of the present utility model to provide a mold for forming a composite landing gear with a cavity in the interior of the composite landing gear.
The technical scheme is as follows: in order to achieve the above purpose, the forming die of the composite landing gear with the pipeline cavity inside comprises a bottom plate, a first forming die assembly, a second forming die assembly and a second forming die assembly, wherein the first forming die assembly is fixed on the bottom plate, and reinforcing side plates are arranged on two sides of the first forming die assembly;
the second forming die assembly is buckled with the first forming die assembly to form a forming die cavity of the landing gear, and the second forming die assembly and the first forming die assembly are locked and fixed through a fastener;
the flexible inner mold is arranged in the molding cavity of the landing gear in a penetrating way, and two ends of the flexible inner mold respectively penetrate out of two ends of the first molding mold assembly;
and the top connecting plate is arranged at the top of the first forming die assembly and the second forming die assembly and is fixed with the first forming die assembly and the second forming die assembly through locking pieces.
Further, the first forming die assembly comprises a left root outer forming die, a left forming die, a middle forming die, a right forming die and a right root outer forming die;
the first middle forming die is arranged between the first left forming die and the first right forming die, the first left root forming die is arranged outside the first left forming die, and the first right root forming die is arranged outside the first right forming die.
Further, side connecting plates are arranged between the left root outer side forming die and the left side forming die I and between the right root outer side forming die and the right side forming die I.
Further, a group of positioning columns are arranged on the inner sides of the tops of the left root outer side forming die and the right root outer side forming die. The design of spacer is convenient for carry with the inside moulded die of left side root outside moulded die when the lock, avoids the lock to take place the skew, influences the shaping quality of undercarriage.
Further, the left root outside forming die and the right root outside forming die are respectively provided with a flexible inner membrane through hole. The flexible inner membrane is made of a high polymer material, has better toughness after being inflated at high temperature, and the design of the through holes of the flexible inner membrane can be taken out from the through holes of the flexible inner membrane and reused after the product is manufactured, so that the use is simple, and the efficiency is improved by 30 percent compared with that of the wax inner mould.
Further, the second forming die assembly comprises a left root inner forming die, a left second forming die, a middle second forming die, a right second forming die and a right root inner forming die; the left side moulded die II and the right side moulded die II are respectively arranged on two sides of the middle moulded die II, the left side root part inner side moulded die is arranged on the outer side of the left side moulded die II, and the right side root part inner side moulded die is arranged on the outer side of the right side moulded die II.
Further, a group of positioning holes are formed in the left root outer side forming die and the right root inner side forming die.
The technical scheme can be seen that the beneficial effects of the utility model are as follows:
(1) The forming die for the composite material landing gear with the pipeline cavity inside is characterized in that a carbon fiber composite material is attached to the inner surfaces of a first forming die assembly and a second forming die assembly, a flexible inner film is placed into the carbon fiber composite material and inflated, an inner space formed by the carbon fiber composite material is filled with foam powder, finally the die is heated, foam and the carbon fiber composite material are cured and then demolded, and a flexible inner die is taken out, so that one-step forming of the landing gear is realized, the forming efficiency is high, the flexible inner film can solve the problem of forming an inner pipeline with complex curvature of the landing gear, and the problem of forming the pipeline cavity inside is guaranteed.
(2) The forming die for the composite undercarriage with the pipeline cavity in the utility model has the advantages that the flexible inner die can be taken out from the opening and reused after the product is manufactured, the production cost is reduced, the use is simple, and the efficiency is improved by 30 percent compared with that of the waxed inner die.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model with the top web removed;
FIG. 3 is a schematic view of a structure of the present utility model with a second mold assembly removed;
FIG. 4 is a schematic view showing the structure of a left root outer molding die according to the present utility model;
fig. 5 is a schematic view showing the structure of the right root inner mold according to the present utility model.
Detailed Description
The utility model is further elucidated below in connection with the drawings and the specific embodiments.
The molding die of the composite landing gear with the pipeline cavity inside comprises a bottom plate 1 and a first molding die assembly 2, wherein the first molding die assembly 2 is fixed on the bottom plate 1, and reinforcing side plates 3 are arranged on two sides of the first molding die assembly 2; the second forming die assembly 4 is buckled with the first forming die assembly 2 to form a forming die cavity of the landing gear 100, and the second forming die assembly and the first forming die assembly are locked and fixed through a fastener; the flexible internal mold 6 is arranged in the molding cavity of the landing gear 100 in a penetrating way, and two ends of the flexible internal mold penetrate out of two ends of the first molding die assembly 2 respectively; and a top connecting plate 7 which is arranged on the top of the first forming die assembly 2 and the second forming die assembly 4 and is fixed with the first forming die assembly 2 and the second forming die assembly 4 through locking pieces.
Wherein, the first molding module 2 comprises a left root outer molding die 21, a left side molding die 22, a middle molding die 23, a right side molding die 24 and a right root outer molding die 25; the first middle forming die 23 is disposed between the first left forming die 22 and the first right forming die 24, the first left root forming die 21 is disposed outside the first left forming die 22, and the second right root forming die 25 is disposed outside the first right forming die 24. The side connection plates 8 are respectively arranged between the left root outer side forming die 21 and the left side forming die I22, and between the right root outer side forming die 25 and the right side forming die I24. The second forming die assembly 4 comprises a left root inner forming die 41, a left second forming die 42, a middle second forming die 43, a right second forming die 44 and a right root inner forming die 45; the second left side forming die 42 and the second right side forming die 44 are respectively arranged on two sides of the second middle forming die 43, the inner left side root forming die 41 is arranged on the outer side of the second left side forming die 42, and the inner right side root forming die 45 is arranged on the outer side of the second right side forming die 44.
In this embodiment, the left root outer molding die 21 and the right root outer molding die 25 are each provided with a flexible inner film through hole 201. The design of the flexible inner membrane through hole 201 can be taken out from the flexible inner membrane through hole 201 and reused after the product is manufactured, the use is simple, and the efficiency is improved by 30% compared with that of a waxed inner mould.
As shown in fig. 4, a set of positioning posts 200 are provided on the top inner sides of the left root outer molding die 21 and the right root outer molding die 25.
As shown in fig. 5, a set of positioning holes 202 are provided in the left root outer side molding die 41 and the right root inner side molding die 45.
The specific manufacturing process of the landing gear is as follows:
(1) Paving carbon fiber composite materials on the inner surfaces of the first forming die assembly 2 and the second forming die assembly 4, and putting the flexible inner film 6 into the carbon fiber composite materials and inflating;
(2) Then filling the cavity between the carbon fiber composite material and the inner mold with foaming foam powder according to the volume of the cavity and the foam density;
(3) And the first molding assembly 2 and the second molding assembly 3 are buckled, then heated according to a heating curve, and the foam foaming and carbon fiber composite material is demoulded and taken out of the flexible inner mold 6 after being solidified.
The examples are intended to illustrate the utility model and not to limit its scope, and after reading the utility model, various equivalents of the utility model by those skilled in the art are within the scope of the utility model as defined by the claims appended hereto.
Claims (7)
1. A forming die of composite landing gear with a pipeline cavity inside is characterized in that:
comprises a bottom plate (1),
a first forming die assembly (2) fixed on the bottom plate (1), wherein reinforcing side plates (3) are arranged on two sides of the first forming die assembly (2);
the second forming die assembly (4) is buckled with the first forming die assembly (2) to form a forming die cavity of the landing gear (100), and the second forming die assembly and the first forming die assembly are locked and fixed through a fastener;
the flexible inner mold (6) penetrates through the inside of the molding cavity of the landing gear (100), and two ends of the flexible inner mold penetrate out of two ends of the first molding mold assembly (2) respectively;
and the top connecting plate (7) is arranged at the top of the first forming die assembly (2) and the second forming die assembly (4) and is fixed with the first forming die assembly (2) and the second forming die assembly (4) through locking pieces.
2. A mould for forming a composite landing gear with a pipe cavity inside according to claim 1, wherein: the first forming die assembly (2) comprises a left root outer forming die (21), a left forming die (22), a middle forming die (23), a right forming die (24) and a right root outer forming die (25); the first middle forming die (23) is arranged between the first left forming die (22) and the first right forming die (24), the outer forming die (21) of the left root part is arranged on the outer side of the first left forming die (22), and the outer forming die (25) of the right root part is arranged on the outer side of the first right forming die (24).
3. A mould for forming a composite landing gear with a pipe cavity inside according to claim 2, wherein: side connecting plates (8) are arranged between the left root outer side forming die (21) and the left side forming die I (22) and between the right root outer side forming die (25) and the right side forming die I (24).
4. A mould for forming a composite landing gear with a pipe cavity inside according to claim 3, wherein: and a group of positioning columns (200) are arranged on the inner sides of the tops of the left root outer side forming die (21) and the right root outer side forming die (25).
5. A mold for forming a composite landing gear with a pipe cavity therein as defined in claim 4, wherein: the left root outer forming die (21) and the right root outer forming die (25) are respectively provided with a flexible inner film through hole (201).
6. A mould for forming a composite landing gear with a pipe cavity therein as claimed in claim 5, wherein: the second forming die assembly (4) comprises a left root inner forming die (41), a left second forming die (42), a middle second forming die (43), a right second forming die (44) and a right root inner forming die (45); the left side forming die II (42) and the right side forming die II (44) are respectively arranged on two sides of the middle forming die II (43), the left side root part inner forming die (41) is arranged on the outer side of the left side forming die II (42), and the right side root part inner forming die (45) is arranged on the outer side of the right side forming die II (44).
7. A mould for forming a composite landing gear with a pipe cavity therein as claimed in claim 6, wherein: a group of positioning holes (202) are formed in the left root inner forming die (41) and the right root inner forming die (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320910069.2U CN220313905U (en) | 2023-04-21 | 2023-04-21 | Forming die of composite landing gear with pipeline cavity inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320910069.2U CN220313905U (en) | 2023-04-21 | 2023-04-21 | Forming die of composite landing gear with pipeline cavity inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220313905U true CN220313905U (en) | 2024-01-09 |
Family
ID=89417108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320910069.2U Active CN220313905U (en) | 2023-04-21 | 2023-04-21 | Forming die of composite landing gear with pipeline cavity inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220313905U (en) |
-
2023
- 2023-04-21 CN CN202320910069.2U patent/CN220313905U/en active Active
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