CN216031889U - Combined die for integrated molding of composite material lens hood framework - Google Patents
Combined die for integrated molding of composite material lens hood framework Download PDFInfo
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- CN216031889U CN216031889U CN202122493756.2U CN202122493756U CN216031889U CN 216031889 U CN216031889 U CN 216031889U CN 202122493756 U CN202122493756 U CN 202122493756U CN 216031889 U CN216031889 U CN 216031889U
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- composite material
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- light shield
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Abstract
A combined die for integrally forming a composite material lens hood frame comprises a forming external die, an internal die core block, a bottom plate, a circular core die, a shape-following uniform pressure plate and a longitudinal rib uniform pressure plate; the forming external mold is connected with the internal mold core block and the bottom plate through pin screws, the circular core mold is connected with the bottom plate through pin screws, and the longitudinal rib pressure equalizing plate is arranged in a square groove of the forming external mold. The composite material sunshade frame is formed by paving high-strength and high-modulus carbon fiber prepreg. In the forming and curing process, the shape-following pressure equalizing plate uniformly applies pressure to the T-shaped ribs of the composite material lens hood frame along the guide direction under the action of temperature and pressure, and the longitudinal rib pressure equalizing plate can apply pressure to the longitudinal ribs of the composite material lens hood frame. On the basis of improving the strength of the bearing structure and reducing the weight of the structure, the integral forming of the bearing frame structure is realized, and the size precision of the bearing frame is also ensured by the combined die.
Description
Technical Field
The utility model relates to the technical field of manufacturing of satellite bearing frames, in particular to a combined die for integrally forming a composite material sunshade frame.
Background
The satellite bearing frame structure provides bearing and load transfer for the satellite and each subsystem, and the structure of the satellite bearing frame structure needs higher specific rigidity and specific strength so as to ensure the dimensional stability of the satellite and the installation precision of each subsystem device. The carbon fiber composite material has the advantages of small density, low expansion coefficient, high specific strength and specific modulus, good designability and the like, and is an excellent choice for a satellite bearing frame structure. The designability of the carbon fiber composite material also endows the satellite bearing frame structure with diversified designs, improves the utilization rate of the satellite structure, and reduces the number and weight of satellite parts, thereby reducing the envelope size and weight of the whole satellite. But at the same time, the satellite bearing structure using the composite material is more complex, and great difficulty and challenge are brought to the forming of the satellite bearing structure.
The combined die for integrally forming the composite material lens hood frame realizes the integral forming of a satellite bearing frame structure on the basis of improving the strength of a bearing structure and reducing the weight of the structure, and the dimensional accuracy of the bearing frame is also ensured by the combined die.
Disclosure of Invention
The utility model aims to realize the integral forming of a light shield frame structure and ensure the dimensional precision of a product, and provides a combined die for the integral forming of a composite material light shield frame.
The specific implementation is as follows: a combined die for integrated molding of a composite material light shield frame comprises:
the forming external mold, the internal mold core block, the bottom plate, the circular core mold, the shape following pressure equalizing plate and the longitudinal rib pressure equalizing plate; the forming external mold is connected with the internal mold core block and the bottom plate through pin screws, the circular core mold is connected with the bottom plate through pin screws, and the longitudinal rib pressure equalizing plate is arranged in a square groove of the forming external mold.
The forming external mold consists of a plurality of split blocks, is provided with a waist-shaped positioning hole for connecting the internal mold core block, a threaded hole for connecting the bottom plate and the positioning hole, and is provided with a square groove corresponding to the longitudinal rib position of the composite material lens hood frame.
The inner die core block is provided with a plurality of threaded holes, and the positioning connecting bottom plate of the forming outer die and the forming outer die is provided with a plurality of positioning holes for positioning the forming outer die and the circular core die.
The round core mold is provided with a plurality of threaded holes and is connected with the bottom plate through pin screws.
The conformal pressure equalizing plate is arranged according to the inner shape size of the composite material light shield frame.
The conformal pressure equalizing plate is cured and molded by adopting an autoclave process and is arranged on the inner surface of the composite material light shield frame.
In a preferred embodiment of the utility model, the composite material light shield frame is made of carbon fiber prepreg layups.
In a preferred embodiment of the utility model, the molding outer die is provided with a glue overflow groove.
In a preferred embodiment of the utility model, the inclined openings are arranged among a plurality of split blocks of the forming external mold, so that the demolding is convenient.
In a preferred embodiment of the utility model, the inner mold core block is provided with a glue overflow groove.
In a preferred embodiment of the utility model, the bottom plate is provided with a conformal pressure equalizing plate limiting groove.
In a preferred embodiment of the utility model, a certain gap is left between the longitudinal rib pressure equalizing plate and the square groove on the forming external mold.
Drawings
FIG. 1 is a schematic view of a composite light shield frame construction;
fig. 2 is a schematic view of a combined mold for integrally molding a composite material light shield frame.
Detailed Description
The composite material light shield frame (100) is formed by paving high-strength high-modulus carbon fiber prepreg, the frame body is composed of longitudinal annular ribs outside, and the frame body is composed of T-shaped ribs and annular flanges inside. The used integrated into one piece mould of shaping includes: the forming outer die (200), the inner die core blocks (300), the bottom plate (400), the circular core die (500), the shape following pressure equalizing plate (600) and the longitudinal rib pressure equalizing plates (700) are integrally cured and formed by adopting an autoclave process.
Referring to fig. 1 and 2, the outer molding die (200) is composed of four groups of split blocks, wherein each group of split blocks is provided with kidney-shaped positioning holes and is connected with the inner die core block (300) through pin screws, and meanwhile, the split blocks of the outer molding die (200) are connected with the positioning holes on the bottom plate (400), so that the assembly precision of the outer molding die (200) and the inner die core block (300) can be ensured, and the contour dimension of the composite material light shield frame can be ensured.
The shape following pressure equalizing plate (600) comprises two pieces, the outline of the shape following pressure equalizing plate is the same as the inner shape size of the composite material light shield frame, a boss is arranged at the bottom of the shape following pressure equalizing plate and matched with a groove arranged on the bottom plate (400), and in the forming and curing process, the shape following pressure equalizing plate (600) uniformly applies pressure to the T-shaped rib of the composite material light shield frame (100) along the guide direction under the action of temperature and pressure.
The longitudinal rib pressure equalizing plates (700) are 7 groups in total, the number of the longitudinal ribs is the same as that of longitudinal ribs on the composite material sunshade frame (100), the longitudinal rib pressure equalizing plates (700) correspond to square grooves on the forming external mold (200), demolding cloth with adhesive is pasted on the surface of the longitudinal rib pressure equalizing plates, and a gap of 0.15-0.3mm is reserved between the longitudinal rib pressure equalizing plates and the square grooves on the forming external mold (200). In the curing process, the longitudinal rib pressure equalizing plate (700) can apply pressure to the longitudinal ribs of the composite material light shield frame (100), so that the frame quality is ensured.
Claims (13)
1. A combined die for integrally forming a composite material lens hood frame is characterized by comprising a forming external die, an internal die core block, a bottom plate, a circular core die, a conformal uniform pressure plate and a longitudinal rib uniform pressure plate; the forming external mold is connected with the internal mold core block and the bottom plate through pin screws, the circular core mold is connected with the bottom plate through pin screws, and the longitudinal rib pressure equalizing plate is arranged in a square groove of the forming external mold.
2. A combined mold for integral molding of a composite material light shield frame according to claim 1, wherein said external mold for molding is composed of a plurality of segments and is provided with kidney-shaped positioning holes for connecting the core blocks of the internal mold, and threaded holes and positioning holes for connecting the bottom plate.
3. The assembling die for integrally molding a composite material light shield frame as claimed in claim 1, wherein the outer molding die is provided with square grooves corresponding to longitudinal ribs of the composite material light shield frame.
4. The assembling die for integrally molding a composite material light shield frame as claimed in claim 1, wherein the outer molding die is provided with a glue overflow groove.
5. The assembling die for integrally molding a composite material light shield frame as claimed in claim 1, wherein an oblique opening is formed between a plurality of blocks of the outer molding die, so that the demolding is facilitated.
6. The combined mold for integral molding of a composite material light shield frame as claimed in claim 1, wherein the inner mold core block is provided with a plurality of threaded holes, and is connected with the outer molding mold in a positioning manner by pin screws.
7. The composite material light shield frame integrated molding combined die set according to claim 1, wherein the inner mold core block is provided with a glue overflow groove.
8. A combined mold for integrally molding a composite material light shield frame according to claim 1, wherein a plurality of positioning holes are provided on the bottom plate for positioning the molding outer mold and the circular core mold.
9. The assembling die for integrally molding a composite material light shield frame according to claim 1, wherein a conformal pressure equalizing plate limiting groove is formed on the bottom plate.
10. The assembling die for integrally molding a composite material shade frame according to claim 1, wherein the circular core die is provided with a plurality of threaded holes and is connected with the bottom plate through pin screws.
11. The composite light shield frame as claimed in claim 1, wherein said conformal pressure-equalizing plate is configured to conform to an inner dimension of the composite light shield frame.
12. The assembling die for integrally molding a composite material light shield frame according to claim 1, wherein the assembling die is cured and molded by autoclave process, and the conformal pressure equalizing plate is disposed on the inner surface of the composite material light shield frame.
13. The assembling die for integrally molding a composite material light shield frame as claimed in claim 1, wherein a certain gap is left between the longitudinal rib pressure-equalizing plate and the square groove on the molding outer die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493756.2U CN216031889U (en) | 2021-10-15 | 2021-10-15 | Combined die for integrated molding of composite material lens hood framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493756.2U CN216031889U (en) | 2021-10-15 | 2021-10-15 | Combined die for integrated molding of composite material lens hood framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216031889U true CN216031889U (en) | 2022-03-15 |
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ID=80549198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122493756.2U Active CN216031889U (en) | 2021-10-15 | 2021-10-15 | Combined die for integrated molding of composite material lens hood framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216031889U (en) |
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2021
- 2021-10-15 CN CN202122493756.2U patent/CN216031889U/en active Active
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