CN110561778A - Composite material small pit forming and pressurizing device and method - Google Patents
Composite material small pit forming and pressurizing device and method Download PDFInfo
- Publication number
- CN110561778A CN110561778A CN201910692780.3A CN201910692780A CN110561778A CN 110561778 A CN110561778 A CN 110561778A CN 201910692780 A CN201910692780 A CN 201910692780A CN 110561778 A CN110561778 A CN 110561778A
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- CN
- China
- Prior art keywords
- composite material
- small
- conical
- pressurizing
- pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
the invention discloses a composite material small pit forming and pressurizing device which comprises a forming die and a composite material structural member, wherein a small pit is arranged on the forming die, a small boss is arranged at the bottom of the composite material structural member and arranged in the small pit, a plurality of pressurizing blocks which are closely distributed are arranged in the small boss, an arc-shaped groove is arranged at the vertex angle of each pressurizing block, the arc-shaped grooves are sequentially connected to form a conical hole, and a conical core shaft is arranged in the conical hole.
Description
Technical Field
The invention relates to the technical field of technological equipment, in particular to a composite material small pit forming and pressurizing device and a pressurizing method.
background
The composite material structural member has the advantages of light weight, high strength and rigidity, good forming manufacturability and the like, is more and more widely applied in the manufacturing process of airplanes, and has a more complex shape.
The composite material structural member with a more complex shape can be manufactured by adopting a mode of integral forming or combining and assembling after forming each part. Compared with a combined assembly mode, the integrated forming mode has the advantages of high precision, short period and light weight, and is increasingly applied to the production process of complex composite material structural parts.
Some composite material structural members have pits with smaller sizes, and the pits are directly pressurized in a vacuum bag vacuumizing mode in the forming process, particularly the phenomenon of bridging at corners is caused. The composite material at the position is loose, and the fiber layer is easy to remove in the subsequent wall thickness repairing process, so that the strength of the composite material structural member is seriously influenced.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a composite material pit forming and pressurizing device and a pressurizing method, aiming at solving the problems that the pit structure of a composite material structural member is difficult to pressurize in the forming process and is easy to cause looseness.
The technical scheme of the invention is as follows:
The small pit forming and pressurizing device for the composite material comprises a forming die and a composite material structural member, wherein a small pit is formed in the forming die, a small boss is arranged at the bottom of the composite material structural member, the small pit is arranged in the small pit, a plurality of pressurizing blocks which are closely arranged are arranged in the small boss, an arc-shaped groove is formed in the top angle of each pressurizing block, the arc-shaped grooves are sequentially connected to form a conical hole, and a conical core shaft is arranged in the conical hole.
the upper part of the conical hole is a horn mouth, and the lower part of the conical hole is a cylindrical hole.
The upper part of the conical mandrel is a conical column, and the lower part of the conical mandrel is a threaded column.
The conicity of the bell mouth is consistent with that of the conical column.
The pressing block is made of metal materials.
The inner wall of the cylindrical hole is provided with internal threads.
and the threaded column is provided with an external thread matched with the internal thread.
A composite material pit forming and pressurizing device comprises the following steps:
step 1: paving and pasting the raw materials of the composite material structural part on a forming die to form a small boss at the bottom of the composite material structural part;
step 2: placing a small boss at the bottom of the composite material structural member in a small concave pit on a forming die;
And step 3: all the pressurizing blocks are combined and placed in the small pits, an arc-shaped groove is formed in the vertex angle of each pressurizing block, and the arc-shaped grooves are sequentially connected to form a conical hole;
and 4, step 4: and screwing the conical core shaft into the threaded hole at the bottom of the conical hole, expanding the pressurizing block towards the periphery under the action of the conical core shaft, and pressing the wall surface of the small boss on the peripheral inner wall of the small pit to complete pressurization.
The invention has the beneficial effects that: the small pit forming and pressurizing device and method for the composite material are provided, so that the pressurizing balance of the small pit structure of the composite material structural member in the forming process is improved, and the product size precision is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
the labels in the figure are: 1. forming die, 2, composite material structural part, 3, briquetting, 4, toper dabber, 41, toper post, 42, screw thread post, 5, cylinder hole, 6, horn mouth.
Detailed Description
The invention is further described with reference to the accompanying drawings, and the composite material pit forming and pressurizing device comprises a forming die 1 and a composite material structural part 2, wherein a small pit is arranged on the forming die 1, a small boss is arranged at the bottom of the composite material structural part 2 and is arranged in the small pit, four pressurizing blocks 3 which are closely arranged are arranged in the small pit, an arc-shaped groove is arranged at the top angle of each pressurizing block 3, the arc-shaped grooves are sequentially connected to form a tapered hole, and a tapered mandrel 4 is arranged in the tapered hole.
The tapered mandrel 4 has a tapered column 41 at the upper portion and a threaded column 42 at the lower portion. The upper part of the conical hole is provided with a bell mouth 6, the lower part of the conical hole is provided with a cylindrical hole 5, and the conicity of the bell mouth 6 is consistent with that of the conical column 41.
The pressing block 3 is made of a metal material.
the inner wall of the cylindrical hole 5 is provided with an internal thread, and the threaded column 42 is provided with an external thread matched with the internal thread.
A composite material pit forming and pressurizing device comprises the following steps:
step 1: paving and pasting the raw materials of the composite material structural part 2 on the forming die 1 to form a small boss at the bottom of the composite material structural part 2;
Step 2: placing a small boss at the bottom of the composite material structural member 2 in a small concave pit on the forming die 1;
And step 3: the four pressurizing blocks 3 are combined and placed in the small pits, an arc-shaped groove is formed in the top corner of each pressurizing block 3, and the arc-shaped grooves are sequentially connected to form a conical hole;
And 4, step 4: and screwing the conical core shaft 4 into a threaded hole at the bottom of the conical hole, expanding the pressurizing block 3 to the periphery under the action of the conical core shaft 4, pressing the wall surface of the small boss on the peripheral inner wall of the small pit to complete pressurization, sealing the vacuum bag in the rest part of the composite material small pit structural member 2, and vacuumizing and compacting.
Claims (8)
1. the utility model provides a combined material pit shaping pressure device which characterized in that: the composite material structure comprises a forming die (1) and a composite material structure member (2), wherein a small pit is formed in the forming die (1), a small boss is arranged at the bottom of the composite material structure member (2), the small boss is arranged in the small pit, a plurality of pressing blocks (3) which are closely arranged are arranged in the small pit, an arc-shaped groove is formed in the vertex angle of each pressing block (3), the arc-shaped grooves are sequentially connected to form a conical hole, and a conical core shaft (4) is arranged in the conical hole.
2. The composite material dimple forming and pressurizing device as claimed in claim 1, wherein: the upper part of the conical hole is provided with a bell mouth (6), and the lower part of the conical hole is provided with a cylindrical hole (5).
3. The composite material dimple forming and pressurizing device as claimed in claim 1, wherein: the upper part of the conical mandrel (4) is provided with a conical column (41), and the lower part is provided with a threaded column (42).
4. The composite material dimple forming and pressurizing device as claimed in claim 2, wherein: the conicity of the bell mouth (6) is consistent with that of the conical column (41).
5. The composite material dimple forming and pressurizing device as claimed in claim 1, wherein: the pressurizing block (3) is made of metal materials.
6. The composite material dimple forming and pressurizing device as claimed in claim 2, wherein: the inner wall of the cylindrical hole (5) is provided with internal threads.
7. the composite material dimple forming and pressurizing device as claimed in claim 3, wherein: and the threaded column (42) is provided with an external thread matched with the internal thread.
8. The composite material dimple forming and pressurizing device as claimed in claim 1, wherein: the pressurizing method comprises the following steps:
Step 1: paving and pasting the raw materials of the composite material structural part (2) on the forming die (1) to form a small boss at the bottom of the composite material structural part (2);
Step 2: placing a small boss at the bottom of the composite material structural member (2) in a small concave pit on the forming die (1);
And step 3: all the pressurizing blocks (3) are combined and placed in the small pits, an arc-shaped groove is formed in the vertex angle of each pressurizing block (3), and the arc-shaped grooves are sequentially connected to form a conical hole;
And 4, step 4: and screwing the conical core shaft (4) into the threaded hole at the bottom of the conical hole, expanding the pressurizing block (3) towards the periphery under the action of the conical core shaft (4), and pressing the wall surface of the small boss on the peripheral inner wall of the small pit to complete pressurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692780.3A CN110561778B (en) | 2019-07-26 | 2019-07-26 | Composite material small pit forming and pressurizing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692780.3A CN110561778B (en) | 2019-07-26 | 2019-07-26 | Composite material small pit forming and pressurizing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110561778A true CN110561778A (en) | 2019-12-13 |
| CN110561778B CN110561778B (en) | 2021-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910692780.3A Active CN110561778B (en) | 2019-07-26 | 2019-07-26 | Composite material small pit forming and pressurizing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110561778B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102046348A (en) * | 2008-06-11 | 2011-05-04 | 埃尔塞乐公司 | Method for producing a part comprising a hollow body made from a composite material |
| CN106507742B (en) * | 2006-12-01 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | A kind of method of manufacture composite material hollow cap strip |
| CN102317056A (en) * | 2009-02-12 | 2012-01-11 | 科林伦合成物股份公司 | Method and apparatus for producing parts of fiber reinforced plastics |
| CN104669651A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Pressurizing device of sealed cross-section casing pipe |
| CN205467426U (en) * | 2016-03-02 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Be used for fashioned mechanical pressure device of compound material covering |
-
2019
- 2019-07-26 CN CN201910692780.3A patent/CN110561778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507742B (en) * | 2006-12-01 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | A kind of method of manufacture composite material hollow cap strip |
| CN102046348A (en) * | 2008-06-11 | 2011-05-04 | 埃尔塞乐公司 | Method for producing a part comprising a hollow body made from a composite material |
| CN102317056A (en) * | 2009-02-12 | 2012-01-11 | 科林伦合成物股份公司 | Method and apparatus for producing parts of fiber reinforced plastics |
| CN104669651A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Pressurizing device of sealed cross-section casing pipe |
| CN205467426U (en) * | 2016-03-02 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Be used for fashioned mechanical pressure device of compound material covering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110561778B (en) | 2021-11-02 |
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