CN212124251U - Composite material forming die with adjustable clamping device - Google Patents
Composite material forming die with adjustable clamping device Download PDFInfo
- Publication number
- CN212124251U CN212124251U CN202020670619.4U CN202020670619U CN212124251U CN 212124251 U CN212124251 U CN 212124251U CN 202020670619 U CN202020670619 U CN 202020670619U CN 212124251 U CN212124251 U CN 212124251U
- Authority
- CN
- China
- Prior art keywords
- die
- clamping plate
- composite material
- adjustable clamping
- adjustable
- 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.)
- Active
Links
Images
Abstract
The utility model provides a composite material forming die with adjustable clamping devices, which comprises an upper die, a lower die and a plurality of adjustable clamping devices; the adjustable clamping devices are uniformly and tightly distributed on the periphery of the upper die of the die; the adjustable clamping device comprises a clamping plate and a fastener; the clamping plate can move up and down relative to the upper die of the die; the upper part of the clamping plate is provided with a strip-shaped through hole for limiting the vertical moving range of the clamping plate; the clamping plate is fixed on the upper die of the die by a fastener penetrating through the strip-shaped through hole; a mould groove matched with the clamping plate is formed in the corresponding position of the lower mould of the mould so that the lower part of the clamping plate can be inserted; when the clamping plate moves to the lowest position relative to the upper die of the die, and the upper die of the die and the lower die of the die are closed, a certain gap is formed between the clamping plate and the inner wall of the groove of the die. The utility model provides a finished piece resilience deformation's that fibre fold, fibre clearance and fibre direction internal stress lead to problem among the combined material mould pressing technology.
Description
Technical Field
The utility model relates to a combined material shaping technical field especially relates to a combined material forming die with adjustable clamping device.
Background
The mould pressing process is widely applied to the forming of continuous fiber composite materials. In the traditional process, continuous fiber fabric or prepreg is firstly paved on a mould according to a paving design, then an upper mould and a lower mould of the mould are closed by a press, and the continuous fiber composite material is molded under the action of pressure, temperature and time. Because continuous fiber fabrics or prepreg are required to be paved on the die, the die has long occupied time, large manual investment and low production efficiency, and large-scale rapid production is difficult to realize. With the increasing demand for composite materials in the automotive field, the competitiveness of the traditional molding process in terms of efficiency and cost is greatly weakened. The wet-process molding process effectively solves the problems of efficiency and cost of the traditional molding process.
The wet-process die pressing process is to directly place the cut whole multilayer continuous fiber fabric above the die, so that the process of paving and pasting the continuous fiber fabric on the die layer by layer is reduced, the efficiency is improved, and the cost is reduced. The whole multilayer continuous fiber fabric forms a shape matched with the cavity of the die under the action of huge pressure in the process of closing the upper die and the lower die. For relatively simple configurations, the conformability of the continuous fiber fabric effectively ensures the flatness of the fibers of the composite part. However, for relatively complex configurations, continuous fiber fabrics do not effectively spread with the mold surface, resulting in localized fiber accumulation, forming fiber wrinkles; also, due to insufficient fibers, fiber gaps are generated in the direction perpendicular to the fiber direction, or great tension is generated in the fiber direction, so that the composite material part after being formed is subjected to rebound deformation.
In order to solve the problem of rebound deformation of a workpiece caused by fiber folds, fiber gaps and internal stress in the fiber direction due to mismatching of the shape following property of a fiber fabric in a wet-process die pressing process, the invention provides the composite material forming die with the adjustable clamping device.
Disclosure of Invention
The utility model aims at the above problem, provide a combined material forming die with adjustable clamping device.
The utility model provides a composite material forming die with adjustable clamping devices, which comprises an upper die, a lower die and a plurality of adjustable clamping devices; the adjustable clamping devices are uniformly and tightly distributed on the periphery of the upper die of the die; the adjustable clamping device comprises a clamping plate and a fastener; the clamping plate can move up and down relative to the upper die of the die; the upper part of the clamping plate is provided with a strip-shaped through hole for limiting the vertical moving range of the clamping plate; the clamping plate is fixed on the upper die of the die by the fastener penetrating through the strip-shaped through hole; a mould groove matched with the clamping plate is formed in the corresponding position of the lower mould of the mould so that the lower part of the clamping plate can be inserted; when the clamping plate moves to the lowest position relative to the upper die of the die, and the upper die of the die and the lower die of the die are matched, a certain gap is formed between the clamping plate and the inner wall of the groove of the die.
According to the technical scheme provided by some embodiments of the application, the adjustable clamping device further comprises a group of gaskets with different thicknesses; the gasket is arranged between the upper part of the clamping plate and the upper die of the die.
According to the technical scheme provided by certain embodiments of the application, the thickness of the gasket is 1-5 cm.
According to the technical scheme provided by certain embodiments of the application, the width of the clamping plate is 2-3 cm.
According to the technical solution provided by some embodiments of the present application, the fastener is a bolt.
According to the technical scheme provided by some embodiments of the present application, the strip-shaped through holes are rectangular through holes.
According to the technical scheme provided by certain embodiments of the application, the composite material forming mold can be used for forming fiber fabrics or fiber fabric prepregs.
Compared with the prior art, the beneficial effect of this application:
(1) by arranging the adjustable clamping device and the die groove, the height position of a clamping plate of the adjustable clamping device relative to an upper die of the die is designed and adjusted according to the structure of a composite material workpiece when the die is used, the clamping tightening or free loosening state of composite material blanks in different areas at different times in the die assembly process can be effectively controlled, and therefore the problem of rebound deformation of the workpiece caused by fiber wrinkles, fiber gaps and fiber direction internal stress in the composite material die pressing process is effectively solved;
(2) in some embodiments of this application, through setting up the gasket that thickness is different from each other, the gasket of suitable thickness is chooseed for use to the accessible when using, adjusts the clearance between grip block and the mould recess inside wall behind the compound die to match the composite material blank of different thickness, thereby satisfy the production requirement of the composite material finished piece of different thickness.
Drawings
Fig. 1 is a schematic structural view of a composite material molding mold with an adjustable clamping device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an adjustable clamping device of a composite material molding mold having the adjustable clamping device according to an embodiment of the present invention.
The text labels in the figures are represented as:
1. an upper die of the die; 2. a lower die of the die; 3. a clamping plate; 4. a fastener; 5. a strip-shaped through hole; 6. a mold recess; 7. a gasket; 8. a composite blank.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Referring to fig. 1 and fig. 2, the present embodiment provides a composite material forming mold with an adjustable clamping device, which includes an upper mold 1, a lower mold 2, and a plurality of adjustable clamping devices; the adjustable clamping devices are uniformly distributed on the periphery of the upper die 1 of the die; the adjustable clamping device comprises a clamping plate 3 and a fastener 4; the clamping plate 3 can move up and down relative to the upper die 1 of the die; the upper part of the clamping plate 3 is provided with a strip-shaped through hole 5 for limiting the vertical moving range of the clamping plate 3; the clamping plate 3 is fixed on the upper die 1 of the die by a fastener 4 penetrating through the strip-shaped through hole 5; a mould groove 6 matched with the clamping plate 3 is formed in the corresponding position of the lower mould 2 of the mould for inserting the lower part of the clamping plate 3; the mold recess 6 is deep enough and wide enough to accommodate the composite material blank 8 when the clamping plate 3 is moved to the lowest position relative to the upper mold 1 and the lower mold 2 are closed, with a gap between the clamping plate 3 and the inner wall of the mold recess 6.
Furthermore, the adjustable clamping device also comprises a group of gaskets 7 with different thicknesses; the gasket 7 is arranged between the upper part of the clamping plate 3 and the upper die 1 of the die; the gap between the clamping plate 3 and the inner side wall of the die groove 6 after die assembly is adjusted by selecting the gaskets 7 with different thicknesses so as to match the composite material blanks 8 with different thicknesses, thereby meeting the production requirements of composite material parts with different thicknesses.
Further, the thickness of the gasket 7 is 1-5cm, when the gasket is used, the thickness of the gasket 7 needs to be selected according to the thickness of the composite material blank, and in the process of closing the upper die 1 and the lower die 2 of the die, the clamping plate 3 is matched with the groove 6 to clamp the composite material blank to form a certain tension force; with the further die assembly of the upper die 1 and the lower die 2, after the composite material blank contacts the die cavity surface, the composite material blank slides to the die cavity along the gap between the clamping plate 3 and the inner side wall of the die groove 6 under the action of the die assembly force, and then the composite material blank is attached to the die cavity surface. The thickness of the shim 7 corresponds to the thickness of the composite blank.
Further, the width of the holding plate 3 is 2-3 cm.
Further, the fastener 4 is a bolt.
Further, the strip-shaped through hole 5 is a rectangular through hole.
Furthermore, the composite material forming die can be used for forming fiber fabrics or fiber fabric prepreg, namely the composite material forming die can be used for not only a wet-process die pressing process, but also a traditional die pressing process.
When the composite material forming die with the adjustable clamping devices provided by the embodiment is used, (a) a proper gasket 7 is selected according to the thickness of a composite material blank 8, so that when the die is closed, the gap between the side wall of the die groove 6, which is far away from one side of the edge of the lower die 2 of the die, and the clamping plate 3 is slightly larger than the thickness of the composite material blank 8, the height position of the clamping plate 3 of each adjustable clamping device relative to the upper die 1 of the die is designed according to a planar development diagram of a composite material workpiece, the height position of each clamping plate 3 is adjusted one by one according to a design result, and a fastener 4 penetrates through the strip-shaped through hole 5 and the gasket 7 to be fixed on the side surface of the upper die 1; (b) placing the composite material blank 8 on the lower die 2 of the die, wherein the size of the composite material blank 8 is large enough when the composite material blank is cut, so that the composite material blank cannot be clamped in the groove 6 of the die by the clamping plate 3 when the die is closed due to too small size; (c) the upper die 1 and the lower die 2 of the die are matched, in the process of matching the die, the clamping plate 3 located at the lowest position is firstly contacted with the composite material blank 8 and is pushed into the die groove 6 to be clamped and tightened, because the depth of the die groove 6 is deep enough, the gap between the bottom end of the clamping plate 3 located at the lowest position and the inner side bottom wall of the die groove 6 is equivalent to the thickness of the composite material blank 8, the continuous matching of the die is not influenced, at the moment, the clamping plate 3 located at the relatively higher position is not contacted with the composite material blank 8, the composite material blank 8 is in a free and loose state, when the die cavity surfaces of the upper die 1 and the lower die 2 of the die are contacted with the composite material blank 8 along the matching process, the composite material blank 8 clamped and tightened by the clamping plate 3 keeps certain tension to avoid fiber wrinkles of relevant areas, at the moment, the composite material blank 8 not limited by the clamping plate 3 can move towards the center of the die along the inner direction of Moving and filling the corresponding area, avoiding the generation of internal stress in the fiber gap or the fiber direction, continuously closing the die, starting to contact the composite material blank 8 by the clamping plate 3 which is not in contact with the composite material blank 8 before, and pushing the clamping plate into the die groove 6 for clamping and tightening, thereby avoiding the fiber wrinkle caused by the continuous movement of the composite material blank 8 to the center of the die; along with the further compound die of mould upper die 1 and mould lower mould 2, under the further effect of compound die power, the combined material blank 8 that local centre gripping was tightened will slide to the mould die cavity along the clearance between grip block 3 and the mould recess 6 inside wall, until the compound die shaping finishes, combined material blank 8 laminates the mould die cavity face completely, and then effectively solves the problem that the finished piece that fibre fold, fibre clearance and fibre direction internal stress that the combined material mould pressing technology appears lead to kick-back the deformation.
It should be noted that, for an operator who uses the composite material forming mold with the adjustable clamping device for the first time, deviation may occur when the height position of each clamping plate 3 is calculated by design, which may cause a local fiber wrinkle, a fiber gap defect or a product rebound phenomenon caused by internal stress of the manufactured composite material product, at this time, the height position of the clamping plate 3 needs to be further adjusted according to the occurring problem, the above steps (a) to (c) are repeated, and experiments are repeated to achieve the purpose of effectively controlling the clamped tight or free loose state of composite material blanks in different areas at different times in the mold closing process of the mold, thereby effectively controlling the fiber wrinkle, the fiber gap defect or the product rebound caused by the internal stress of the composite material formed by the composite material molding process; when the clamping plate is formally used later, the height position of each clamping plate 3 is fixed, repeated experiments are not needed, and the clamping plate can be directly prepared. Compared with a fixed clamping device, the composite material forming die with the adjustable clamping device can flexibly adjust the height positions of the clamping plates in different areas, the defects of composite material parts can be controlled through experimental verification, the quality of the composite material parts is improved, the experimental verification process is convenient, waste of manpower, material resources and financial resources caused by die repairing is reduced, the cost is reduced, and the time period is shortened.
According to the composite material forming die with the adjustable clamping device, by arranging the adjustable clamping device and the die groove 6, the height position of the clamping plate 3 of the adjustable clamping device relative to the upper die 1 of the die is designed and adjusted according to the structure of a composite material workpiece when the die is used, the clamping tightening or free loosening state of composite material blanks 8 in different areas at different times in the die assembly process can be effectively controlled, and therefore the problem of rebound deformation of the workpiece caused by fiber wrinkles, fiber gaps and fiber direction internal stress when composite material fibers are formed by a composite material die pressing process is effectively solved; through setting up the gasket 7 that thickness is different from each other, the gasket 7 of suitable thickness is chooseed for use to the accessible when using, adjusts the clearance between grip block 3 and the 6 inside walls of mould groove behind the compound die to match the composite material blank 8 of different thickness, thereby satisfy the production requirement of the composite material finished piece of different thickness.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (7)
1. The composite material forming die with the adjustable clamping devices is characterized by comprising an upper die (1), a lower die (2) and a plurality of adjustable clamping devices; the adjustable clamping devices are uniformly and tightly distributed on the periphery of the upper die (1) of the die; the adjustable clamping device comprises a clamping plate (3) and a fastener (4); the clamping plate (3) can move up and down relative to the upper die (1) of the die; the upper part of the clamping plate (3) is provided with a strip-shaped through hole (5) for limiting the up-down moving range of the clamping plate (3); the clamping plate (3) is fixed on the upper die (1) of the die by the fastener (4) penetrating through the strip-shaped through hole (5); a mold groove (6) matched with the clamping plate (3) is formed in the corresponding position of the lower mold (2) of the mold, so that the lower part of the clamping plate (3) can be inserted; when the clamping plate (3) moves to the lowest position relative to the upper die (1) and the lower die (2) are closed, a certain gap is formed between the clamping plate (3) and the inner wall of the die groove (6).
2. The composite material moulding die with adjustable clamping device according to claim 1, characterized in that the adjustable clamping device further comprises a set of shims (7) of different thickness; the gasket (7) is arranged between the upper part of the clamping plate (3) and the upper die (1) of the die.
3. Composite material forming die with adjustable clamping device according to claim 2, characterized in that the thickness of the shim (7) is 1-5 cm.
4. The composite material moulding die with adjustable clamping device according to claim 1, characterized in that the width of the clamping plate (3) is 2-3 cm.
5. The composite material moulding die with adjustable clamping device according to claim 1, characterized in that the fastening elements (4) are bolts.
6. The composite material forming die with the adjustable clamping device as claimed in claim 1, characterized in that the strip-shaped through hole (5) is a rectangular through hole.
7. The composite material forming die with the adjustable clamping device as claimed in claim 1, wherein the composite material forming die can be used for forming fiber fabrics or fiber fabric prepregs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670619.4U CN212124251U (en) | 2020-04-28 | 2020-04-28 | Composite material forming die with adjustable clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020670619.4U CN212124251U (en) | 2020-04-28 | 2020-04-28 | Composite material forming die with adjustable clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212124251U true CN212124251U (en) | 2020-12-11 |
Family
ID=73690880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020670619.4U Active CN212124251U (en) | 2020-04-28 | 2020-04-28 | Composite material forming die with adjustable clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212124251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537051A (en) * | 2020-04-28 | 2021-03-23 | 廊坊市飞泽复合材料科技有限公司 | Composite material forming die with adjustable clamping device and forming method |
| CN113276435A (en) * | 2021-05-31 | 2021-08-20 | 济南大学 | Carbon-fibre composite hot-pressing sintering equipment can be regulated and control to structural gradient |
-
2020
- 2020-04-28 CN CN202020670619.4U patent/CN212124251U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537051A (en) * | 2020-04-28 | 2021-03-23 | 廊坊市飞泽复合材料科技有限公司 | Composite material forming die with adjustable clamping device and forming method |
| CN112537051B (en) * | 2020-04-28 | 2023-08-18 | 廊坊市飞泽复合材料科技有限公司 | Composite material forming die with adjustable clamping device and forming method |
| CN113276435A (en) * | 2021-05-31 | 2021-08-20 | 济南大学 | Carbon-fibre composite hot-pressing sintering equipment can be regulated and control to structural gradient |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212124251U (en) | Composite material forming die with adjustable clamping device | |
| CN104786491A (en) | Internal supercharging method for composite material multi-rib siding structure cementing forming technology | |
| CN103950210A (en) | Method for locating stringers of composite wallboard with curvature | |
| CN108688192B (en) | C-shaped beam composite material forming tool and composite material C-shaped beam forming method | |
| CN101804682B (en) | Secondary mould pressing in-mould decorating injection forming method | |
| CA2685481A1 (en) | Complex geometries made of composite material and forming process for same | |
| CN206406356U (en) | A kind of hardware plastic die holder | |
| CN111716761A (en) | Special-shaped curved surface aramid fiber paper honeycomb simple pre-setting die and manufacturing method thereof | |
| CN112537051A (en) | Composite material forming die with adjustable clamping device and forming method | |
| KR102045208B1 (en) | High speed blow molding method | |
| CN106077292B (en) | The sagging manufacturing process and shaping dies of a kind of abnormal-shaped section bar part | |
| CN205393336U (en) | A moulded die device for U type strip material | |
| CN109367076B (en) | Winding positioning tool for pre-impregnated glass roving belt | |
| CN210648049U (en) | Full-automatic adjustable size mould | |
| CN203600510U (en) | Mold for molding process of composite material plate spring | |
| CN210453443U (en) | Pressure forming die for producing foam composite board | |
| CN111451350A (en) | Water expansion forming device | |
| CN206343534U (en) | One kind is used for stamping forming mould | |
| CN205905411U (en) | Rectify frock that SMC goods warp | |
| CN217943966U (en) | Composite material forming die | |
| CN206277591U (en) | A kind of double-deck mould structure | |
| CN110815853A (en) | Forming method and application of air bag die for forming composite J-shaped beam | |
| CN214167759U (en) | Bottle-shaped glass demoulding clamp | |
| CN216226522U (en) | General base of titanium alloy angle bar thermoforming mould high temperature quick change | |
| CN210501017U (en) | Demoulding device for thermosetting plate production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |