CN219902946U - Winding forming die for inner ribbed composite material cylinder - Google Patents
Winding forming die for inner ribbed composite material cylinder Download PDFInfo
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- CN219902946U CN219902946U CN202321433446.4U CN202321433446U CN219902946U CN 219902946 U CN219902946 U CN 219902946U CN 202321433446 U CN202321433446 U CN 202321433446U CN 219902946 U CN219902946 U CN 219902946U
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- forming die
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- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000004804 winding Methods 0.000 title claims abstract description 27
- 239000008188 pellet Substances 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a winding and forming die for an inner ribbed composite material cylinder, which comprises the following components: an end shaft; a main body mold installed between the pair of end shafts, the outer surface of the main body mold having a plurality of different diameters and being arranged in order of diameters from large to small, wherein an end of the main body mold having the largest diameter of the outer surface is defined as a large end, and an end of the main body mold having the smallest diameter of the outer surface is defined as a small end; a plurality of core block components which are arranged on the outer surface of the main body die and matched with the outer surface of the main body die, wherein the outer surfaces of the core block components form a molded surface matched with the inner surface of the inner ribbed composite material cylinder; end flanges mounted at both ends of the body mold for axially positioning the pellet assembly; one end is connected with the end shaft, and the other end is connected with the end flange. The utility model is suitable for winding and forming the inner ribbed composite material cylinder body, and has the characteristics of low manufacturing cost, high forming dimensional precision, convenience in demoulding and the like.
Description
Technical Field
The utility model belongs to the technical field of composite material forming, and particularly relates to a winding forming die for an inner ribbed composite material cylinder.
Background
The composite material has light weight, high specific strength, specific modulus, excellent fatigue resistance, environmental resistance and excellent vibration reduction and impact resistance, and is widely applied to the aerospace field.
However, the large-scale complex cylinder, especially the cylinder with ribs inside, has the defects of higher development cost, higher molding difficulty, bottom molding dimensional precision, difficult demoulding and the like, and the manufactured product has the defects of layering, wrinkling and the like easily, so that the product percent of pass is low.
However, the winding forming process is suitable for manufacturing hollow and round workpieces, has the advantages of high production speed, minimized fiber cost, excellent structural performance and the like, and is suitable for forming ribbed cylinder products.
For the above reasons, the winding and forming die for the inner ribbed composite cylinder is designed.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the winding forming die for the inner ribbed composite material cylinder, which is suitable for winding forming of the inner ribbed composite material cylinder and has the characteristics of low manufacturing cost, high forming dimensional precision, convenience in demoulding and the like.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an interior ribbed composite barrel winding forming die comprising: an end shaft; a main body mold installed between the pair of end shafts, the outer surface of the main body mold having a plurality of different diameters and being arranged in order of diameters from large to small, wherein an end of the main body mold having the largest diameter of the outer surface is defined as a large end, and an end of the main body mold having the smallest diameter of the outer surface is defined as a small end; a plurality of core block components which are arranged on the outer surface of the main body die and matched with the outer surface of the main body die, wherein the outer surfaces of the core block components form a molded surface matched with the inner surface of the inner ribbed composite material cylinder; end flanges mounted at both ends of the body mold for axially positioning the pellet assembly; one end is connected with the end shaft, and the other end is connected with the end flange.
Further, each of the pellet assemblies includes a plurality of individual pellets, and at least one of the individual pellets in each of the pellet assemblies is provided with a draft angle.
Further, threaded holes are formed in the single core blocks.
Further, the draft angle is not more than 10 °.
Further, a plurality of T-shaped positioning strips are arranged on the outer surface of the main body die along the axial direction of the main body die, and each single core block is arranged between two adjacent T-shaped positioning strips.
Further, grooves are formed in the outer surface of the core block assembly and/or between two adjacent core block assemblies, and the grooves are matched with reinforcing ribs on the inner surface of the inner ribbed composite material cylinder.
Further, the main body mold is of a hollow structure.
Further, a plurality of filling blocks are respectively arranged between the large end of the main body die and the end shaft and between the small end of the main body die and the end shaft.
Further, the seal head is mounted on the end shaft through a round nut.
Compared with the prior art, the utility model has the beneficial effects that: the main body die is arranged between a pair of end shafts, the outer surface of the main body die is provided with a plurality of different diameters, the main body die is arranged in sequence from large to small in diameter, one end with the largest diameter is defined as a large end, and the end with the smallest diameter is defined as a small end; the core block components are arranged on the outer surface of the main body die and are matched with the inner surface of the main body die in profile, and the outer surface of each core block component forms a profile matched with the inner surface of the inner ribbed composite material cylinder; the end flanges are arranged at two ends of the main body die and are used for axially positioning the core block assembly; one end of the end socket is connected with the end shaft, and the other end of the end socket is connected with the end flange, so that the winding forming die for the inner ribbed composite material cylinder is formed, and the die has the characteristics of low manufacturing cost, high forming dimensional precision, convenience in demoulding and the like.
Drawings
FIG. 1 is a schematic view of an internal ribbed composite cylinder made using an internal ribbed composite cylinder winding forming die provided by an embodiment of the present utility model;
FIG. 2 is an isometric view of a winding forming die for an internal ribbed composite cylinder provided by an embodiment of the present utility model;
FIG. 3 is a schematic view of FIG. 2 with the closure head and pellet assembly hidden;
FIG. 4 is a longitudinal cross-sectional view of FIG. 2;
FIG. 5 is an elevation view of a pellet assembly in an embodiment of the utility model;
FIG. 6 is a schematic diagram of a core block assembly with an assembly in an embodiment of the utility model;
in the figure: 1. an end shaft; 2. a round nut; 3. a seal head; 4. an end flange; 5. a core block section A; 6. a core block B section; 7. a core block C section; 8. a core block D section; 9. a core block E section; 10. a main body mold; 11. t-shaped positioning strips; 12. filling the flat block; 13. a composite material cylinder with ribs inside; 14. reinforcing ribs; 15. and the inner part is big and the outer part is small.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
As shown in fig. 1 to 6, a winding forming die for an inner ribbed composite material cylinder is suitable for manufacturing and forming an inner ribbed composite material cylinder 13 with reinforcing ribs 14; comprising the following steps: the end shaft 1, the round nut 2, the end socket 3, the end flange 4, a core block assembly, a main body die 10, a T-shaped positioning strip 11, a filling block 12, other finished products, standard components and the like, wherein the core block assembly comprises a core block A section 5, a core block B section 6, a core block C section 7, a core block D section 8 and a core block E section 9, and each core block is divided into 8 single core blocks.
The body mold 10 is of a hollow structure, is installed between a pair of end shafts 1, and has a plurality of different diameters on the outer surface thereof, and is arranged in order of the diameters from the largest end of the outer surface of the body mold 10 defined as the large end, and the end of the outer surface of the body mold 10 having the smallest diameter defined as the small end.
The core block component is arranged on the outer surface of the main body die 10 and matched with the outer surface of the main body die 10, and the outer surface of the core block component forms a molded surface matched with the inner surface of the inner ribbed composite material cylinder; in this embodiment, the core block a section 5 in the core block assembly is installed at the large end of the main body mold 10, the core block E section 9 is installed at the small end of the main body mold 10, and the outer diameters of the core block a section 5, the core block B section 6, the core block C section 7, the core block D section 8 and the core block E section 9 are the same, and the inner diameters are sequentially reduced and correspondingly matched with the outer surface diameters of the main body mold 10.
End flanges 4 are mounted at both ends of the body die 10 for axially positioning the pellet assembly.
One end of the sealing head 3 is connected with the end shaft 1, and the other end is connected with the end flange 4.
Grooves are formed in the outer surface of the core block assembly and/or between two adjacent core block assemblies, and the grooves are matched with reinforcing ribs on the inner surface of the inner ribbed composite material cylinder.
When the die is assembled, the main body die 10 is firstly placed on a bracket, then filling blocks 12 (the filling blocks 12 are respectively arranged between the big end of the main body die 10 and the end shaft 1 and between the small end of the main body die 10 and the end shaft 1) are arranged at two ends of the main body die 10 so as to ensure that the main body die 10 can smoothly rotate on the bracket, and then 4T-shaped positioning strips 11 are arranged; then installing the core block assembly, firstly installing single core blocks at the T-shaped positioning strips 11 along the radial direction, then sequentially installing other single core blocks in a clockwise or anticlockwise sequence, and sequentially installing five sections of a core block A section 5, a core block B section 6, a core block C section 7, a core block D section 8 and a core block E section 9 on the main body die 10 from a large end to a small end along the axial direction. After the core block assembly is installed, the end flange 4, the end shaft 1 and the end socket 3 are installed and fixed by the round nut 2.
During molding, the mold is mounted on a winding machine, the ribs comprise skins, two ends are wound by a wet method, the opening bosses are paved and stuck by prepreg, and the bags are pressed and molded.
And (3) demolding a product: the die is placed on the bracket, the two end sockets 3 and the end shaft 1 are removed, then the main body die 10 is connected with the pipe supporting machine, the main body die 10 is separated from the core block assembly along the direction from the small end to the large end (the main body die 10 has partial clearance, so that the core block assembly is convenient to demould), and the core block assembly and the workpiece are stuck together at the moment, as shown in fig. 6. During demolding, one single core block (the inner large and outer small single core blocks 15) with the drawing angles is selected, the single core blocks are taken out from the nearer port for demolding after radial loosening by using the threaded holes on the single core blocks, and after the single core blocks are taken off, other surrounding single core blocks are sequentially demolded, and the operations are repeated layer by layer to finish demolding.
In the embodiment, the core block assembly is divided into eight blocks in the radial direction, wherein four blocks are provided with 10-degree demoulding angles, so that demoulding is facilitated; the axial direction is divided into five sections, namely a core block A section 5, a core block B section 6, a core block C section 7, a core block D section 8 and a core block E section 9, and each section is in the middle section of a part rib, so that the part rib is prevented from being extruded when the die expands with heat and contracts with cold, and the part is damaged.
In the embodiment, the core block assembly utilizes the T-shaped positioning strips 11 and the flanges 4 at the two ends to position and position the surfaces of the core block assembly, so that after the assembly is completed, the surfaces are tightly attached to each other, the die assembly seam is minimized as much as possible, and the dimensional accuracy and the contour degree of the workpiece are ensured.
In this embodiment, the main body mold 10 is designed to be stepped, the layer-by-layer diameter is reduced, and part of the space is kept away, so that the pellet assembly is easy to be demolded. The middle part of the main body mould 10 is designed to be kept away from the air, so that the main body mould 10 can be conveniently demoulded.
In the embodiment, the winding and forming die of the inner ribbed composite material cylinder meets the forming requirement of similar products of the inner ribbed cylinder. The core block assembly is subjected to blocking treatment in the radial direction and the axial direction, so that the installation is convenient, and the profile degree and the dimensional accuracy requirements of a product are ensured while the demolding is simple. The core block assembly utilizes the T-shaped positioning strip, the flange positioning at the two ends and the self-surface positioning, does not need standard components of bolts and pins, and is simple and convenient to assemble and disassemble. The application of the winding forming die for the inner ribbed composite material cylinder body has low requirement on the operation level of operators, is simple and convenient to operate, and greatly reduces the labor intensity of the operators. The internal ribbed composite material cylinder winding forming die uses machining parts, standard parts and the like with simple configuration, and has the advantages of simple and compact overall structure, convenient installation and maintenance, low manufacturing cost and reliable work. The positioning and forming die for the variable-section composite reinforced wallboard has general use requirements in the process of forming composite products of the reinforced wallboard.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (9)
1. An inside ribbed composite barrel winding forming die, characterized in that includes:
an end shaft (1);
a main body die (10) installed between a pair of end shafts (1), the outer surface of the main body die (10) having a plurality of different diameters and being arranged in order of the diameters from large to small, wherein an end of the main body die (10) having the largest outer surface diameter is defined as a large end, and an end of the main body die (10) having the smallest outer surface diameter is defined as a small end;
a plurality of core block components which are arranged on the outer surface of the main body mould (10) and matched with the outer surface of the main body mould (10), wherein the outer surfaces of the core block components form a molded surface matched with the inner surface of the inner ribbed composite material cylinder;
end flanges (4) mounted at both ends of the body mold (10) for axially positioning the pellet assembly;
one end is connected with the end shaft (1), and the other end is connected with the end flange (4).
2. The internal ribbed composite can winding forming die of claim 1 wherein each of said pellet assemblies includes a plurality of individual pellets, and at least one of said individual pellets in each of said pellet assemblies is provided with a draft angle.
3. The internal ribbed composite cylinder winding forming die of claim 2 wherein said unitary pellets are provided with threaded holes.
4. The interior ribbed composite can winding forming die of claim 2 wherein the draft angle is no more than 10 °.
5. The winding and forming die for the inner ribbed composite cylinder according to claim 2, characterized in that a plurality of T-shaped positioning strips (11) are installed on the outer surface of the main body die (10) along the axial direction of the main body die (10), and each single core block is installed between two adjacent T-shaped positioning strips (11).
6. The internal ribbed composite can winding forming die of claim 2 wherein a groove is provided between the outer surface of the pellet assembly and/or adjacent two of the pellet assemblies, the groove matching the ribs of the inner surface of the internal ribbed composite can.
7. The internal ribbed composite cylinder winding forming die of claim 1, wherein said body die (10) is hollow.
8. The winding and forming die for the inner ribbed composite cylinder according to claim 1, characterized in that a plurality of filling blocks (12) are respectively arranged between the big end of the main body die (10) and the end shaft (1) and between the small end of the main body die (10) and the end shaft (1).
9. The winding and forming die of the inner ribbed composite cylinder according to claim 1, characterized in that said head (3) is mounted on said end shaft (1) by means of a round nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433446.4U CN219902946U (en) | 2023-06-07 | 2023-06-07 | Winding forming die for inner ribbed composite material cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433446.4U CN219902946U (en) | 2023-06-07 | 2023-06-07 | Winding forming die for inner ribbed composite material cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN219902946U true CN219902946U (en) | 2023-10-27 |
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ID=88423188
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321433446.4U Active CN219902946U (en) | 2023-06-07 | 2023-06-07 | Winding forming die for inner ribbed composite material cylinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN219902946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119282027A (en) * | 2024-09-12 | 2025-01-10 | 湖北三江航天江北机械工程有限公司 | Anti-shrinkage structure long-size sand core mold and sand cake forming method |
| CN119928126A (en) * | 2025-03-27 | 2025-05-06 | 哈尔滨玻璃钢研究院有限公司 | A winding die for a composite material cylinder with internal reinforcement ribs and a method of using the same |
| DE102023134841A1 (en) * | 2023-12-12 | 2025-06-12 | Rolls-Royce Deutschland Ltd & Co Kg | Method for producing at least one sleeve for encasing permanent magnets of a rotor of an electrical machine, sleeve for encasing permanent magnets of a rotor of an electrical machine and a winding core for producing a sleeve |
-
2023
- 2023-06-07 CN CN202321433446.4U patent/CN219902946U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023134841A1 (en) * | 2023-12-12 | 2025-06-12 | Rolls-Royce Deutschland Ltd & Co Kg | Method for producing at least one sleeve for encasing permanent magnets of a rotor of an electrical machine, sleeve for encasing permanent magnets of a rotor of an electrical machine and a winding core for producing a sleeve |
| CN119282027A (en) * | 2024-09-12 | 2025-01-10 | 湖北三江航天江北机械工程有限公司 | Anti-shrinkage structure long-size sand core mold and sand cake forming method |
| CN119928126A (en) * | 2025-03-27 | 2025-05-06 | 哈尔滨玻璃钢研究院有限公司 | A winding die for a composite material cylinder with internal reinforcement ribs and a method of using the same |
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