CN-121973480-A - Flange forming device and flange forming method

CN121973480ACN 121973480 ACN121973480 ACN 121973480ACN-121973480-A

Abstract

The application discloses a flange forming device and a flange forming method, and belongs to the technical field of composite material forming. The flange forming device comprises a positioning tool, wherein a positioning cavity is formed in the positioning tool and used for installing flange packing. The flange forming device further comprises a forming core mould, wherein the forming core mould is used for installing pipeline parts. The positioning tool is configured to be connected with the forming core die, and the relative position between the flange packing and the pipeline part is fixed by fixing the relative position between the positioning cavity and the forming core die when the flange packing is applied to the pipeline part. Through the mode, the flange packing and the pipeline part positioning device are beneficial to improving the precision of the relative position between the flange packing and the pipeline part and reducing the risk of deviation of the flange packing.

Inventors

CHEN SHUNQIANG
LIU NA
SU ZHENYU
SONG SHUANG

Assignees

上海航空发动机复合材料有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260330

Claims (13)

1. A flange forming apparatus, comprising: The positioning tool is internally provided with a positioning cavity used for installing flange packing, and The positioning tool is configured to be connected with the forming core die, and the relative position between the flange packing and the pipeline part is fixed by fixing the relative position between the positioning cavity and the forming core die when the flange packing is applied to the pipeline part.
2. The flange forming apparatus of claim 1, wherein the flange packing includes a first sub-packing and a second sub-packing, and the positioning fixture includes: a first positioning piece, wherein a first sub-positioning cavity is arranged in the first positioning piece and used for mounting the first sub-filling material, and The second positioning piece is internally provided with a second sub-positioning cavity, and the second sub-positioning cavity is used for mounting the second sub-filler; the first positioning piece and the second positioning piece are configured to be arranged oppositely, so that the first sub-positioning cavity and the second sub-positioning cavity are in butt joint to form the positioning cavity, and the first sub-packing and the second sub-packing are in butt joint to form the flange packing.
3. The flange forming apparatus of claim 2, wherein the positioning fixture comprises: a first fastener for connecting the first positioning member and the second positioning member to the molding core mold, and The second fastener is used for fixedly connecting the first locating piece and the second locating piece, so that the first locating piece compresses the first sub-packing to the pipeline part and the second locating piece compresses the second sub-packing to the pipeline part.
4. The flange molding apparatus of claim 1, wherein the flange molding apparatus further comprises: The forming tool is characterized in that a forming cavity is formed in the forming tool and used for pre-forming the flange packing.
5. The flange forming apparatus of claim 4, wherein the flange packing includes a first sub-packing and a second sub-packing, the forming tool including: A first molding member having a first sub-molding cavity therein for pre-molding the first sub-filler, and The first molding piece and the second molding piece are configured to be arranged oppositely, so that the first sub-molding cavity and the second sub-molding cavity are in butt joint to form the molding cavity.
6. The flange molding apparatus of claim 5, wherein the molding tooling further comprises: the positioning assembly is used for fixedly connecting the first forming piece and the second forming piece, so that the first sub-forming cavity and the second sub-forming cavity are in butt joint to form the forming cavity.
7. The flange molding apparatus of claim 4, wherein the molding tooling further comprises: And the pressing piece is configured to be matched with the forming tool and used for compacting the prepreg in the forming cavity so as to form the flange packing.
8. A flange forming method, characterized in that the flange forming method is based on the flange forming apparatus according to any one of claims 1 to 7, the flange forming method comprising: filling flange filler into a positioning cavity in a positioning tool of the flange forming device; connecting the positioning tool with a forming core mould of the flange forming device; and applying the flange packing to a pipeline part arranged on the forming core mold.
9. The flange molding method according to claim 8, wherein the step of applying the flange packing to the pipe fitting mounted on the molding die comprises: and heating the position, corresponding to the flange filler, on the positioning tool so that the flange filler is attached to the pipeline part.
10. The flange molding method according to claim 8, wherein the flange molding device further comprises a molding tool, and a molding cavity is formed inside the molding tool; The step of filling the flange packing into the positioning cavity in the positioning tool of the flange forming device comprises the following steps: Filling prepreg in the molding cavity; The prepreg is subjected to a compaction process to form the flange filler.
11. The flange molding method of claim 10, wherein the molding tooling comprises a first molding member having a first sub-molding cavity therein, a second molding member having a second sub-molding cavity therein, and a positioning assembly; the step of filling the prepreg in the molding cavity comprises the following steps: Filling the prepreg in the first sub-molding cavity and the second sub-molding cavity; The step of compacting the prepreg to form the flange filler comprises: Compacting the prepregs in the first sub-forming cavity and the second sub-forming cavity to form a first sub-filler in the first sub-forming cavity and a second sub-filler in the second sub-forming cavity; and the first forming piece and the second forming piece are fixedly connected through the positioning assembly, so that the first sub-packing and the second sub-packing are in butt joint to form the flange packing.
12. A flange forming method according to claim 11, wherein, The step of fixedly connecting the first molding piece and the second molding piece through the positioning assembly so as to enable the first sub-filler and the second sub-filler to be in butt joint to form the flange filler comprises the following steps: And removing the filling overflowed from the joint positions of the first molding piece and the second molding piece.
13. A flange forming method according to claim 11, wherein, The step of compacting the prepreg in the first sub-molding cavity and the second sub-molding cavity comprises: carrying out vacuum compaction treatment on the prepreg in the first sub-molding cavity and the second sub-molding cavity; And compacting the prepregs in the first sub-molding cavity and the second sub-molding cavity in an autoclave.

Description

Flange forming device and flange forming method Technical Field The application relates to the technical field of composite material forming, in particular to a flange forming device and a flange forming method. Background In the field of composite material forming, pipeline parts are often used as connecting pieces, and flanges are required to be arranged at pipe orifice positions to realize assembly connection with other parts. For pipeline parts using composite materials, the circular flange forming process on the pipeline parts is usually to place flange packing at a preset position of a pipe orifice when a pipeline main body is formed, and then cover and fix the flange packing by paving a new layer. At present, the position of the flange filler is usually projected to the surface of a part by a laser projector, and an operator manually lays and positions the flange filler according to projection lines. However, the manual placement of the operators is highly dependent on the experience of the operators. The flange filler is easy to shift in the laying process, and the relative position precision between the flange filler and the pipeline part is difficult to ensure, so that the connection precision and reliability of the flange and other parts during assembly are affected. Disclosure of Invention The embodiment of the application provides a flange forming device and a flange forming method, which are beneficial to improving the precision of the relative position between flange filler and pipeline parts and reducing the risk of deviation of the flange filler. In order to achieve the above object, according to a first aspect of the present application, there is provided a flange molding apparatus. The flange forming device comprises a positioning tool, wherein a positioning cavity is formed in the positioning tool and used for installing flange packing. The flange forming device further comprises a forming core mould, wherein the forming core mould is used for installing pipeline parts. The positioning tool is configured to be connected with the forming core die, and the relative position between the flange packing and the pipeline part is fixed by fixing the relative position between the positioning cavity and the forming core die when the flange packing is applied to the pipeline part. The flange packing comprises a first sub packing and a second sub packing, the positioning tool comprises a first positioning piece, a second positioning piece and a first positioning piece, a first sub positioning cavity is formed in the first positioning piece, the first sub positioning cavity is used for mounting the first sub packing, a second positioning piece is formed in the second positioning piece, a second sub positioning cavity is used for mounting the second sub packing, the first positioning piece and the second positioning piece are arranged oppositely, so that the first sub positioning cavity and the second sub positioning cavity are in butt joint to form a positioning cavity, and the first sub packing and the second sub packing are in butt joint to form the flange packing. Optionally, the positioning tool comprises a first fastener and a second fastener, wherein the first fastener is used for connecting the first positioning piece and the second positioning piece to the forming core mold, and the second fastener is used for fixedly connecting the first positioning piece and the second positioning piece, so that the first positioning piece compresses the first sub-filler on the pipeline part and the second positioning piece compresses the second sub-filler on the pipeline part. Optionally, the flange forming device further comprises a forming tool, wherein a forming cavity is formed in the forming tool and used for pre-forming the flange filler. The flange packing comprises a first sub-packing and a second sub-packing, the forming tool comprises a first forming piece, a second forming piece and a first forming piece, a first sub-forming cavity is formed in the first forming piece, the first sub-forming cavity is used for pre-forming the first sub-packing, the second forming piece is formed in the second forming piece, the second sub-forming cavity is used for pre-forming the second sub-packing, and the first forming piece and the second forming piece are arranged oppositely, so that the first sub-forming cavity and the second sub-forming cavity are in butt joint to form a forming cavity. Optionally, the forming tool further comprises a positioning assembly, wherein the first forming piece and the second forming piece are fixedly connected through the positioning assembly, so that the first sub-forming cavity and the second sub-forming cavity are in butt joint to form a forming cavity. Optionally, the forming tool further comprises a tabletting configured to cooperate with the forming tool for compacting the prepreg in the forming cavity to form the flange packing. According to a second aspect of the presen