Mold of resin base complex material inner gridding skeletal rod structure and shaping method thereof

Abstract

The invention discloses a mold and a component forming method of a resin-based composite material internal grid reinforcement structure, which relates to a mold of a fiber composite material component and a forming method of the component. It solves the problems of low precision, low production efficiency, high cost, poor apparent quality and difficult demoulding in the existing forming method. In the present invention, an inner grid reinforcement member of a resin-based composite material is surrounded by an inner mold (1), a split mold (2), a left flange (3), a right flange (4) and an outer mold (5). The cavity (6), the outer surface of the split mold (2) has a plurality of grooves (7), the split mold (2) and the inner mold (1) are positioned by positioning pins (8), and are connected by bolts and inner molds. Die 1 is firmly connected. The method is as follows: 1. Designing a mould; 2. Winding or laying convex ribs in the cavity; 3. Winding or laying continuous fibers impregnated with resin base in the cavity (6); 4. Forming. The invention has the advantages of high product precision, high production efficiency, reduced production cost, good apparent quality of components, easy demoulding and the like.

Description

technical field [0001] The invention relates to a mold for manufacturing a resin-based composite material internal grid reinforcement structure and a forming method of the component. Background technique [0002] A fiber-reinforced resin-based composite member with an inner grid or a composite member with a structure similar to it, which has excellent performance and is mainly used in aerospace and other fields. This structure is very different from ordinary cylindrical shell members. On the one hand, there are inwardly protruding grid ribs on the inner surface of the cylindrical shell, so it has excellent performance of high load; on the other hand, due to the The protruding grid ribs make the forming process relatively complicated, especially for the design of the forming mold, which puts forward high technical requirements, not only requiring the surface of the mold to have prefabricated grooves, but also to be able to achieve smooth demoulding. At present, the forming m...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of low molding precision, low production efficiency, high cost, difficult demoulding, relatively complicated process, and poor apparent quality of the formed component in the existing fiber-reinforced resin-based composite material. , providing a mold and component forming method for a resin-based composite inner grid-reinforced structural part. The specific technical solution for solving the above-mentioned problems is as follows:

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