Composite material large wing surface I-shaped stringer wallboard forming tool

A technology of composite materials and long trusses, which is applied in the field of forming tooling structures for large-scale airfoil I-shaped long truss panels made of composite materials, and can solve the problems of low accuracy of shape contour and large deviation of long truss axis positions, etc.

Inactive Publication Date: 2020-11-20
SHENYANG AIRCRAFT CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of low outline precision of parts of large airfoil I-shaped long truss panels and large position deviation of long truss axes, etc., and provides a set of tooling structure to divide the manufacture of large airfoil I-shaped long truss panels into several parts. The first step: laying up the long stringers and wall panels separately; forming a set of soft film forming molds to ensure the accuracy of the surface profile of the wall panels; using a set of long stringer positioning structures to ensure accurate positioning of the long stringers in the combined state. The position of the middle truss does not shift

Method used

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  • Composite material large wing surface I-shaped stringer wallboard forming tool
  • Composite material large wing surface I-shaped stringer wallboard forming tool
  • Composite material large wing surface I-shaped stringer wallboard forming tool

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Embodiment Construction

[0020] The present invention uses three sets of relatively independent tooling to complete the molding of the parts. A set of long stringer laying and forming molds 2 are used to lay up the long stringer. Since the length of the long stringer is long, the stringer is divided into segments, each segment is connected by a side plate 2-1. The forming surface of the cover plate molding die and the long stringer pre-compaction die 3 is the outer surface of the wall panel parts, and the soft film molding of composite parts can be directly completed on it. When forming the soft film, the position of the long stringer and its tooling is directly reserved. The forming temperature of the composite soft film is relatively low, so the material of the tooling is ordinary steel. The cover plate molding die and stringer pre-compacting die 3 are also used for pre-compacting the I-shaped stringer. The stacked stringer parts and tooling are placed at the position of the stringer spacer 3-1, and...

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Abstract

The invention discloses a composite material large wing surface I-shaped stringer wallboard forming tool, and belongs to the field of composite material wallboard and I-shaped stringer forming. The tool comprises a stringer laying and forming die, a cover plate forming die, a stringer pre-compaction die and a wallboard forming die. According to the tool structure form, manufacturing of the large wing surface I-shaped stringer wallboard is divided into the following steps that stringers and wallboards are separately laid; a set of soft film forming die is formed and used for ensuring the contour precision of the wallboards; and a group of stringer positioning structures is used, so that the stringers are accurately positioned in a combined state, and the positions of the stringers are not deviated in a curing process.

Description

technical field [0001] The invention belongs to the forming tooling structure of the I-shaped long truss wall plate of the composite material large-scale airfoil, and is suitable for co-curing, bonding curing, and secondary bonding of the composite material wall plate and the I-shaped long truss, and ensures the combination and curing of the wall plate and the long truss The position does not shift during the process, the manufacturing quality of the parts is stable, and the operation is repeatable. Background technique [0002] Most of the long truss structures in the composite wall panel parts are I-shaped, T-shaped, L-shaped, etc. The positioning of the long trusses of several structures is easier if the size of the siding is small, and the positioning accuracy of the long truss axis is higher. If the size of the wall plate is large, it is difficult to locate the girder and the axis accuracy of positioning the girder is low, which will affect the assembly of the wall plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/30B29C70/34
CPCB29C33/301B29C70/34B29L2031/001
Inventor 石群黄炎程妍
Owner SHENYANG AIRCRAFT CORP
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