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A Method for Positioning Long Stringers of Composite Wall Panels with Curvature

A long stringer and curvature technology, which is applied in the field of long stringer positioning of composite wall panels with curvature, can solve the problems of increased manufacturing cost, burst bags, card plate deformation, etc., and achieve the effect of improving positioning accuracy and ensuring molding quality.

Active Publication Date: 2016-04-20
中国航空工业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For composite wall panels with curvature, especially for composite wall panels with large curvature, the pallet frame structure is used to position the long trusses, and there are problems such as increased difficulty in manufacturing pallets, deformation of pallets, and increased manufacturing costs caused by multiple pallets. At the same time, , the use of the pallet frame structure to position the long stringer requires high technical requirements for vacuum bag making, otherwise it is very easy to burst the bag during the curing and pressurizing process

Method used

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  • A Method for Positioning Long Stringers of Composite Wall Panels with Curvature
  • A Method for Positioning Long Stringers of Composite Wall Panels with Curvature

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Experimental program
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Embodiment

[0021] The tooling of the present invention is a combined structure, mainly comprising skin forming tooling 8, four long stringer forming toolings 4, 5, 6, 7 and three long stringer positioning parts 1, 2, 3.

[0022] Skin forming tooling includes tooling frame and metal skin. There are ￠8 positioning holes on the metal skin for positioning the truss positioning parts.

[0023] Each truss positioning piece has 4 reference holes and 4 ￠5 holes for positioning truss forming tooling, and ￠4 bushings are embedded in the holes.

[0024] Each truss forming tooling is a combination mold, each containing two split mold bodies. The two parting bodies are positioned through ￠8 positioning holes and connected by ￠10 bolts. There are ￠4 positioning holes at both ends of one of the parting molds, which are coordinated with the positioning holes on the long truss positioning parts.

[0025] The skin forming tooling and long truss positioning parts are positioned through ￠8 positioning ho...

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Abstract

The invention belongs to a composite material molding technology, and relates to a method for locating stringers of a composite wallboard with the curvature. The method disclosed by the invention is used for solving the problem of location of the composite wallboard with the curvature during the molding process of the stringers in a manner of locating a stringer molding tool by adopting a combined tool structure, so that the problems of difficult manufacturing, deformation and location of a plurality of clamping plates and the like can be avoided; in addition, by adopting the tool structure mode, the invention provides a locating method of interlaced short and long stringers of the composite wallboard during the molding process, and thus the location precision of the stringers is improved, and the molding quality of the stringers is guaranteed.

Description

technical field [0001] The invention belongs to composite material forming technology, and relates to a method for positioning long trusses of composite wall panels with curvature. Background technique [0002] At present, the molding of composite material ribbed panels mostly adopts the clamping frame structure to position the long stringers on the molding die. For composite wall panels with curvature, especially for composite wall panels with large curvature, the pallet frame structure is used to position the long trusses, which has problems such as increased difficulty in manufacturing pallets, deformation of pallets, and increased manufacturing costs caused by multiple pallets. At the same time , the use of the pallet frame structure to locate the long stringer requires high technical requirements for vacuum bag making, otherwise it is very easy to burst the bag during the curing and pressurizing process. Contents of the invention [0003] The object of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/44B29C70/54
CPCB29C70/443B29C70/54
Inventor 刘强王龙王庆有魏艳丽成景马向群董航
Owner 中国航空工业集团有限公司