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A laying device suitable for z-shaped composite fuselage blanks

A composite material and laying technology is applied in the field of laying devices of composite material Z-shaped fuselage bulkhead blanks, which can solve the problems of poor quality consistency and low laying efficiency.

Active Publication Date: 2020-10-20
AVIC COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problems of low stacking efficiency and poor quality consistency caused by manual stacking of Z-shaped partitions

Method used

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  • A laying device suitable for z-shaped composite fuselage blanks
  • A laying device suitable for z-shaped composite fuselage blanks
  • A laying device suitable for z-shaped composite fuselage blanks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] In the embodiment, using image 3 M21C prepreg (single-layer thickness 0.19mm, width 150mm, remove the separator paper and separator of the prepreg sheet), turn on the vacuum adsorption function of the laying device, absorb the prepreg sheet, and the manipulator Drive the laying device to position the material, and the positioning and compacting mechanism will compact the material on the flange of the mold, the forward pushing mechanism will move forward, and the roller group will compact the material at the outer R. The compaction process here It is necessary for the vacuum chamber to maintain a vacuum adsorption state all the time to ensure that the sheet is under tension, which is beneficial to increase the degree of compaction at the R angle. The forward pushing mechanism continues to move forward, presses the sheet into a Z shape, and compacts the sheet at the inner R. After compaction, the forward pushing mechanism retreats, and the laying action is completed. Th...

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Abstract

The invention relates to the technical field of composite material molding, and relates to a laying device for a Z-shaped composite material fuselage bulkhead blank. The laying device includes a push-forward mechanism, a positioning the compaction mechanism and a mounting base. The push-forward mechanism includes a vacuum adsorption cavity with micropores, and a roller set which is arranged belowthe vacuum cavity, the roller set and the vacuum cavity form an integral push-forward mechanism. A cylinder block is installed on the mounting base, and is connected with the integral push-forward mechanism through a piston rod of a cylinder. The roller set is composed of rubber soft rollers. The front end of the roller positioning and compaction mechanism is a rubber soft belt which is bonded with an equal-width metal plate as a whole. The positioning and compaction mechanism is connected with the piston rod of another cylinder of the mounting base. The invention realizes the change of the prepreg sheet from the "I" shape to the "Z" shape through the processes of adsorption, positioning, rolling, etc. of the prepreg sheet. At the corner of R, rubber soft rollers are used to realize the compaction of the material sheet, which solves the problems of low efficiency, poor quality and low precision of the existing manual stacking molding.

Description

technical field [0001] The invention relates to the technical field of composite material forming, in particular to a laying device for composite material Z-shaped bulkhead blanks. Background technique [0002] With the advancement of composite material forming technology, the application of composite materials is becoming more and more widespread, and the amount of composite materials is increasing. In addition to fuselage panels, a large number of advanced composite materials are used in wide-body passenger aircraft, and a large number of composite materials are also used in fuselage frames, especially Z Square bulkheads are widely used in the manufacturing process of wide-body airliners. The molding method of existing domestic composite material Z-shaped bulkhead is to adopt manual method to lay layer by layer on the mould, and finally enter the autoclave to solidify. [0003] The deficiencies brought about by laying the bulkhead blanks by manual laying are: 1. Low layin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/38B29C70/54B29L31/30
CPCB29C70/386B29C70/54B29L2031/3082
Inventor 郑广强姚锋梁宪珠
Owner AVIC COMPOSITES
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