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Large deformation flexible compression device for automatic fiber placement

A technology of pressing device and automatic wire laying, which is applied in the field of fiber laying, can solve the problems of inability to compact the fiber tape and high hardness, and achieve the effects of easy control of pressing force, improvement of molding quality, and improvement of adaptability.

Active Publication Date: 2019-10-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when laying large-curvature negative surface structures, the traditional pressure rollers cannot completely compact the fiber tape due to their high hardness.

Method used

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  • Large deformation flexible compression device for automatic fiber placement
  • Large deformation flexible compression device for automatic fiber placement
  • Large deformation flexible compression device for automatic fiber placement

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] The large deformation in the present invention refers to that through a certain structural design, the deformation of the pressure roller exceeds the elastic deformation capacity of the solid body of the same material. Large amount of deflection to better adhere to curved mold surfaces.

[0031] Such as figure 1 , figure 2 and image 3 As shown, a large-deformation flexible compacting device for automatic silk laying of the present invention mainly includes pressure roller rubber sleeve 1, pressure roller 2, pressure roller shaft 3, bearing 4, elastic retaining ring 5 and other components. The pressure roller shaft 3 is processed by alloy steel, the pressure roller rubber sleeve 1 is set on the pressure roller 2, the pressure roller 2 is installed on the pressure roller shaft 3 through the bearing 4, and the bearing 4 is fixed on the pressure roller shaft ...

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Abstract

A large deformation flexible compression device for automatic fiber placement comprises a compression roller gum cover, a compression roller and a compression roller shaft, wherein the compression roller gum cover sleeves the compression roller, the compression roller is installed on the compression roller shaft, the compression roller can freely rotate so as to drive the compression roller gum cover to rotate around the compression roller shaft, and two ends of the compression roller gum cover are provided with hollow structures. In the filter placement and shaping process, a fiber band is sent out from a fire placement head channel, guided by a guiding comb to an interval between the compression roller and a mold, and finally compressed on the surface of the mold through the compressionroller. When the mold is low in intensity and cannot bear large compression force, the hollow type large deformation flexible compression roller provides a good deformation space, and the compressionforce is easy to control; and when the mold is large in curvature, the large deformation compression roller can fit the surface of the mold well under the circumstance that the compression force is not increased, and fiber filaments are enabled to completely fit the mold. The large deformation flexible compression device for the automatic fiber placement can improve adaptability of the fiber prepreg placement to the mold, can perform the placement of various structures, and improves shaping quality of parts.

Description

technical field [0001] The invention relates to the technical field of fiber laying, in particular to a large-deformation flexible pressing device for automatic fiber laying. Background technique [0002] Resin-based fiber-reinforced composite materials have the advantages of low density, high specific strength, high specific modulus, high fatigue resistance and corrosion resistance, and integration of structure and function, design and manufacturing integration, etc. It has very broad application prospects in aerospace, wind power blades, automobiles and other fields. Fiber placement is an automated, high-quality manufacturing technique for resin-based fiber-reinforced composites. It is a general term for automatic tape laying and forming technology and automatic narrow tape laying and forming technology. It is a fully automated manufacturing technology developed on the basis of existing winding and automatic tape laying technologies. Fiber placement technology inherits t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/38B29C70/54
CPCB29C70/386B29C70/543
Inventor 张小辉吴文锋段玉岗殷骐李晨张陈平
Owner XI AN JIAOTONG UNIV
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