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Forming die and method for composite material special-shaped annular rib structure

A technology of composite materials and molding methods, which is applied in household appliances, other household appliances, household components, etc., can solve problems such as complex structure of ribs, reduced manufacturing efficiency, integration of composite materials, and weakened advantages of lightweight, so as to achieve lay-up Easy to operate, high consistency effect

Inactive Publication Date: 2019-11-19
XIAN AIRCRAFT IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After segmentation, it is necessary to add connecting angle pieces, standard parts, etc. for combination, resulting in complex rib structure, increased weight, increased raw material and labor costs, reduced manufacturing efficiency, and significantly weakened the advantages of integrated and lightweight composite materials

Method used

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  • Forming die and method for composite material special-shaped annular rib structure
  • Forming die and method for composite material special-shaped annular rib structure
  • Forming die and method for composite material special-shaped annular rib structure

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] Such as figure 1 -5 shows the schematic diagram of the overall molding mold for the special-shaped annular rib structure. It can be seen from the figure that the molding mold for the special-shaped annular rib structure includes two parts: the main punch 5 and the vertical rib laying mandrel 6 . The main body punch 5 is an annular structure, and its external shape is consistent with the internal shape of the special-shaped annular rib structure. The vertical bar laying mandrel 2 is a segmented structure, and the position of the ring structure with the largest curvature change is used as the dividing plane 7. Each segment structure includes mandrels on the left and right sides, and the left mandrel 8 and the right mandrel 9 are provided with Precise positioning of the connection hole 10 . The mandrels are mechanically connected by delica...

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Abstract

The invention discloses a forming die and method for a composite material special-shaped annular rib structure. The forming die comprises a main body terrace die and a partition block core die and ismanufactured by the way that a core die tool is manufactured in a segment mode, and are transferred to the main body terrace die after the laying, and then pin connection is adopted to realize the precise sleeving of a special-shaped annular structure core die and the main body terrace die. The laying of rib edge strips on the main body terrace die is completed, the laying, the merging and twisting of the left and right side studs outside the main body terrace die are completed, after stud laying layers are transferred to edge strip laying layers of the main body terrace die, a core mold connection area is laid, and finally a complete annular overall laying layer is formed. The integral forming of a composite material special-shaped annular rib is achieved, the laying layer operation is simple, the manufacturing efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of composite material forming technology, and relates to a forming mold and a forming method of a special-shaped annular rib structure of composite material. Background technique [0002] Composite materials are widely used in the aerospace field due to many advantages such as high specific strength, high specific stiffness and strong designability. In recent years, composite materials have also begun to be used in the main load-bearing structures that bear large loads. Such as commercial and military aircraft wings, fuselage and empennage and other components. Such components often adopt composite thin-walled reinforced structures. [0003] Common ribs are generally slender structures, and the cross-sectional shapes include L-shaped, T-shaped, I-shaped, Z-shaped and hat-shaped, etc., with the same cross-section or small curvature changes, regular shape and simple structure. When paving, the metal punch i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/30B29C33/76B29C70/34B29L31/00
CPCB29C33/301B29C33/76B29C70/342B29L2031/7102
Inventor 成艳娜肖光明孟翠翠刘训新杨益
Owner XIAN AIRCRAFT IND GROUP
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