Technology forming method of small and medium-sized unmanned aerial vehicle composite material outer wing

Abstract

The invention relates to a technology forming method of a small and medium-sized unmanned aerial vehicle composite material outer wing. The method comprises the following steps of forming mold manufacturing, front edge silicon rubber core mold manufacturing, film bag body manufacturing, outer wing front edge manufacturing, and outer wing main body manufacturing; after surface treatment is correspondingly carried out on bonding areas corresponding to the outer wing front edge and a main body front beam surface, and structure double-sided adhesive tapes with the same shape as that of the bondingareas are tore to remove isolation paper on one sides, the adhesive surfaces are adhered to the bonding areas of the outer wing front edge, then solating films on the other sides of the structural adhesive tapes are tore, and the outer wing front edge is horizontally embedded into a boss of the corresponding position of the outer wing main body through a positioning groove at the left end of theouter wing front edge so as to obtain a composite material integral structure outer wing product. According to the technology forming method, the problem of limitation of multiple curing forming, andthe uniformity of the product quality and the thickness are improved.

Description

technical field [0001] The invention belongs to the technical field of UAV composite material forming technology, and relates to a small and medium-sized UAV composite material outer wing technology forming method. Background technique [0002] At present, the outer wings of domestic UAVs are mostly assembled by glued skin, balsa ribs and beams. The skin is usually formed by wet hand-laid FRP, and the balsa ribs and beams are usually aviation laminates or wooden laminated FRP. Structure; as prepreg materials are used more and more widely, the prepreg molding method not only has uniform glue content, light weight, comprehensive mechanical properties and high environmental adaptability, but also is more conducive to the realization of design / manufacturing integration , not only by realizing the overall molding of the outer wing structure, but also taking advantage of the overall molding advantages of composite materials to achieve effective weight reduction, and to enable the ...

AI Technical Summary

Problems solved by technology

This method is a traditional composite material outer wing structure molding method, which mainly realizes the overall weight reduction of the outer wing structure through FRP molding and foam sandwich structure, but this method has problems such as high production cost, long production cycle, and environmental protection. Each part needs to be molded and assembled together, and the manufacturing process needs to be cured and molded three times. The FRP molding operation is not conducive to environmental protection; at the same time, compared with prepreg molding, the product weight, glue content and thickness achieved by this method are larger. Problems such as unevenness are not suitable for the high performance and lightweight requirements of small and medium-sized UAVs

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