Manufacturing method of non-isometric closed square tube shaped carbon fiber beam structural workpiece of unmanned aerial vehicle

Abstract

The invention relates to a manufacturing method of a non-isometric closed square tube shaped carbon fiber beam structural workpiece of an unmanned aerial vehicle. The manufacturing method comprises the following steps: manufacturing a mold; then manufacturing rigid false body in the mold; then manufacturing an air bag core membrane in the rigid false body; and finally, removing the rigid false body, paving a prepreg between the mold and the air bag core membrane and carrying out vacuumizing, vacuum pre-compacting, process combining and curing to obtain a product. The integral forming tool is simplified effectively, the forming process is simplified, and the integrally formed product is reliable in performance and stable in dimension.

Description

technical field [0001] The invention belongs to the technical field of UAV composite material forming technology, and relates to a manufacturing process of non-equal-diameter closed square tubular carbon fiber beam structural parts for small and medium-sized UAVs. Background technique [0002] There are various structural forms of UAV composite beams, and their forming methods are also different. Compared with the traditional linear composite material beam structure, the advantage of the complex non-equal diameter closed square tubular beam structure is that it can better arrange the internal structure layout of the fuselage and wings, optimize the internal structure of the fuselage, effectively distribute the load, and make the space High utilization rate and good conformability, especially suitable for small and medium-sized high-performance UAV body structures with wing-body fusion layout; the overall molding has high requirements for molding technology and tooling, and t...

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Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a method for manufacturing small and medium-sized UAV non-equal diameter closed square tubular carbon fiber beam structural parts, which solves the problem of non-equal diameter closed square tubular carbon fiber beam structural parts In order to solve the problem of limited molding application, optimize the internal structure layout of the UAV body, improve the operability and demoulding performance during the product molding process, and improve the application range of the overall molding process for small and medium-sized complex structural parts, so that it can be applied to equal diameters The manufacture of tubular carbon fiber composite beam structure parts can also be used for the manufacture of non-equal diameter closed square tubular carbon fiber composite beam structures

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