Filament winding forming tool for conical shell and equal-thickness winding forming method thereof

Abstract

The invention discloses a filament winding forming tool for a conical shell and an equal-thickness winding forming method thereof. The filament winding forming tool comprises a metal supporting shaft,a conical core mold and an auxiliary tool, the metal supporting shaft is fixedly installed in the center of the large-diameter end face of the conical core mold, the auxiliary tool is detachably connected to the small-diameter end of the conical core mold, the metal supporting shaft, the conical core mold and the auxiliary tool are coaxially arranged; and the equal-thickness winding forming method for the conical shell mainly comprises the following steps that S10, a winding path is designed; S20, a processing program is compiled; S30, test machine winding is carried out; S40, filament winding by a wet method is carried out; S50, small-end arc surface modeling is carried out; and S60, heating, curing and forming are carried out. According to the filament winding forming tool for the conical shell and the equal-thickness winding forming method thereof, thickness uniformity of all parts during winding on the large-angle conical surface can be achieved, thickness accumulation is avoided,the wave-transparent requirement for electromagnetic wave signals is met; and the manufacturing efficiency is higher, the cost is lower, the structure is simple, and the process is simple and convenient.

Description

technical field [0001] The invention relates to the technical field of fiber winding molding of composite material products, in particular to a fiber winding molding tool for a conical shell and a winding molding method of equal thickness. Background technique [0002] The main role of the radome is to protect the normal operation of the antenna equipment, and also to ensure the electrical performance and maneuverability of the aircraft. The radome is generally integrally formed with insulating non-metallic materials. Glass fiber reinforced resin matrix composite material is a widely used radome material. Its application frequency band is mainly in the range of 10GHz. Other reinforcements mainly include quartz fiber, graphite fiber and aromatic Polyester fiber, polyester, epoxy and cyanate resin can be used as the matrix. [0003] At present, most of the domestic radome research and development and production of radome adopts compression molding or weaving molding method to...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the radomes that are developed and produced in China are produced by compression molding or braiding molding, which are widely used in civil aviation, meteorology, and national defense. The compression molding or braiding molding method has complex processes and long molding cycles. features

[0004] Filament winding technology has the advantage of high efficiency. The traditional fiber winding method adopts geodesic angle to wind on the conical mandrel with uneven thickness, which seriously affects the wave transmission performance of electromagnetic waves.

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