Rear cover device and integral molding method suitable for space-borne all-composite material camera

Abstract

The present invention provides a rear cover device and integral molding method suitable for space-borne full-composite cameras, including: a structural molding step: design a molding mold and a prefabricated block according to the design structure and design dimensions; layer laying step: Lay quasi-isotropic carbon cloth on the forming mold, and place prefabricated blocks; connection step: according to the structural requirements, perform prefabricated block positioning and connection strengthening; pressurization step: place soft film between the prefabricated blocks and on the surface of the carbon cloth in sequence; Integral mold clamping step: adopting the method of overall co-curing in an autoclave for integral molding, which is suitable for the back cover of the on-board full-composite camera. The invention effectively ensures molding pressurization, reduces the overall weight of the camera back cover, reduces the overall thermal expansion deformation, improves the overall thermal expansion reliability, reduces the stress concentration at the junction of the prefabricated block and the carbon cloth, and improves the overall composite The overall reliability and stability of the material camera back cover.

Description

technical field [0001] The invention relates to the field of integral forming methods, in particular to a rear cover device and integral forming method suitable for a space-borne all-composite camera. Background technique [0002] With the continuous progress and development of the aerospace industry, the requirements for satellites are getting higher and higher. Among them, the weight of the whole satellite and the structural strength are the key factors considered in the design of satellites. The reduction of satellite weight can provide more design space for payloads, and the improvement of structural strength has become an important factor to improve the reliability of satellites. The back cover of the traditional metal camera is heavy, which reduces the design space of the satellite payload; the thermal expansion coefficient is large, resulting in poor reliability of the structural size and surface accuracy; the connection between the rib and the body is prone to stress...

AI Technical Summary

Problems solved by technology

This integral molding method cannot be applied to the integral molding of the all-composite material camera back cover, and cannot improve the reliability and stability of the overall structure of the all-composite material camera back cover.

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