Antenna reflector composite skin forming mold suitable for satellite

Abstract

The invention provides an antenna reflector composite skin forming mold suitable for a satellite. According to mold designing ideas, the mold is overall of a welded structure, reinforcing bars are welded to the back face of the molded surface, the bottom of the mold is supported through three points, and hoisting points are arranged on the reinforcing bars; and it is determined that each supporting point is of a spherical structure, it is definite that the reinforcing bars are each in an arc shape, the middles of the reinforcing bars are hollowed out, and the reinforcing bars at the hoisting points are thickened. For the high-precision reflector composite skin forming mold suitable for the satellite, a designing method of the mold which is light in structure, uniform in thermal field distribution, small in lifting and transferring deformation and suitable for any working platform is developed.

Description

technical field [0001] The invention relates to mold design, in particular, to an antenna reflector composite skin forming mold suitable for satellites. In particular, it relates to a design method for a high-precision antenna reflector composite skin forming mold suitable for satellites. Background technique [0002] The antenna reflector composite skin is an important component of the antenna reflector, and its profile accuracy will directly affect the profile accuracy of the antenna reflector, and the profile accuracy of the reflector is related to the imaging accuracy of the satellite antenna reflector. The forming die is the basis for ensuring the surface accuracy of the antenna reflector during the forming process of the composite skin of the antenna reflector, and the structural stability design of the forming die is very important. [0003] At present, the composite material skin molding molds for high-precision reflectors are mostly cast structures, and the reinfor...

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Problems solved by technology

[0003] At present, the composite material skin molding molds for high-precision reflectors are mostly cast structures, and the reinforcement ribs of the mold are square and arranged in a well shape, which leads to a heavy mold structure, low utilization of the reinforcement ribs, and structural stability of the molding mold. Uncertainty changes will occur over time; secondly, the mold is in surface contact with the platform surface during use, so that the supporting force point of the mold on different platform surfaces will also change, which will affect the surface accuracy of the mold; and The unreasonable design of the lifting point also greatly affects the accuracy of the mold surface during the lifting process

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