Magnetostriction type double-stage displacement regulating mechanism for multiple spliced mirror surfaces

Abstract

The invention belongs to the field of magnetostriction double-stage precise driving, and particularly relates to a magnetostriction type double-stage displacement regulating mechanism for multiple spliced mirror surfaces by taking a magnetostriction material as a core element. The mechanism comprises three same groups of a double-stage displacement regulating mechanism, elastic steel, a flexible rubber block, a central supporting seat, a central supporting rod and a supporting substrate; and each double-stage displacement regulating mechanism comprises an electric cylinder, a supporting plateand a magnetostriction actuator. Most of mirror surface regulating mechanisms developed by using a magnetostrictive effect principle in the prior art can only realize one-stage regulation for displacement; however, the magnetostriction type double-stage displacement regulating mechanism for multiple spliced mirror surfaces by taking the electric cylinders as one-stage rapid driving and the magnetostriction actuators as two-stage precision driving is designed for the disadvantages of an existing spliced mirror surface micro displacement regulating mechanism, so that the problem that quick large-scale regulation and precision positioning cannot be carried out simultaneously when sub-mirrors are spliced is solved.

Description

technical field [0001] The invention belongs to the field of magnetostrictive two-stage precision drive, in particular to a magnetostrictive double-stage displacement adjustment mechanism with spliced ​​multi-mirror surfaces with giant magnetostrictive material as the core component. Background technique [0002] Since the 1980s, with the continuous development of science and technology related to space and military fields, countries have been committed to space exploration, and at the same time, space telescopes have been continuously improved. The continuous increase in the aperture of telescopes used for space exploration has brought inconvenience to the design and manufacture, so active optical technology was born. As a branch of active optical technology, splicing technology can effectively solve the problem of mirror design and manufacture of large-aperture telescopes. The splicing mirror optical technology is to splice multiple small-caliber sub-mirrors into a large-...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the deficiencies of the existing micro-displacement adjustment mechanism technology for splicing mirrors, and designs a magnetostrictive splicing multi-mirror double-sided motor with electric cylinder as the first-level fast drive and giant magnetostrictive actuator as the second-level precision drive. The level displacement adjustment mechanism solves the problem that the spliced ​​sub-mirror cannot be adjusted quickly and in a large range and precisely positioned at the same time

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