Reflection mirror switching mechanism

Abstract

The invention relates to the technical field of optical machine structures, and particularly discloses a reflection mirror switching mechanism. The mechanism comprises a switching mechanism support seat, a reflection mirror support, and a driving assembly. The reflection mirror support is used for installing reflection mirrors and is in hinged connection with the switching mechanism support. The driving assembly is used for driving the reflection mirror support to rotate, and comprises a driving motor, a driving motor runner arranged on the driving motor, and a switching grooved pulley which is in matching connection with the driving motor runner. The driving motor drives the driving motor runner and the switching grooved pulley so as to achieve position switching on the reflection mirrorsupport. According to the invention, rapid switching of the reflection mirrors is achieved; and the mechanism is high in repeated positioning precision, reliable in self-locking ability, compact in structure and easy to process, assemble and adjust.

Description

technical field [0001] The invention belongs to the technical field of optical-mechanical structures, and mainly relates to a mirror switching mechanism. Background technique [0002] Since some airborne visible / infrared optical systems require accurate and fast switching of mirrors, a switching mechanism with high repeat positioning accuracy and high switching speed is required, and at the same time, the switching mechanism is required to have good self-locking ability to resist load. Effect of machine vibration on optical system. [0003] At present, the mirror switching mechanisms used at home and abroad generally include a translation switching mechanism and a rotation switching mechanism. Although the translation switching mechanism can realize the rapid switching of the mirror, in order to ensure the repeated positioning accuracy and self-locking performance of the mirror, its limit and self-locking mechanisms are generally more complicated, and the processing and ass...

AI Technical Summary

Problems solved by technology

Although the translation switching mechanism can realize the rapid switching of the mirror, in order to ensure the repeated positioning accuracy and self-locking performance of the mirror, its limit and self-locking mechanisms are generally more complicated, and the processing and assembly will also be more complicated, and it will take up a large amount of time. Space volume, this switching mechanism is not suitable for optomechanical systems with limited space

[0004] Existing rotary switching mechanisms, such as four-link switching mechanisms and worm gear switching mechanisms, can realize the self-locking property of the mirror, but there are also disadvantages such as poor repeat positioning accuracy and slow switching speed.

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