A Uniform Force Focusing Mechanism Driven by an Inclined Guide Rail

Abstract

The invention discloses a uniform focusing mechanism driven by an inclined guide rail, which comprises a focusing mounting base, supports slidingly connected to both sides of the focusing mounting base through a vertical linear guide rail, and a base assembled and fixed on the upper end of the supporting base. ;A horizontal focusing assembly is installed on the upper part of the base; the horizontal focusing assembly has a spline shaft and a hollow lead screw that cooperate with a sliding pair, and the hollow lead screw cooperates with the spline shaft through a sliding pair to realize the axial direction along the spline shaft. When moving, the hollow lead screw is transmission-connected with the wedge-angle slider mechanism to drive the wedge-angle slider to slide along the inclined guide rail and drive the focusing mount to move along the vertical linear guide rail to adjust the vertical position of the optical element. The hollow screw of the present invention can move horizontally on the spline shaft, thereby compensating the movement interference caused by the manufacturing and installation errors of the left and right wedge angle sliders. Therefore, the application solves the multi-support point under the premise of ensuring the support rigidity The problem of motion interference reduces the difficulty of parts processing and assembly.

Description

technical field [0001] The invention relates to the technical field of space loads, in particular to a force-balanced focusing mechanism driven by an inclined guide rail for large-volume space optical elements. Background technique [0002] Since the application environment of the space optical system is very harsh, and the environment has complex factors affecting the optical system, such as changes in ambient temperature, changes in atmospheric pressure, system vibration, and external impacts, etc., will cause the focal plane of the optical system to produce A certain degree of axial offset will adversely affect the imaging quality of the optical system. In order to ensure the imaging quality of the optical system, it is necessary to adjust the axial position of the corresponding optical components in the optical system, so as to reversely correct the defocus amount of the focal plane of the optical system. At this time, a focusing mechanism is required. [0003] With the...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the support rigidity of large-volume focusing optical elements is difficult to increase, and to provide a force-balanced focusing mechanism driven by inclined guide rails that provides two support points but does not introduce motion interference

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