Space closed type flexible precise adjusting device and assembling method thereof

Abstract

The invention discloses a space closed type flexible precise adjusting device and an assembling method thereof. The device comprises a rhombic elastic structure (1), a spiral assembly 1 (2), a spiralassembly 2 (3), a translation screw rod (4), a limiting stud (5), a motor assembly (6), an angular displacement sensor (7), an anti-torque support (8) and a linear displacement sensor assembly (9). According to the closed type flexible precise adjusting device, through the transmission design of a differential screw, submicron-level high precision and high self-locking performance are achieved, and meanwhile displacement transmission is conducted through the rhombus elastic structure (1); and the torsion resistance of the device is greatly improved through the anti-torque support (8). The assembling method plays an important role in guaranteeing the performance of the device and mainly comprises the steps of firstly completing assembling of the main spiral assembly, the standby spiral assembly and a translation screw rod, then installing the structure with the rhombic elastic support as the reference, installing the linear displacement sensor assembly, then installing the main motor assembly and the standby motor assembly, and finally installing the anti-torque supporting structure.

Description

technical field [0001] The invention relates to a space-enclosed flexible precision adjustment device and an assembly method thereof, which is a flexible precision adjustment device and an assembly method applied to aerospace optical remote sensors, and belongs to the technical field of aerospace optical remote sensors. Background technique [0002] With the continuous development of space active optics applications, it is necessary to achieve good imaging quality through on-orbit precision adjustments. Therefore, there are more and more demands for precision adjustment mechanisms applied in space environments. At present, there are a variety of space optical components. Precise mechanisms for position and image quality adjustment, such as six-degree-of-freedom parallel mechanisms and two-dimensional pointing mechanisms. Especially in the position adjustment of the secondary mirror in space, the six-degree-of-freedom mechanism has been widely used, which can realize the adju...

AI Technical Summary

Problems solved by technology

However, in some specific applications, such as when only a limited number of degrees of freedom need to be adjusted, the use of a six-degree-of-freedom mechanism is not only complicated in configuration, but also difficult to control, and it is often difficult to improve the stiffness of the structure.

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