Machining device used for machining off-axis multi-reflector imaging system

Abstract

The invention discloses a machining device used for machining an off-axis multi-reflector imaging system. The machining device used for machining the off-axis multi-reflector imaging system comprisesa machine tool base, wherein a workbench is installed on the machine tool base, a special clamp used for clamping the off-axis multi-reflector imaging system is installed on the workbench, a moving frame is installed on the machine tool base, a lifting frame is installed in the moving frame, a lifting board is installed in the lifting frame, a rotating shaft is arranged on the lifting board, a small ultrasonic motorized spindle and a swing motor are connected with the bottom of the rotating shaft through a U-shaped board, and the small ultrasonic motorized spindle can conduct X-axis movement,Y-axis movement and Z-axis movement, and can conduct rotational movement and swing movement. During complex surface machining, complex curved surfaces can be machined by the small ultrasonic motorizedspindle which can conduct movement at multiple degrees of freedom, and the machining precision is high.

Description

technical field [0001] The invention relates to a machining device for an optical element, in particular to a machining device for machining an off-axis multi-reflection imaging system. Background technique [0002] At present, with the vigorous development of science and technology in various fields such as industry and agriculture, national defense, and aerospace, and the upgrading of industries, the application of space optical systems in agriculture and forestry, ocean monitoring, topographic mapping, military reconnaissance, resource census, and disaster prevention and rescue The application has been significantly improved. The space optical system mainly uses optical elements to image the target through multiple reflections or refractions. In various optical structures, because the reflective optical system has the characteristics of no chromatic aberration, easy optical path folding, and easy light weight, etc., in It has been widely used in space optical system. Thi...

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Problems solved by technology

[0004] However, the off-axis multi-mirror system has the disadvantages of high lens processing precision and difficulty in assembly and debugging, and has not been widely used.

[0005] Patent CN108466107A provides a processing device for off-axis three-mirror imaging system, which adopts an integrated processing method to realize the processing of off-axis three-mirror system, but the mirrors must be distributed on the same circumference, which is subject to great constraints and cannot be freely Suitable for complex off-axis optical system processing

[0006] Patent CN110126101A provides a processing device for off-axis multi-reflection imaging system. The center position and radius of gyration of the optical system must be determined during processing. The processing efficiency is not high and the constraints are relatively large, so it cannot be freely applied to more complex Off-axis optical system processing

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