Polishing device of non-spherical surface optical parts

Abstract

The invention discloses a polishing device of non-spherical surface optical parts, which is characterized in that the polishing device comprises a work table, an input shaft, an output shaft, a rotating shaft and a motor, wherein the motor is fixed on the work table and is connected with the input shaft through a first transmission mechanism, a magnetorheological fluid moment servo device is arranged between the input shaft and the output shaft, the output shaft is connected with the rotating shaft through a second transmission mechanism, and a polishing head is fixedly arranged on the rotating shaft. The invention has the advantages that because the magnetorheological fluid moment servo device is arranged between the input shaft and the output shaft, the polishing force in the polishing process can be controlled in real time through controlling the device, and the displacement of the polishing head is controlled through the displacement of the work table arranged in a numerical control machine tool. Thereby, the decoupling in the force / position hardware device can be realized, the force / position coupling problem in the polishing system is solved, and the processing precision of the polishing device and the surface processing quality of parts are improved.

Description

Technical field [0001] The invention relates to a processing device for parts in the mechanical field, in particular to a polishing device for aspheric optical parts. Background technique [0002] Aspheric optical parts have received extensive attention from researchers because of their good optical properties. In recent years, the research and development of aspheric optical parts polishing technology and equipment generally use ultra-precision multi-axis CNC machine tools as a platform, and use multi-axis CNC interpolation motion servo to process to realize the numerical control of the aspheric polishing process. Precise quantification improves the processing efficiency of polishing and polishing to a certain extent. However, the polishing force required in the polishing process needs to be generated and controlled by the displacement of the tool system and the contact deformation with the workpiece. That is to say, the existing polishing system has the problem of force / positi...

AI Technical Summary

Problems solved by technology

However, the required polishing force in the polishing process needs to be generated and controlled by the displacement of the tool system and its contact deformation with the workpiece. That is to say, there is a force / position coupling problem in the existing polishing systems. In the process of ultra-precision machining, the influence of force / position coupling on machining accuracy, surface quality and machining efficiency cannot be ignored, and it often becomes an important factor restricting the further improvement of machining level.

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