Flexible passive adaptation type fairing disc and flexible sandwich layer thereof and method for operating flexible passive adaptation type fairing discs

Abstract

The invention discloses a flexible passive adaptation type fairing disc which comprises a chassis (2) and a polishing adhesive (6), wherein the chassis (2) is fixedly connected with a connecting flange (1), the connecting flange (1) is movably connected with a ball head shaft (7) which can be connected with a machine tool, the downside of the chassis (2) is wrapped with a flexible sandwich layer (4) through an isolating membrane (5), and the polishing adhesive (6) is arranged at the bottom of the isolating membrane (5); and the flexible sandwich layer (4) is mainly prepared through carrying out heating reaction on boric acid and dimethyl silicone oil in a certain proportion at a certain temperature. In the process of operating, the fairing disc is installed firstly, and then an operation of processing is performed according to a certain rotating speed and a certain processing path. The fairing disc disclosed by the invention has the advantages of simple control, low cost, high rotating speed, high fairing efficiency and the like.

Description

technical field [0001] The invention relates to the field of computer-controlled polishing devices, in particular to a flexible passive adaptable smooth disk required in the processing of large-diameter and high-steep aspheric surfaces. Background technique [0002] Modern optical processing puts forward strict requirements on the low, medium and high frequency errors of the mirror surface shape, while the traditional CCOS processing technology can easily introduce a large number of medium and high frequency components while correcting the low frequency errors. The traditional smoothing tool is a rubber disc, also known as an asphalt disc, which is similar in size to the workpiece to be processed. However, this integral rubber disc is almost useless for large-diameter, high-steep mirror smoothing. Arizona State University in the United States uses active stress disc technology to smooth the mirror. This active stress disc technology smooth mirror has 12 points of force evenl...

AI Technical Summary

Problems solved by technology

The traditional smoothing tool is a rubber disc that is similar in size to the processed workpiece, also known as an asphalt disc. However, this integral rubber disc is almost useless for large-diameter, high-steep mirror smoothing.

Arizona State University in the United States uses active stress disc technology to smooth the mirror. This active stress disc technology smooth mirror has 12 points of force evenly distributed on the chassis. Each point is connected with a steel wire rope, and 12 motors are used to pull the wire rope to deform it. , the domestic Chengdu Institute of Optoelectronics Technology has also studied this kind of stress plate, and obtained some experimental results, but the control of this smoothing plate is complicated, the cost is high, the rotation speed is very slow, and the smoothing efficiency is low.

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