回转对称非球面气囊抛光控制算法研究

The algorithm for bonnet tool polishing of rotary symmetrical aspheric surface

介绍一种新型的非球面光学零件抛光方法———气囊抛光,这种方法可以得到高质量的光学表面。针对气囊抛光加工回转对称非球面的特点,进行抛光路径规划,对去除函数进行降维处理,提出抛光驻留时间的计算方法。最后,给出抛光算法的实现框图,并按照实现框图指导实际的玻璃非球面加工,取得满意结果,验证了算法的有效性。

A new optical fabrication technology of bonnet tool polishing is introduced,which could produce high precision aspheric surface. Based on the characteristics of rotary symmetrical aspheric surface, tracks programming algorithm is given, the 2-dimension removal function is reduced into 1-dimension, finally the dwell time algorithm is presented. In the end , the actual application method is brought forward and the experiment of polishing a glassworkpiece with aspheric surface proves that the algorithms above is efficient.