With the rapid development of modern optics and its corresponding science and techniques , the application of optical facilities become more and more abroad , especially the aspheric optical facilities , so it is exigent to develop a new ultra - precision process method which is suitable for hard - brittle material in aspheric process 随着当今光学以及相关科学技术的迅速发展,光学器件的应用越来越广泛,尤其是非球面光学元件,因此迫切需要研究可以适用于脆硬材料非球面加工的超精密加工方法。
The error compensation software for cam precision grinding has been developed , and results show that the cam grinding accuracy can be ensured and the productive can be improved . ( 1 ) by using the method of movement error analysis of mbs , the geometric error model of sk - 21 nc machine tool has been established , and the calculation equation for precision processing of nc machine tool has been derived , which lays a good foundation of programming the error compensation software 基于该磨床目前的状态和已有的研究成果,本课题展开了以下主要研究工作: ( 1 )以多体系统运动学理论为基础,建立精确的sk - 21数控凸轮磨床运动模型,全面考虑各项结构误差和运动误差对加工精度的影响,推导出精密加工约束条件方程,揭示机床实精密加工的实质。