加工精度自生成及其在超精球体研磨中的实现  

INVESTIGATION ON SELF GENERATION OF MACHINING PRECISION AND ITS REALIZATION IN GRINDING OF SOLID BALLS WITH SUPER PRECISION

作　　者：张伯鹏[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《机械工程学报》2007年第9期75-79,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金(50375081);国家重点基础研究发展计划(973计划;2003CB716204)资助项目。

摘　　要：给出加工精度自生成的原理,着重阐述超精球体研磨精度的自生成问题。从自组织角度看,具有自动调节能力的系统为第1类系统S1,具有目标自确定能力的系统为第2类系统S2,具有自组织能力的系统为第3类系统S3。三种系统都是闭环控制系统,但是彼此之间又有不同功能和结构。给出实现加工精度自生成的条件和加工精度自生成系统S3。讨论加工精度自生成系统的建造,给出典型加工精度自生成系统的框图,着重阐述基于误差自去除自能力的超精球体加工精度自生成问题,包括球体误差自去除能力、球体误差自去除的收敛性、精度自生成和目标精度自生成系统等。Principle of self-generation of machining precision is presented. Self-generation of grinding precision for solid balls with super precision is explained emphatically. From the angle of self-organization there are system 1 （S1） with the ability of self-regulation, system 2（$2） with the ability for selfdetermination of goal and system 3 （S3） with the ability of self-organization. All 3 kinds of systems are closed loop control system, but there are differences in function and construction among them. Both conditions for realizing self-generation of machining precision and system S3 for self-generating of machining precision are given. Building of the system for self-generation of machining precision is discussed. Block diagram of a typical self-generating system for machining precision is given. Self-generation of machining precision for solid balls with super precision based on the ability of self-removal of errors is explained emphatically. Self-generation includes the ability of self-removal of errors for solid balls, convergence of self-removal of solid ball errors, self-generation of precision and self-generating system for the given precision.

关 键 词：加工精度自生成 误差自去除 自组织 信息差 超精球体 

分 类 号：TG61[金属学及工艺—金属切削加工及机床]