车铣复合数控机床几何误差补偿技术的研究  

Research on Geometric Error Compensation Technology for Turning & Milling Composite NC Machine Tool

作　　者：范晋伟[1] 蒙顺政[1] 罗建平[1] 李伟[1] 雒驼[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100124

出　　处：《机床与液压》2013年第5期1-4,29,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(50775004);北京市教委资助项目(KM200110005003)

摘　　要：研究车铣复合数控机床存在的几何误差问题。根据车铣复合数控加工中心的结构特点,以多体系统运动学理论为基础,采用低序体阵列描述车铣复合加工中心的拓扑结构,分别建立了车铣复合数控机床的车削模式和铣削模式的精密加工方程,并设计误差补偿软件和进行仿真试验。实验结果表明:运用多体系统运动学理论建立的车铣复合数控加工中心几何运动误差模型是正确的;软件误差补偿提高了车铣复合数控加工中心的加工精度,效果明显。The geometric error problem existing in turning＆milling composite NC machine tool was researched. According to the structure characteristics of turning＆milling composite NC processing center, based on the multi-body system theory, the low-order body arrays were used to describe the topological structure of turning＆milling composite NC processing center. A precision process equation of turning mode and a precision process equation of milling mode were built, and simulation was made for software compensa- tion. The experimental results show that the geometry motion error model of turning＆milling composite NC machine tool is correct, and the software error compensation improves machining accuracy of turning＆milling composite NC machine tool.

关 键 词：复合数控机床 几何误差 多体系统理论 软件补偿 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TP311[自动化与计算机技术—计算机软件与理论]