摘要
针对五轴联动车铣复合加工中心制造、装配和运动过程产生的几何误差问题,文章以多体系统运动学理论为基础,根据车铣中心的复杂结构特点,分别建立了车铣中心的铣削模式和车削模式下的运动误差模型,并给出了精密数控指令的求解方法和进行了误差补偿仿真试验。实验结果表明:采用多体系统运动学理论建立车铣复合加工中心的几何运动误差模型是正确性;迭代法求解的精密数控指令准确、快捷;软件误差补偿投入少、效果明显。
For the geometric errors produced problems of five-axis turningSanilling composite machining center produced by manufacturing, assembly and movement, this article takes the multi-body system as the basis, according complex structure characteristics of the turning＆milling center, we can build the movement error models of turning＆milling center under the milling mode and turning mode, and gives the method to solve precision CNC instructions and conduct error compensation simulation test. The experimental results show that the geometry motion error model of turning＆milling composite machining center is correct, which build by multi-body system theory; Using the Iteration method to solve the precision CNC instructions is accurate and fast; Software error compensation need less cost, and the effect is obvious.
出处
《组合机床与自动化加工技术》
北大核心
2012年第9期38-41,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金赞助项目(50775004)
北京市教委资助项目(KM200110005003)
关键词
车铣中心
多体系统理论
误差建模
软件补偿
turning ＆milling center
multi-body system theory
error modeling
software compensation
