摘要
以多体系统运动学误差分析理论为基础,根据超精密金刚石车床Nanoform200的"T"型结构布局和误差分布情况,推导出了包含各项几何误差的超精密车床相对运动约束方程;求解此方程就可以得到补偿几何误差后修正的数控代码值。在此基础上,开发了针对光学器件加工的超精密车床的误差补偿软件。通过实际切削实验表明,该补偿技术能使光学器件的超精密车削加工的轮廓精度提高50%。
Based on the theory of kinematics for multi-body system,the relative motion constraint equation is deduced according to the structure layout and the error distribution of the ultra precision turning machine tool Nanoform200.By solving the constraint equation,the corrected NC code is derived and can compensate the geometric errors.The error compensation software is developed aimed at the ultra precision manufacturing of optics parts.The cutting experiments show that the method and model in this paper can improve the accuracy about 50% for the ultra precision turning of optics parts.
出处
《北京工业职业技术学院学报》
2011年第1期18-21,共4页
Journal of Beijing Polytechnic College
关键词
误差补偿
超精密加工
光学器件
多体系统
error compensation
ultra-precision manufacturing
optics parts
multi-body system
