摘要
位置闭环控制的CNC机床在进行连续切削时,零件的轮廓精度与伺服驱动系统的稳态、动态特性有关。介绍了位置增益、跟随误差、轮廓误差,建立了位置闭环控制系统传递函数、跟随误差与轮廓误差数学模型,研究了直线和圆弧轮廓跟随误差与轮廓误差的关系,分析了CNC机床伺服系统特性对零件轮廓误差的影响机理,为提高零件轮廓的加工精度提供理论基础。
While carrying out continuous cutting process by CNC machine tool with position closed loop control, contour tracking precision of the part relates to the stability and dynamic characteristic of servo drive system. The position gain, tracking error and con- tour error were introduced, the mathematic models and transfer function of position closed loop control system were given, the relations between the contour error and tracking error for beeline and circular contour were analyzed. The influence of CNC machine tool servo system characteristic on the contour error of part was discussed.
出处
《机床与液压》
北大核心
2009年第3期31-33,36,共4页
Machine Tool & Hydraulics
