数控加工中心的位置误差补偿模型

Compensation Model of Position Accuracy for CNC Manufacturing Center

本文以三轴数控加工中心为例，利用齐次矩阵建立了完备的数控加工中心的位置误差补偿模型。利用本文方法可以对三轴以上的多轴数控加工中心的位置误差进行建模。本文的建校方法和结论可以应用到三坐标测量机、工业机器人的位置误差模型的建立和位置误差补偿中去，以便在不增加制造成本的情况下，提高加工精度或测量精度，实现“不使用精密设备的精密加工”。

A general error compensation model of position accuracy for computer numerical control (CNC) manufacturing center is set-up by using homogeneous matrix.It is used in the error compensation of a 3-axis CNC manufacturing center. This method can be extended to the modeling of multi-axis machines, and applied to the modeling of coordinate measuring machine or industrial robot to improve their accuracy without much expenses and realize what we called 'precision machining without precision machines'.