基于Renishaw激光干涉仪的数控机床摆动轴位置精度的测量与分析

Measurement and Analysis of Position Accuracy of Numerically-controlled Machine Swing Axis Based on Renishaw Laser Interferometer

文中主要介绍了如何利用Renishaw XL-80激光干涉仪和XR20-W回转轴校准装置,结合摆动轴转台实际结构和安装形式对旋转位置精度进行准确的测量与分析。通过对摆动轴测量基本方法和条件的介绍,特别是深入解析了摆动轴直接工装法和偏置测量法的试验步骤和关键点,有效降低了环境条件和检测系统误差对摆动轴转台位置精度准确性的影响,从而使摆动轴转台得到更精准的测量数据和误差分析,提高数控机床中摆动轴转台的位置精度。

This paper mainly introduces how to use Renishaw XL-80 laser interferometer and XR20-W rotary axis calibrator in combination with the actual structure and installation form of the swing axis turntable to accurately measure and analyze the rotation position accuracy.Through the introduction of the basic methods and conditions to measure the swing axis,a deep analysis is made especially of the test steps and key points of the direct tooling method and the bias measurement method of the swing axis,which effectively reduces the influence of the environmental conditions and the errors of the detection system on the accuracy of the swing axis turntable positions.In this way,more accurate measurement data and error analysis are obtained for the swing axis turntable and the position accuracy of the swing axis turntable of the NC machine is improved.