基于一维测头与标准球的数控机床几何误差机载测量系统的研究

2018-11-12

作者：林志祥，陈剑雄单位：福州大学

摘要：借鉴多维测头的测量原理，提出基于一维测头与标准球的数控机床几何误差机载测量系统。结合机载测头的测量方法，通过一维测头测量标准球5个测点。由于球心三维偏差引起的Z方向偏移，构建了基于五点测量法的球心三维偏差辨识模型。在自行搭建的测量平台上，通过对比预设的球心偏差与一维测头的实际测量值，以验证基于一维测头与标准球测量系统的正确性和有效性。

关键词：测量系统；几何误差；一维测头；标准球

中图分类号：TG502.13；TH161文献标志码：A

Study on Onmachine Geometric Error Measurement System of CNC Machine

Tool Based on Onedimensional Probe and Standard Ball

Lin Zhixiang，Chen Jianxiong

Abstract:Drawing from the measurement principle of multidimensional probe，an onmachine CNC machine tool geometric error measurement system based on onedimensional probe and standard ball are purposed.Meanwhile，combined with onmachine probe measurement methods，an identification model of the threedimensional spherical center deviation are built by measuring the deviation of five points，which is caused by the threedimensional deviation of the spherical center in z direction on the standard ball by a onedimensional probe.Finally，on the measurement platform，the correctness and validity of the measurement system based on the onedimensional probe and the standard ball are verified by comparing with the preset spherical center deviation and the actual deviation from onedimensional probe.

Keywords:measurement system；geometric error；onedimensional probe；standard ball