基于激光尺的机床动态测试系统特性研究

Research on Testing System of Machine Tool Dynamic Characteristics Based on Laser Ruler

激光尺具有测量精度高、测量范围不受物理限制,配置简便等特点。文章利用激光尺测量装置,进行了数控机床综合动态特性在线测试。首先,研究了激光尺的安装调试和测试方法,提出了快速简洁的激光光路调整方法;其次,通过对影响激光尺测试精度的相关因素进行深入实验分析,提出减少外界因素干扰的有效方案;最后进行了基于激光尺的数控机床进给系统动态特性实际测试,证明激光尺测试装置在数控机床动态特性测试中的准确性与实用性。

Laser ruler is a sensor w ith high measuring accuracy and can be arranged in w ork holding device to implement dynamic measuring machine tool. The overall objective of this study is discussing some properties of laser measuring device by some experiments. The test experiments w hich w ere used consisted of analyzing laser ruler＇s measuring accuracy-related factors and testing dynamic characteristics of CNC machine feed unit. From experiments,some existing problems are found in the application of measurement device based on laser ruler and solved by the further experiment. The results of experiment indicate that measurement device based on laser ruler is more precise and practical.