基于远心原理的滚珠丝杠测量系统设计
2019-05-20
作者：邓锦湖1，孙维方2，姚斌1，陈彬强1
单位：1厦门大学；2温州大学
摘要：针对传统滚珠丝杠外螺纹检测技术在检测参数不全面、检测范围受限等方面的缺陷，设计了一种基于远心镜头成像及检测算法的视觉测量仪。对仪器的测量原理和设计思路进行了研究，利用多次拍摄滚珠丝杠同一位置的方式求平均值，有效降低了随机误差，完成了对滚珠丝杠齿廓和珠心径的测量。与接触式测量仪器结果进行了对比，获得轮廓测量误差为3μm，珠心径测量误差为3.6μm。
关键词：滚珠丝杠；视觉测量；远心；高精度
中图分类号：TG802；TH162文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.05.028
Design of Ball Screw Measuring System Based on Telecentric Principle
Deng Jinhu，Sun Weifang，Yao Bin，Chen Binqiang
Abstract:Aiming at the shortcomings of traditional ball screw detection technology in the aspects of incomplete detection parameters and limited detection range，a visual measuring instrument based on telecentric lens imaging and detection algorithm is designed.The measurement principle and design idea of the instrument are studied.The average value of the ball screw is taken at the same position for multiple times，which effectively reduces the random error and completes the measurement of the ball screw profile and the radius of ball center.The results of the contact measuring instrument are compared，and the result of the contour measurement error of is 3μm and the measurement error of radius of ball center is 36μm.
Keywords:ball screw；visual measurement；telecentric；high precision