测头圆度对齿轮极坐标测量法精度影响的分析  

Analysis of the Influence of Roundness of Probe on the Accuracy of Gear Polar Coordinate Measuring Method

作　　者：滕玉彬 孙涛 Teng Yubin;Sun Tao(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150000,China)

机构地区：[1]东北林业大学机电工程学院,黑龙江哈尔滨150000

出　　处：《机械传动》2021年第7期172-176,共5页Journal of Mechanical Transmission

摘　　要：采用极坐标法测量圆柱齿轮的渐开线齿廓偏差时,圆球测头与齿廓的接触点在测头球面上不断变化,圆球测头的圆度误差会影响测量的精度。为此,用椭圆形球测头模拟圆球测头的圆度误差,提出了一种可以计算椭圆形球测头本身产生的测量误差的计算方法。采用该方法对不同类型的测头,在测量不同规格齿轮时产生的测量误差进行了计算和分析,归纳和总结了椭圆形球测头在多种情况下产生的测量误差的大小和变化规律。When the polar coordinate method is used to measure the involute tooth profile deviation of cylindrical gear,the contact point between the spherical probe and the tooth profile changes constantly on the spherical surface of the probe.The roundness error of the ball probe will affect the measurement accuracy.In order to solve this problem,an ellipse ball probe is used to simulate the roundness error of the ball probe,and a calculation method is proposed to calculate the measurement error produced by the ellipsoid probe itself.This method is used to calculate and analyze the measurement errors of different types of probes when measuring gears of different specifications.The size and variation rules of the measurement errors of elliptical ball probes under various conditions are summarized.

关 键 词：极坐标法 椭圆形球测头 渐开线齿廓 误差计算 

分 类 号：TG86[金属学及工艺—公差测量技术]