一、引言在日本,直齿轮及斜齿轮的精度测量法有日本工业标准 JIS B 1752,它将齿轮的误差分为周节、齿形、齿向等各种误差,并规定了各种误差的测量方法。而且在 JIS B 1702“直齿轮及斜齿轮的精度”标准中根据它们的允许误差规定了精度等级。采用这种规定方法的还有其它国家,如国际标准 ISO I. INTRODUCTION In Japan, the precision measurement of spur gears and helical gears is based on the Japanese industrial standard JIS B 1752, which divides the error of gears into various errors such as the pitch, tooth shape and tooth direction, and provides various errors Measurement methods. And in JIS B 1702 “spur and helical gear accuracy ” standard in accordance with their allowable error to specify the accuracy level. There are other countries that adopt this method, such as the international standard ISO