多年来,测量圆锥体零件的锥度值时,一般都利用正弦尺进行测量。根据正弦尺的测量原理可知,被测零件和正弦尺工作面接触之母线,应与正弦尺的端面垂直,否则将会产生测量误差。对于莫氏锥体0号、1号、2号及1∶50锥体塞规来说,这些零件细长,小端面直径很小,要想使被测零件放在理想位置上不太容易,因而往往产生测量误差,使测量值不太稳定。 Over the years, the taper values ​​of cone parts have generally been measured using sine scales. According to the measurement principle of sine ruler, it can be seen that the busbar that the measured part and the sine ruler face contact with should be perpendicular to the end face of the sine ruler, otherwise the measurement error will occur. For Morse Cone No. 0, No. 1, No. 2 and 1:50 cone Cypriot rules, these parts slender, small end face diameter is very small, in order to make the measured parts on the ideal position is not easy, Which often results in measurement error, so that the measured value is not very stable.