内螺纹中径测量的简便方法

根据多年的工作经验和实践经验,总结出一种简便的内螺纹中径测量方法。此方法无需计算标准尺寸,无需组量块,只需选用一块合适的量块代替标准尺寸,就可以进行测量。然后,根据不同规格内螺纹中径的修正值,求出其测量结果。该方法可免去组合量块带来的系统误差,精度比传统的测量方法有所提高,并且简便、快速、成本低,提高了工作效率。

A Simple Method to Measuring Pitch Diametre of Internal Thread

Hence, a simple and convenient measure method is summed up according to working and practice experience for years. Working out standard size or combining Gage block are not needed by this method, only a suitable gage block is necessary, instead of standard size to measure. Then the measuring result is determined in accordance with modifica- tion values of different format internal threads. This method can avoid systemic error by Gage block combination, and improve the precision, compared with the traditional measurement method. Moreover,it is convenient,fast,low-cost and high efficient.