我厂在大批量生产套管接箍的过程中,由于内螺纹锥度测检困难,螺纹精度很难保证,因而使得接箍与套管螺纹不能有效地吻合,并且静水压试验还产生泄漏等现象。为了提高产品质量,针对以上问题,我们制造了一种简易圆锥内螺纹量规(以下简称量规)。这种量规,结构简单、制造较易、测量范围广、测量精度高、使用方便、在生产实践中,有效地降低了废品率,提高了生产效率,收到了良好的经济效果。量规如图所示,它由百分表1,测量触头2等组成,表 I plant in the process of mass production of casing coupling, due to difficult to detect the thread taper, thread accuracy is difficult to guarantee, thus making the collar and the casing thread can not effectively match, and hydrostatic test also produce leakage, etc. phenomenon. In order to improve product quality, in view of the above problems, we have created a simple cone taper gauge (hereinafter referred to as gauge). The gauge has the advantages of simple structure, easy manufacture, wide measuring range, high measuring precision and convenient use. In the production practice, the reject rate is effectively reduced, the production efficiency is improved, and the good economic effect is received. Gauge as shown, it consists of a dial indicator 1, measuring contacts 2 and other components, the table