论文部分内容阅读
前言万能测长仪重要的特点之一是能测量内螺纹的中径。本文介绍一种新的测量方法。即直接用球形测头测量内螺纹中径。以往传统的测量方法是用缺口角规搭出内螺纹的中径作比较测量。由于缺口角规的制造精度高、工艺复杂,工时长,具体使用也比较麻烦。为了改进测量方法,上海第二光学仪器厂邀请上海市计量局参加,对直接用球形测头测量内螺纹中径从测量原理到具体测试方法作了分析和试验,试验结果表明和理论计
Introduction One of the important features of the Universal Length Gauge is the ability to measure the diameter of the female thread. This article describes a new measurement method. That is directly measuring the diameter of the female thread with a spherical probe. In the past the traditional measurement method is to take the gap angle gauge to take out the diameter of the internal thread for comparative measurement. As a result of the gap gauge precision manufacturing, complex technology, long working hours, the specific use is also more troublesome. In order to improve the measurement method, Shanghai No.2 Optical Instrument Factory invited Shanghai Bureau of Metrology to participate in. The measurement and measurement of inner diameter of straight thread from spherical head to measurement method were analyzed and tested. The results show that