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为了解决我国O形橡胶圈测量工具的不足,为O形橡胶圈提供简便的测量工具,广州机床研究所研制成功三种测量工具,其中量程可达φ45～500毫米的吉山OLH—Ⅱ型回转式O形圈直径测量仪,读数精度为0.02毫米,重复性标准误差0.02毫米,测量标准位误差0.04毫米,可作φ50毫米以下小规格测量的吉山OLZ—Ⅱ型O形圈直径测量锥捧,刻线精度0.1毫米,重复性误差不大于0.01毫米,测量误差不大于±0.02毫米以及可作轴向及径向测量的吉山OLB型O形圈截面测量百分表,其读数精度0.01毫米,重复性误差不大于±0.01毫米,测量误差不大于±0.025毫米。一九七八年三月,在广州由广东省一机局组织对上述测量工具的鉴定,参加鉴定的有:国家标准计量局、一机部计划局、矿山局、石化部橡胶组、石化部石油化工科学研究院、一机部标准化所、上海机电设计院、北京橡胶工业研究所、西北橡胶研究所、铁岭橡胶工业研究所、一机部机械院自动化研究所、广州机床研究所等45个单位,共58名代表。与会代表一致认为:这三种测量工具结构简单、精度可靠,能满足O形橡胶圈的大小不同规格的内径和断面直径的测量,特别是解决了大(万)工镜不能测量大规格产品的问题,为O形橡胶圈提供了切实可行的测量工具,可以推广使用。现将这三种测量工具与测量方法介绍给读者,以供参考。
In order to solve the shortcomings of our country O-ring rubber measuring tools for the O-ring rubber provides a simple measurement tools, Guangzhou Institute of Machine Tool developed three kinds of successful measurement tools, of which the range up to φ45 ~ 500 mm of the Jishan OLH-Ⅱ type rotary O-ring diameter measuring instrument, the reading accuracy of 0.02 mm, repeatability standard error of 0.02 mm, the standard error of 0.04 mm measurement, can be used for φ50 mm small size measurement of the Jishan OLZ-Ⅱ O-ring cone diameter cone Line accuracy of 0.1 mm, repeatability error of not more than 0.01 mm, measurement error is not greater than ± 0.02 mm and can be used for axial and radial measurement of Ji-Shan OLB O-ring cross-section measurement dial indicator, the reading accuracy of 0.01 mm, repeatability The error is not greater than ± 0.01 mm, measurement error is not greater than ± 0.025 mm. In March 1978, Guangdong Province, a bureau in Guangzhou organized by the Bureau of the above-mentioned measurement tools for identification, to participate in the appraisal are: National Bureau of Standards and Metrology, a Bureau of Planning Bureau, Bureau of Mines, the Ministry of Petrochemical Rubber Group, the Ministry of Petrochemical Institute of Petrochemical Technology, a standardization of the Ministry of Machine Building, Shanghai Mechanical and Electrical Design Institute, Beijing Institute of Rubber Industry, Northwest Institute of Rubber, Tieling Rubber Industry Institute, a machine Institute of Automation Institute, Guangzhou Machine Tool Institute 45 Unit, a total of 58 representatives. The delegates agreed that the three measuring tools are simple in structure and reliable in accuracy and can meet the requirements of measuring the inner diameter and the cross-sectional diameter of different sizes of O-rings. In particular, they can not measure the large-sized products The problem, for the O-shaped rubber ring provides a practical measurement tools that can be used to promote. Now these three measurement tools and measurement methods introduced to readers for reference.