在切削加工中,经常要用镗床加工不同直径的孔。随着被加工孔直径的变化,因而需要千分尺的规格、数量也比较多,并且应用起来也较为麻烦。针对这个问题,我厂革新成功了一种可以代替十三个不同规格或更多普通千分尺的“镗工千分尺”(如图)。经过一年多来生产实践证明,精度高、使用方便,很受工人同志的欢迎,现将构造及使用方法介绍如下。 In the cutting process, often use boring machine processing different diameter holes. As the diameter of the hole to be machined varies, the micrometer size is required, the number is larger, and the application is troublesome. In response to this problem, I successfully renovated a plant that can replace thirteen different specifications or more ordinary micrometer “bore micrometer” (pictured). After more than a year of production practice has proved that high precision, easy to use, very popular with the workers comrades, now the structure and use of methods are described below.