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在V形架上测量圆度误差,主要优点是可以达到很高精度,而设备简单,容易实现,且不受工件尺寸与重量的限制,所以有重要的实用价值。测量的方法可以有许多种,本文着重介绍两点—三点法和四点法,前者为ISO推荐,后者为我国首创。同时也扼要介绍传统上普遍采用的三点法,以供比较。
The main advantage of measuring the roundness error on the V-frame is that it achieves very high accuracy, and the equipment is simple and easy to implement, and is not subject to the size and weight limitations of the workpiece, so it has important practical value. There are many ways to measure. This article focuses on two points - the three-point method and the four-point method. The former is recommended by ISO and the latter is the first in our country. It also outlines the three-point method traditionally used for comparison purposes.