对轴类零件,键槽宽度与轴中心线对称度误差的测量,一般是比较麻烦的。我们将一下卡脚折断而报废的游标卡尺改制后(图1)用于检测键槽的对称度,收到了较好的效果。改制后的游标卡尺使用方便,测检迅速,除测量键槽对称度外,还保留了游标卡尺的其它一些使用功能。 Axis parts, keyway width and shaft centerline symmetry error measurement is generally more troublesome. We will look at the card broken snapped caliper after the restructuring (Figure 1) is used to detect the keyway symmetry, received a good result. After the restructuring of the vernier caliper easy to use, rapid test, in addition to measuring the keyway symmetry, but also retains the Vernier caliper some of the other use of functions.