对面键通常用于连接轴与齿轮、联轴节等各种机器零件,使二者配合在一起,以传递扭转力矩与运动。必要时配合零件之间还可以有轴向的相对移动,例如我厂生产的T618卧式镗床的主轴就是采用这种对面键的。本文介绍一种根据被测量对面键的外径,键槽宽,键槽深来设计的测量工具。这种测量工具,能够用来快而准地测量出外对面键槽中心错位和对中 The opposite key is usually used to connect shaft and gear, coupling and other machine parts, so that the two together to transfer torque and movement. When necessary with the parts can also have axial relative movement, for example, I plant the T618 horizontal boring machine spindle is the use of this opposite key. This article presents a measurement tool designed to measure the outer diameter, keyway width, and keyway depth of a facing key. This measurement tool can be used to quickly and accurately measure the outer center of the keyway misalignment and centering