在四爪卡盘上校正工件是一件既费时又麻烦的事情。然而,可以通过在卡盘端面上(靠近卡爪旁边)分别装置上钢皮刻度尺,这样就能够方便而又迅速地校正工件。制作方法如下:首先,使用千分表校正夹持在卡盘上的圆钢棒料(最好使用卡盘所能夹持的最小直径),然后把刻度尺固定在卡盘端面上,并使刻度尺的零点正好对准卡爪上的 Correcting workpieces on a four-jaw chuck is a time-consuming and troublesome task. However, it is possible to calibrate workpieces easily and quickly by installing scales on the chuck face (near the jaws) separately. The production method is as follows: First, use a dial indicator to calibrate the bar clamped on the chuck (the best use of the chuck can hold the smallest diameter), then the scale fixed to the chuck face, and The zero point of the scale is exactly aligned with the jaws