在铣床上加工图1工件的齿部时,如用一般接长套装夹工件,会造成同轴度超差。若用普通弹簧夹头装夹,则外套与刀具干涉。为此,我们设计了一种用于三爪卡盘上的自胀式定心夹套,既解决了刀具与卡爪相碰的矛盾,又提高了定位精度。 Machining the tooth in Figure 1 workpiece milling machine, such as the general length of the folder with the workpiece, will result in coaxial tolerance. If the ordinary spring chuck folder, the coat and the tool interference. For this reason, we designed a self-expanding centering collet for the three-jaw chuck, which not only solved the contradiction between the tool and the claw, but also improved the positioning accuracy.