我厂生产的产品中有一零件——声干涉管,材料为φ 16 × 0.5mm薄壁铜管,加工中要在管上打一排(7组20个)孔径不同的孔。由于零件精度较高,制作钻模很困难,不可能用一模多件来提高工效。这样,加工一件需停车换七次钻头,操作麻烦,工时消耗大。为了提高工效,降低成本,我们设计了钻头快换装置。钻头快换装置的原理是,将七个钻头安装在一转盘上,让转盘中心同台钻轴心保持定距 I plant a product that has a part - the sound of the interference tube, the material is φ 16 × 0.5mm thin-walled copper tube, the processing to be hit in the tube on a row (7 groups of 20) holes of different pore sizes. Due to the high precision parts, the production of drilling is very difficult, it is impossible to use more than one piece to improve work efficiency. In this way, the processing of a need to stop for seven drill bits, the operation is cumbersome, time consuming. In order to improve work efficiency, reduce costs, we designed a bit quick change device. The principle of the drill quick changer is that the seven drill bits are mounted on a turntable, so that the center of the turntable keeps the distance from the center of the turret