批量加工轴类工件拆换中心钻、顶尖比较麻烦,我们制作了快换中心钻夹具,提高了效率。腰形板1和3与顶尖2外套配合,中间由螺栓8连接定位。板1、3镶有紫铜套9,用于安装导柱7,其一端装有翻板6。中心钻就装在带有锥度定位孔中。板3装有上、下限位块4、5。操作时向卡盘方向扳动手柄, Axis processing center axis workpiece swap center drill, the top is too much trouble, we made a quick change center drilling fixture, improve efficiency. Lugs 1 and 3 with the top 2 jacket with the middle by the bolt 8 positioning. The plates 1, 3 are fitted with a copper sleeve 9 for mounting the guide posts 7, with a flap 6 at one end. The center drill is mounted in a hole with a taper. Board 3 is equipped with upper and lower limit block 4,5. When operating the handle to the direction of the chuck,