我厂生产的NJ 130汽车变压器壳体的两端面需加工螺孔,如图1所示。为了充分利用现有设备,我们将 Z 512台钻改装成了简易攻丝机,改装方法简单,制造容易,操作方便,而且生产效率高,使用效果较好。 改装后的结构如图2所示。主要是在台钻基础上增加了一个摇臂1,即把台钻的原主轴装在 I plant the NJ 130 automobile transformer housing to be processed at both ends of the screw holes, as shown in Figure 1. In order to make full use of the existing equipment, we converted the Z 512 bench drill into a simple tapping machine. The conversion method is simple, easy to manufacture, easy to operate, and the production efficiency is high and the use effect is better. The modified structure shown in Figure 2. Mainly on the basis of bench drill added a rocker arm 1, that is, the original spindle installed in the drill