我厂在生产ф520mm放风阀和ф250mm冷风阀时,其阀壳密封槽或圆弧槽的加工非常困难。为此,我们设计了不停车可进给的刀杆(附图),解决了这两种产品的加工问题。使用时,先将孔加工到尺寸,然后安装上此刀杆,摇动主轴手柄,当进到密封槽(或圆弧槽)的位置时,对好刀开车,转速≤30r/min为好。转动手柄11,推进螺母12向前,推动挡块8,带动推进顶杆5,推进顶杆5前端 I plant in the production ф520mm valve and ф250mm ф250mm cold air valve, the valve housing seal groove or arc groove processing is very difficult. To this end, we designed a non-stop feedable arbor (with photos) that solved the machining problems of both products. Use, the first hole to the size, and then install the arbor, shaking the spindle handle, when into the seal groove (or arc slot) position, the good knife driving, speed ≤ 30r / min as well. Rotate the handle 11, advance the nut 12 forward, push the stopper 8, drive the push rod 5, push the front end of the rod 5