一、概况根据在我厂瓶咀生产中,厂部生产纲领——瓶咀生产工艺要求以及各种锥线圆弧连接的回转体的特殊工件生产的需要,我们采用 TP801将我厂一台牡丹江机床厂1971年出产的待报废的 C620-1车床进行改造。改造后的机床具备车削端面、内外圆、切槽、任意锥面、球面、公英制罗纹,公英制锥罗纹的功能。使‘瓶咀’的合格率由85％提高到100％,原材料消耗 I. Overview According to the production requirements of our factory, our Tsui Tsui Tsui Tsui, the company’s production program - bottle Tsui production process requirements and a variety of cones and arcs connected to the revolution of the special workpiece production needs, we use TP801 to our factory a Mudanjiang The C620-1 lathe to be scrapped was rebuilt by the machine tool factory in 1971. The machine after the transformation has the functions of turning face, inner and outer circles, grooving, any cone surface, spherical surface, male and female ribbing, and metric cone ribbing. Increase the pass rate of ‘bottle’ from 85% to 100%, raw material consumption