Control means for knee of metal cutting apparatus

摘要

A control assembly for the knee of a metal cutting apparatus which is substantially self-contained and which can be moved readily from one apparatus to another to provide a potential Z axis capability to a plurality of apparatuses with a single control assembly. The control assembly includes a lead screw removably secured at its upper end to the knee of the apparatus and extending downwardly for threaded engagement with a ball nut fixedly secured to the upper end of a sleeve journalled on a fixed hollow post. Drive means are secured to the sleeve to rotate the sleeve and nut and thereby displace the lead screw and knee vertically along the Z axis.