公开(公告)号：US3582622A

公开(公告)日：1971-06-01

申请号：US3582622D

申请日：1968-02-26

申请人： TOKYO SHIBAURA ELECTRIC CO

发明人： OKUDA NOBUO

IPC分类号： G05B19/416 ,  G06F7/66 ,  G06F15/46 ,  G05B19/18

CPC分类号： G06F7/66 ,  G05B19/416 ,  G05B2219/34041

摘要： Time pulses to be applied to a digital differential analyzer are intermittently eliminated by a gate circuit controlled by a reset input of a flip-flop circuit. The reset terminal of the flip-flop circuit receives speed control pulses corresponding to a predetermined machining speed and the set terminal thereof receives an output from an integrator having a register with contents in accordance with a machining distance of a machine tool. As an integral output corresponding to said register contents is obtained from the integrator, the clock pulses can be intermittently eliminated in a manner inversely proportional to the machining distance, thus providing a constant machining speed.