the lathe to numerical control computer with characteristic of displacement at double speed in the axis of spindle

摘要

A computer-controlled turning machine has shortened feed times between tool and work table in the spindle direction. The machine has the following features: - a machine bed with a spindle axis direction extending longitudinally plus one extending in the width direction at right angles to this; - a threaded spindle with two sections of thread in opposite directions, namely a positive threaded section and a counter-thread section, the threaded spindle being rotatable on the machine bed and extending in the direction of the spindle axis; - a work table arrangement that is accommodated on the machine bed and movable back and forth in the longitudinal direction of the spindle axis device; and - a tool holder arrangement.