METHOD OF AND APPARATUS FOR WORKPIECE LOADING AND UNLOADING IN LATHE

摘要

In a lathe of a type employing a movable main spindle, the main spindle (2) is moved in a leftward and rightward direction (Y-axis direction ) perpendicular to the longitudinal axis of the main spindle (2) after a workpiece (W) has been machined, and during the movement of the main spindle (2), the machined workpiece (W) is unloaded from the main spindle (2). At a position to which the main spindle (2) has further been moved, another workpiece (W) to be subsequently machined is loaded on. the main spindle (2). The unloading of t he machined workpiece (W) is carried out by a method in which the machined workpiece (W) is ejected by a workpiece eject means (7) built in a chuck (2a ) in the main spindle (2).