Automatic numerically controlled lathe has an attachment in the driven tool holder turret which machines spherical surfaces under numerical control

摘要

The spherical surface cutter for a numerically controlled machine tool has a normal tool holder (3) on a turret (2) which carries the spherical cutting attachment (4). The spherical cutter revolves on an axis (6) perpendicular to the main axis (5) and is driven about the work by a toothed belt without resetting the work. Claims include a method of programming the spherical cutter