Lathe, in particular multi-spindle automatic lathe

摘要

The multi-spindle automatic lathe (10) has an apparatus for machining the rear side of a workpiece (15). For this, it is provided with a transfer device (21) for removing a workpiece machined at its front side from a primary workpiece spindle (15) of the machine and for transferring the workpiece to a machining station (22) for the rear side machining, whereby the transfer device comprises a gripper (23) as well as a translation device (24) moveable parallel or coaxially to the workpiece spindle (14) between this and a rear wall (19) of the machining chamber, which translation device takes up the workpiece from the gripper for transfer to the machining station for the rear side machining. So as to avoid collision of the tools for the front and rear side machining or their actuation carriage and to execute the machining at the rear side of the workpieces largely independently from the front side machining, the machining station (22) for the rear side machining is located outside the machining chamber (16) for the front side machining and comprises a secondary workpiece reception (29) which can be moved axially between the translation device (24) and a work position for the rear side machining.