MACHINE TOOL

摘要

The invention relates to a machine tool as well as to a method for operating the machine tool. The machine tool comprises a workpiece carrier (20) that can be incrementally rotated about an incremental advance axis (22) and has several carrier sides (25). A first workpiece chuck unit (26) for holding a workpiece in a first position (P1) and a second workpiece chuck unit (27) for holding a workpiece in a second position (P2) are arranged on each carrier side (25). In each angular position or incremental advance position of the workpiece carrier (20), one carrier side (25) is in a loading station (30), one carrier side (25) is in an unloading station 31, and the respectively other carrier sides (25) are in respectively one work station (32). A workpiece changing device (34) is provided, said device moving a partially machined workpiece (16a) out of the first position (P1) in the unloading station (31) into the second position (P2) in the loading station. The position change of the partially machined workpiece (16a) preferably also takes place during the incremental advance movement of the workpiece carrier (20). Preferably, the partially machined workpiece (16a) can be turned in doing so.

主权项

1. Machine tool (10),
comprising a workpiece carrier (20) that is supported so as to be rotatable about a vertical incremental advance axis (22) that can be incrementally rotated forward by an indexing drive (21) in steps by respectively one increment angle (a) between successive angular positions, the workpiece carrier (20) has several carrier sides (25), in which case a first workpiece chuck unit (26) and a second workpiece chuck unit (27) for mounting respectively one workpiece (16) are arranged on each carrier side (25), and in which case the first workpiece chuck unit (26) for holding a workpiece (16) in a first position (P1) and the second workpiece chuck unit (27) for holding a workpiece (16) in a second position (P2); a loading station (30) for insertion of a workpiece blank (16a) in the first workpiece chuck unit (26) that is located in the current angular position of the workpiece carrier (20) in the loading station (30); an unloading station (31) for removing a finished, machined workpiece (16b) from the second workpiece chuck unit (27) that is located in the current angular position of the workpiece carrier (20) in the unloading station (31); a workpiece changing device (34) that is disposed to bring a partially machined workpiece (16a) located in the one position (P1) of the unloading station (31) into the respectively other position (P2) on this carrier side (25); several work stations (32) between the loading station (30) and the unloading station (31), in which case each work station (32) is associated with at least one machining unit (40) and/or measuring unit and/or verification unit for at least one of the two workpieces (16), in which case the at least one unit (40) is arranged laterally and/or above the workpiece chuck unit (26, 27) located in the work station (32).