Patent ID: 8220788

Claim:
A machine tool ( 1 ), having a spindle revolving around a spindle axis oriented along a vertical direction (Z), said spindle including an adjustable chuck ( 1 a ) configured to receive a piece to be worked ( 3 a , 3 b ), said machine tool further including a rotatable transport device ( 2 ) positioned essentially perpendicular to said vertical direction (Z) and having a plurality of work piece deposit areas ( 2 b , 2 b 1 , 2 b 2 ) configured for holding, releasing and depositing one or more pieces to be worked by said machine tool ( 3 a , 3 b ) to said adjustable chuck ( 1 a ) of said spindle, whereby the transport device ( 2 ) is configured such that each of the plurality of deposit areas ( 2 b , 2 b 1 , 2 b 2 ) may be rotatably moved into a transfer position (U) for presentation to the adjustable chuck ( 1 a ) of a first one of said one or more pieces to be worked in order that said adjustable chuck may accept said first piece to be worked ( 3 a ) from a first deposit area ( 2 b ) into the adjustable chuck ( 1 a ), and wherein said adjustable chuck ( 1 a ) includes a mechanism for releasably attaching the first piece to be worked ( 3 a ) from the adjustable chuck ( 1 a ) and to deposit the first piece to be worked ( 3 a ) onto a second deposit area ( 2 b 1 ), whereby an orientation device ( 2 a ) is provided that is configured to orient the first piece to be worked ( 3 a ) in the first deposit area ( 2 b ) prior to said adjustable chuck ( 1 a ) accepting each said one or pieces to be worked such that each said one or more pieces to be worked may be received by the adjustable chuck ( 1 a ) in the transfer position (U), characterized in that the orientation device ( 2 a ) is so positioned and configured that the orientation of each of said one or more pieces to be worked ( 3 a ) by means of the orientation device ( 2 a ) occurs in an orientation position (A) located prior to the transfer position (U) along a transport direction (R) of the transport device ( 2 ), such that the orientation device ( 2 a ) includes a mechanism having linear movement in which orients and releases the each said one or more pieces to be worked ( 3 a ) before it reaches the transfer position (U).