Patent ID: 6854311
Filing Date: 2005-02-15
Classification: B21D

Abstract:
1. A bending machine for the bending of tubes, rods and bars ( 24 , 24 a ), comprising a machine base unit ( 2 ); a collet ( 6 ) supported thereon for mounting a workpiece; a tool assembly ( 15 , 15 a , 15 b , 15 c , 15 d ) with at least one bending tool ( 20 ; 40 , 60 ; 80 , 100 ; 40 a , 60 a ), said bending tool ( 20 ; 40 , 60 ; 80 , 100 , 40 a , 60 a ) opening and closing in the transverse direction of the workpiece by the relative movement of tool components ( 21 , 25 ; 41 , 45 ; 61 , 65 ; 81 , 85 ; 101 , 105 ) to form at least one workpiece holder ( 23 , 26 ; 43 , 46 ; 63 , 66 ; 83 , 86 ; 103 , 106 ); and a swivel support ( 10 ) mounted on the machine base unit ( 2 ) for rotation around a swivel support axis of rotation (ii) extending in the longitudinal direction ( 12 ) of the workpiece, said tool assembly ( 15 , 15 a , 15 b , 15 c , 15 d ) being supported on the swivel support ( 10 ) for rotation around a tool axis of rotation ( 16 ) extending in the longitudinal direction ( 12 ) of the workpiece, said swivel support axis of rotation ( 11 ) and the tool axis of rotation ( 16 ) being radially offset relative to one another and said tool axis of rotation ( 16 ) and the workpiece holder ( 23 , 26 ; 43 , 46 ; 63 , 66 ; 83 , 86 ; 103 , 106 ), being radially offset relative to one another, rotation of the tool assembly ( 15 , 15 a , 15 b , 15 c , 15 d ) around the tool axis of rotation ( 16 ) and rotation of the swivel support ( 10 ) around the swivel support axis of rotation ( 11 ), moves a bending tool ( 20 , 40 , 60 , 80 , 100 , 40 a , 60 a ) into a workpiece pickup position for accepting a workpiece to be processed and/or into a workpiece transfer position for delivering a processed workpiece.