| 摘要 |
PCT No. PCT/EP90/01446 Sec. 371 Date Mar. 25, 1992 Sec. 102(e) Date Mar. 25, 1992 PCT Filed Aug. 30, 1990 PCT Pub. No. WO91/06383 PCT Pub. Date May 16, 1991.A swivel bending machine (10) for a metal sheet (4) in which a first driving unit (12) is adapted to move upper (2) and lower (1) jaws relative to each other to clamp the metal sheet (4) therebetween with a section (5) of the metal sheet protruding beyond the first and second jaws and in which a bending jaw (3) having two endfaces is mounted on the machine frame for rotation around a stationary swivel axis (S) is driven by a second driving unit to engage the protruding section (5) of the metal sheet (4) to bend the section (5) upon rotation of the metal sheet and wherein at each of the two endfaces of the bending jaw (3) a first supporting element in the form of a swing arm (14) for the bending jaw (3) is provided between said bending jaw (3) and the machine frame (11), said swing arm (14) being adapted to be swivelled about said swivel axis (S) of the bending jaw (3) by said second driving unit (13), a second supporting element (16) for the bending jaw (3) is mounted movably on said swing arm (14) and being movable by a third driving unit (22) relatively to the swing arm in a predetermined direction (E); the bending jaw (3) is supported and guided in a straight-line configuration on said second supporting element (16) and driven by a fourth driving unit (18) in an adjusting direction (I, C) perpendicular to said swivel axis (S); and the direction (E), in which the second supporting element (16) is movable relatively to said swing arm (14), extends perpendicular to a plane being defined by said swivel axis (S) and said straight-line adjusting direction (I, C) of the bending jaw (3).
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