| 摘要 |
The machine comprises two prisms (9, 10) having a vertical axis and a polygonal cross-section with lateral faces which support respective half-dies co-operating with one another in twos to bend, draw, punch or otherwise process a band of sheet metal placed between them. Means (13, 14) are provided for causing the rotation of said prisms (9, 10) with respect to their vertical axes for the positioning of the half-dies in respective operating positions opposite to one another and means (15, 16) for causing said prisms (9, 10) to move reciprocally closer and further away in a vertical plane comprising said axes. There are further provided means (109-124) for causing a further limited rotation of one (10) of the two prisms after said operating position has been reached and during a bending operation of the band of sheet metal. There is associated a manipulator (18) provided with a replaceable grasping clamp (36) suitable for vertically supporting from above a band of sheet metal and provided with the possibility of movement along a first horizontal axis passing between the above prisms (9, 10) and perpendicular to said vertical plane of movement of the prisms, along a second horizontal axis perpendicular to the former and along and on a vertical axis of rotation (37). There is lastly provided a clamp magazine (19) accessible by the manipulator (18) for the replacement of said clamp (36) between one process and the other. <IMAGE> |
