Press for bending flat workpieces comprises a table that can be rotated about a pivot by a drive unit that moves the pivot vertically at one speed and moves the table vertically at twice the speed

摘要

Press for bending flat workpieces comprises a frame, a die (2) supported by the frame, a ram that can be moved up and down above the die, a table (5) for supporting the workpiece, and a drive unit for rotating the table about a pivot (6) parallel to the die. The drive unit moves the pivot vertically at a speed S1 and, at an adjustable engagement point (P1) distant from the pivot, moves the table vertically at a speed that is twice S1.