| 摘要 |
A bending machine comprises a lower die 21F or 21R for supporting a sheet metal workpiece, an upper die 41F or 41R for gripping the workpiece by pressing the same against the lower die, the upper die being mounted on a lower part of a vertically movable ram 27, a vertically movable bending beam 47F or 47R for upwardly bending one edge of a workpiece gripped between the upper and lower dies, and a tapered guide member 111F or 111R mounted on the ram for guiding the bending beam towards the upper die during a bending stroke. The machine can bend both edges of sheet metal in two stages by the sets of dies, rams and guide members. The guide members are adjustable by means 115. The upper dies can be supplied from elevator- supported storage racks having a plurality of stages. Any desired combination of upper die elements can be transferred from the racks to form an upper die 41F or 41R to suit the width of sheet metal. <IMAGE> |
