| 摘要 |
Bending presses equipped with the tool arrangement permit sheet blanks or metal plating to be bent in series in accordance with predetermined programs without having to perform time consuming tool exchange operations after each single operative or working step. The tool arrangement comprises a first tool and a second two-piece auxiliary tool. Both parts of the auxiliary second tool are subdivided into segments as is the case also for the first tool and the tool holding fixture or support and are supported at a hydraulic cushion. The segmental matching design of the tool holding fixture, the first tool, the auxiliary second tool and the bottom dies additionally enables the two types of tools and their associated bottom dies to be simultaneously controllably directed into a respective operative position over part of the length of the bending press. Thus, in certain cases at least two pieces of sheet metal, the width of which, when arranged in juxtaposition, is less than the total width of the bending press, can be simultaneously and differently bent using the same working stroke. It is also possible to work at two or more stations in series.
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