Patent ID: 6758797
Filing Date: 2004-07-06
Classification: B21D,Y10T

Abstract:
A method for mounting divided tools with desired lengths onto a tool holder on an upper table and a lower table of a press brake using a tool exchange device, comprising the steps of:(a) mounting first divided tools on the tool holder; (b) housing second divided tools in a tool housing section; (c) automatically, via a tool selection means, selecting divided tools from the first and second divided tools which constitute a tool station which has a total length corresponding to a bending length of the product; (d) displaying each selected divided tool on a screen together with a workpiece; (e) moving the divided tools which interfere with the workpiece to a non-interfering position; and (f) mounting the selected divided tools on the tool holder with the tool exchange device, wherein the step of selecting divided tools comprises: (g) the step of automatically calculating a quotient of a total length of the tool station divided by a length of a longest of the first and second divided tools divided tool as a number of the longest divided tools; and (h) arranging a combination of other shorter divided tools on a difference of the total length of the tool station and the total length of the longest divided tools.