Abstract: The objective of the present invention is to implement highly accurate general automatic tool assignment with a sheet metal CAD/CAM system. Once CAD drawings are generated (S102), continuous line processing, product outer lines, window cut-out lines and the like are defined (S103) and then assigned tools (S210 through S286). Automatic tool assignment is finished with precedence for priority processing shapes such as simple shapes (arcs, triangles and the like) and shapes that can be punched out using a special tool (S210). A general automatic tool assignment process is then performed. With this process, tools are assigned by dividing each of arcs and oblique lines, which forms a processing shape unit, into shapes to which horizontally/vertically orthogonal lines are added (S250), converting the remaining shapes to rectangles, and assigning a tool to each of those rectangles (S280).

Abstract: The objective of the present invention is to implement highly accurate general automatic tool assignment with a sheet metal CAD/CAM system. Once CAD drawings are generated (S102), continuous line processing, product outer lines, window cut-out lines and the like are defined (S103) and then assigned tools (S210 through S286). Automatic tool assignment is finished with precedence for priority processing shapes such as simple shapes (arcs, triangles and the like) and shapes that can be punched out using a special tool (S210). A general automatic tool assignment process is then performed. With this process, tools are assigned by dividing each of arcs and oblique lines, which forms a processing shape unit, into shapes to which horizontally/vertically orthogonal lines are added (S250), converting the remaining shapes to rectangles, and assigning a tool to each of those rectangles (S280).

Abstract: A device that is able to sort and stack processed products according to their intended use, moreover is able to stack efficiently within a limited area and is able to simply produce control programs to affect such processes. Products which have completed a cut-out process by a work processing device are sorted and moved to predetermined positions by a sort stacking device. A product may be automatically picked from pre-processed work, and automatically placed in the sort area. A plurality of products are arranged by an auto-programming device. A produced processing/picking control program and the stacking time control program may be executed by a line controller. The work processing device and the sort stacking device may be simultaneously controlled.

Abstract: The method checks whether a punching tool interferes with a closed line to be processed. Conventionally, line segments of the closed line is arranged in a CAD system in the order of drawing sequence. In this method, however, the line segments are arranged in the line extending order. Specifically, prepared is an interference line retrieval file in which data on line segments constituting the closed line are arranged in the order the line segments continue. Then, based on the data in the interference line retrieval file, it is checked whether or not a tool positioned on an arbitrary line segment interferes with other line segments which extend from the arbitrary line segment in a predetermined range in both forward and reverse directions the closed line extends. The line segments that extend within a predetermined range before and behind the subject line segment can be quickly identified with an easy and simple calculation since the line segments are arranged in the line extending order.