| 摘要 |
<p>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). <??>Once a non-executable NC program is generated through such tool assignment (S112), the NC program is optimized (S114), and an executable NC program is then output (S116). <IMAGE></p> |
