NUMERICAL CONTROL DATA ORIGINATING DEVICE, NUMERICAL CONTROL DATA ORIGINATING METHOD AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To enable an operator to confirm an unmachined part by providing a movable area computing means for computing a tool movable area in the case of using a tool with an assigned tool diameter for machining a machined area. SOLUTION: In determining a tool to be used, a CPU 1 of this numerical control data originating device fetches a machined area from the graphic data of a workpiece originated by CAD stored in a storage device 8, assigns the diameter of the tool used for machining the machined area, and computes a tool movable area in the case of using the tool for machining the machined area. The tool movable area can thereby be computed. In assigning the diameter of the tool used for machining the machined area, the CPU 1 fetches the diameter of a previously judged tool used for machining the machined area from a tool table of a ROM 6. The tool diameter can thereby be automatically assigned. The CPU 1 displays the tool movable area on a display part 3. An operator can thereby confirm the tool movable area.