US Patent 7309306 Machine tool

A machine tool comprises a main body having a plurality of parts and an NC apparatus connected to the main body. The NC apparatus includes a display means for displaying a part information about the plurality of parts constituting the main body, a memory means for memorizing the part information, and a control means for controlling the display means and the memory means. The part information includes the ID number, names, types and attachment positions of the parts. The control means displays either the ID numbers and the attachment positions of the parts or the ID numbers, the names, and the types of the parts on the display means selectively.