PROCESSING INSPECTION WORKPIECE FOR MACHINE TOOL AND ON MACHINE MEASUREMENT METHOD USING SAID WORKPIECE

摘要

Provided is a processing inspection workpiece for a machine tool with which it is possible to inspect tool precision by subjecting the machine tool to on-machine measurement. Also provided is an on-machine measurement method using said workpiece. In a processing inspection workpiece (10), five surfaces, excluding a hexahedron bottom surface, function as processing surfaces (11-15), and multiple reference surfaces (11a-11d, 12a-12c, 13a-13c, 14a-14c, and 15a-15c), which are in the same direction as the respective processing surfaces (11-15) and for which multiple in-plane coordinates are already known, are disposed on each processing surface (11-15). A machine tool is subjected to on-machine measurement using said processing inspection workpiece (10).