| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tool capable of accurately measuring a distance from a reference point such as a machine datum point to a cutting edge even if the diameter of the cutting edge is narrow, and thus, precisely moving the cutting edge to the machining datum point which is a machining start point. <P>SOLUTION: On the tool 1 for machining a workpiece W, at a part displaced from the cutting edge 11 which is a machining part to a thicker root side, targets 12, 13 in recessed and protruded shapes for applying metering media Zy, Zx such as probes or electrodes for contact type metering, light for optical metering, or an acoustic wave for displacement type metering, and moreover, light necessary for optical magnification type stereopsis or optical image pickup are provided. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
