The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Jul. 25, 2011
Yoshikatsu Sato, Minato-ku, JP;
Yoshikatsu Sato, Minato-ku, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A touch probe is attached to a main shaft, and the position (Pp) of a tip with the probe in an on state and the position (Pp) of the tip with the probe in an off state, when the end of the main shaft is positioned at a prescribed position (Ps), are optically measured. The dead zone length of the probe is calculated based on the positions (Pp, Pp), and the apparent length of the probe is calculated based on the positions (Ps, Pp). After the substantive length of the probe has been calculated by adding the dead zone length to the apparent length, the probe derives the actual length of a workpiece, and a tool is then attached to the main shaft, the position (Pt) of the tip of the tool is optically measured and the actual length of the tool is calculated.