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. 12, 2012
Filed:
Jul. 13, 2011
Kouichi Katoh, Numazu, JP;
Takamasa Itoh, Shimizu-cho, JP;
Tsuyoshi Fujita, Inazawa, JP;
Masaru Usui, Gifu, JP;
Kouichi Katoh, Numazu, JP;
Takamasa Itoh, Shimizu-cho, JP;
Tsuyoshi Fujita, Inazawa, JP;
Masaru Usui, Gifu, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo-To, JP;
Abstract
A method for machining a slide core hole in a mold and a measurement/correction system for use in machining of a slide core hole. A spindle head is pivoted to meet the inclination angle of the slide core hole to be machined in the mold. A shallow flat-bottomed spot-faced hole is spot-faced in the surface of the mold. A guide hole is drilled in the bottom surface of the spot-faced hole. A rod hole is drilled using the guide hole as a guide. An intermediate pocket hole is formed while expanding the spot-faced hole. A reference point is corrected based on measurement of the shape of the intermediate pocket. A corrected machining program is executed with the corrected reference point to carry out precision shaping machining of the core pocket while expanding the intermediate pocket.