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:
Dec. 20, 2016
Filed:
Oct. 31, 2012
Fuji Machine Mfg. Co., Ltd., Chiryu-shi, JP;
Shigefumi Suzuyama, Toyota, JP;
Jun Yanagisaki, Toyota, JP;
Yasusi Suenami, Nagoya, JP;
Kenji Mizuta, Miyoshi, JP;
Osamu Nagai, Nagoya, JP;
Shinichi Yamamoto, Nisshin, JP;
Naohisa Ito, Toyoake, JP;
FUJI MACHINE MFG. CO., LTD., Chiryu-shi, JP;
Abstract
A workpiece machining apparatus including a headstock to which a workpiece having a through-hole extending in a Z-axis direction is attached; a tool rest which is movable in the Z-axis direction and in an X-axis direction; and a rotary tool unit which is attached to the tool rest, is provided. The headstock has a support member which is movable in the Z-axis direction and which has a spindle side contact portion in an end portion in the Z-axis direction. The rotary tool unit has a tool body having a tool side contact portion with which the spindle side contact portion can come into contact in the Z-axis direction, and a rotatable tool which protrudes from the tool body. The rotating tool machines the workpiece by moving the tool body in the Z-axis direction in a state where the spindle side contact portion and the tool side contact portion are brought into contact with each other.