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:
Apr. 09, 2019
Filed:
Mar. 21, 2013
Citizen Watch Co., Ltd., Tokyo, JP;
Citizen Machinery Co., Ltd., Nagano, JP;
Yasuhiro Kera, Saitama, JP;
Noriyuki Asahara, Saitama, JP;
Hiroshi Kasuya, Tokyo, JP;
Kyota Kotake, Saitama, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Citizen Machinery Co., Ltd., Nagano, JP;
Abstract
A machine tool includes a movement device, which has a first feed shaft and a second feed shaft that mutually intersect, and a plurality of tools, which are driven by the movement device and respective blade edges of which are staggered stepwise. The blade edges of the tools are aligned with the second axis due to the inclination of the tools as a unit. The machine tool is capable of executing center level adjustment of a plurality of tools mounted on a tool post against a workpiece having a larger diameter, and is also capable of reducing wasted time in non-cutting operation via equal stroke lengths of the tools.