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.

Date of Patent:
Feb. 14, 2012

Filed:

Aug. 01, 2008
Applicants:

Hiroshi Yasuda, Nara, JP;

Hiroto Matsushita, Nara, JP;

Inventors:

Hiroshi Yasuda, Nara, JP;

Hiroto Matsushita, Nara, JP;

Assignee:

Mori Seiki Co., Ltd., Yamatokoriyama-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 3/157 (2006.01); B23Q 3/155 (2006.01); B23Q 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tool changing unit moves between a magazine position and a changing position to transfer a tool. A machine tool has a plurality of tool changing positions. One of the tool changing positions is selected in advance for changing the tools next time. The tool changing unit and the tool mounted on a tool spindle move to the selected changing position for changing the tools in the selected changing position. Accordingly, the tool changing unit and the tool spindle move respective short distances for changing the tools, thereby shortening the non-machining time of a machine tool combined with the automatic tool changer.


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