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. 07, 2020
Filed:
Aug. 02, 2018
Applicant:
Dmg Mori Seiki Co., Ltd., Nara, JP;
Inventor:
Satoshi Miyamoto, Nara, JP;
Assignee:
DMG MORI CO., LTD., Nara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q 3/157 (2006.01); B23Q 3/155 (2006.01); B23Q 17/00 (2006.01);
U.S. Cl.
CPC ...
B23Q 3/15713 (2013.01); B23Q 3/1574 (2013.01); B23Q 3/15503 (2016.11); B23Q 17/002 (2013.01); B23Q 2003/155428 (2016.11); B23Q 2003/155439 (2016.11); Y10T 483/13 (2015.01); Y10T 483/1755 (2015.01);
Abstract
A machine tool includes a rotatable spindle, a spindle drive, a tool magazine, a tool changer including a rotating shaft, a rotating shaft drive motor, an angular position detector, a tool change arm having gripping units at both ends, and a controller. After interchanging a first tool mounted on the spindle and a second tool held in a tool pot, when rotating the tool change arm to an intermediate position, rotation of the spindle is started as soon as the second tool mounted on the spindle and the gripping unit are out of contact with each other.