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. 04, 2019
Filed:
Sep. 05, 2016
Dmg Mori Co., Ltd., Nara, JP;
Koji Fujimoto, Nara, JP;
Tatsuhiko Kuriya, Nara, JP;
DMG MORI CO., LTD., Nara, JP;
Abstract
This invention provides a machine tool capable of easily and quickly attaching/detaching a tool holder while reliably holding the tool holder, including at least two clamp holes () that receive pins () extending through at least two through holes () provided in a tool holder (), at least two tubular clamp sleeves () fitted in the at least two clamp holes (), respectively, and each including a flexible trunk portion (), a fluid encapsulating chamber that encapsulates a fluid, a channel extended from the fluid encapsulating chamber to an outer peripheral surface of the flexible trunk portion, and a pressure adjusting portion that adjusts a pressure of the fluid in the fluid encapsulating chamber, wherein a clamp fastening force is made to act on the pins () in synchronism with an increase or a decrease in the fluid pressure in the fluid encapsulating chamber.