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:
Jul. 03, 2007
Filed:
Jul. 15, 2004
Kazuyuki Hiramoto, Yamatokoriyama, JP;
Akihiro Mochizuki, Yamatokoriyama, JP;
Shunsuke Nakazawa, Yamatokoriyama, JP;
Satoshi Matsui, Yamatokoriyama, JP;
Kazuyuki Hiramoto, Yamatokoriyama, JP;
Akihiro Mochizuki, Yamatokoriyama, JP;
Shunsuke Nakazawa, Yamatokoriyama, JP;
Satoshi Matsui, Yamatokoriyama, JP;
Mori Seiki Co., Ltd., Yamatokoriyama-shi, JP;
Abstract
The present invention provides a machine tool capable of reducing residual vibration occurring at the location time, thereby achieving responsiveness to a recent demand for higher acceleration/deceleration speed. The machine tool is configured such that a columnis fixed on a bed, a spindle headfor supporting a spindleis disposed on a front face' of the columnto be movable in a Z-axis direction, and a pair of right and left Z-axis ball screws (spindle drive shafts)for driving the vicinity of the gravity center of the spindle headis disposed on the front face′ of the columnto be symmetrical to each other with respect to a plane that includes an axis C of the spindle headand is parallel to a Y axis, thereby driving the vicinity of the gravity center of the spindle head