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:
Sep. 02, 1997
Filed:
Apr. 21, 1995
Chiron-Werke GmbH & Co. KG, , DE;
Abstract
A machine tool comprises a headstock (12) having a rotatable spindle (16) and having motor means for rotatably driving said spindle (16). At least one gripper (26) is provided for gripping a tool holder (18) and for transferring same from a first, uncoupled position outside said spindle (16) into a second, ready-to-couple position within said spindle (16). Coupling means (35) are provided at said headstock (12) for coupling said tool holder (18) in said second, ready-to-couple position with said spindle (16) such that said tool holder (18) assumes one of at least two coupled conditions, whereby in such coupled condition said tool holder (18) is locked on said spindle (16) for rotation therewith. Said at least two coupled conditions differ from one another with respect to a relative angular alignment between said tool holder (18) and said spindle (16). Control means are provided for controlling said motor means and having sensor means (48) for detecting said tool holder (18) to be in one of said coupled conditions and for differentiating between said at least two coupled conditions.