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Patent Searching and Data


Title:
FAST TOOL SERVO SYSTEM AND METHOD FOR CUTTING A WORKPIECE
Document Type and Number:
WIPO Patent Application WO2005002788
Kind Code:
A3
Abstract:
A high bandwidth rotary fast tool servo provides tool motion in a direction nominally parallel to the surface-normal of a workpiece at the point of contact between the cutting tool and workpiece. Three or more flexure blades having all ends fixed are used to form an axis of rotation for a swing arm that carries a cutting tool at a set radius from the axis of rotation. An actuator rotates a swing arm assembly such that a cutting tool is moved in and away from the lathe-mounted, rotating workpiece in a rapid and controlled manner in order to machine the workpiece. A pair of position sensors provides rotation and position information for a swing arm to a control system. A control system commands and coordinates motion of the fast tool servo with the motion of a spindle, rotating table, cross-feed slide, and in-feed slide of a precision lathe.

Inventors:
TRUMPER DAVID L (US)
Application Number:
US2004016970W
Publication Date:
April 14, 2005
Filing Date:
June 01, 2004
Export Citation:
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Assignee:
MASSACHUSETTS INST TECHNOLOGY (US)
TRUMPER DAVID L (US)
International Classes:
B23B5/00; B23B29/04; B23Q1/36; B23Q1/52; B23Q1/70; B23Q5/22; B23Q5/28; B24B13/04; (IPC1-7): B23Q5/36; B23B29/12
Domestic Patent References:
WO2003101666A22003-12-11
Foreign References:
EP0354639A21990-02-14
US6170367B12001-01-09
US5718154A1998-02-17
EP0786309A11997-07-30
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