Rotary fast tool servo system and methods
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:
-
- Cambridge, MA
- Plaistow, NH
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 917201
- Patent Number(s):
- 7275468
- Application Number:
- 10/448,336
- Assignee:
- Massachusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23B - TURNING
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23Q - DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Montesanti, Richard C, and Trumper, David L. Rotary fast tool servo system and methods. United States: N. p., 2007.
Web.
Montesanti, Richard C, & Trumper, David L. Rotary fast tool servo system and methods. United States.
Montesanti, Richard C, and Trumper, David L. Tue .
"Rotary fast tool servo system and methods". United States. https://www.osti.gov/servlets/purl/917201.
@article{osti_917201,
title = {Rotary fast tool servo system and methods},
author = {Montesanti, Richard C and Trumper, David L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 02 00:00:00 EDT 2007},
month = {Tue Oct 02 00:00:00 EDT 2007}
}
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