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Rotary fast tool servo system and methods

Patent ·
OSTI ID:917201
 [1];  [2]
  1. Cambridge, MA
  2. Plaistow, NH
+ Show Author Affiliations
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.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
W-7405-ENG-48
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Number(s):
7,275,468
Application Number:
10/448,336
OSTI ID:
917201
Country of Publication:
United States
Language:
English

References (2)

A new symmetric scanning tunneling microscope design
  • Davidsson, P.; Claeson, T.; Pehrson, S.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 6, Issue 2 https://doi.org/10.1116/1.575421
journal March 1988
Properties and prospective applications of ultra thin layered rubber-metal laminates for limited travel bearings journal February 1983

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