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Title: Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape

Abstract

A turning machine includes a controller for generating both aspherical and non-symmetrical shape components defining the predetermined shape, and a controller for controlling a spindle and a positionable cutting blade to thereby form a predetermined non-rotationally symmetric shape in a workpiece surface. The apparatus includes a rotatable spindle for rotatably mounting the workpiece about an axis, a spindle encoder for sensing an angular position of the rotating workpiece, the cutting blade, and radial and transverse positioners for relatively positioning the cutting blade and workpiece along respective radial and transverse directions. The controller cooperates with a fast transverse positioner for positioning the cutting blade in predetermined varying transverse positions during a revolution of the workpiece.

Inventors:
 [1];  [1];  [2];  [3]
  1. Raleigh, NC
  2. (Raleigh, NC)
  3. Cary, NC
Issue Date:
OSTI Identifier:
870160
Patent Number(s):
5467675
Application Number:
08/393,890
Assignee:
North Carolina State University (Raleigh, NC)
Patent Classifications (CPCs):
G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
78Y-XT910C
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; method; forming; workpiece; surface; non-rotationally; symmetric; shape; machine; controller; generating; aspherical; non-symmetrical; components; defining; predetermined; controlling; spindle; positionable; cutting; blade; form; rotatable; rotatably; mounting; axis; encoder; sensing; angular; position; rotating; radial; transverse; positioners; relatively; positioning; respective; directions; cooperates; fast; positioner; varying; positions; revolution; workpiece surface; angular position; rotatable spindle; cutting blade; components defining; predetermined shape; rotationally symmetric; shape components; /82/

Citation Formats

Dow, Thomas A, Garrard, Kenneth P, Moorefield, II, George M., and Taylor, Lauren W. Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape. United States: N. p., 1995. Web.
Dow, Thomas A, Garrard, Kenneth P, Moorefield, II, George M., & Taylor, Lauren W. Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape. United States.
Dow, Thomas A, Garrard, Kenneth P, Moorefield, II, George M., and Taylor, Lauren W. Tue . "Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape". United States. https://www.osti.gov/servlets/purl/870160.
@article{osti_870160,
title = {Apparatus and method for forming a workpiece surface into a non-rotationally symmetric shape},
author = {Dow, Thomas A and Garrard, Kenneth P and Moorefield, II, George M. and Taylor, Lauren W},
abstractNote = {A turning machine includes a controller for generating both aspherical and non-symmetrical shape components defining the predetermined shape, and a controller for controlling a spindle and a positionable cutting blade to thereby form a predetermined non-rotationally symmetric shape in a workpiece surface. The apparatus includes a rotatable spindle for rotatably mounting the workpiece about an axis, a spindle encoder for sensing an angular position of the rotating workpiece, the cutting blade, and radial and transverse positioners for relatively positioning the cutting blade and workpiece along respective radial and transverse directions. The controller cooperates with a fast transverse positioner for positioning the cutting blade in predetermined varying transverse positions during a revolution of the workpiece.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {11}
}

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Works referenced in this record:

Design and testing of a fast tool servo for diamond turning
journal, July 1985


Application of a fast tool servo for diamond turning of nonrotationally symmetric surfaces
journal, October 1991


Tool Positioning for Noncircular Cutting with Lathe
conference, June 1986


Theoretical Tool Movement Required To Diamond Turn An Off-Axis Paraboloid On Axis
conference, December 1976


Description of off-axis conic surfaces for nonaxizymmetric surface generation
conference, August 1990


A New Micro-Cutting Device with High Stiffness and Resolution
journal, January 1990