Method for verifying the performance accuracy of a numerically c

Details Method for verifying the performance accuracy of a numerically c Method for verifying the performance accuracy of a numerically c

1994-03-16

1996-07-16

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318571, 318570, 318600, G05B 1918

Patent

active

055370160

ABSTRACT:
The invention relates to a method for verifying the performance accuracy of an NC machine by comparing a desired circular path with the actual circular path describing the actual movement of the machine and used in an NC machine having at least two servo control loops each of which is provided with an axis actuator for guiding a carrier in accordance with a position reference signal describing the desired movement path, and a path measuring system to record and feed back the position of the carrier. In this case, the actual circular path R.sub.M is formed from the position signals (x.sub.M) supplied by the path measuring system (33, 43) and, preferably, each of the position signals (x.sub.M) measured by the path measuring system (33, 43) is compared with the associated position reference signal (w.sub.NC).

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W. Knapp: "Kreisformtest in der praktischen Anwendung auf NC-Werkzeugmaschinen". In: Technische Rundschau 1988 vol. 46, pp. 20, 22, 25, Fig. 2, 4.
E. Kiesel: "Freiprogrammierbares Kompakt-Formmessgerat fur rotationssymmetrische Werkstucke". In: Walzlagertechnik--Industrietechnik (FAG) 1991-502, pp. 29-32.
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"Das neue PC-gestutzte Messystem zur Uberprufung von Bearbeitungszentren" (The New PC-based Measuring System for Evaluating Processing Centers). 1991, Renishaw Company.

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