Apparatus and method for feedback-adjusting working...

G - Physics – 05 – B

Patent

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G05B 19/18 (2006.01) G05B 19/401 (2006.01)

Patent

CA 2089335

A feedback compensating apparatus for adjusting the working condition of a working machine of a working system adapted to process working portions of successive workpieces under control of a machine controller, which determines the working condition from an extraneous signal. The apparatus is used with the controller and a measuring device for measuring the dimensions of the processed working portions of the workpieces, and includes a device for obtaining dimensional data based on outputs of the measuring device during and/or after a working operation of the machine on each workpiece. The dimensional data include a dimensional error of the processed working portions, and a variable indicative of a tendency of change in the dimensional error. The apparatus further includes a device for determining the extraneous signal based on the dimensional data, and applying the signal to the machine controller to adjust the working condition of the machine. Also disclosed is a method of processing workpieces using the apparatus.

Dispositif de compensation à rétroaction pour régler le régime de marche d'une machine à travailler conçue pour traiter des portions de pièces successives sous le contrôle d'un module de commande qui détermine le régime de marche à partir d'un signal extérieur. Le dispositif fonctionne en conjonction avec le module de commande et un appareil de mesure servant à mesurer les dimensions des portions de pièces à usiner, et comporte un appareil permettant d'obtenir des données dimensionnelles à partir des données fournies par l'appareil de mesure pendant et après le travail effectué sur une pièce individuelle. Les données dimensionnelles incluent les erreurs dimensionnelles ainsi qu'une variable indicative de la tendance au changement au niveau des erreurs dimensionnelles. Le dispositif comporte en outre un appareil capable de déterminer le signal extérieur sur la base des données dimensionnelles, et de fournir ce signal au module de commande qui effectuera le réglage du régime de marche de la machine. L'inventions vise également une méthode reposant sur l'utilisation du dispositif pour effectuer le traitement des pièces.

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