Secondary position feedback control of a robot

G - Physics – 05 – B

Patent

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G05B 19/404 (2006.01)

Patent

CA 2750113

A method of and apparatus for achieving dynamic robot accuracy includes a control system utilizing a dual position loop control. An outer position loop uses secondary encoders on the output side of the gear train of a robot joint axis, while the inner position loop uses the primary encoder attached to the motor. Both single and dual loop control can be used on the same robot and tooling axes.

L'invention concerne un procédé et un appareil permettant d'atteindre une précision de robot dynamique qui comprennent un système de commande utilisant une commande de boucle à deux positions. Une boucle en position extérieure utilise des encodeurs secondaires sur le côté de sortie du train d'engrenages d'un axe d'articulation de robot, tandis que la boucle en position intérieure utilise l'encodeur primaire fixé sur le moteur. Une commande de boucle simple et double peut être utilisée sur le même robot et les mêmes axes d'usinage.

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