Motion control with precomputation

G - Physics – 05 – B

Patent

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Details

G05B 19/18 (2006.01) G05B 19/23 (2006.01) G05B 19/29 (2006.01) G05B 19/40 (2006.01) G05B 19/416 (2006.01)

Patent

CA 2173241

A system for controlling motion of machine tools and industrial robots. From the specification of a part to be cut or a path to be followed by a machine tool or robot, the system calculates for each axis, for each incremental step along the path, a position command (69), a time delay between successive position commands, and, optionally, a force command (68) based on a prediction of predicted resistive forces. Calculations are specified for precisely controlling velocity, acceleration, and jerk. The generated data is stored in a memory device and subsequently directed to the machine tool or robot.

Système de commande des mouvements d'une machine-outil ou d'un robot industriel. A partir des caractéristiques d'une pièce à usiner ou d'une trajectoire à suivre par la machine-outil ou le robot, le système calcule pour chacun des axes et pour chaque incrément de trajectoire une instruction de positionnement (69), un intervalle entre instructions successives de positionnement et éventuellement une instruction de force (68), fonction des forces de résistance escomptées. Les calculs sont conçus pour obtenir un contrôle précis de la vitesse, des accélérations et des suraccélérations. Les données calculées sont mises en mémoire puis transférées à la machine-outil ou au robot.

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