System and process for certification of the position of a...

B - Operations – Transporting – 23 – Q

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B23Q 17/24 (2006.01) G01B 21/04 (2006.01)

Patent

CA 2371943

Machine tool system comprising a head (1) with a tool carrier (4) in which a tool (T) is mounted, and which is detectable by transducers (T1, T2) connected to a control unit (ECU) to which there are also connected sensors (S1-S3) which signal the instantaneous position of the head (1) within a reference system (X, Y, Z), and motors operable to cause controlled movement of the head (1). The system further comprises at least one laser radiation generator (12; 112) and an associated detector (13; 113) which define two measurement fields in which two laser beams (LB; LB1, LB2) extend in directions forming an angle preferably of 90~, and a processing and control device (ECU) providing controlled movements of the head (1) in said measurement fields so as to cause the tool (T) to intercept the laser beam (LB; LB1, LB2) the acquisition and analysis of signals provided by the detector (13; 113) and generation of signals or data indicative of the geometry and position of the tool (T) in the reference system (X, Y, Z).

L'invention concerne un système de machine outil, comprenant une tête (1) pourvue d'un porte-outil (4) sur lequel on monte un outil (T) détectable par des transducteurs (T1, T2) reliés à une unité de commande (ECU), des capteurs (S1-S3) également reliés à ladite unité de commande permettant de signaler la position instantanée de la tête (1) dans un système de référence (X, Y, Z); et des moteurs fonctionnant de manière à commander le déplacement de ladite tête. Le système comprend également au moins un générateur (12, 112) de faisceau laser; un organe de détection (13, 113) associé définissant deux zones de mesures dans lesquelles deux faisceaux laser (LB, LB1, LB2) s'étendent dans des sens qui forment un angle, de préférence, de 90·; un dispositif de commande et de traitement (ECU) fonctionnant de manière à commander les déplacements de la tête (1) dans lesdites zones de mesure afin d'amener l'outil (T) à intercepter les faisceaux laser (LB, LB1, LB2), à acquérir et analyser les signaux fournis par le capteur (13, 113), et à générer des signaux et des données indiquant la géométrie et la position de l'outil (T) dans le système de référence (X, Y, Z).

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