SISTEMA DI CONTROLLO GEOMETRICO,PER AUMENTARE LA PRECISIONE DU UNA MACCHINA UTENSILE,PARTICOLARMENTE DI UNA MACCHINA UTENSILE DI GRANDI DIMENSIONI

摘要

A machine tool is provided with an arrangement for increasing its precision by compensating for deviations in tool positioning caused by factors, such as elastic deformation of the machine structure, which vary in their effect in dependence on the current working state of the machine tool. The arrangement includes a compensator device arranged to physically act upon the machine tool to cancel at least one deviation component, and signal processing means controlling the action of the compensator device in dependence on the current machine working state as sensed by a plurality of transducers. The signal processing means stores data interrelating the machine working state to a corresponding appropriate magnitude of action of the compensator device.