interpolatore proportional particularly for digital controls for machine tools with more axles

摘要

A system for causing proportional interpolation in a numerically controlled machine having three, or more, degrees of motion is described. Two of the degrees of motion may occur in a plane defined by perpendicular axes and can be planar or revolutional motions. These two motions would then be defined with respect to the axes and could be mathematically linear or nonlinear. The other degrees of motion can be revolutional or planar motions individually defined with respect to any of the axes of the system. The invention is directed to a system for causing all motions to be proportional to a selected one of the motions irrespective of whether the selected motion is linear or nonlinear. This is achieved by calculating proportionalities between the selected motion and the other motions and combining the calculated proportionalities with the programmed data to cause the final motion to be in accordance with the combined data.