Numerical controller having display function for trajectory of tool

Abstract

A numerical controller capable of visually and accurately analyzing a change of the tool trajectory before and after changing a processing condition, whereby a parameter of a drive axis can be properly adjusted. The numerical controller comprises a numeric controlling part which controls each drive axis based on a predetermined position command; a position data obtaining part which obtains position data of each drive axis controlled by the numerical controlling part; a tool coordinate calculating part which calculates a coordinate of a tool center point based on position feedback or obtained position data of each drive axis and information of a mechanical structure of a machine tool; a tool trajectory storing part which stores the calculated coordinate of the tool center point as a feedback trajectory; and a displaying part which displays the stored feedback trajectory on a display.

Dependencies are inferred from the claim text.