The invention relates to the technical field of
numerical control machinery, in particular to a correction-free
numerical control chamfering
algorithm based on a polar coordinate
machine tool. On thebasis of a
machining principle of the polar coordinate
machine tool which only has an X axis, a Z axis and a C axis, a cylindrical gear is free of correction, eccentric deflection is detected automatically, under the state, a deflection axis does not need to be added, and space chamfering is realized by a cone curve on a cone cutter. According to the method, any two measurable planes in the axialdirection are selected, points are respectively collected according to an equal angle method, relative position models of a
machining coordinate
system and a workpiece coordinate
system are established, a mutual conversion relation is obtained, the position of a target
machining contour of the cylindrical gear in the machining coordinate
system is obtained, and a cutter point is obtained accordingto the
cutting characteristic of the cone curve. The chamfering
processing operation process is simplified, and the
processing efficiency is improved.