Double nurbs tool path axis equidistant interpolation method based on parameters of the synchronous

The present invention relates to a dual-axis equidistant tool path NURBS interpolation method based on the synchronization parameter, comprising the steps of: discrete cutter according site data generating two NURBS curves P (u) and Q (w), wherein the cutter bit comprising a tool center point data and tool axis vector pi oi, P (u) represents the tool center point curve, u is a parameter, Q (w) indicates the curve arbor point, w is the parameter; The curves P (u), Q ( w) parameter u, the relationship between w, derived arbor point curve Q (w) of the interpolation point. Compared with the prior art, the present invention has solved the tool center point of the curve and the curve parameters arbor synchronization issues, and to achieve the advantages of equidistant double interpolation NURBS tool path trajectory.