The research of CNC spinning tool path algorithm based on equidistance line

In the spinning process, the tool trajectories is equidistant line of mold profile curve. For specific CNC spinning process, the machining toolpaths are calculatedby the principle of equidistance line. This paper presents an efficient algorithm for the calculation of two-dimensional composite curve equidistant lines. The algorithm calculates the trajectory of processing tool based on limited data and the processing parameters, and it can effectively handle generated invalid data in the calculation of equidistance line to avoid the processing accident caused by the erroneous data. Meanwhile, the algorithm makes CNC machine operation becomes easy, that need not writing complex CNC G-code as in the past.