Post-processing method for domestic double pendulum head five shaft machine tool

The invention relates to a post-processing method for converting a cutter location source file into a domestic double pendulum head five shaft machine tool processing code. The post-processing method is characterized in that length of an arm is made to be zero, calculation is carried out by employing a five shaft double pendulum head cutter center algorithm. The post-processing method comprises steps that alphaC is calculated from the cutter location source file, a maximum rotation angle alphaCmax is further extracted; a machine tool maximum rotation angle Cmax is contrasted with the maximum rotation angle alphaCmax, and a difference value of a first row rotation angle alphaC1 and a secondary row rotation angle alphaC2 is contrasted with betaC; conversion is carried out by employing a corresponding processing mode according to contrast results; the well-converted NC code is returned to a main program. The post-processing method is advantaged in that the maximum value of the fifth shaft rotation angle which is