Interpolation procedure of nc carving and milling machine tool

CNC carving and milling machine tool of the interpolation arithmetic average execution in the interrupt service routine. CNC carving and milling machine tool interpolation procedures in each interpolation cycle time, in each of the interpolation cycle, according to the instruction of feed speed compute a small linear data segment. After several interpolation cycle, interpolation processing completed a code, that is, from the beginning walked to the end of the data segment. In a treatment cycle interpolation calculation the next cycle of position increment, thus it is concluded that the load of the next timer values. Deformation is adopted in CNC carving and milling machine tool numerical control system digital integral method, linear interpolation and circular interpolation, the interpolation error is less than 1/2 pulse equivalent, performance is superior to the traditional point by point comparison method. Here in the first quadrant line as an example this paper describes the full process of deformation linear interpolation digital integral method below.

flow chart of linear interpolation of nc carving and milling machine tool