The Development Of Experimental Teaching NC System Based On AT89S52

With development of technologies, NC technology has been used widely, the teaching of NC technology is planed or processed in many universities at present. In view of this, this paper proposed developing a set of teaching experimental numerical control system for sake of the requirements of NC Teaching & Experimenting on the basis of NC theoryAt first, this paper summarized the current status and development tendency of the domestic and foreign NC technology, drawn up Design proposal of HFUT-1 teaching experimental NC system. Discussed the work and function of the economical NC system principle, in the foundation, systematically analyzed the hardware and software functional design of the numerical control system is developed. When the system hardware is designed, chose the AT89S52 chip as the control core. The system software functional design mainly includes edition, automatic processing, simulation and parameter hypothesis.Moreover, this paper discussed the solution of the four key problems in detail. Namely: the principle and method of interpolation, the realization of liquid crystal display, tool compensation and its realization method, semi-closed control research. Finally, the paper has forecast the tendency of teaching experimental NC.