Design Of Motion Control Cards Of The Short Electric Arc NC Lathe Based On DSP&CPLD&USB

The surface-removed machining of hard machining material which has great rigidity, intensity, tenacity is a difficult problem of mechanical manufacturing industry on efficient preparation and special metal element processing. Belonging to original technique of our country,the short electric arc machining technique is a scientific,economic,high effective,low energy consumed,processed materials saved,low-noise technique and becomes a rigid surface material machining technique with market potential,all right developmental foreground,high effect and utility.However, the working mechanism of short electric arc machining technique is not yet clear because the efficient processing technique of short electric arc is summarized through long-term plenty of experiments and it still operated by the way of traditional turning machine tool. For solution of short electric arc mechanism research and the needs of numerical control melt application, it is nescssary to develop a short electric arc CNC machining. The task of this paper is to design a motion controller card which for working mechanism of short electric arc machining technique. It should conform to the requirements of open architecture NC. The most advantage of this motion controller is that users could rewrite the controlling algorithm into it and modify partially hardware interface function of controllor through simple programming. So, this motion controller is more flexible and versatility in active application.In this paper we choose high-performance DSP CPU and CPLD chip, which can built some logic freely, and USB chip, which communicate with center computer, to achiece our aim.