本系统根据“脉冲间隔法”(哈工大学报83年一期)推导出直接插补直线、圆弧、椭圆、双曲线、抛物线及一般二次曲线的数学模型,在此基础上进行了程序设计,并用TP801—Z80单板机作为控制器构成了线切割机数控系统。加工实验表明:该系统操作简单,插补速度快,可靠性高,模型改变灵活,而且具有成本低,体积小等优点,从而 The system deduces the mathematical model of direct interpolation of straight lines, arcs, ellipses, hyperbolic curves, parabolas and general quadratic curves according to the “pulse interval method” (Journal of Harbin University of Science and Technology, 83Years). On the basis of this, And with TP801-Z80 single-board machine as a controller of wire cutting machine CNC system. Processing experiments show that: The system is simple, fast interpolation, high reliability, flexible model changes, and has the advantages of low cost, small size and thus