The cutter location in nc generative ultrasonic grinding process for parallel ruled surface with cylindrical grinding wheel was analyzed , the structure of nc generative ultrasonic grinding device was introduced , the design of grinding spindle assembly and the spindle ' s driving scheme was also introduced , system hardware and software design had been finished 摘要分析了圆柱磨轮数控展成超声磨削平行直纹面时的刀具空间位置，介绍了数控展成超声磨削成形加工机床的总体结构，论述了磨轮主轴部件设计及主轴驱动方案，实现了主轴变频调速控制系统软硬件设计。
Of those , the main function of graphical user interface module is to manage graphical user interface and interface programming . the main function of design and compute module is to taking on selecting the construction , the parts and checking the design results of servo feed cad system . the main function of graphics system is to draw the assembly graphics of servo feed system by the design results 其中界面系统部分进行统一的界面管理并组织相应的接口程序；科学计算部分承担伺服进给系统结构选型、零部件选取和校核计算；图形系统能根据计算部分的结构参数绘制出相应的各部件设计图纸及装配图；数据库负责保存相关的设计数据、图表和绘好的图表。
On the one hand it is important for the design of floating - point processor unit to optimize speed while algorithms of high - speed are introduced . for examples , two - path of high - speed floating - point addition , booth coding of floating - point multiplication . srt of floating - point division and square root , cordic of transcendental function and so on 一方面浮点处理部件设计重点在于速度的优化，所以采用优化的高速算法，如浮点加法的two - path 、浮点乘法的booth编码、浮点除法和平方根的srt算法以及超越函数的cordic算法等。
