基于UG的高精度棱体成形车刀CAD系统

The CAD System of High Precision Prismatic-formed Turning Tools Based on UG

根据成形车刀的设计理论,开发出了一种基于Windows XP和UG二次开发平台、以VC为编程工具的成形车刀CAD系统。该系统利用自动截形法获得成形车刀“零误差”刀刃廓形,利用最小半径控制点技术实现了棱体成形车刀基于特征的参数化设计,使用数据库技术实现成形车刀的切削角度、结构尺寸的参数化设计,解决了原来成形车刀设计的设计精度和效率较低等问题,彻底消除了双曲线误差。借助该系统可直接快速、准确地生成高精度棱体成形车刀工程图以及廓形的数控线切割加工程序。

A CAD system of formed turning tools has been developed, which based on UG further developing technique, Windows XP System and VC according to the theory of designing formed turning tools. This system utilizes the method of intersecting workpiece automatically to obtain zero error intersection of the tools edge, utilizes the technique of minimum radius control point to realize parametric design based on feature of prismatic - formed turning tools, and carries out parametric design of cutting angle and structure dimension by the use of database technique. This method solves the problem of the tools former design, such as low design precision and efficiency, etc. , and eliminates the hyperbolic errors. The system can quickly, directly and accurately makes not only the detail drawing of high precision prismatic - formed turning tools, but also the NC program of WEDM of the tool profiles.