基于UG的高精度棱体成形车刀CAD/CAM系统  

CAD/CAM system of high precision prismatic-formed turning tools based on UG

作　　者：刘吉兆[1] 何将三[1] 邓朝晖[2] 

机构地区：[1]中南大学机电工程学院 [2]湖南大学机械与汽车工程学院,湖南长沙410082

出　　处：《中南大学学报（自然科学版）》2005年第6期1031-1036,共6页Journal of Central South University:Science and Technology

基　　金：湖南省教育厅科研基金资助项目(02C014)

摘　　要：根据成形车刀的设计理论,综合运用UG/OpenMenuScript,UG/Open UIStyler,UG/Open API和Visual C++6.0等UG二次开发工具,开发出基于Windows XP和UG二次开发平台、以VC为编程工具的成形车刀CAD/CAM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;采用导入燕尾槽模型的方法,利用最小半径控制点技术实现了棱体成形车刀的基于特征参数化设计;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;通过编程实现工程图的尺寸标注功能;解决原来成形车刀设计的设计精度和效率低等问题,消除了双曲线误差。该系统实现了与UG系统的无缝集成,具有良好的人机交互性、可扩充性和可移植性。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/CAM system of forming turning tools is developed by useing UG/Open Menu- Script, UG/Open UIStyler, UG/Open API and Visual C ＋＋6.0, which regards Windows system and UG as a platform according to forming turning tools design theory. This system utilizes the method of intersecting work piece automatically to obtain zero error intersection of the tools edge. Importing swallowtail trough model method and utilizing the technique of minimum radius control point, parametric design is realized based on feature on prismatic-formed turning tools. Cutting angle, parameters of structure dimension are designed by useing database technique, and the dimension-driven function is realized by means of system programming. This method solves the former problem of the tools design, such as low design precision and efficiency, etc, and eliminates the hyperbolic errors. This system realizes the integration of UG system, good manmachine interaction, expandability and portability, and can quickly, directly and accurately make not only the detail drawing of high precision prismatic-formed turning tools, but also the numerical control（NC） program of wire electric discharge machine（WgDM） of the tool profiles.

关 键 词：棱体成形车刀 UG CAD/CAM系统 参数化设计 “零误差”截形 最小半径控制点 

分 类 号：TG712[金属学及工艺—刀具与模具] TP391.7[自动化与计算机技术—计算机应用技术]