机械轴类零件CAD系统研究与实践

Research and Practice on a New Type CAD System For Axis Parts of Machines

CAD系统是机械设计与加工自动化发展方向的重要课题 .本文介绍一种新型机械轴类零件CAD系统的实现技术 .该系统使用了“特征图形单元”的建模方法 ,用VB开发出面向CAD集成的特征造型系统 ,通过输入参数自动完成二维及三维图形的设计 .该系统的研究方法及实现过程对于其它类型零件的CAD研究以及CAD CAPP集成也有一定的参考价值 .

The CAD system is an important developing direction o f machine design and processing automatization. The paper introduces a new type of CAD system for axis parts of port machines, which puts forward a modeling me thod based on feature unit by using Visual Basic as the developing tool. It can complete the process of CAD by inputing some parameters. The method of this syst em will be helpful to other CAD/CAPP systems integration.