自顶向下的常用机构库研究

论述了基于Creo平台的机械常用机构库的二次开发，并针对开发中的关键技术进行了详细的介绍.在Visual Studio 2010环境下，利用Creo软件提供的二次开发工具Creo/TOOLKIT，结合SQL Server数据库和MFC技术设计编写了机械常用机构库系统.机构库中的机构全部采用自顶向下设计完成，以封闭行星轮系圆柱齿轮凸轮机构设计为例，介绍了常用机构库的具体功能.工程应用表明，该系统能够对常用机械机构进行快速检索，并且能够查看机构的运动仿真、运动曲线、特性等参考，同时能够针对具体机构进行快速设计，进而提高了产品设计水平、缩短了设计周期.

Research of Database of Mechanisms Based on Top-Down

This study discusses the secondary development of the database of mechanisms based on the Creo platform, and introduces the key technologies in detail. In the environment of Visual Studio 2010, with the secondary development tools Creo/TOOLKIT provided by Creo software, combined with SQL Server database, it uses MFC technology to design and compile the database of mechanisms. All mechanisms are designed by top-down in the database of mechanism. Taking the design of planetary gear cam mechanism of closed planetary gear train as an example, the specific functions of the database of mechanisms are introduced. The engineering application shows that the system can retrieve mechanism fast, and can view the mechanism''s motion simulation, motion curves, features, etc. At the same time, it can design the concrete mechanism rapidly, improve the level of product design, and shorten the design cycle.