通过应用制造系统工程理论对铸造车间的总体结构和功能的分析,提出了铸造车间CAD系统的总体设计方案。论文深入探讨了应用面向对象的开发工具ObjectARX对AuotCADR14进行二次开发的方法和技巧,借助于MFC成功地实现了ObjectARX与外部数据库的结合,开发出基于Windows的砂处理工部CAD系统。系统具有砂处理工部设计,参数化绘图和数据库操作三大类功能。系统包含三个主菜单,砂处理菜单下包括:新砂处理模块,混砂单元模块和系统设备管理模块;参数化菜单下包括:图纸初始化、柱网自动生成、Y33系列带式输送机和混砂机基础等子系统的参数化设计模块;订货图菜单下包括:输送机、斗提机和翻斗加料机的订货图设计模块,砂处理设备资源查询和明细表数据浏览模块。系统初步具备了砂处理工部的辅助布置功能,并给出了一个铸造厂粘土砂砂处理工部布置实例。在本系统中:第一,由于本系统是在AutoCADR14的基础上开发的结果,其充分利用了R14的先进特性;多文档框架的Win32应用、直接使用操作系统的字体、高质量和易于操作的图形界面、快速的文件调用和节省的文件存储格式、强大的绘图功能;这些为系统的开发提供了良好的环境。第二,论文详细探讨了AutoCAD的面向对象的开发工具ObjectARX开发AutoCAD的方法。ObjectARX应用作为一种动 By applying the theory of manufacturing system engineering to the overall structure and function of the foundry, the overall design scheme of the foundry workshop CAD system is put forward. The thesis explores the methods and techniques of secondary development of AuotCADR14 by object-oriented development tool ObjectARX. With the aid of MFC, it realizes the combination of ObjectARX and external database, and develops the CAD system of sand processing department based on Windows. The system has sand processing department design, parametric drawing and database operations three categories of functions. The system includes three main menus. The sand processing menu includes: new sand processing module, sand mixing unit module and system equipment management module. Under the parameterized menu are: drawing initialization, column net generation, Y33 series belt conveyor and sand mixing Machine basis and other subsystems of the parametric design module; order diagram menu includes: conveyor, bucket elevator and hopper feeder ordering diagram design module, sand processing equipment resource query and schedule data browsing module. The system initially has the auxiliary function of the sand processing department, and gives an example of the layout of the ministry of clay foundry sand processing department. In this system: First, because this system is the result that develops on the basis of AutoCADR14, it has made full use of the advanced characteristic of R14; Win32 application of much document frame, direct use operating system fonts, high quality and easy operation Graphical interface, fast file transfer and saved file storage format, powerful drawing capabilities; these provide a good environment for the development of the system. Second, the paper discusses in detail the object-oriented development tools AutoCAD ObjectARX AutoCAD development methods. ObjectARX application as a move