Based On Pro / Engineer 3d Plastic Injection Mold Small And Medium-sized Mold Library To Establish

Now the further developing upon the general CAD system lags severely behind the increasing popularity of the application of the CAD system in our country. So the author developed a 3D middle-small scale plastic mold base standard library system by the further development upon the CAD software Pro/Engineer using VC++ 6.0 and Pro/Toolkit, which is the further developing module of Pro/Engineer.According to the structural characteristics of middle-small scale plastic mold base library in GB/T12556-90 and the parametric feature of Pro/Engineer software, the author firstly set up the general parts and Family Tables of the various standard parts (especially the plates) which composed mold base, then assembled those general parts into a general mold base, lastly used the instant parts as variable to establish the Family Tables of mold base. This system used Family Table to store the dimension information that can be changed. Therefore, it need not build another database, but used the database of Pro/Engineer's own.For the best way to invoke the instance that Family Table can provide is by the name of the instance. However, there were so many instances (nearly 14,000). Plus the instance name was difficult to memorize, so it was hard for the user to find the needed mold base. Therefore, the user interface was developed by using VC++ and Pro/Toolkit.Through the study of this subject, some results and conclusions are got as follows:1) The whole design of this mold base standard library system was completed. It laya foundation for the popularity of mould standard parts and improved the utility of Pro/Engineer software.2) The communication port between Pro/Engineer software and MFC was realized,this communication port broke the limitation of Pro/Toolkit. It solved the technical difficult problems that existed upon the further developing of Pro/Engineer and lay a foundation on programming development.3) Some plastic mould standard parts library were established, such as upper platesstandard library, lower plates standard library, cushion standard library and ejector standard library.4) The feasibility of the second developing was realized. Pro/Engineer software, which has the characteristics of full associativity and parametric, was adopted as the platform of second developing. This assured the advancement of the platform and reduced the workload. The user's application could be loaded dynamically and automatically and saved in the unite database by Pro/Toolkit. This lay a good foundation for the CAD/ CAE /CAM /CAPP integrated system.The successful development of the 3D mold base standard library is a good experiment in the further developing upon Pro/Engineer software. It is believed that this system has great referential value for the related system development in the future.