| GT (Group Technology) has been widely applied in mechanical manufacture industry. But there is little application in mold technology. In order to take full advantage of GT in mold technology, the first work is to set up the classification and coding system, which is fit for injection mold. At the same time in order to satisfy GT-CAD demands, the parameter library for injection mold on the base of classification of the injection mold parts must be built. The library is the result of GT application in mold CAD.According to GT principle, a set of coding system for injection mold is built on the base of injection mold structure feature and function analysis by sorting out the classification mark. The design and manufacture information is contained in the system. It can be used for parts designs, layout of process and management. In addition, the system can be used as classification rule for mold parts.According to the coding system, the injection mold parts are sorted by feature. A library frame is established on the classification result.At last, choosing JAVA and the interface supplied by Pro/E as the development tools, an injection mold parameter library is developed on Pro/E platform by manipulating allying Family Table function. The system can generate the corresponding 3D model in the light of the customer parameter. At the end of the paper the examples explain the operation process of the system.The research result is convenient for retrieving and collecting design and process information, the most obvious effect is that efficiency of mold design is improved. It promotes the GT utilization in injection mold production. |
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