冲压模具外文资料翻译--智能冲压工艺规划系统的研究(编辑修改稿)

冲压模具外文资料翻译--智能冲压工艺规划系统的研究(编辑修改稿)内容摘要：

multitasking knowledge, nonstandard knowledge. Each kind of knowledge all need to be integrated into the system. Stamping mould that is the core of stamping process. Must consider the various factors, such as geometry, technical requirements, material properties and stamping feasibility, working procedures arrangement, the structure of mould tool. Stamping process planning is a kind of creative program based on experts39。 knowledge. Intelligent system technology can improve the efficiency of the stamping process planning. 2 system frame and the frame Intelligent system key technology is built and application of information model making. This product information model, including three stages: a kind of the model, based on geometric model based on features based on intelligence, the model. Based on geometric model describing the geometric topology information parts. Because parts of data message cannot be fully described, data separation level is too low, geometric model was characteristic model replaced. This information model includes a set of geometric entities. Rely on this model, the engineering semantic model with design of related functions many can be realized. Along with the development of artificial intelligence, the intelligent model begins to be used. Professional knowledge, design process of knowledge, and relevant knowledge are included 9 in the knowledge model [9, 10]. Intelligent model support expression and transfer of useful information. This paper mainly summarizes a stamping process planning of intelligent system. This intelligent system for product definition effective and plete. It has the advantages of different geometrical model and can satisfy the geometric designs and reasoning process. Objectoriented technology is applied to integrate all kinds of knowledge. This integrated knowledge system model can be Shared and used in intelligent design and product information munication. Figure 1 shows the stamping process planning intelligent system frame This about stamping mould process planning of intelligent system frame has been designed. The ponents of the structure design, including a graphical user interface, an application system, design resources, knowledge tool, mixed reasoning mechanism, basic model. In this architecture knowledge model have different classification. Knowledge model from the design resource to extract useful information, support knowledge acquisition and knowledge expression program. This model is useful information transferred to knowledge. Comprising CAD software support. Design results as a 3D model, pictures and database is stored in the repository, it in different parts of the knowledge base is very important knowledge transfer. 3 implementation method and application stamping feasibility of intelligent model Intelligent system for stamping workpiece quality, cost, die life is evaluated. This evaluation based on mature intelligent model. This model has integrated rule library, parts information and conclusion library. Coefficient of knowledge rule reasoning in knowledge according to that. Stamping forming feasibility can from a database of information and related coefficient parts launch. In the design process of the extension of the new conclusion preserved in conclusion library. Model of intelligent reasoning process and parts specification limits range pared with the technological parameters. This specification Including input/output radius, aperture, orifice plate, hole s, chamfer, trough s. Results to confirm whether accord with the shape of mould parts processing tools. Intelligent reasoning is used in the automatic and interactive way. It39。 s purpose is to study the feasibility of pressing the product. Intelligent reasoning based on the key is to determine the thickness and the correlation coefficient parts processing limit. Figure 2 shows the feasibility of the model for product flow chart. 10 Figure 2 shows the feasibility of the model for product flow chart. Knowledge rules and design results stored in the database of mechanical reasoning. Parts in knowledge model shape can modify. The decision by the knowledge model stamping process planning is very important step, it also provides to choose a single step process tool or posite tools or a method of improvement tools. All sorts of different domain knowledge, experience and expertise are kept in the process planning of professional system. Based on the development of knowledge base is the mon principle rules expression. The purpose of this step is to integrate professional experience and parts shape based on optimization algorithm of intelligent strip layout model In order to achieve higher material utilization, blank knowledge model was established, the results are stored in knowledge base established basis other modules. In the knowledge base there are four arrangement type: Arranged layout pattern determined With an array of Washington relative pattern Secondranking arranged layout mode two With two secondranking arranged layout relative mode The purpose of establishing the knowledge model is to improve the material utilization. The restrictions by knowledge can provide human experts to choose from. This knowledge model control over the wh。