【正文】
沖突,它們中的一個則要被移到下一步。最后矩陣M 成為空矩陣。從帶狀布局自動設(shè)計模型中得出的結(jié)果是慣用的。依靠知識模型的數(shù)據(jù)結(jié)構(gòu),通過移動點和改變步驟,增加空步和刪除空步的目的可以被實現(xiàn)。工步改變可以通過交換兩個位置的編碼來實現(xiàn),工步增加或減少可以通過插入或移除編碼的操作來完成。 確定沖壓中心和力計算的智能模型。模具工具中心和沖壓中心的一致非常重要,只有那樣沖壓工具才能在一起正常的工作。設(shè)計的第一部是得到工具的工作區(qū)域。依靠沖壓中心和外矩形之間的關(guān)系可以生成工作區(qū)域。再生成的步驟由人機接口軟件來完成。 保存在知識庫中的內(nèi)容包括模具工具的每種類型、零件落料、廢料移除等等。力方程是由知識規(guī)則庫的推理得到的。然后,通過設(shè)計結(jié)果和合零件情況,可以得到脫離力、阻力和推件力。 4 結(jié)論和進一步工作 計算機輔助設(shè)計工具的應(yīng)用在金屬成型中的應(yīng)用,節(jié)省了大量的時間和金錢。這個研究開發(fā)了一個集成的 CAD 系統(tǒng),該系統(tǒng)開發(fā)了一種工藝規(guī)劃系統(tǒng)使對不規(guī)則零件在高速下進精密加工得以實現(xiàn)。用戶在設(shè)計過程中可以自由使用它們作為參考。 3. 排樣模塊生成最佳排樣圖以到達材料的最大利用率。不僅最佳規(guī)劃而且每個合理的規(guī)劃被保存在知識庫中。 4. 帶狀排樣模 塊生成自動工藝規(guī)劃圖。 在工藝規(guī)劃中協(xié)助設(shè)計者的此系統(tǒng)將會是一種有用的工具。它提供了一個非常靈活的設(shè)計環(huán)境,用戶可以完全掌握即使是復雜零件的沖壓工藝規(guī)劃設(shè)計。 進一步的工作將會集中在排樣優(yōu)化的效率改善上,優(yōu)化用時將會減少。根據(jù)沖壓工藝規(guī)劃的結(jié)果 ,沖壓模具設(shè)計應(yīng)用也將會在進一步的工作中被研究。s researchers are also studying stamping process and punch die special system. [6]. The focus of their study in deposed smaller bridge waste shape coding and recognition technology. [7] in Shanghai stamping mould and tools institute of technology researchers also 8 developed progressive die CAD/CAM system. They study the system depend on special relevant data to describe the workpiece and mould structure. The findings of the research work purpose is to promote the development of metal forming process. From metal intelligence review and analysis of the forming of intelligent design, use the theory and method to study the stamping process planning steps. In this paper introduces applied in stamping process planning of intelligent system. This intelligent system in dealing with some plex design problem is a powerful tool. By special knowledge construction intelligent systems can use an interactive way help user to solve all kinds of problems or questions. [8]. Intelligent system is a puter system, it tried to represent human knowledge and professional knowledge, and to a practical and effective way to provide fast, convenient and knowledge. Intelligent system can acplish generally require experts to plete tasks. It can automatic realtime use existing professional knowledge, and explain its reasoning process. Stamping process planning is a rich knowledge of the plex design process. Integration in the stamping process planning and design of the key techniques of intelligent system is of vital importance. The use of intelligence theory stamping process planning intelligent systems have been proffered. Some key technologies, such as integrated product knowledge modeling and strategic planning prehensive stamping process was studied. In stamping design including all kinds of knowledge, such as domain knowledge, 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。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 whole arrangement design process. Figure 3 shows the layout rating system structure The first kind of mode selection function is roughly calculated the numerical and working area general outline. This model provides the original parameters. All the information is roughly value resulting from them, no matter the figures are outlined draw or selected. The second mode used to determine the layout type, Angle range, layout size and strip the width. The third kind of mode applied optimization algorithm. Design results include material utilization, material width and every step clearance are kept in this mode, the different layout drawing also generate. In the fourth mode can modify layout results. Eventually p