【正文】
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 parameters include clearance, material each step of grid, and the width, the ability to switch. When the parameters change, layout plans can be updated. 11 This knowledge is the main purpose of the algorithm to optimize the layout planning. This algorithm six steps. 1. The most suitable around in graphics rectangular first generation. The original copy and the distance between the approach is included in the . Figure 4 shows the algorithm. 2. The value of the two ring is among a putation. The two ring is deposed into line and arc units. The distance between each element needs to pensation. And then you can find the shortest distance. 3. The minimum value and calculated the value of the required the difference between is error. When the error less than value, arrangement planning can be pleted. In addition, graphic layout to follow the direction of the view movement. Graph 4: arrangement algorithm. A primitive Angle graphics. B rotation Angle of graphics after 4. Material utilization in layout39。它提供了一個(gè)非常靈活的設(shè)計(jì)環(huán)境,用戶可以完全掌握即使是復(fù)雜零件的沖壓工藝規(guī)劃設(shè)計(jì)。 3. 排樣模塊生成最佳排樣圖以到達(dá)材料的最大利用率。然后,通過(guò)設(shè)計(jì)結(jié)果和合零件情況,可以得到脫離力、阻力和推件力。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。工步改變可以通過(guò)交換兩個(gè)位置的編碼來(lái)實(shí)現(xiàn),工步增加或減少可以通過(guò)插入或移除編碼的操作來(lái)完成。 如果兩個(gè)點(diǎn)之間有沖突,它們中的一個(gè)則要被移到下一步。這些點(diǎn)的名字是 k1, k2, . . ., kn. 這里 dij 是 ki 和 kj 之間最小的距離。在知識(shí)模型中包含很多重要的規(guī)則,例如在一次單沖程中沖壓所有內(nèi)輪廓比較好。由此種類型信息組成的知識(shí)模型將會(huì)決定零件的沖壓順序。被修改的模塊代替了處理模塊。重復(fù)第三部的的步驟,直到角度達(dá)到 180 度。 算出的最小 值 和所要求的 值 之 間 的差異就是 誤 差 。 該 算法共有六步。粗略數(shù) 值 的全部信息都由此得到,不管 這 個(gè)數(shù)字是否被概略畫(huà)出或是被 選 中。各種不同領(lǐng)域的知識(shí)、經(jīng)驗(yàn)和專業(yè)知識(shí)都被保存在工藝規(guī)劃專業(yè)系統(tǒng)中。結(jié)果來(lái)證實(shí)零件的形狀是否符合模具工具加工。 3 實(shí)施方法和應(yīng)用 沖壓智能模型的可行性論證 智能系統(tǒng)對(duì)沖壓工件的質(zhì)量、成本、模具壽命進(jìn)行評(píng)價(jià)。此集成的知識(shí)系統(tǒng)模型可被共享和用于智能設(shè)計(jì)和產(chǎn)品信息溝通。依靠此模型的工程語(yǔ)義模型,許多與設(shè)計(jì)相關(guān)的功能可以被實(shí)現(xiàn)。必須考慮到多種因素 ,如幾何形狀、技術(shù)要求、材料性能、沖壓件的可行性、工作程序安排、模具工具的結(jié)構(gòu)。它能自動(dòng)化實(shí)時(shí)利用現(xiàn)有的專業(yè)知識(shí) ,并解釋它的推理過(guò)程。他們研究的該系統(tǒng)依靠特殊的相關(guān)數(shù)據(jù)來(lái)描繪工件和模具結(jié)構(gòu)。 [4] 在新加坡國(guó)立大學(xué)。 多年來(lái),相關(guān)研究已就如何 在創(chuàng)新的環(huán)境 加強(qiáng) 工藝規(guī)劃的 集成化 和智能化程度 進(jìn)行研究 。 1 中文 5300 字 智能沖壓工藝規(guī)劃系統(tǒng)的研究 摘要: 本文對(duì)建立 一個(gè)智能沖壓工藝設(shè)計(jì)知識(shí)為基礎(chǔ) 的 系統(tǒng) 給出了一個(gè)簡(jiǎn)單的介紹 。近年來(lái), 通過(guò) 生產(chǎn)金屬成形智能設(shè)計(jì)系統(tǒng) 、自動(dòng)化 技術(shù), 整和了工藝規(guī)劃的原則。一些零件表象技術(shù)、沖壓零件識(shí)別和模具構(gòu)成也存在于這項(xiàng)工作中。 上述研究的研究工作的目的是為了促進(jìn)金屬成形的發(fā)展。沖壓工藝規(guī)劃是一個(gè)含有豐富知識(shí)的復(fù)雜設(shè)計(jì)過(guò)程。沖壓工藝規(guī)劃是一種基于專家知識(shí)的創(chuàng)造性程序。隨著人工智能的發(fā)展,智能模型開(kāi)始被應(yīng)用。 這個(gè)關(guān)于沖壓模具工藝規(guī)劃的智能 系統(tǒng)構(gòu)架已經(jīng)被設(shè)計(jì)出來(lái)。該評(píng)價(jià)基于成 熟的智能模型。智能推理用于自動(dòng)和交互的方式。 知識(shí)庫(kù)的發(fā)展是基于規(guī)則表達(dá)的共同原則。 第二種模式用來(lái)確定布局 類 型、角度范 圍 、布局大小和條 帶 區(qū)的 寬 度。 。當(dāng) 誤 差小于允 許值時(shí) ,排 樣規(guī) 劃就可以完成。 帶狀布局的開(kāi)發(fā) 帶狀布局的工序規(guī)則被集成于知識(shí)基礎(chǔ)級(jí)進(jìn)刀具設(shè)計(jì)。 自動(dòng)帶狀布局設(shè)計(jì)的預(yù)處理 1)確定零件的位置和排列。這個(gè)設(shè)計(jì)過(guò)程的主要要求是為位置精度開(kāi)發(fā)一種知識(shí)模型 [12]。在下一個(gè)階段這個(gè)部分被切斷。矩陣的臨界值是 S。在每一步中重復(fù)上述步驟直到?jīng)_突點(diǎn)消失。 當(dāng)我們想移動(dòng)一些點(diǎn)時(shí),我們可以從第一步到最后一步轉(zhuǎn)移鏈表中相當(dāng)?shù)狞c(diǎn)。因?yàn)椴黄胶饬Φ慕Y(jié)果的可能性,同時(shí)也提供了沖壓中心的再生成。總的力按照知識(shí)庫(kù)中的導(dǎo)向一步一步計(jì)算。產(chǎn)品成本的減少取決于排樣最優(yōu)化計(jì)算。該系統(tǒng)擁有圖形交互界面,用戶可以在設(shè)計(jì)過(guò)程中交互式地改變各種設(shè)計(jì)參數(shù)。s point of view is calculated. 5. Arrangement graphics rotating certain Angle. Rotating center near the center is the rectangular roughly value. Material utilization in the current Angle was calculated. 6. Arrangement graphics rotated to another Angle. Repeat the steps of the third part, until Angle reached 180 degrees. Figure 5 shows is the arrangement design results. Graph 5: row kind of intelligent design results. The development of ri