帶料切口連續(xù)拉深級進(jìn)模具設(shè)計(jì)-機(jī)械模具畢業(yè)設(shè)計(jì)論文.doc

文檔包括:說明書一份,26頁,18800字左右.CAD圖紙共24張:帶料切口連續(xù)拉深級進(jìn)模具設(shè)計(jì)摘 要：帶料連續(xù)拉深分無工藝切口拉深和有工藝切口拉深，有工藝切口連續(xù)拉深就是在首次拉深前，帶料上個工序之間切開一個工藝切口，這樣當(dāng)首次和以后各次拉深時，兩次工序間的相互影響、相互約束較小，但相對的，耗費(fèi)的材料較多。以薄壁寬凸緣筒形件生產(chǎn)為例，設(shè)計(jì)一例連續(xù)模，首先對零件進(jìn)行工藝分析，有拉深，沖孔，翻邊，落料工序，每個工位之間都有尺寸關(guān)系，因?yàn)槭谴螽a(chǎn)量的小型筒形拉深件，一般采用帶料連續(xù)拉深。采用普通的單工序?；驈?fù)合模沖制生產(chǎn)的話，需多副模具、多臺沖床、多個操作人員才能完成全部工序的沖壓制造而且產(chǎn)品質(zhì)量和生產(chǎn)效率都低。故選多工位級進(jìn)模具的生產(chǎn)工藝方案，可以提高材料的利用率和模具的使用水平，節(jié)省設(shè)備。其次經(jīng)過計(jì)算分析確定工藝方案完成該模具的排樣設(shè)計(jì)，凸、凹模工作部分的設(shè)計(jì)計(jì)算，還有模具結(jié)構(gòu)和工藝零件設(shè)計(jì)。關(guān)鍵詞：工藝性分析，工藝計(jì)算，排樣，級進(jìn)模，工藝切口。Design of Continuous Drawing Progressive Die for Material with IncisionAbstract：Strip continuous deep drawing process of drawing and process without incision incision drawing, process notch continuous drawing is in the first drawing, a strip of material processes a process between incision incision, such that when the first and later the drawing, the two processes of mutual influence, mutual constraint is smaller, but the relative, spend more material.According to the thin wall Wide-flange cylindrical parts production as an example, a design of progressive die, the first parts of the process analysis, there is deep drawing, punching, flanging, blanking process, each station has the size relations, because it is high yield small cylindrical deep drawing parts, generally use the strip continuous deep drawing. Using the ordinary single-operation die or compound die punching production, need to die, punch, a plurality of operating personnel can complete all processes of stamping manufacturing and product quality and the production efficiency is low. The multi-position progressive die for the production process, can improve the utilization ratio of materials and mold level of use, saving equipment. Secondly, through calculation and analysis to determine the process plan to complete the mold layout design, convex, concave die part of the design calculation, and the die structure and process design.Key words：Process analysis, Process calculation, Nesting progressive, Die Process incision.目 錄 摘要1關(guān)鍵詞11 前言21.1 冷沖壓術(shù)的發(fā)展趨勢21.1.1 冷沖壓設(shè)備自動化21.1.2 提高模具的加工效率31.1.3 注重開發(fā)大型，精密，復(fù)雜模具31.2 模具技術(shù)發(fā)展的幾個特點(diǎn)32 工藝性分析42.1 沖裁件的結(jié)構(gòu)工藝性52.2 制件沖壓工藝方案的確定53 制件排樣圖的設(shè)計(jì)及材料利用率的計(jì)算53.1 展開尺寸的計(jì)算53.2 拉伸次數(shù)的確定73.3 制件排樣圖的設(shè)計(jì)93.3.1 搭邊與料寬103.3.2 材料利用率的計(jì)算104 確定總沖壓力和選用壓力機(jī)及計(jì)算壓力中心114.1 沖裁力的計(jì)算114.1.1 沖導(dǎo)正孔力計(jì)算114.1.2 切廢料力計(jì)算 114.1.3 拉深力計(jì)算114.1.4 沖孔力計(jì)算124.1.5 翻孔力一般不大124.1.6 落料力計(jì)算134.1.7 卸料力、推件力及頂件力的計(jì)算134.2 壓力中心的計(jì)算134.3 壓力機(jī)的選用145 凸、凹模刃口尺寸計(jì)算155.1 落料，沖孔凸、凹模刃口尺寸155.1.1 計(jì)算原則155.1.2 沖裁間隙對沖裁力的影響155.1.3 沖裁間隙對斜料力、推件力、頂件力的影響155.1.4 沖裁間隙對尺寸精度的影響165.2 凸模和凹模配合加工1653 拉深模176 模具整體結(jié)構(gòu)形式設(shè)計(jì)197 模具零件的結(jié)構(gòu)設(shè)計(jì)217.1 拉深凸模的設(shè)計(jì)217.1.1 凸模1217.1.2 凸模2217.1.3 凸模3227.1.4 凸模4227.1.5 凸模5237.1.6 翻孔凸模237.2 凹模的設(shè)計(jì)248 裝配模具24設(shè)計(jì)小結(jié)25參考文獻(xiàn)25致謝26主要內(nèi)容和要求（宋體五號，行間距單倍行距）帶料連續(xù)拉伸通常采用2種方法：整體帶料連續(xù)拉伸和帶料切口連續(xù)拉伸。整體帶料連續(xù)拉伸是在帶料上進(jìn)行無工藝切口的連續(xù)拉伸方法。當(dāng)采用整體帶料連續(xù)拉伸方法拉伸時，相鄰2 個拉伸部位之間的材料流動互相影響，使得材料變形困難，而且所能產(chǎn)生的變形主要是材料伸長。這樣，極限拉伸系數(shù)就比單工序大，拉伸工序數(shù)相應(yīng)增加，但材料較少。而帶料切口連續(xù)拉伸是帶料上有工藝切口的連續(xù)拉伸方法。由于有了工藝切口，接近于單個凸緣件的拉伸，但相鄰2 個拉伸件間仍有部分材料相連，使之比單個凸緣件拉伸稍微難些。因此，極限拉伸系數(shù)略大于單件拉伸，但與帶料連續(xù)拉伸相比，材料容易流動，拉伸后的制件質(zhì)量較好，當(dāng)然也增加了材料的消耗。內(nèi)容簡要：應(yīng)用帶料切口連續(xù)拉伸設(shè)計(jì)薄壁寬凸緣筒型件級進(jìn)模具。要求模具為拉伸、沖孔、翻邊、落料多工序級進(jìn)模?；疽?對沖壓成形工藝進(jìn)行分析研究；2應(yīng)用Pro/E軟件進(jìn)行產(chǎn)品造型設(shè)計(jì)；3針對具體工序設(shè)計(jì)結(jié)構(gòu)合理的模具；4設(shè)計(jì)全套的模具工程圖；5編制模具工作零件的制造工藝規(guī)程；6要求圖紙總工作量不少于3張零號圖，設(shè)計(jì)說明書不少于12000字。主要參考資料（具體格式以規(guī)范化要求規(guī)定為準(zhǔn)）1 王樹勛等. 典型模具結(jié)構(gòu)圖冊M.廣州.華南理工大學(xué)出版社. 2005，4.2 涂光祺. 沖模技術(shù) M.北京. 機(jī)械工業(yè)出版社. 2004.9.3 王衛(wèi)衛(wèi). 材料成形設(shè)備M. 機(jī)械工業(yè)出版社，2006.14 楊玉英. 實(shí)用沖壓工藝及模具設(shè)計(jì)手冊M，北京機(jī)械工業(yè)出版社，2005.95 翁其金. 沖