裝配圖網(wǎng) > 圖紙?jiān)O(shè)計(jì) > 畢設(shè)全套 > 連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合?！?/div>

mm：直徑： 30深度： 50 第三章 XX零件坯料沖孔落料復(fù)合模工作部分零件設(shè)計(jì) 3.1XX零件坯料沖孔落料復(fù)合模，沖3mm孔凸模的設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，沖3mm孔凸模材料選擇：為保證模具的壽命以及零件的精度和材料供應(yīng)問(wèn)題我們選擇Cr12MOV。XX零件坯料沖孔落料復(fù)合模，沖3mm孔凸模形式確定：采用國(guó)家規(guī)定形式中的(GB2863.2-81)。材料選擇：為保證模具的壽命以及零件的精度和材料供應(yīng)問(wèn)題XX零件坯料沖孔落料復(fù)合模，沖3mm孔凸模的熱處理： 5862HRC。XX零件坯料沖孔落料復(fù)合模。沖3mm凸模的冷處理：加超深冷冷處理（零下400C）因?yàn)楣饪繜崽幚頉](méi)法完全的去除材料的內(nèi)應(yīng)力。在材料剛剛經(jīng)過(guò)熱處理后接著進(jìn)行材料的加超深冷冷處理。這樣可以最大限度的去除材料的內(nèi)應(yīng)力。以增加模具的使用壽命。保證產(chǎn)品的尺寸精度穩(wěn)定性。XX零件坯料沖孔落料復(fù)合模，沖3mm凸模的固定方式：采用壓入式固定。XX零件坯料沖孔落料復(fù)合模，沖3mm凸模具體設(shè)計(jì)圖紙如：圖3-1沖孔凸模所示。圖3-1沖孔凸模3.2XX零件坯料沖孔落料復(fù)合模落料凹模設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，落料凹模材料的選擇：同凸模的材料一樣選擇Cr12MoV。XX零件坯料沖孔落料復(fù)合模，落料凹模的熱處理： 6064HRC。XX零件坯料沖孔落料復(fù)合模，落料凹模的冷處理：加超深冷冷處理（零下400C應(yīng)為光靠熱處理沒(méi)法完全的去除材料的內(nèi)應(yīng)力，在材料剛剛經(jīng)過(guò)熱處理后接著進(jìn)行材料的加超深冷冷處理，這樣可以最大限度的去除材料的內(nèi)應(yīng)力，以增加模具的使用壽命，保證產(chǎn)品的尺寸精度穩(wěn)定性）。XX零件坯料沖孔落料復(fù)合模，落料凹模的具體設(shè)計(jì)圖紙如：圖2-4落料凹模所示。圖3-2落料凹模3.3XX零件坯料沖孔落料復(fù)合模凸凹模設(shè)計(jì)- 20 -XX零件坯料沖孔落料復(fù)合模，凸凹模材料的選擇：和凸模的材料一樣我們用Cr12MoV。XX零件坯料沖孔落料復(fù)合模，凸凹模的熱處理： 5862HRC。XX零件坯料沖孔落料復(fù)合模，凸凹模的冷處理：加超深冷冷處理（零下400C應(yīng)為光靠熱處理沒(méi)法完全的去除材料的內(nèi)應(yīng)力，在材料剛剛經(jīng)過(guò)熱處理后接著進(jìn)行材料的加超深冷冷處理，這樣可以最大限度的去除材料的內(nèi)應(yīng)力，以增加模具的使用壽命，保證產(chǎn)品的尺寸精度穩(wěn)定性）。XX零件坯料沖孔落料復(fù)合模，凸凹模設(shè)計(jì)圖紙如：圖2-5凸凹模所示。圖3-3凸凹模3.4 XX零件坯料沖孔落料復(fù)合模，凸模固定板設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，凸模固定板材料選擇：45。XX零件坯料沖孔落料復(fù)合模，凸模固定板熱處理要求：4550HRC。XX零件坯料沖孔落料復(fù)合模，凸模固定板設(shè)計(jì)如：圖2-6凸模固定板所示。圖3-4凸模固定板3.5XX零件坯料沖孔落料復(fù)合模，凸凹模固定板設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，凸、凹模固定板材料選擇：45。XX零件坯料沖孔落料復(fù)合模，凸、凹模固定板熱處理要求：4550HRC。XX零件坯料沖孔落料復(fù)合模，凸、凹模固定板設(shè)計(jì)圖紙如：圖2-7凸、凹模固定板所示。總結(jié)圖3-5凸凹模固定板3.6 XX零件坯料沖孔落料復(fù)合模，推件塊設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，推件塊材料選擇：45。XX零件坯料沖孔落料復(fù)合模，具體設(shè)計(jì)如：圖2-8推薦號(hào)。圖3-6推件塊3.7XX零件坯料沖孔落料復(fù)合模，墊板設(shè)計(jì)XX零件坯料沖孔落料復(fù)合模，墊板材料選擇：45。XX零件坯料沖孔落料復(fù)合模，墊板具體設(shè)計(jì)如：圖2-9所示。圖3-7墊板第四章 XX零件坯料沖孔落料復(fù)合模具結(jié)構(gòu)設(shè)計(jì)4.1XX零件坯料沖孔落料復(fù)合模模架的選擇模架形式的選用后側(cè)導(dǎo)動(dòng)，結(jié)合設(shè)計(jì)的凹模等，先大概的確定一下模架的尺寸，最后再通過(guò)查詢資料選取標(biāo)準(zhǔn)模架。上模座尺寸80mm80mm20mm，材料選用，HT250下模座尺寸80mm80mm24mm，材料選用，HT2504.2 XX零件坯料沖孔落料復(fù)合模壓力中心計(jì)算由XX零件坯料圖就可以看出壓力中心，因?yàn)閄X零件坯料零件是對(duì)稱的，沒(méi)有必要進(jìn)行壓力中心的計(jì)算。4.3XX零件坯料沖孔落料復(fù)合模模具裝配圖和零件的繪制見(jiàn)圖紙總結(jié)將近1個(gè)多月的課程設(shè)計(jì)已近進(jìn)入尾聲，請(qǐng)各位老師對(duì)我的課程設(shè)計(jì)XX零件做最后的檢查。在我們目前的生活中絕大部分的用品都是利用模具做出來(lái)，無(wú)論是精密零件還是普通精度的零件，用模具都能高效率的生產(chǎn)出來(lái)，并且成本還很低，模具對(duì)我們影響的不單單是生活中的方方面面，也包括其它的各個(gè)行業(yè)。我們國(guó)家的起步不是太早，所以目前一些比較大型的還有比較精密的大部分都是依靠國(guó)外進(jìn)口，就連好的材料和刀具也是依賴于進(jìn)口，不過(guò)根據(jù)目前我們國(guó)家的發(fā)展速度，在不久我們就能趕上與世界先進(jìn)水平的差距，我們就能獨(dú)立的做出先進(jìn)的模具。所以我們學(xué)院安排的這次課程設(shè)計(jì)。對(duì)我們學(xué)生來(lái)說(shuō)意義非常的大。可以將我們所學(xué)的知識(shí)進(jìn)行一個(gè)完美的組合。同時(shí)還提高了我對(duì)于問(wèn)題的思考能力。對(duì)于問(wèn)題的解決能力。也讓我體會(huì)到了只要努力去做，付出了，“面包“總是會(huì)有的，只是時(shí)間問(wèn)題。- 25 -致謝致謝這次我的課程設(shè)計(jì)課題XX零件能夠成功個(gè)完成，首先要感謝我的課程設(shè)計(jì)指導(dǎo)老師模具教研室的主任，老師不僅借給我?guī)妆娟P(guān)于本次XX零件課程設(shè)計(jì)非常好的資料，而且還幫我把控整個(gè)課程設(shè)計(jì)的方向。在我遇到瓶頸時(shí)也耐心的輔導(dǎo)我，幫助我順利的完成我的XX零件課題設(shè)計(jì)。同時(shí)也感謝我們學(xué)院教過(guò)我的老師，在我AutuCAD工程繪圖時(shí)遇到不會(huì)時(shí)她耐心的教我如何用AutuCAD繪圖，這才使我的設(shè)計(jì)圖能夠順利的用繪圖軟件畫(huà)出來(lái)，并在設(shè)計(jì)說(shuō)明書(shū)中插入部分圖紙，還有教我們模具設(shè)計(jì)在我的設(shè)計(jì)出現(xiàn)于實(shí)際生產(chǎn)不相符的時(shí)候及時(shí)的指導(dǎo)我，讓我設(shè)計(jì)的XX零件彎曲模和XX零件坯料沖孔落料復(fù)合模復(fù)合實(shí)際生產(chǎn)。但是由于老師時(shí)間比較緊，不可能完全的將所有的問(wèn)題都找出了，加之我對(duì)于模具設(shè)計(jì)的各方面知識(shí)學(xué)得還不到位，有很多的東西還沒(méi)學(xué)好，無(wú)法避免的會(huì)出現(xiàn)一些不足之處，這點(diǎn)將在以后的工作中會(huì)進(jìn)一步完善。這次XX零件課題的課程設(shè)計(jì)的設(shè)計(jì)過(guò)程中參考了很多書(shū)籍還有一些網(wǎng)站，并且我們宿舍的舍友和班級(jí)里面的同學(xué)都給與我了我很大的幫助，在此表示衷心的感謝。 - 26 -參考文獻(xiàn)參考文獻(xiàn)1馮小明，梁熠葆. 冷沖壓工藝及模具設(shè)計(jì)M.重慶：重慶大學(xué)出版社，2004.42胡邵平，林承全. 沖壓模具課程設(shè)計(jì)指導(dǎo)與范例M.北京：化學(xué)工業(yè)出版社，2008.14丁松聚. 冷沖模設(shè)計(jì)M.北京：機(jī)械工業(yè)出版社，2001.105 江維健，林玉瓊，許華昌. 冷沖壓模具設(shè)計(jì)M.廣州：華南理工大學(xué)出版社，2005.75周斌興. 沖壓模具設(shè)計(jì)與制造M.北京：國(guó)防工業(yè)出版社，2006.46中國(guó)機(jī)械工業(yè)教育協(xié)會(huì)組.冷沖模設(shè)計(jì)及制造M.北京：機(jī)械工業(yè)出版社，2003.7劉建超，張寶忠.沖壓模設(shè)計(jì)與制造M.北京：高等教育出版社，2004.8林承全，余小燕.機(jī)械設(shè)計(jì)基礎(chǔ)學(xué)習(xí)與實(shí)訓(xùn)指導(dǎo)M.武漢：華中科技大學(xué)出版社，2007.9余小燕，鄭毅.機(jī)械制造基礎(chǔ)M.北京：科學(xué)出版社，200510王芳.冷沖壓模具設(shè)計(jì)指導(dǎo)M.北京：機(jī)械工業(yè)出版社，200511劉美玲，雷震德.機(jī)械設(shè)計(jì)基礎(chǔ)M.北京：科學(xué)出版社，200512王孝培.沖壓手冊(cè)M.北京：機(jī)械工業(yè)出版社，199813唐金松, 簡(jiǎn)明機(jī)械設(shè)計(jì)手冊(cè)M.上海：上?？萍汲霭嫔?，200014機(jī)械電子工業(yè)部, 模具制造工藝和裝備M.北京：機(jī)械工業(yè)出版社，199215徐進(jìn)，陳再枝, 模具材料應(yīng)用手冊(cè)M.北京：機(jī)械工業(yè)出版社，200116陳宏鈞, 機(jī)械加工工藝手冊(cè)M.北京：機(jī)械工業(yè)出版社，200017黃毅宏，李明輝, 模具制造工藝M.北京：機(jī)械工業(yè)出版社，199918陸名彰, 機(jī)械制造技術(shù)基礎(chǔ)M.湖南：湘潭工學(xué)院出版，200019蘇洪, 機(jī)械設(shè)計(jì)與制造工藝簡(jiǎn)明手冊(cè)M.北京：中國(guó)電力出版社出版，1998- 27 -沖壓成形與板材沖壓 1 概述通過(guò)模具使板材產(chǎn)生塑性變形而獲得成品零件的一次成形工藝方法叫做沖壓。由于沖壓通常在冷態(tài)下進(jìn)行，因此也稱為冷沖壓。只有當(dāng)板材厚度超過(guò)8100mm時(shí)，才采用熱沖壓。沖壓加工的原材料一般為板材或帶材，故也稱板材沖壓。某些非金屬板材（如膠木板、云母片、石棉、皮革等）亦可采用沖壓成形工藝進(jìn)行加工。沖壓廣泛應(yīng)用于金屬制品各行業(yè)中，尤其在汽車(chē)、儀表、軍工、家用電器等工業(yè)中占有極其重要的地位。沖壓成形需研究工藝設(shè)備和模具三類基本問(wèn)題。板材沖壓具有下列特點(diǎn)：（1）高的材料利用率。（2）可加工薄壁、形狀復(fù)雜的零件。（3）沖壓件在形狀和尺寸方面的互換性好。（4）能獲得質(zhì)量輕而強(qiáng)度高、剛性好的零件。（5）生產(chǎn)率高，操作簡(jiǎn)單，容易實(shí)現(xiàn)機(jī)械化和自動(dòng)化。沖壓模具制作成本高，因此適合大批量生產(chǎn)。對(duì)于小批量、多品種生產(chǎn)，常采用簡(jiǎn)易沖模，同時(shí)引進(jìn)沖壓加工中心等新型設(shè)備，以滿足市場(chǎng)求新求變的需求。板材沖壓常用的金屬材料有低碳鋼、銅、鋁、鎂合金及高塑性的合金剛等。如前所述，材料形狀有板材和帶材。沖壓生產(chǎn)設(shè)備有剪床和沖床。剪床是用來(lái)將板材剪切成具有一定寬度的條料，以供后續(xù)沖壓工序使用，沖床可用于剪切及成形。 2 沖壓成形的特點(diǎn)生產(chǎn)時(shí)間中所采用的沖壓成形工藝方法有很多，具有多種形式餓名稱，但塑性變形本質(zhì)是相同的。沖壓成形具有如下幾個(gè)非常突出的特點(diǎn)。（1）垂直于板面方向的單位面積上的壓力，其數(shù)值不大便足以在板面方向上使板材產(chǎn)生塑性變形。由于垂直于板面方向上的單位面積上壓力的素質(zhì)遠(yuǎn)小于板面方向上的內(nèi)應(yīng)力，所以大多數(shù)的沖壓變形都可以近似地當(dāng)作平面應(yīng)力狀態(tài)來(lái)處理，使其變形力學(xué)的分析和工藝參數(shù)的計(jì)算大呢感工作都得到很大的簡(jiǎn)化。（2）由于沖壓成形用的板材毛胚的相對(duì)厚度很小，在壓應(yīng)力作用下的抗失穩(wěn)能力也很差，所以在沒(méi)有抗失穩(wěn)裝置（如壓邊圈等）的條件下，很難在自由狀態(tài)下順利地完成沖壓成形過(guò)程。因此，以拉應(yīng)力作用為主的伸長(zhǎng)類沖壓成形過(guò)程多于以壓應(yīng)力作用為主的壓縮類成形過(guò)程。（3）沖壓成形時(shí)，板材毛胚內(nèi)應(yīng)力的數(shù)值等于或小于材料的屈服應(yīng)力。在這一點(diǎn)上，沖壓成形與體積成形的差別很大。因此，在沖壓成形時(shí)變形區(qū)應(yīng)力狀態(tài)中的靜水壓力成分對(duì)成形極限與變形抗力的影響，已失去其在體積成形時(shí)的重要程度，有些情況下，甚至可以完全不予考慮，即使有必要考慮時(shí)，其處理方法也不相同。（4）在沖壓成形時(shí)，模具對(duì)板材毛胚作用力所形成的約束作用較輕，不像體積成形（如模鍛）是靠與制件形狀完全相同的型腔對(duì)毛胚進(jìn)行全面接觸而實(shí)現(xiàn)的強(qiáng)制成形。在沖壓成形中，大多數(shù)情況下，板材毛胚都有某種程度的自由度，常常是只有一個(gè)表面與模具接觸，甚至有時(shí)存在板材兩側(cè)表面都有于模具接觸的變形部分。在這種情況下，這部分毛胚的變形是靠模具對(duì)其相鄰部分施加的外力實(shí)現(xiàn)其控制作用的。例如，球面和錐面零件成形時(shí)的懸空部分和管胚端部的卷邊成形都屬這種情況。由于沖壓成形具有上述一些在變形與力學(xué)方面的特點(diǎn)，致使沖壓技術(shù)也形成了一些與體積成形不同的特點(diǎn)。由于不需要在板材毛的表面施加很大的單位壓力即可使其成形，所以在沖壓技術(shù)中關(guān)于模具強(qiáng)度與剛度的研究并不十分重要，相反卻發(fā)展了學(xué)多簡(jiǎn)易模具技術(shù)。由于相同原因，也促使靠氣體或液體壓力成形的工藝方法得以發(fā)展。因沖壓成形時(shí)的平面應(yīng)力狀態(tài)或更為單純的應(yīng)變狀態(tài)（與體積成形相比），當(dāng)前對(duì)沖壓成形匯中毛胚的變形與力能參數(shù)方面的研究較為深入，有條件運(yùn)用合理的科學(xué)方法進(jìn)行沖壓加工。借助于電子計(jì)算機(jī)與先進(jìn)的測(cè)試手段，在對(duì)板材性能與沖壓變形參數(shù)進(jìn)行實(shí)時(shí)測(cè)量與分析基礎(chǔ)上，實(shí)現(xiàn)沖壓過(guò)程智能化控制的研究工作也在開(kāi)展。人們?cè)趯?duì)沖壓成形過(guò)程有離開(kāi)較為深入的了解后，已經(jīng)認(rèn)識(shí)到?jīng)_壓成型與原材料有十分密切的關(guān)系。所以，對(duì)板材沖壓性能即成形性與形狀穩(wěn)定性的研究，目前已成為沖壓技術(shù)的一個(gè)重要內(nèi)容。對(duì)板材沖壓性能的研究工作不僅是沖壓技術(shù)發(fā)展的需要，而且也促進(jìn)了鋼鐵工業(yè)生產(chǎn)技術(shù)的發(fā)展，為其提高板材的質(zhì)量提供了一個(gè)可靠的基礎(chǔ)與依據(jù)。 3沖壓變形的分類沖壓變形工藝可完成多種工序，其基本工序可分為分離工序和變形工序兩大類。分離工序是使胚料的一部分與另一部分相互分離的工藝方法，主要有落料、沖孔、切邊、剖切、修整等。其中又以沖孔、落料應(yīng)用最廣。變形工序是使胚料的一部分相對(duì)于另一部分產(chǎn)生位移而不破裂的工藝方法，主要有拉深、彎曲、局部成形、脹形、翻邊、縮徑、校形、旋壓等。從本質(zhì)上看，沖壓成形就是毛胚的變形區(qū)在外力的作用下產(chǎn)生相應(yīng)的塑性變形，所以變形區(qū)內(nèi)的應(yīng)力狀態(tài)和變形特點(diǎn)景象的沖壓成形分類，可以把成形性質(zhì)相同的成形方法概括成同一個(gè)類型并進(jìn)行體系化的研究。絕大多數(shù)沖壓成形時(shí)毛胚變形區(qū)均處于平面應(yīng)力狀態(tài)。通常認(rèn)為在板材表面上不受外力的作用，即使有外力作用，其數(shù)值也是較小的，所以可以認(rèn)為垂直于板面方向上的應(yīng)力為零，使板材毛胚產(chǎn)生塑性變形的是作用于板面方向上相互的兩個(gè)主應(yīng)力。由于板厚較小，通常都近似地認(rèn)為這兩個(gè)主應(yīng)力在厚度方向上是均勻分布的?；谶@樣的分析，可以把各種形式?jīng)_壓成型中的毛陪變形區(qū)的受力狀態(tài)與變形特點(diǎn)，在平面應(yīng)力的應(yīng)力坐標(biāo)系中與相應(yīng)的兩向應(yīng)變坐標(biāo)系中以應(yīng)力與應(yīng)變坐標(biāo)決定的位置來(lái)表示。4.沖壓用原材料沖壓加工用原材料有很多種，它們的性能也有很大的差別，所以必須根據(jù)原材料的性能與特點(diǎn)，采用不同的沖壓成形方法、工藝參數(shù)和模具結(jié)構(gòu)，才能達(dá)到?jīng)_壓加工的目的。由于人們對(duì)沖壓成形過(guò)程板材毛胚的變形行為有了較為深入的認(rèn)識(shí)，已經(jīng)相當(dāng)清楚的建立了由原材料的化學(xué)成分、組織等因素所決定的材料性能與沖壓成形之間的關(guān)系，這就使原材料生產(chǎn)部門(mén)不但按照沖壓件的工作條件與使用要求進(jìn)行原材料的設(shè)計(jì)工作，而且也根據(jù)沖壓件加工過(guò)程對(duì)板材性能的要求進(jìn)行新型材料的開(kāi)發(fā)工作，這是沖壓技術(shù)在原材料研究方面的一個(gè)重要方向。對(duì)沖壓用原材料沖壓性能方面的研究工作有（1）原材料沖壓性能的含義。（2）判斷原材料沖壓性能的科學(xué)方法，確定可以確切反映材料沖壓性能的參數(shù)，建立沖壓性能的參數(shù)與實(shí)際沖壓成形間的關(guān)系，以及沖壓性能參數(shù)的測(cè)試方法等。（3）建立原材料的化學(xué)成分、組織和制造過(guò)程與沖壓性能之間的關(guān)系。沖壓用原材料主要是各種金屬與非金屬板材。金屬板材包括各種黑色技術(shù)和有色金屬板材。雖然在沖壓生產(chǎn)中所用金屬板材的種類很多，但最多的原材料蛀牙是鋼板、不銹鋼板、鋁合金板及各種復(fù)合金屬板。5板材沖壓性能及其鑒定方法板材是指對(duì)沖壓加工的適應(yīng)能力。對(duì)板材沖壓性能的研究具有飛行重要的意義。為了能夠運(yùn)用最科學(xué)與最經(jīng)濟(jì)合理的沖壓工藝過(guò)程與工藝參數(shù)制造出沖壓零件，必須對(duì)作為加工對(duì)象的板材的性能具有十分清楚的了解，這樣才有可能充分地利用板材在加工方面的潛在能力。另一方面，為了能夠依據(jù)沖壓件的形狀與尺寸特點(diǎn)及其所需的成形工藝等基本因素，正確、合理地選用板材，也必須對(duì)板材的沖壓性能有一個(gè)科學(xué)的認(rèn)識(shí)與正確的判斷。評(píng)定板材沖壓性能的方法有直接試驗(yàn)法與間接試驗(yàn)法。實(shí)物沖壓試驗(yàn)是最直接的板材沖壓性能的評(píng)定方法。利用實(shí)際生產(chǎn)設(shè)備與模具，在與生產(chǎn)完全相同的條件下進(jìn)行實(shí)際沖壓零件的性能評(píng)定，當(dāng)然能夠的最可靠的結(jié)果。但是，這種評(píng)定方法不具有普遍意義，不能作為行業(yè)之間的通用標(biāo)準(zhǔn)進(jìn)行信息的交流。模擬試驗(yàn)是把生產(chǎn)中實(shí)際存在的沖壓成形方法進(jìn)行歸納與簡(jiǎn)單化處理，消除許多過(guò)于復(fù)雜的因素，利用軸對(duì)稱的簡(jiǎn)化了的成形方法，在保證試驗(yàn)中板材的變形性質(zhì)與應(yīng)力狀態(tài)都與實(shí)際沖壓成形相同的條件下進(jìn)行的沖壓性能的評(píng)定工作。為了保證模擬試驗(yàn)結(jié)果的可靠性與通用性，規(guī)定了私分具體的關(guān)于試驗(yàn)用工具的幾何形狀與尺寸、毛胚的尺寸、試驗(yàn)條件（沖壓速度、潤(rùn)滑方法、壓邊力等）。間接試驗(yàn)法也叫做基礎(chǔ)試驗(yàn)法。間接試驗(yàn)法的特點(diǎn)是：在對(duì)板材在塑性變形過(guò)程中所表現(xiàn)出的基本性質(zhì)與規(guī)律進(jìn)行分析與研究的基礎(chǔ)上，進(jìn)一步把它和具體的沖壓成形中板材的塑性變形參數(shù)聯(lián)系起來(lái)，建立間接試驗(yàn)結(jié)果（間接試驗(yàn)值）與具體的沖壓成形性能（工藝參數(shù)）之間的相關(guān)性。由于間接試驗(yàn)時(shí)所用試件的形狀與尺寸以及加載的方式等都不同于具體的沖壓成形過(guò)程，所以它的變形性質(zhì)和應(yīng)力狀態(tài)也不同于沖壓變形。因此間接試驗(yàn)所得的結(jié)果（試驗(yàn)值）并不是沖壓成形的工藝參數(shù)，而是可以用來(lái)表示板材沖壓性能的基礎(chǔ)性參數(shù)。Characteristics and Sheet Metal Forming1 The article overview Stamping is a kind of plastic forming process in which a part is produced by means of the plastic forming the material under the action of a die. Stamping is usually carried out under cold state, so it is also called stamping. Heat stamping is used only when the blank thickness is greater than 8100mm. The blank material for stamping is usually in the form of sheet or strip, and therefore it is also called sheet metal forming. Some non-metal sheets (such as plywood, mica sheet, asbestos, leather)can also be formed by stamping. Stamping is widely used in various fields of the metalworking industry, and it plays a crucial role in the industries for manufacturing automobiles, instruments, military parts and household electrical appliances, etc. The process, equipment and die are the three foundational problems that needed to be studied in stamping. The characteristics of the sheet metal forming are as follows: (1) High material utilization (2) Capacity to produce thin-walled parts of complex shape. (3) Good interchangeability between stamping parts due to precision in shapeand dimension. (4) Parts with lightweight, high-strength and fine rigidity can be obtained. (5) High productivity, easy to operate and to realize mechanization and automatization. The manufacture of the stamping die is costly, and therefore it only fits to mass production. For the manufacture of products in small batch and rich variety, the simple stamping die and the new equipment such as a stamping machining center, are usually adopted to meet the market demands. The materials for sheet metal stamping include mild steel, copper, aluminum, magnesium alloy and high-plasticity alloy-steel, etc.Stamping equipment includes plate shear punching press. The former shears plate into strips with a definite width, which would be pressed later. The later can be used both in shearing and forming. 2Characteristics of stamping forming There are various processes of stamping forming with different working patterns and names. But these processes are similar to each other in plastic deformation. There are following conspicuous characteristics in stamping: （1）The force per unit area perpendicular to the blank surface is not large but is enough to cause the material plastic deformation. It is much less than the inner stresses on the plate plane directions. In most cases stamping forming can be treated approximately as that of the plane stress state to simplify vastly the theoretical analysis and the calculation of the process parameters. （2）Due to the small relative thickness, the anti-instability capability of the blank is weak under compressive stress. As a result, the stamping process is difficult to proceed successfully without using the anti-instability device (such as blank holder). Therefore the varieties of the stamping processes dominated by tensile stress are more than dominated by compressive stress. （3）During stamping forming, the inner stress of the blank is equal to or sometimes less than the yield stress of the material. In this point, the stamping is different from the bulk forming. During stamping forming, the influence of the hydrostatic pressure of the stress state in the deformation zone to the forming limit and the deformation resistance is not so important as to the bulk forming. In some circumstances, such influence may be neglected. Even in the case when this influence should be considered, the treating method is also different from that of bulk forming. （4）In stamping forming, the restrain action of the die to the blank is not severs as in the case of the bulk forming (such as die forging). In bulk forming, the constraint forming is proceeded by the die with exactly the same shape of the part. Whereas in stamping, in most cases, the blank has a certain degree of freedom, only one surface of the blank contacts with the die. In some extra cases, such as the forming of the blank on the deforming zone contact with the die. The deformation in these regions are caused and controlled by the die applying an external force to its adjacent area. Due to the characteristics of stamping deformation and mechanics mentioned above, the stamping technique is different form the bulk metal forming: The importance or the strength and rigidity of the die in stamping forming is less than that in bulk forming because the blank can be formed without applying large pressure per unit area on its surface. Instead, the techniques of the simple die and the pneumatic and hydraulic forming are developed. Due to the plane stress or simple strain state in comparison with bulk forming, more research on deformation or force and power parameters has been done. Stamping forming can be performed by more reasonable scientific methods. Based on the real time measurement and analysis on the sheet metal properties and stamping parameters, by means of computer and some modern testing apparatus, research on the intellectualized control of stamping process is also in proceeding. It is shown that there is a close relationship between stamping forming and raw material. The research on the properties of the stamping forming, that is, forming ability and shape stability, has become a key point in stamping technology development, but also enhances the manufacturing technique of iron and steel industry, and provides a reliable foundation for increasing sheet metal quality. 3Categories of stamping forming Many deformation processes can be done by stamping, the basic processes of the stamping can be divided into two kinds: cutting and forming.Cutting is a shearing process that one part of the blank is cut from the other. It mainly includes blanking, punching, trimming, parting and shaving, where punching and blanking are the most widely used. Forming is a process that one part of the blank has some displacement from the other. It mainly includes deep drawing, bending, local forming, bulging, flanging, necking, sizing and spinning. In substance, stamping forming is such that the plastic deformation occurs in the deformation zone of the stamping blank caused by the external force. The stress state and deformation characteristic of the deformation zone are the basic factors to decide the properties of the stamping forming. Based on the stress state and deformation characteristics of the deformation zone, the forming methods can be divided into several categories with the same forming properties and be studied systematically.The deformation zone in almost all types of stamping forming is in the plane stress state. Usually there is no force or only small force applied on the blank surface. When is assumed that the stress perpendicular to the blank surface equals to zero, two principal stresses perpendicular to each other and act on the blank surface produce the plastic deformation of the material. Due to the small thickness of the blank, it is assumed approximately the two principal stresses distribute uniformly along the thickness direction. Based on this analysis, the stress state and the deformation characteristics of the deformation zone in all kinds of stamping forming can be denoted by the points in the coordinates of the plane principal stresses and the coordinates of the corresponding plane principal strains. 4Raw materials for stamping formingThere are a lot of raw materials used in stamping forming, and the properties of these materials may have large difference. The stamping forming can be succeeded only by determining the stamping method, the forming parameters and the die structures according to the properties and characteristics of the raw materials. The deformation of the blank during stamping forming has been investigated quite thoroughly. The relationships between the material properties decided by the chemistry component and structure of the material and the stamping forming has been established clearly. Not only the proper material can be selected based on the working condition and usage demand, but also the new material can be developed according to the demands of the blank properties during processing the stamping part. This is an important domain in stamping forming research. The research on the material properties for stamping forming is as follows: （1）Definition of the stamping property of the material. （2）Method to judge the stamping property of the material, find parameters to express the definitely material property of the stamping forming, establish the relationship between the property parameters and the practical stamping forming, and investigate the testing methods of the property parameters. （3）Establish the relationship among the chemical component, structure, manufacturing process and stamping property. The raw materials for stamping forming mainly include various metals and nonmetal plate. Sheet metal includes both ferrous and nonferrous metals. Although a lot of sheet metals are used in stamping forming, the most widely used materials are steel, stainless steel, aluminum alloy and various composite metal plates. 5Stamping forming property of sheet metal and its assessing methodThe stamping forming property of the sheet metal is the adaptation capability of the sheet metal to stamping forming. It has crucial meaning to the investigation of the stamping forming property of the sheet metal. In order to produce stamping forming parts with most scientific, economic and rational stamping forming process and forming parameters, it is necessary to understand clearly the properties of the sheet metal, so as to utilize the potential of the sheet metal fully in the production. On the other hand, to select plate material accurately and rationally in accordance with the characteristics of the shape and dimension of the stamping forming part and its forming technique is also necessary so that a scientific understanding and accurate judgment to the stamping forming properties of the sheet metal may be achieved. There are direct and indirect testing methods to assess the stamping property of the sheet metal.Practicality stamping test is the most direct method to assess stamping forming property of the sheet metal. This test is done exactly in the same condition as actual production by using the practical equipment and dies. Surely, this test result is most reliable. But this kind of assessing method is not comprehensively applicable, and cannot be shared as a commonly used standard between factories. The simulation test is a kind of assessing method that after simplifying and summing up actual stamping forming methods, as well as eliminating many trivial factors, the stamping properties of the sheet metal are assessed, based on simplified axial-symmetric forming method under the same deformation and stress states between the testing plate and the actual forming states. In order to guarantee the reliability and generality of simulation results, a lot of factors are regulated in detail, such as the shape and dimension of tools for test, blank dimension and testing conditions(stamping velocity, lubrication method and blank holding force, etc).Indirect testing method is also called basic testing method its characteristic is to connect analysis and research on fundamental property and principle of the sheet metal during plastic deformation, and with the plastic deformation parameters of the sheet metal in actual stamping forming, and then to establish the relationship between the indirect testing results(indirect testing value) and the actual stamping forming property (forming parameters). Because the shape and dimension of the specimen and the loading pattern of the indirect testing are different from the actual stamping forming, the deformation characteristics and stress states of the indirect test are different from those of the actual one. So, the results obtained form the indirect test are not the stamping forming parameters, but are the fundamental parameters that can be used to represent the stamping forming property of the sheet metal.

收藏

連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合?！?zip

折疊連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合模】

連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合?！?/span>

說(shuō)明書(shū).doc---(點(diǎn)擊預(yù)覽)

圖紙合集.dwg---(點(diǎn)擊預(yù)覽)

A4-落料凹模.dwg---(點(diǎn)擊預(yù)覽)

A4-推件塊.dwg---(點(diǎn)擊預(yù)覽)

A4-打桿.dwg---(點(diǎn)擊預(yù)覽)

A4-定位銷2.dwg---(點(diǎn)擊預(yù)覽)

A4-定位銷1.dwg---(點(diǎn)擊預(yù)覽)

A4-墊板.dwg---(點(diǎn)擊預(yù)覽)

A4-卸料板.dwg---(點(diǎn)擊預(yù)覽)

A4-凸模固定板.dwg---(點(diǎn)擊預(yù)覽)

A4-凸凹模固定板.dwg---(點(diǎn)擊預(yù)覽)

A4-凸凹模.dwg---(點(diǎn)擊預(yù)覽)

A4-沖孔凸模.dwg---(點(diǎn)擊預(yù)覽)

A2-沖孔落料復(fù)合模.dwg---(點(diǎn)擊預(yù)覽)

翻譯

外文翻譯.docx---(點(diǎn)擊預(yù)覽)

零件1.SLDPRT

壓縮包目錄

預(yù)覽區(qū)

連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合?！?/span>
- 翻譯
  - 外文翻譯.docx--點(diǎn)擊預(yù)覽
- A2-沖孔落料復(fù)合模.dwg
- A4-沖孔凸模.dwg--點(diǎn)擊預(yù)覽
- A4-凸凹模.dwg--點(diǎn)擊預(yù)覽
- A4-凸凹模固定板.dwg--點(diǎn)擊預(yù)覽
- A4-凸模固定板.dwg--點(diǎn)擊預(yù)覽
- A4-卸料板.dwg--點(diǎn)擊預(yù)覽
- A4-墊板.dwg--點(diǎn)擊預(yù)覽
- A4-定位銷1.dwg--點(diǎn)擊預(yù)覽
- A4-定位銷2.dwg--點(diǎn)擊預(yù)覽
- A4-打桿.dwg--點(diǎn)擊預(yù)覽
- A4-推件塊.dwg--點(diǎn)擊預(yù)覽
- A4-落料凹模.dwg
- 圖紙合集.dwg--點(diǎn)擊預(yù)覽
- 說(shuō)明書(shū).doc--點(diǎn)擊預(yù)覽
- 零件1.SLDPRT

請(qǐng)點(diǎn)擊導(dǎo)航文件預(yù)覽

編號(hào)：12245240 類型：共享資源大?。?span id="vnvpqeg" class="font-tahoma">1.03MB 格式：ZIP 上傳時(shí)間：2020-05-08

40
積分

舉報(bào)

版權(quán)申訴 word格式文檔無(wú)特別注明外均可編輯修改；預(yù)覽文檔經(jīng)過(guò)壓縮，下載后原文更清晰！ 立即下載

關(guān) 鍵詞：: 加工中心移門(mén)支架沖孔落料復(fù)合模連接墊板沖壓模具設(shè)計(jì) 加工中心支架沖孔復(fù)合

資源描述：: 連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合模】,加工中心移門(mén)支架,沖孔落料復(fù)合模,連接,墊板,沖壓,模具設(shè)計(jì),加工,中心,支架,沖孔,復(fù)合

展開(kāi)閱讀全文

溫馨提示:
1: 本站所有資源如無(wú)特殊說(shuō)明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
2: 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
3.本站RAR壓縮包中若帶圖紙，網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
5. 裝配圖網(wǎng)僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

裝配圖網(wǎng)所有資源均是用戶自行上傳分享，僅供網(wǎng)友學(xué)習(xí)交流，未經(jīng)上傳用戶書(shū)面授權(quán)，請(qǐng)勿作他用。

關(guān)于本文

本文標(biāo)題：連接墊板沖壓模具設(shè)計(jì)【加工中心移門(mén)支架】【沖孔落料復(fù)合?！?br /> 鏈接地址：http://m.appdesigncorp.com/p-12245240.html

點(diǎn)擊下載此資源

最新文檔

相關(guān)資源

相關(guān)搜索