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墊片畢業(yè)設(shè)計(jì)要求:1. 撰寫(xiě)畢業(yè)設(shè)計(jì)字?jǐn)?shù)在折合漢字在12000字以上,要求打印。(4)成形模 是將毛坯或半成品工件按圖凸、凹模的形狀直接復(fù)制成形,而材料本身僅產(chǎn)生局部塑性變形的模具。 Finally, drawing parts was designed with Auto CAD and Pro /E software.According to L board pieces of stamping mound design, the design idea is cleared, and is familiar with and master the mold design process and determine the stamping forming process and the various specific part of the detailed calculated and checked. So designed structure can ensure reliable mound work using and ensure the cooperation with other ponents. In the drawing die drawings and parts graph process, we are familiar with the operation of the drawing software.Overall, I Successfully pleted the graduation design and has basically master relevant knowledge of stamping mound design .Key words : stamping mound。利用該概念開(kāi)發(fā)出來(lái)的第三代機(jī)械CAD/CAE/CAM產(chǎn)品Pro/Engineer軟件能將設(shè)計(jì)至生產(chǎn)全過(guò)程集成到一起,讓所有的用戶(hù)能夠同時(shí)進(jìn)行同一產(chǎn)品的設(shè)計(jì)制造工作,即實(shí)現(xiàn)所謂的并行工程。(4)有利于國(guó)內(nèi)和國(guó)際的合作與交流技術(shù)名詞術(shù)語(yǔ)、技術(shù)條件的規(guī)范化、標(biāo)準(zhǔn)化將有利于國(guó)內(nèi)、外在商業(yè)貿(mào)易和科學(xué)技術(shù)等方面進(jìn)行合作與交流,增強(qiáng)國(guó)家的技術(shù)經(jīng)濟(jì)實(shí)力。工件的尺寸大到汽車(chē)的覆蓋件,小到電子儀器上的彈性接觸件。 也許,我的學(xué)生生涯從此就會(huì)結(jié)束,但是學(xué)習(xí)的道路卻還將持續(xù)下去,畢竟“學(xué)無(wú)止境”。完成通孔特征的創(chuàng)建。創(chuàng)建模柄的安裝槽。它廣泛應(yīng)用于電子、機(jī)械、模具、工業(yè)設(shè)計(jì)、汽車(chē)、機(jī)車(chē)、自行車(chē)、航天。排樣方式的確定及計(jì)算工件與邊緣塔邊 a=兩工件間的塔邊 a1=3工步確定及成形計(jì)算落料力(kN)L4M抗剪強(qiáng)度320MPa面積A=,取1883,取203mm,沖孔力(kN)卸料力(kN)推廢料力(kN) n=3 總沖壓力(kN)零件關(guān)于y軸對(duì)稱(chēng),可得=0,由CAD作圖可知壓力中心的坐標(biāo)A為(0,15) ,(1)孔的沖裁刃口尺寸計(jì)算為了保證模具的間隙小于最大合理間隙值,所以;可得凸模刃口尺寸: 凹模刃口尺寸: 同理,求得刃口尺寸,即 凸模極限下偏差,凹模極限上偏差 (2)落料凹模尺寸工件外形四條直線與四段圓弧相切R25圓弧R11圓?。?)各中心尺寸根據(jù)公式()和公差取,得,表1 刃口尺寸計(jì)算結(jié)果磨損變化工件尺寸X或或凹模(變大)按凹模尺寸配制,凸模(變小)中心距(不變)60/8=30/8=選擇型號(hào)為JD21100開(kāi)式雙柱固定臺(tái)壓力機(jī)能滿(mǎn)足使用要求,其技術(shù)參數(shù)見(jiàn)表表2 壓力機(jī)技術(shù)參數(shù)規(guī)格數(shù)值規(guī)格數(shù)值公稱(chēng)壓力/kN1000工作臺(tái)尺寸/mm前左600滑塊行程/mm可調(diào)(10~120)左右1000滑塊行程次數(shù)/(次/min)75工作臺(tái)孔尺寸/mm前后300最大封閉高度/mm400左右420封閉高度調(diào)節(jié)量/mm85墊板尺寸/mm厚度100滑塊中心線至床身距離/mm325直徑200立柱距離/mm480模柄孔尺寸/mm直徑60滑塊底面尺寸/mm前后380深度80左右500模具類(lèi)型的選擇由沖壓工藝分析可知,采用復(fù)合模沖裁,為倒裝式復(fù)合模定位方式的選擇 采用條料,采用導(dǎo)料銷(xiāo),無(wú)側(cè)壓裝置卸料,出件方式的選擇加工工料厚1mm,相對(duì)較薄,沖裁后的工藝廢料用彈性卸料板卸料。(4)冷沖壓可以加工壁薄、重量輕、剛性好、形狀復(fù)雜的零件,為其他加工方法所不能替代。(1)沖壓加工的生產(chǎn)效率高,且操作方便,易于實(shí)現(xiàn)機(jī)械化與自動(dòng)化。沖壓是材料壓力加工或塑性加工的主要方法之一,隸屬于材料成型工程。但不論何種類(lèi)型的沖模,都可看成是由上模和下模兩部分組成,上模被固定在壓力機(jī)工作臺(tái)或墊板上,是沖模的固定部分。該零件包括落聊,沖孔兩道工序,可以采用三種工藝方案方案一:采用簡(jiǎn)單模,但是由于零件工步比較多,需要幾副模具。卸料板采用45鋼制造,淬火硬度為(40~45)HRC。選擇零件表面為草繪平面,利用直線命令繪制長(zhǎng)為190mm,寬為104mm的不規(guī)則圖形,如圖所示單擊確定,選擇切除深度為3mm。完成如圖單擊孔命令,選擇直徑為10mm的通孔,創(chuàng)建銷(xiāo)釘孔,如圖完成兩個(gè)銷(xiāo)釘孔的創(chuàng)建后,完成落料凹模的三維建模。此次畢業(yè)設(shè)計(jì)也是我們從大學(xué)畢業(yè)生走向未來(lái)工程師重要的一步。他們?cè)谝黄鸲冗^(guò)了很多快樂(lè),開(kāi)心的日子。 沖壓模具標(biāo)準(zhǔn)化沖模標(biāo)準(zhǔn)化是指在模具設(shè)計(jì)與制造中應(yīng)遵循和應(yīng)用的技術(shù)規(guī)范與基準(zhǔn)。雖然如此,我國(guó)的沖壓模具設(shè)計(jì)制造能力與市場(chǎng)需要和國(guó)際先進(jìn)水平相比仍有較大差距。真空處理技術(shù)、實(shí)型鑄造技術(shù)、刃口堆焊技術(shù)等日趨成熟。Pro/Engineer建立在工作站上,系統(tǒng)獨(dú)立于硬件,便于移植。通過(guò)對(duì)L型板件的沖壓模具的設(shè)計(jì),明確了設(shè)計(jì)思路,熟悉和掌握了模具設(shè)計(jì)全過(guò)程,確定了沖壓成型工藝過(guò)程并對(duì)各個(gè)具體部分進(jìn)行了詳細(xì)的計(jì)算和校核。2)精度高,質(zhì)量穩(wěn)定。隨著三維CAD技術(shù)的日益成熟,為模具設(shè)計(jì)提供了最有潛力的工具。畢業(yè)設(shè)計(jì)(論文)進(jìn)度安排:序號(hào)畢業(yè)設(shè)計(jì)(論文)各階段內(nèi)容時(shí)間安排備注1調(diào)查研究,查找文獻(xiàn)和資料. 2翻譯外文資料、撰寫(xiě)開(kāi)題報(bào)告2012. . 3撰寫(xiě)文獻(xiàn)綜述4學(xué)習(xí)軟件、撰寫(xiě)論文5論文答辯課題信息:課題性質(zhì): 設(shè)計(jì)√ 論文□ ?課題來(lái)源: 教學(xué)□ 科研□ 生產(chǎn)□ 其它√發(fā)出任務(wù)書(shū)日期: 20111205 指導(dǎo)教師簽名: 2011 年 12 月 05 日教研室意見(jiàn):教研室主任簽名:年 月 日 學(xué)生簽名:外文原文Abstract:Die designing is a demanding and hard work.To design a separate die for each product is time consuming and expensive task.This paper presents an idea of sets of standard reference dies.it gives a concept of flexible die designing using a reference standard die designed in a popular mercial CAD/CAM software—Pro/Engineer.Rather than designing a separate die for each part,just update the die design by selecting the die dimensions as required.The use of this concept will prove to reduce time and cost of product in manufacturing industry. Key words:die;flexible die designing system ;standardization;Pro/E;secondary developmentAt present, the industrial developed countries and regions in the mold industry has been gradually standardize and serialization. In China, although the majority die within the enterprises have business standards, but generally not high degree of standardization, standardization of stamping die in the dielimited parts of the parts. To achieve real savings stamping die design time and shorten the processing cycle, cost savings, reduce design and manufacturing staff workload purposes, it needs to develop a flexible stamping die design system. At the same time, stamping die serialization of the scope of standardization and can not be confined to diepart of the fixed panels, boards, the top plate unloading device monly used ponents such as stamping or even die structure, we should achieve serialization and standardization.As CAD / CAM technology in the design and manufacture die in the course of extensive application, it should first be standardized stamping die from the CAD system began. Some largescale mercialization of the CAD / CAM software, such as Pro / E, UG, and so on. Have developed a specialized injection mold design package. And stamping die design for the special software, users need to be developed.l The application tools Pro / E in stamping die design flexibility in the system development Pro / Engineer by the United States has developed a set of PTC CAD / cAM / CAE software. Pro / E using a single database And featurebased, the design parameters of the model, provides users with 1 The development is very convenient for stamping die flexible system of tools juice Family Table Fanaily Fable known as the Family Table, the structure used to create the same or similar parts of the size and characteristics of the standardized database tables, is devoted to the establishment of a standard parts library tool. The use of the former first family table to create a generic representati