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I 圓 筒 件 沖 壓 成 形 工 藝 與 模 具 設(shè) 計 摘 要 :本文首先論敘了我國目前沖壓模具制造技術(shù)發(fā)展現(xiàn)狀以及發(fā)展趨勢。正文部分 介紹了一種直筒形件的拉深模具設(shè)計，內(nèi)容主要包括：拉深原理分析、拉深工藝分析 及方案比較選擇、模具結(jié)構(gòu)的設(shè)計計算。在設(shè)計中充分利用了計算機(jī)輔助設(shè)計 （CAD/CAM)：用 AutoCAD2000 繪制了所有零件圖和裝配圖。 關(guān) 鍵 字 ： 模具，筒形件拉深，工藝分析，結(jié)構(gòu)設(shè)計 CYLINDER PARTS STAMPING FORMING II THCHNOLOGY AND DIE DESIGN ABSTRACT: This text talks about our country hurtles to press the molding tool manufacturing technical present condition and the development trends currently. Then the text part introduces a kind of design for drawing die which is used for the motor case body with frank tube shape, which is content include mainly: The principle analysis of Drawing, the technical analysis for Drawing, the scheme relatively chosen, design and calculate for the die structure. There have fully utilized CAD in the design CAD/CAM. Have drawn all part pictures and installation diagrams with AutoCAD2000. KEY WORDS: die，drawing ，the principle analysis，the structure design 目錄 III 1 緒論 ....................................................1 1.1 沖壓模具市場情況 .............................................1 1.2 沖壓成形工藝與理論研究 .......................................2 1.3 沖壓模具設(shè)計與制造 ...........................................2 2 直臂深圓筒拉深模具的設(shè)計思路 ............................4 3 筒形件拉深設(shè)計 ..........................................5 4 沖壓件的工藝性分析 ......................................6 5 沖壓件的工藝計算 ........................................7 5.1 確定俢邊余量 .................................................7 5.2 計算毛抷直徑 .................................................7 5.3 確定是否采用壓邊圈拉深 .......................................7 5.4 計算總的拉深系數(shù)，并判斷能否一次拉成 .........................8 5.5 確定拉深次數(shù) n ...............................................8 5.6 工藝方案的確定 ...............................................9 5.7 半成品尺寸的確定，計算各次拉深后的直徑 ......................10 5.7.1 工序件的直徑 nd.................................................10 5.7.2 確定各次拉深凸凹模的圓角半徑 ....................................10 5.8 計算各次拉深半成品高度 ......................................11 5.9 繪制拉深工序圖 ..............................................11 6 進(jìn)行必要的計算 .........................................13 6.1 計算壓邊力、拉深力 ..........................................13 6.1.1 計算壓邊力 ......................................................13 6.1.2 計算拉深力 ......................................................14 6.1.3 計算公稱壓力 ....................................................15 6.2 模具工作部分尺寸計算 .......................................16 6.2.1 模具間隙 ........................................................16 6.2.2 拉深模圓角半徑 ..................................................17 IV 6.2.3 凸凹模工作尺寸及公差 ............................................17 6.2.4 凸模通氣孔設(shè)計 ..................................................18 7 模具的總體設(shè)計 .........................................19 8 模具主要零部件的設(shè)計 ...................................20 8.1 拉深凸模與凹模的結(jié)構(gòu)設(shè)計 ....................................20 8.1.1 拉深凹模結(jié)構(gòu) ....................................................20 8.1.2 拉深凸模結(jié)構(gòu) ....................................................21 8.2 上下模座等零部件的設(shè)計 ......................................22 9 沖壓設(shè)備的選擇 .........................................24 10 繪制模具總裝圖(以第四次拉深模為例) ....................26 總結(jié) .....................................................28 致謝 .....................................................29 參考文獻(xiàn) .................................................30