【正文】 畢業(yè)設(shè)計(jì) 題 目 汽車(chē)風(fēng)扇傳動(dòng)帶盤(pán)的沖壓工藝與模 具設(shè)計(jì) 學(xué) 院 機(jī)械工程學(xué)院 專(zhuān) 業(yè) 機(jī)械設(shè)計(jì)制造及其自動(dòng)化專(zhuān)業(yè) 姓 名 學(xué) 號(hào) 20200402042 指導(dǎo)教師 二 OO 八 年 六 月 日 汽車(chē)風(fēng)扇傳動(dòng)帶盤(pán)的沖壓工藝與模具設(shè)計(jì) Stamping process and shaping die design for the automobile fan 專(zhuān) 業(yè)：機(jī)械設(shè)計(jì)制造及其自動(dòng)化 學(xué) 生：劉希華 指導(dǎo)教師：張明哲 濟(jì)南大學(xué)機(jī)械工程學(xué)院 二零零 八 年 六 月 1 目 錄 摘 要 ............................................................i ABSTRACT ...........................................................ii 第一章 緒論 .........................................................1 沖壓成形特點(diǎn) ..........................................................................................1 沖壓工序的分類(lèi) ......................................................................................1 模具發(fā)展的現(xiàn)狀和趨勢(shì) ..........................................................................2 模具的發(fā)展趨勢(shì) ...........................................................................2 第二章 零件的工藝性分析及方案選擇 ...................................3 汽車(chē)風(fēng)扇傳動(dòng)帶盤(pán)零 件圖分析 ..............................................................3 汽車(chē)風(fēng)扇傳動(dòng)帶盤(pán)零件工藝 ..................................................................3 盤(pán)形件的尺寸精度和表面粗糙度 ..........................................................3 零件的生產(chǎn)批量 ......................................................................................4 材料的利用率 ..........................................................................................4 零件的排樣 ..............................................................................................4 確定搭邊值 ....................................................................................4 確定條料毛坯尺寸的計(jì)算 ............................................................5 步距 ................................................................................................6 條料的利用率 ...............................................................................6 畫(huà)出 排樣圖 ...............................................................................................6 畫(huà)出零件成形步驟圖 ................................................................................7 方案種類(lèi) ...................................................................................................7 方案的分析 .............................................................................................7 工藝方案的確定 ....................................................................................8 第三章 零件的基本工序分析 ...........................................9 落料工序 ..................................................................................................9 拉伸工序 ..................................................................................................9 判斷窄、寬凸緣 ...........................................................................10 拉伸次數(shù)的確定 ...........................................................................10 翻邊工序 ................................................................................................12 2 脹形工序 .................................................................................................13 擠壓工序 ................................................................................................13 第四章 落料拉伸復(fù)合模的設(shè)計(jì) ........................................14 沖壓力計(jì)算 ............................................................................................14 計(jì)算落料力 ...................................................................................14 第一次拉深工序 ..........................................................................14 壓邊力 ..........................................................................................15 ..........................................................15 計(jì)算凸凹模刃口尺寸 .....................................................................16 落料凸凹模尺寸 ..........................................................................16 拉深凸凹模尺寸 ..........................................................................17 凸凹模設(shè)計(jì) .....................................................................................17 壓力設(shè)備的選擇及模具的閉合高度 .....................................................18 壓力機(jī)選擇 ..................................................................................18 模具的閉合高度 .........................................................................18 模具總體設(shè)計(jì)及主要部件設(shè)計(jì) .....................................................19 卸料彈簧的設(shè)計(jì)計(jì)算 ....................................................................19 第五章 第二次拉伸模具設(shè)計(jì) ..........................................20 第二次拉伸力計(jì)算 ................................................................................20 壓邊力及壓邊裝置 .................................................................................20 凸凹模工作部分尺寸設(shè)計(jì) .....................................................................20 二次拉深凸凹模 ..........................................................................20 模具總體設(shè)計(jì) ..........................................................................................21 模具類(lèi)型的選擇 ..........................................................................21 定位方式的選擇 .........................................................................21 第六章 翻邊模設(shè)計(jì) ..................................................22 翻邊力計(jì)算 ............................................................................................22 壓力機(jī)的選擇 ..........................................................................................22 凸、凹模形狀 ......................