【正文】 ................................ 3 國外模具發(fā)展概況 ............................................................................................. 4 CAD 軟件介紹 ............................................................................................................. 5 課題的主要研究內(nèi)容 ................................................................................................... 5 第 2 章 沖壓工藝設(shè)計(jì)和沖壓力的計(jì)算 .................................................................................... 7 沖壓件（防塵蓋）簡介 ................................................................................................ 7 確定沖壓工藝方案 ....................................................................................................... 8 工件的毛坯尺寸計(jì)算 ................................................................................................... 9 確定其搭邊值 .............................................................................................................10 確定排樣圖 ................................................................................................................10 利用率的計(jì)算 ...................................................................................................10 確定其排樣圖 ................................................................................................... 11 計(jì)算各工序沖壓力 ...................................................................................................... 11 本章小結(jié) ....................................................................................................................13 第 3 章 落料、沖孔、拉深、翻邊復(fù)合模的設(shè)計(jì) .....................................................................14 模具零件刃口尺寸計(jì)算 ...............................................................................................14 尺寸計(jì)算原則 ...................................................................................................14 模具間隙的選擇 ................................................................................................15 尺寸分類 ..........................................................................................................15 凸、凹模尺寸計(jì)算 ............................................................................................16 沖模工作零件的設(shè)計(jì)與計(jì)算 ........................................................................................17 凸模的計(jì)算和校核 ............................................................................................17 凹模的計(jì)算和校核 ............................................................................................20 凸凹模的計(jì)算和校核 .........................................................................................21 本章小結(jié) ....................................................................................................................21 第 4 章 模具結(jié)構(gòu)零件設(shè)計(jì) ....................................................................................................22 確定模具的結(jié)構(gòu)形式 ..................................................................................................22 正、倒裝結(jié) 構(gòu)的選擇 .........................................................................................22 定位方式的選擇 ................................................................................................22 卸料、出件方式的選擇 ............................................................................................23 導(dǎo)向方式的選擇 .......................................................................................................23 沖模零件的設(shè)計(jì) .........................................................................................................23 第 2頁 共 38 頁 導(dǎo)向零件的設(shè)計(jì) ................................................................................................ 23 卸料裝置 .......................................................................................................... 25 承料裝置 .......................................................................................................... 25 擋料和導(dǎo)正裝置 ................................................................................................ 26 定位裝置 .......................................................................................................... 26 出件裝置 .......................................................................................................... 27 固定板 .............................................................................................................. 28 墊板 ................................................................................................................. 28 模柄 ................................................................................................................. 28 螺釘?shù)倪x擇 ..................................................................................................... 29 上下模板（模座） ........................................................................................... 29 本章小結(jié) .................................................................................................................... 30 第 5 章 設(shè)備的選擇 ................................................................................................................ 31 模具的壓力中心 ......................................................................................................... 31 模具閉合高度的確定 .................................................................................................. 32 壓力機(jī)的選取 ............................................................................................................. 33 設(shè)備類型的選取 ................................................................................................ 33 設(shè)備規(guī)格的選擇 ................................................................................................ 33 本章小結(jié) .................................................................................................................... 34 第 6 章 結(jié)論 ............................................................................................................