【正文】 ...3 尺寸精度...................................................3第三章沖裁方案的確定..............................................5 沖裁工藝方案的確定.........................................5 沖裁工藝方法的選擇.........................................5第四章模具總體結構的確定..........................................6 模具類型的選擇.............................................6 送料方式的選擇.............................................6 定位方式的選擇.............................................6 卸料方式的選擇.............................................6 導向方式的選擇.............................................6第五章工藝參數(shù)計算................................................7 排樣方式的選擇.................................................7 搭邊值的確定.............................................7 材料利用率的確定.........................................8 沖壓力的計算..................................................9 總沖裁力的計算...........................................10 卸料力、推件力的計算.....................................10 總沖壓力的計算...........................................11 初選壓力機...............................................11 壓力中心的確定...........................................12第六章刃口尺寸計算................................................14 沖裁間隙的確定............................................17 刃口尺寸的計算及依據(jù)與法則................................18第七章主要零部件設計..............................................19 凹模設計.......................................................19 凹模外形的確定...........................................19 凹模刃口結構形式的選擇...................................19 凹模精度與材料的確定.....................................19 凸模的設計.....................................................22 凸模結構的確定...........................................22IV 凸模材料的確定...........................................22 凸模精度的確定...........................................22 凸模高度的確定...........................................22 凸凹模設計.....................................................23 凸凹模外形的確定.........................................23 凸凹模材料的選取.........................................23 凸凹模精度的確定.........................................23 凸凹模壁厚的確定.........................................23 凸凹模洞口類型的選取.....................................23IV 凸凹模尺寸的設計 .....................................24 定位零件的選用 .............................................25 卸料裝置的選定 .............................................25 卸料裝置的選用 .......................................25 卸料螺釘?shù)倪x用 .......................................26 卸料板外型設計 .......................................26 卸料板材料的選擇 .....................................26 卸料板的結構設計 .....................................26 卸料板整體精度的確定 .................................26 卸料橡膠的選用 .......................................26 推件裝置的選定 .............................................28 推件塊的設計 .........................................29 推板的選用 ...........................................30 推桿的選用 ...........................................30 上下模座的選用 .............................................31 連接及固定零件的選用 .....................................31 螺釘與銷釘?shù)倪x用 .....................................31 模柄的選用 ...........................................31 凸模固定板的設計 .....................................32 凸凹模固定板的設計 ...................................33 墊板的設計 .........................