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目錄 1 緒論 ....................................................1 2 沖壓件工藝分析 ..........................................2 2.1 材料分析 ....................................................2 2.2 零件結(jié)構(gòu) ....................................................3 2.3 尺寸精度 ....................................................3 2.4 毛坯尺寸展開(kāi) ................................................5 3 沖裁方案的確定 ..........................................6 3.1 沖裁工藝方案的確定 ..........................................6 3.2 沖裁工藝方法的選擇 ..........................................6 4 模具總體結(jié)構(gòu)的確定 ......................................8 4.1 模具類(lèi)型的選擇 ..............................................8 4.2 送料方式的選擇 ..............................................8 4.3 定位方式的選擇 ..............................................8 4.4 卸料、出件方式的選擇 ........................................8 4.5 導(dǎo)向方式的選擇 ..............................................8 5 工藝參數(shù)計(jì)算 ...........................................10 5.1 排樣方式的選擇 .............................................10 5.1.1 排樣及搭邊值的計(jì)算 .............................................10 5.1.2 步距的計(jì)算 .....................................................10 5.1.3 條料寬度的確定 .................................................11 5.1.4 材料利用率的計(jì)算 ...............................................11 5.2 沖壓力的計(jì)算 ...............................................12 5.2.1 沖裁力的計(jì)算 ...................................................12 5.2.2 彎曲力的計(jì)算 ...................................................13 河南機(jī)電高等專(zhuān)科學(xué)校畢業(yè)設(shè)計(jì)說(shuō)明書(shū) 5.2.3 卸料力與推件力的計(jì)算 ...........................................14 5.2.4 總沖壓力的計(jì)算 .................................................15 5.3 壓力機(jī)噸位選擇 .............................................15 5.3.1 沖壓設(shè)備類(lèi)型的選擇 ............................................15 5.3.2 確定壓力機(jī)設(shè)備的規(guī)格 ..........................................16 6 刃口尺寸計(jì)算 ...........................................19 6.1 沖裁間隙的確定 .............................................19 6.2 刃口尺寸的計(jì)算及依據(jù)與法則 .................................21 6.3 彎曲刃口尺寸計(jì)算 ...........................................23 7 主要零部件設(shè)計(jì) .........................................24 7.1 凹模設(shè)計(jì) ...................................................24 7.1.1 凹模外形的確定 .................................................24 7.1.2 凹模刃口結(jié)構(gòu)形式的選擇 .........................................26 7.1.3 凹模精度與材料的確定 ...........................................26 7.2 凸模的設(shè)計(jì) .................................................26 7.2.1 凸模結(jié)構(gòu)的確定 .................................................26 7.2.2 凸模高度的確定 .................................................26 7.2.3 凸模材料的確定 .................................................27 7.2.4 凸模精度的確定 .................................................27 7.3 卸料板的設(shè)計(jì) ...............................................27 7.3.1 卸料板外型設(shè)計(jì) .................................................27 7.3.2 卸料板材料的選擇 ...............................................27 7.3.3 卸料板整體精度的確定 ...........................................27 7.4 固定板的設(shè)計(jì) ...............................................28 7.5 墊板的設(shè)計(jì) .................................................28 7.6 上下模座、模柄的選用 .......................................28 7.6.1 上下模座的選用 .................................................28 7.7 模柄的選用 .................................................29 7.8 螺釘、銷(xiāo)釘?shù)倪x用 ...........................................30 8 沖壓設(shè)備的校核與選定 ...................................31 8.1 沖壓設(shè)備的校核 .............................................31 8.2 沖壓設(shè)備的選用 .............................................31 結(jié)論 .....................................................32 參考文獻(xiàn) .................................................33