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目 錄 1 緒 論 .......................................................................................................................1 1.1 概述 ................................................................................................................................................................1 1.2 沖壓模具的特點 ............................................................................................................................................1 1.3 拉深工藝特點 ................................................................................................................................................2 1.4 有凸緣筒形件拉深模具設(shè)計與制造方面 ....................................................................................................2 2 有凸緣筒形件沖壓模設(shè)計 ..........................................................................................3 2.1 工藝分析 ........................................................................................................................................................3 2.1.1 計算毛坯尺寸 .........................................................................................................................................3 2.1.2 拉深次數(shù)的確定 .....................................................................................................................................4 2.2 工藝方案確定 ................................................................................................................................................5 2.3 必要的工藝計算 ............................................................................................................................................5 2.3.1 坯料分析 .................................................................................................................................................5 2.3.2 確定是否用壓邊圈 .................................................................................................................................6 2.3.3 實際拉深直徑 .........................................................................................................................................6 2.3.4 拉深凸模與凹模的圓角半徑 .................................................................................................................7 2.3.5 計算校核拉深高度 .................................................................................................................................8 2.3.6 壓力中心計算 .........................................................................................................................................8 2.3.8 卸料力的計算 .........................................................................................................................................8 2.3.9 拉深力的計算 .........................................................................................................................................9 2.3.10 壓邊力的計算 .......................................................................................................................................9 3 模具工作部分設(shè)計 ....................................................................................................11 3.1 工件零件結(jié)構(gòu)尺寸的確定 ..........................................................................................................................11 3.1.2 凹模板長度 L 的計算 ..........................................................................................................................11 3.1.3 其他零件結(jié)構(gòu)尺寸 ...............................................................................................................................11 3.2 工件刃口尺寸的計算 ..................................................................................................................................12 3.2.2 拉深凸模與凹模的尺寸計算 ...............................................................................................................12 4 模具的總體結(jié)構(gòu)設(shè)計 ................................................................................................16 4.1 模具零件的結(jié)構(gòu)設(shè)計 ..................................................................................................................................16 4.1.1 導柱、導套 ...........................................................................................................................................16 4.1.2 模柄 .......................................................................................................................................................16 4.1.3 模具工作部分的計算 ...........................................................................................................................16 4.1.4 模具的閉合高度 ...................................................................................................................................17 4.2 模具總裝圖 ..................................................................................................................................................19 4.3 壓力機的類型選定 ......................................................................................................................................20 4.4 機械加工工藝過程卡 ..................................................................................................................................21 結(jié)論 ............................................................................................................................23 致謝 ............................................................................................................................24 參考文獻 .....................................................................................................................25
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