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目錄 1 緒 論 ......................................................................................................................................1 1.1 國內(nèi)模具的現(xiàn)狀和發(fā)展趨勢 ...........................................1 1.1.1 國內(nèi)模具的現(xiàn)狀 .................................................1 1.1.2 國內(nèi)模具的發(fā)展趨勢 .............................................2 1.2 國外模具的現(xiàn)狀和發(fā)展趨勢 ...........................................3 1.3 限位板落料級進(jìn)模具設(shè)計(jì)與制造方面 ...................................4 1.3.1 限位板沖孔落料級進(jìn)模具設(shè)計(jì)的設(shè)計(jì)思路 ...........................4 1.3.2 限位板模具設(shè)計(jì)的進(jìn)度 ...........................................4 2 沖壓件工藝分析 ......................................................................................................................5 3 工藝方案的確定 .....................................................................................................................7 3.1 方案的擬定 .....................................................................................................................7 3.2 方案比較 .........................................................................................................................7 3.3 方案選定 .........................................................................................................................7 4 必要的工藝計(jì)算 .....................................................................................................................8 4.1 排樣設(shè)計(jì) .........................................................................................................................8 4.1.1 排樣方案擬定 ..........................................................................................................8 4.1.2 排樣方案比較 ..........................................................................................................8 4.1.3、方案選定 ..............................................................................................................11 4.2 計(jì)算凸、凹模工作部分的尺寸 ...................................................................................11 4.2.1 沖孔 30?凸、凹刃口尺寸的計(jì)算 ........................................................................11 4.2.2 外形落料凸、凹模刃口尺寸計(jì)算 ........................................................................12 4.3 沖壓力的計(jì)算 ...............................................................................................................13 4.3.1 沖孔力、落料力的計(jì)算 .........................................................................................13 4.3.2 沖孔、落料時的推件力、卸料力計(jì)算 .................................................................13 4.3.3 總的沖壓力計(jì)算： ................................................................................................14 4.4 壓力中心的計(jì)算 ...........................................................................................................14 5 模具的總體設(shè)計(jì) ...................................................................................................................17 6 模具主要零部件的結(jié)構(gòu)設(shè)計(jì) ...............................................................................................19 6.1 凸模、凹模的結(jié)構(gòu)設(shè)計(jì) ...............................................................................................19 6.1.1 沖孔凸模的結(jié)構(gòu)設(shè)計(jì)。 .........................................................................................19 6.1.2 落料凸模的結(jié)構(gòu)設(shè)計(jì) ............................................................................................19 6.1.3 凹模板的設(shè)計(jì) ........................................................................................................21 6.1.4 導(dǎo)正銷的設(shè)計(jì) ........................................................................................................21 6.1.5 固定擋料銷位置的確定 .........................................................................................22 6.1.6 導(dǎo)料板的設(shè)計(jì) ........................................................................................................23 6.1.7 卸料板的設(shè)計(jì) ........................................................................................................23 6.1.8 始用擋料銷位置確定 .............................................................................................23 6.2 模架的選擇 ...................................................................................................................24 6.3 模具的閉合高度 ............................................................................................................24 7 沖壓設(shè)備的選擇 ...................................................................................................................25 8 模具總裝圖的繪制 ...............................................................................................................26 9 設(shè)計(jì)總結(jié) ...............................................................................................................................27 致 謝 .......................................................................................................................................28 參考文獻(xiàn) ...................................................................................................................................29