【正文】 I 目 錄 1 緒論 ................................................ 1 .................................................................................................................... 2 ........................................................................................................ 2 ...................................................................................... 2 CAD/CAM技術(shù)的發(fā)展情況 [13] ...................................................... 2 [11] .............................................................. 3 .................................................................................. 3 ................................................................................................ 3 2 零件沖壓工藝分析 ....................................... 5 [2] ................................................................. 5 [3] ................................................................................. 5 [6] ............................................................................................. 5 3 沖裁方案的確定與排樣 .................................... 6 ............................................................................................ 6 .................................................................................................... 6 ...................................................................................................... 6 材料的利用率 [1] .......................................................................................... 7 4 工藝計(jì)算 [2] ............................................ 9 [2] ......................................................................................................... 9 [10] ........................................................................................................ 9 彎曲件展開(kāi)長(zhǎng)度計(jì)算 ................................................................................. 9 ................................................................................ 10 ............................................................................................ 10 ，推件力和頂件力的計(jì)算 [2] ....................................................................... 12 [2] ............................................................................................... 13 [2] ........................................................................................... 13 .......................................................................................... 13 沖孔φ 5 ..................................................................................................... 13 落料零件 [2] ................................................................................................ 14 [10] ...................................................................................................... 17 II 彎曲模設(shè)計(jì)的前期準(zhǔn)備 ........................................................................... 17 彎曲模具的組成 ....................................................................................... 17 閱讀彎曲件產(chǎn)品圖 ................................................................................... 17 分析彎曲件工藝 ....................................................................................... 17 .................................................................................... 18 .................................................................... 18 [1] ................................................................................................... 18 5 模具的結(jié)構(gòu)方案設(shè)計(jì) ..................................... 20 .......................................................................................................... 20 .................................................................................................. 21 ........................................................................................ 21 [1] ............................................................................. 22 ........................................................................................ 23 凹 模的結(jié)構(gòu)設(shè)計(jì) [2] ................................................................................. 24 ........................................................................ 25 .................................................................................... 26 [1] ..................................................................................... 27 結(jié)構(gòu)設(shè)計(jì) [1] ................................................................................. 27 [1] ......................................................................... 28 [1] ............................................................................... 29 [1] ....................................................................................... 29 .............................................................................................. 30 [4] ....................................................................... 31 6 模具零件的固定方法、安裝與工作過(guò)程 [3] ........................ 32 .............................................................................................. 32 凸模的固定 ............................................................................................... 32 凹模的固定 ............................................................................................... 32 ........................................................................................ 32 ................................................................................................ 33 ............................................................................ 33 ................................................................................................ 33 [4] ......................................................................... 34 .................................................................................................. 34 ..............................