【正文】 ........................................................................... 4 加工方案的確定 .................................................................................................................. 4 沖壓方案的確定 .................................................................................................................. 4 沖壓方案 ........................................................................................................................... 4 加工方案的比較 ............................................................................................................... 5 主要設(shè)計(jì)計(jì)算 ...................................................................................................................... 5 沖裁件尺寸計(jì)算 ............................................................................................................... 5 排樣方式的確定和計(jì)算 ................................................................................................... 5 板料寬度和導(dǎo)料板間距計(jì)算 ........................................................................................... 7 壓力中心的確定 ............................................................................................................... 8 沖裁力的計(jì)算 ................................................................................................................... 9 壓力機(jī)的選擇 ................................................................................................................. 10 模具刃口尺寸的計(jì)算 ........................................................................................................ 10 落料 ................................................................................................................................ 10 沖孔 ................................................................................................................................. 12 模具尺寸示意圖 ................................................................................................................ 13 第 3 章 模具零部件結(jié)構(gòu)的設(shè)計(jì) .......................................................................................... 15 凹模的設(shè)計(jì) ....................................................................................................................... 15 凹模類型 ......................................................................................................................... 15 卸料裝置的設(shè)計(jì)與計(jì)算 ................................................................................................. 16 導(dǎo)板厚度 ......................................................................................................................... 17 凸模的設(shè)計(jì) ........................................................................................................................ 17 凸模固定板和固定方式 ................................................................................................. 17 凸模墊板 ......................................................................................................................... 17 模柄的結(jié)構(gòu) ..................................................................................................................... 17 凸模 ................................................................................................................................. 18 凸模、凹模的結(jié)構(gòu) ............................................................................................................ 18 模架的選擇 ........................................................................................................................ 19 模具裝配示意圖 ................................................................................................................ 19 第 4 章 彎 曲工藝設(shè)計(jì) ........................................................................................................ 19 彎曲零件的工藝分析 ........................................................................................................ 20 彎曲件結(jié)構(gòu)分析 ............................................................................................................. 20 彎曲直邊高度 ................................................................................................................. 20 零件最小孔邊距 ............................................................................................................. 20 彎曲半徑 ......................................................................................................................... 20 彎曲模的設(shè)計(jì) .................................................................................................................... 20 彎曲工藝計(jì)算 .................................................................................................................... 21 零件尺 寸計(jì)算 ................................................................................................................. 21 彎曲力的計(jì)算 ................................................................................................................. 21 校正彎曲力 ..................................................................................................................... 21 頂件力計(jì)算 ..................................................................................................................... 21 公稱彎曲壓 力 ................................................................................................................. 22 彎曲壓力機(jī)選擇 ............................................................................................................. 22 總 結(jié) .................................................................................................................................. 23 參考文獻(xiàn) .................................................................................................................................. 23 致 謝 ...................................................