【正文】 ............................................... 7 選用刀具 ......................................................................................................... 7 精品文檔 值得下載 第 5 章 確定機(jī)械加工 余量、工序尺寸及公差 ...................................... 8 第 6 章 確立切削用量及基本工時(shí) .............................................................. 9 工序 1切削用量及基本時(shí)間的確定 ............................................................. 9 6． 1． 1 切削用量 ............................................................................................................... 9 6． 1． 2 背吃刀量 ............................................................................................................... 9 6． 1． 3 定進(jìn)給量 f ........................................................................................................... 9 確定切削速度 v ..................................................................................................... 9 校驗(yàn)機(jī)床功率 ........................................................................................................ 10 基本時(shí)間 .................................................................................................................. 10 工序 4切削用量及基本時(shí)間的確定 ........................................................... 10 切削用量 ................................................................................................................. 10 背吃刀量 ............................................................................................................. 11 確定進(jìn)給量 f ......................................................................................................... 11 確定切削速度 v .................................................................................................... 11 基本時(shí)間 .................................................................................................................. 11 工序 5切削用量及基本時(shí)間的確定 ........................................................... 11 鉆孔切削用量 ........................................................................................................ 12 確定進(jìn)給量 f ......................................................................................................... 12 確定切削速度 v ................................................................................................... 12 確定基本時(shí)間 ........................................................................................................ 12 第 7 章 夾具體總體設(shè)計(jì) .............................................................................. 14 定位基準(zhǔn)的選擇 ........................................................................................... 14 夾具定位誤差分析 ....................................................................................... 15 切削力及夾緊力計(jì)算 ................................................................................... 16 切屑參數(shù)的設(shè)定 ........................................................................................... 17 鉆孔切削用量 ........................................................................................................ 17 確定進(jìn)給量 f ......................................................................................................... 17 確定切削速度 v ................................................................................................... 18 確定基本時(shí)間 ........................................................................................................ 18 夾具總體設(shè)計(jì) ............................................................................................... 19 精品文檔 值得下載 第 8 章 夾具結(jié)構(gòu)設(shè)計(jì) ................................................................................... 20 鉆模板 ........................................................................................................... 20 夾具體設(shè)計(jì) ................................................................................................... 20 轉(zhuǎn)盤 ............................................................................................................... 21 夾緊機(jī)構(gòu) ....................................................................................................... 22 鉆套 ............................................................................................................... 22 刀具的選擇 ................................................................................................... 23 夾具的設(shè)計(jì)及操作的簡要說明 ................................................................... 23 結(jié)構(gòu)特點(diǎn) ....................................................................................................... 23 第 9 章 設(shè)計(jì) 心得 ............................................................................................... 24 參考文獻(xiàn) ............................................................................................................... 25 附錄 工序卡 工藝