【正文】 ........................................................................................... 7 ................................................................................................................... 7 確定零件毛坯的材料 ................................................................................................. 7 CA6140基準(zhǔn)面的選擇 ................................................................................................ 8 制定準(zhǔn)確合理的工藝路線 .......................................................................................... 8 零件的加工方法的選擇 : ............................................................................................ 8 .................................................................................................. 9 ............................................................................................................ 9 ................................................................................................................... 9 ................................................................................................................... 9 工序劃分的確定 ................................................................................................................... 9 確定切削用量及基本工時(shí) ....................................................................................................17 粗銑底平面 ..............................................................................................................18 精銑底平面 ...........................................................................................................18 粗銑燕尾 ................................................................................................................18 精銑燕尾 ..............................................................................................................19 粗銑Φ 80外端面 ....................................................................................................19 精銑Φ 80外端面 ...................................................................................................20 鉆底面Φ 12H7孔 ......................................................................................................20 M10螺紋孔 ........................................................................................21 粗車、精車Φ 52H7孔 .............................................................................................22 鉆、擴(kuò)鉆、 2 x Φ 6的兩側(cè)螺紋孔（通孔） ............................................................23 粗車、半精車、精車Φ 80與Φ 52兩端面 .................................................................24 ：切斷 .....................................................................................................................27 2 夾具一車床 .................................................................................................................................27 2． 1 車孔中心設(shè)計(jì)專用夾具分析 ..............................................................................................27 2． 2確定工件的定位方案，設(shè)計(jì)定位裝置 .................................................................................28 2． 3 車床專用夾具配重平衡計(jì)算 ..............................................................................................29 2． 4 確定工件的夾緊方案，設(shè)計(jì)夾緊裝置 ................................................................................30 2． 4 夾具與機(jī)床的連接方式及安裝基面 ....................................................................................33 2． 5 夾具的平衡 .......................................................................................................................34 2． 6 對(duì)夾具總體結(jié)構(gòu)的要求 .....................................................................................................34 5 2． 7 繪制夾具草圖，并標(biāo)注尺寸、公差及技術(shù)要求 ..................................................................34 夾具的精度分析 ..................................................................................................................35 3鉆床夾具的設(shè)計(jì) .............................................................................................................................37 3． 1 鉆孔中心設(shè)計(jì)專用夾具分析 ..............................................................................................37 3． 2確定工件的定位方案，設(shè)計(jì)定位裝置 .................................................................................37 3． 3 確定工件的夾緊方案，設(shè)計(jì)夾緊裝置 ................................................................................38 3． 4 夾具的平衡 .......................................................................................................................40 3． 5對(duì)夾具總體結(jié)構(gòu)的要求 ......................................................................................................40 繪制夾具草圖，并標(biāo)注尺寸、公差及技術(shù)要求 ....................................................................40 ..................................................................................................................41 4 運(yùn)動(dòng) 模擬與仿真 ............................................................................................................................42 結(jié)論： ..............................................................................................................................................45 謝辭： ..............................................................................................................................................46 參考文獻(xiàn) ： .......................................................................................................................................47 6 引言 畢業(yè)的綜合性能力的實(shí)踐與相關(guān)內(nèi)容的一些設(shè)計(jì)，是應(yīng)屆本科畢業(yè)生 在校的末期的一個(gè)教學(xué)環(huán)節(jié)。工藝工裝設(shè)計(jì) . 3 Abstract This graduation design is on CA6140 lathe nut (also more accurately can also be called a half nuts) design, including the following aspects: the design of ponents, calculation process and working time, two sets of fixture design, lathe, drilling machine, each group), the required s