【正文】 車削 Φ45 孔夾具設(shè)計 英文題目 The automobile gear box body machinefinishing craft and drills Φ45 hole jig designs and analyzes the jig body stress 院 系 機(jī)械與材料工程學(xué)院 專 業(yè) 機(jī)械設(shè)計制造及自動化 摘 要 機(jī) 械工業(yè)有著廣闊的領(lǐng)域，特別是近年來機(jī)械工業(yè)領(lǐng)域正向著高精度、高質(zhì)量、高效率、低成本方向發(fā)展。 機(jī)床夾具是夾具中的一種，將其固定到機(jī)床上，可以使被加工件對刀具與機(jī)床保持正確的相對位置，并克服切削力的影響。45 孔夾具設(shè)計并分析夾具體受力。45 hole jig designs and analyzes the jig body instruction booklet divides into following several parts: First part:Components analysis, Second part:Components technological process design,Third part:Machining allowance and working procedure size, Fourth part:Jig design,Plan engineering plat,Fifth part:Jig body stress analysis. The tree seed exhaustive row has listed each processing working procedure, In each processing working procedure,Also detailed has listed each cutting manhour,All has carried on the precise putation, The engine bed needs which to each processing working procedure carries on the reasonable choice,Also piled Machinefinishing Technological process Card alone to bind the book. 【 Key words】 Mechanical industry； Jig； Processing craft I 目 錄 前言 …………………………………………………………………… . 第 1 章 零 件的設(shè)計 ......................................................................................................... 1 零件的作用 ..................................................... 1 零件的工藝分析 ................................................. 1 平面加工 ............................................................................................................ 1 孔的加工 ............................................................................................................ 1 第 2 章 工藝規(guī)程的設(shè)計 ................................................................................................. 3 確定毛坯制造形式 ............................................... 3 零 件材料的選擇 ................................................................................................. 3 確定生產(chǎn)類型的依據(jù) .......................................................................................... 3 基面的選擇 ..................................................... 3 粗基準(zhǔn)選擇原則 ................................................................................................. 3 精基準(zhǔn)的選擇原則 .............................................................................................. 4 零件各加工表面順序安排 ......................................... 4 主要表面與次要表面的加工順序安排原則 ........................................................... 4 熱處理工序的安排 .............................................................................................. 4 輔助工序的安排 ................................................................................................. 4 檢驗工序的安排 ................................................................................................. 4 工藝路線的擬定 ................................................. 5 工藝方案一： ..................................................................................................... 5 工藝路線二： ..................................................................................................... 5 工藝方案的比較和分析： ................................................................................... 6 第 3 章 機(jī)械加工余量，工序及毛坯尺寸的確定 ......................................................... 8 毛坯余量與工序余量的確定 ....................................... 8 平面加工 ............................................................................................................ 8 孔加工 ............................................................................................................... 9 切削用量的選擇 ................................................ 10 粗 加工切削用量的選擇原則 .............................................................................. 10 精加工時切削用量的選擇原則 .......................................................................... 10 II 工時定額的確定（單件時間定額） ................................................................... 11 用查表法確定余用計算方法相結(jié)合而得到的切削用量， 并計算切削力，作為以后核算夾具之用 ............................................................................................................ 11 第 4 章 夾具設(shè)計 ........................................................................................................... 15 設(shè)計要求 ...................................................... 15 方案設(shè)計 ...................................................... 15 設(shè)計方案的擬定必須遵循下列原則 ................................................................... 15 本工序的特點 ................................................................................................... 15 定位機(jī)構(gòu)的設(shè)計及誤差分析 ...................................... 15 確定定位元件，計算定位誤差 .......................................................................... 15 定位銷的選擇 ..............................