【正文】 JIUJIANG UNIVERSITY 畢 業(yè) 設(shè) 計(jì) 題 目 變速箱體工藝及 車削 Φ45 孔夾具設(shè)計(jì) 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(jì)制造及自動(dòng)化 摘 要 機(jī) 械工業(yè)有著廣闊的領(lǐng)域，特別是近年來(lái)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。隨著機(jī)械工業(yè)的發(fā)展，其他各工業(yè)部門都想著高深度邁進(jìn)，機(jī)械工業(yè)的發(fā)展日趨重要。 機(jī)械制造中，需要的加工順序、裝配工序及檢驗(yàn)工序等，使用著大量的夾具，可以提勞動(dòng)效率，提高加工精度，減少?gòu)U品，可以擴(kuò)大機(jī)床的工藝范圍，改善操作的勞動(dòng)條件。因此，夾具是機(jī)械制造的一項(xiàng)重要工藝裝備。 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(duì)刀具與機(jī)床保持正確的相對(duì)位置，并克服切削力的影響。使加工順利進(jìn)行。機(jī)床夾具分為通用夾具和專 用夾具兩種。 本設(shè)計(jì)說(shuō)明書(shū)的設(shè)計(jì)題目是：汽車變速箱體機(jī)械加工工藝及鉆 216。45 孔夾具設(shè)計(jì)并分析夾具體受力。本說(shuō)明書(shū)分為以下幾部分：第一部分：零件的分析，第二部分：零件的工藝規(guī)程設(shè)計(jì)，第三部分：機(jī)械加工余量及工序尺寸，第四部分：夾具設(shè)計(jì)，繪制工程圖，第五部分：夾具體受力分析。 其中 詳盡列出了各個(gè)加工工序，在每個(gè)加工工序中，又詳細(xì)的列出了每 個(gè) 切削工時(shí)，都進(jìn)行了精密的計(jì)算，對(duì)每個(gè)加工工序所需的機(jī)床進(jìn)行合理的選擇，且編寫了《機(jī)械加工工藝規(guī)程卡片》單獨(dú)裝訂成冊(cè)。 【關(guān)鍵詞】 機(jī)械工業(yè)；夾具；加工工藝 Abstract The mechanical industry has the broad domain， Specially in recent years the mechanical industry domain to the high accuracy, high grade, the high efficiency, the low cost direction is developing. Along with mechanical industry development,Other various industry sector all was thinking the high depth makes great strides forward,The mechanical industry development is day by day important. In machine manufacture,Needs processing order, assembly working procedure and examination working procedure and so on,Is using the massive jigs,May propose the labor efficiency,Increases the processing precision， May expand the engine bed the craft scope,Improvement operation work condition. Therefore,The jig is a machine manufacture important craft equipment. The engine bed jig is in the jig one kind,Fixes it to the engine bed on,May cause by the job maintains to the cutting tool and the engine bed the correct relative position, And overes the cutting force the influence. Causes the processing to carry on engine bed jig divides into the general jig and the unit clamp two kinds. This design instruction booklet design topic is： The automobile gear box body machinefinishing craft and drills216。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(jì) ......................................................................................................... 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(jì) ................................................................................................. 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(yàn)工序的安排 ................................................................................................. 4 工藝路線的擬定 ................................................. 5 工藝方案一： .....................................................................................................