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尾座體零件機(jī)械加工工藝及其典型夾具設(shè)計(jì) 摘要 機(jī)械制造技術(shù)的發(fā)達(dá)程度突出反應(yīng)了一個(gè)國(guó)家或地區(qū)的經(jīng)濟(jì)實(shí)力和綜合國(guó)力，是一個(gè)國(guó)家生存、發(fā)展與繁榮所依賴的重要基礎(chǔ)。本文對(duì)一尾座體零件進(jìn)行加工工藝分析，并對(duì)相關(guān)工序設(shè)計(jì)專用夾具。本設(shè)計(jì)的基本思路是，首先對(duì)零件圖進(jìn)行分析，選擇毛坯形式、公差及余量。再次是確定加工基準(zhǔn)、工藝路線，選擇工藝裝備，設(shè)計(jì)各個(gè)工序的具體內(nèi)容，確定切削用量及時(shí)間定額等。最后設(shè)計(jì)關(guān)鍵工序的夾具。合理選擇加工基準(zhǔn)，加工方法，選擇設(shè)計(jì)出夾具的各個(gè)組成部件，如定位元件、夾緊元件、引導(dǎo)元件、夾具體與機(jī)床的連接部件以及其它部件；計(jì)算出夾具定位時(shí)產(chǎn)生的定位誤差，分析夾具結(jié)構(gòu)的合理性與不足之處，并在以后設(shè)計(jì)中注意改進(jìn)。設(shè)計(jì)的夾具應(yīng)結(jié)構(gòu)簡(jiǎn)單，省時(shí)省力，裝夾方便，并且對(duì)相似的零件的加工有通用性。 關(guān)鍵詞：工藝；工序；切削用量；夾緊；定位；誤差 Ⅰ The Tailstock Body Parts Machining Process and Its Typical Fixture Design Abstract The level of the development of the manufacturing technology is strongly respect the economic strength and national strength of a country. The existence and the development of a country depends on the manufacturing technology.This paper mainly discusses the machining technology of a flange and designes these tools used for machining the flange. The basic prodcer of the paper is that first analying the detail drawing of the flange,choosing the blank,the sizesand the basis,second, choosing the machine routing, choosing tools for machining the flange，designing details of erevy procedure，third，design the fixture. All these chooses must be right to make sure the flange meeting the technical requirements. The level of the development of the manufacturing technology is the response of the economic strength and national strength of a country. The existence and the development of a country depends on the manufacturing technology. All these chooses must be right to make sure the flange meeting the technical requirements. The fixture should save time and force，and should has generality. The fixture should save time and force，and should has generality. Key Words: The procers； the working procedure； the cutting specifications,clamp； the localization；the error Ⅱ 目 錄 1 緒論 1 1.1題目背景和研究意義 1 1.2本課題研究的主要內(nèi)容 1 2 零件的分析 2 2.1零件的作用 2 2.2零件的工藝分析 2 3 工藝規(guī)程設(shè)計(jì) 3 3.1確定零件的生產(chǎn)類型 3 3.2確定毛坯的制造形式 3 3.3基面的選擇的選擇 3 3.4制定工藝路線 4 3.5機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 5 3.6切削用量及基本時(shí)間的確定 6 3.6.1工序Ⅲ的設(shè)計(jì) 6 3.6.2工序Ⅳ的設(shè)計(jì) 8 3.6.3工序Ⅴ的設(shè)計(jì) 10 3.6.4工序Ⅵ的設(shè)計(jì) 15 3.6.5工序Ⅶ的設(shè)計(jì) 18 4 夾具的設(shè)計(jì) 21 4.1夾具的概述 21 4.2夾緊裝置的組成及設(shè)計(jì)要求 21 4.2.1動(dòng)力源 21 4.2.2中間傳力機(jī)構(gòu) 21 4.2.3夾緊元件 22 4.3定位誤差的分析與計(jì)算 23 4.4夾具設(shè)計(jì)與操作的簡(jiǎn)要說(shuō)明 23 4.4.1夾具體方式的確定 23 4.4.2夾具的精度要求 24 4.4.3夾具使用注意事項(xiàng)、保養(yǎng)及維護(hù) 24 4.5問(wèn)題的提出 24 4.6夾具的設(shè)計(jì) 24 4.6.1定位基準(zhǔn)的選擇 25 Ⅲ 4.6.2銑削力計(jì)算 25 4.6.3.定位誤差與分析 25 4.6.4夾具設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明 25 4.6.5夾具體的選擇 25 4.6.6夾具體槽形 26 4.6.7夾緊裝置及夾具體設(shè)計(jì) 27 5 結(jié)論 29 參考文獻(xiàn) 30 致謝 31 畢業(yè)設(shè)計(jì)（論文）知識(shí)產(chǎn)權(quán)聲明 32 畢業(yè)設(shè)計(jì)（論文）獨(dú)創(chuàng)性聲明 33