【正文】 本科畢業(yè)設(shè)計(jì) (論文 ) 題目 ： 氣門搖桿軸支座零件機(jī)械加工工藝及其 鉆 2 Φ13 通孔夾具設(shè)計(jì) 系 別： 機(jī)電信息系 專 業(yè)： 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 班 級(jí)： 學(xué) 生： 學(xué) 號(hào)： 指導(dǎo)教師： 2020 年 4 月 25 日 氣門搖桿軸支座零件機(jī)械加工工藝及 鉆 2 Φ13 通孔夾具設(shè)計(jì) 摘 要 氣門搖桿軸支座是柴油機(jī)一個(gè) 重要 零件 ， 是柴油機(jī)搖桿座的結(jié)合部 。 本畢業(yè) 設(shè)計(jì)在氣門搖桿軸支座工藝規(guī)程設(shè)計(jì)過(guò)程中，詳細(xì)的分析了搖桿軸支座的加工工藝，通過(guò)工藝方案的比較與分析得到了符合技術(shù)要求的工序，形成了機(jī)械加工工藝過(guò)程卡和機(jī)械加工工序卡。并完成了鉆孔夾具的設(shè)計(jì)，闡述了定位方案的選擇、夾緊方案的確定、夾具體設(shè)計(jì)，運(yùn)用 AutoCAD 完成了此典型夾具的裝配圖和夾具體的零件圖。 本設(shè)計(jì)的加工工藝合理，夾具可行、高效、省力，能滿足零件的加工要求，保證其加工質(zhì)量。 關(guān)鍵詞： 氣門搖桿軸支座 ； 機(jī)械加工 ； 加工工藝 ； 典型夾具 Bearing Parts Machining Process Valve Rocker Shaft and Its Typical Fixture Design Abstract Valve rocker shaft bearing is an important part of the diesel engine, is a bination of diesel engine rocker seat. This graduation design in valve rocker shaft bearing process design process, a detailed analysis of the process of the rocker shaft bearing, meet the technical requirements of the process was obtained through the parison and analysis of the process, forming a machining process card and machining process card. And finish milling and turning and drilling fixture design, elaborated the localization scheme selection, clamping scheme, clamp design, AutoCAD is used to plete the assembly drawing of this typical fixture and clamp parts map specific. Processing technology of the design is reasonable, feasible， high efficiency, labor saving fixture, can meet the processing requirements of parts， ensure the machining quality. Key Words: valve rocker shaft bearing。 mechanical processing。 processing technology。 typical jig I 目 錄 1 緒論 .....................................................................................................................1 題目背景及研究意義 ....................................................................................1 國(guó)內(nèi)外相關(guān)研究情況 ....................................................................................2 本課題主要內(nèi)容和擬采用的研究方案 ........................................................3 2 零件的分析 .......................................................................................................5 零件的作用 ....................................................................................................5 零件的 結(jié)構(gòu) 分析 ............................................................................................5 零件的工藝分析 ............................................................................................6 零件的生產(chǎn)類型 ............................................................................................6 3 機(jī)械加工工藝規(guī)程設(shè)計(jì) ...............................................................................8 確定毛坯的制造形式 ....................................................................................8 定位基準(zhǔn)的選擇 ............................................................................................8 制定機(jī)械加工工藝路線 ................................................................................9 工藝方案的比較與分析 ................................................................................9 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 ..........................................10 選擇加工設(shè)備及刀、夾、量具 .................................................................. 11 確定切削用量及基本工時(shí) .......................................................................... 11 4 鉆 2 Φ13 通孔夾具設(shè)計(jì) ............................................................. 26 鉆床夾具的設(shè)計(jì)特點(diǎn) ....................................................................................26 問(wèn)題的提出 ....................................................................................................27 定位基準(zhǔn)的選擇 ............................................................................................27 定位元件的設(shè)計(jì) ............................................................................................27 切削力和夾緊力的計(jì)算 ................................................................................27 定位誤差分析 ................................................................................................28 夾具設(shè)計(jì)及簡(jiǎn)要操作說(shuō)明 ............................................................................28 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 ..................................................