【正文】 轉(zhuǎn)向節(jié)加工工藝及夾具設(shè)計(jì)學(xué)生姓名： 學(xué)生學(xué)號(hào)： 院（系）： 年級(jí)專業(yè)： 指導(dǎo)教師： 二〇一二年四月 摘要I摘 要 本次設(shè)計(jì)是對(duì)轉(zhuǎn)向節(jié)的加工工藝規(guī)程及一些工序的專用夾具設(shè)計(jì)。轉(zhuǎn)向節(jié)零件的主要加工表面是轉(zhuǎn)向節(jié)軸表面，端面，主銷孔及鍵槽加工。由加工工藝原則可知，為了保證零件的精度，同時(shí)節(jié)約成本縮短加工周期提高生產(chǎn)效率。那么一個(gè)良好的工藝安排以及專用夾具的設(shè)計(jì)必不可少。在工藝的安排下不緊考慮合理的加工要求，還要考慮操作者及加工機(jī)械的安全。同時(shí)夾具的設(shè)計(jì)也要考慮拆卸的方便及安全。設(shè)計(jì)一個(gè)良好的工藝工裝安排路線必須對(duì)加工件的詳細(xì)分析及周密考慮后才能得出。所以分析問題是解決問題的關(guān)鍵。同時(shí)還要反復(fù)的調(diào)整。來尋求一個(gè)最好的方案。這樣才能保證工件的加工精度及生產(chǎn)節(jié)拍。關(guān)鍵詞 轉(zhuǎn)向節(jié)，加工工藝，專用夾具 ABSTRACTIIABSTRACTThe design of the steering knuckle of the processing order of the processes and some special fixture design. Steering knuckle parts of the main surface is a knuckle spindle surface, surface, the main pin hole and keyway. By the principle known processing, in order to ensure the accuracy of the parts, at the same time, save cost shorten the processing cycle to improve production efficiency. So a good process arrangement and special fixture design essential. In the process of arrangement is not tight reasonable processing requirements, but also consider the operator and processing machinery safety. At the same time the fixture design also consider removing the convenience and safety. The design of a good tooling arrangement route must to process a detailed analysis and careful consideration can reach. So the analysis of a problem is the key. At the same time, repeated adjustment. To seek a better solution. In order to ensure the machining precision of the workpiece and the production rhythm.Key words ： Steering knuckle ,Process of the craft,special fixture 目 錄1目 錄摘 要 ..........................................................................................................................ⅠABSTRACT.................................................................................................................II目錄 ................................................................................................................................11 緒 論 .........................................................................................................................12 轉(zhuǎn)向節(jié)加工工藝規(guī)程設(shè)計(jì) ......................................................................................3 零件的分析 .............................................................................................................................3 零件的作用 .....................................................................................................................3 零件的工藝分析 .............................................................................................................3 工藝過程設(shè)計(jì)所應(yīng)采取的相應(yīng)措施 .....................................................................................4 轉(zhuǎn)向節(jié)加工定位基準(zhǔn)的選擇 ................................................................................................4 確定毛坯的制造形式 ....................................................................................................4 粗基準(zhǔn)的選擇 .................................................................................................................4 精基準(zhǔn)的選擇 .................................................................................................................5 工藝路線的制定 ....................................................................................................................5 工藝方案一 ....................................................................................................................5 工藝方案二 ....................................................................................................................6 工藝方案的比較與分析 ................................................................................................6 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 .....................................................................6 確定切削用量及基本工時(shí)（機(jī)動(dòng)時(shí)間） .............................................................................8 時(shí)間定額計(jì)算及生產(chǎn)安排 ...................................................................................................23 本章小結(jié) ..............................................................................................................................263 拉削轉(zhuǎn)向節(jié) 216。41 主銷孔夾具設(shè)計(jì) ...........................................................................27 拉削轉(zhuǎn)向節(jié) 216。41 主銷孔夾具設(shè)計(jì) .......................................................................................27 定位方案的分析和定位基準(zhǔn)的選擇 ...................................................................................27 拉削力與夾緊力計(jì)算 ...........................................................................................................28 底座設(shè)計(jì) ...............................................................................................................................28 夾具精度分析 .......................................................................................................................28 目 錄2 本章小結(jié) ...............................................................................................................................294 鉆 及 4216。16 夾具設(shè)計(jì) .................................................................................30 鉆 及 4216。16 夾具設(shè)計(jì) .............................................................................................30 定位方案的分析和定位基準(zhǔn)的選擇 ...................................................................................30 鉆削力與夾緊力計(jì)算 ...........................................................................................................31 型塊與本體的設(shè)計(jì) ............................................................................................................31 夾具精度分析 .......................................................................................................................32 本章小結(jié) .....................................................................................................................