1 目 錄摘要…………………………………………………………………………. I緒論………………………………………………………….….…………… 1前言………………………………………………………….….…………… 3第 1 章………………………………………………………….….…… ……51.1 零件的作用………………………………………………………………51.2 零件的工藝性……………………………………………………………51.3 工藝規(guī)程的設計…………………………………………………………61.3.1 確定毛坯的制造形式…………………………………………………61.3.2 基準的選擇……………………………………………………………71.4 制定工藝路線……………………………………………………………71.5 擇加工設備及刀具、夾具、量具………………………………………101.6 加工工序設計……………………………………………………………111.7 時間定額計算……………………………………………………………191.8 填寫工藝卡………………………………………………………………21第 2 章……………………… ………………………………….….…………222.1.1 銑分割面夾具的設計………………………………………….……….222.1.1 確立方案………………………………………….………………… …222.1.2 計算夾緊力………………………………………….…………………222.1.3 定位精度分析……………………………………….…………………222.1.4 操作說明………………………………………….………………… …222.2 鉆孔夾具的設計……………………….………………………….……222.2.1 確立方案………………………………………….………………… …232.2.2 計算夾緊力………………………………………….…………………232.2.3 定位精度分析……………………………………….…………………232.1.4 操作說明………………………………………….………………… …23∶∶致謝………………………….…………………………………….……….242 參考文獻………………….………………………………………. ……….253 摘 要本文設計了二級減速器上箱體機械加工工藝規(guī)程，合理選擇了工藝過程中的機床刀具和量具，設計了銑分割面工序和鉆螺栓孔工序的專用機床夾具。并計算了該夾具使用的精度保證，計算結(jié)果表明兩套夾具均可，保證了零件的加工要求。關(guān)鍵詞 機械加工工藝規(guī)程；機床夾具；定位；定位誤差4 AbstractThis text designs the last body machine of second class deceleration machine to process the craft rules distance, the reasonable chooses the tool machine knife within the craft process to have and measure, designing the 銑 to partition to face the work preface and drill the appropriation tool machine tongs of the stud bolt bore work preface.Also computed that tongs the accuracy of the usage assurance, the calculation as a result expresses that two sets of tongs all can, guarantee the spare parts to process the request.The keyword machine processes the craft rules distance;Tool machine tongs;Fixed position;Position the error margin5