PAGE\*MERGEFORMATIII摘要机械加工工艺是实现产品设计，保证质量，节约能源，降低能耗的重要手段，提高经济效益的技术保证。为了完成一个机械零件的生产工艺过程，必须在详细的分析零件的设计要求以后，才能开展后续的各项工作。本设计是针对减速电机上、下盖的工艺工装设计。减速电机上、下盖是一种典型零件，其加工工艺规程和工装设计具有典型性。该零件结构复杂，零件毛坯采用铸造成形。在加工过程中，采用先面后孔的加工路线，以保证工件的定位基准统一、准确。为了消除切削力、夹紧力、切削热和因粗加工所造成的内应力对加工精度的影响，整个工艺过程分为粗、精两个阶段。通过被加工零件的分析完成了机械加工工艺的设计及各加工工序机动时间的计算。根据零件零件的结构及其功能，运用定位夹紧的知识完成了夹具设计。关键词：工艺；减速电机盖；夹具AbstractMachiningprocessistoachieveproductdesign,qualityassurance,saveenergyandreducetheenergyconsumptionofimportantmeanstoimprovetheeconomicbenefitoftechnologyguarantee.Inordertocompleteaproductionprocessofmechanicalparts,mustbeafterthedetailedanalysisofthedesignrequirementsofparts,tocarryoutthefollow-upofeachwork.Thisdesignisaimedatslowingtheprocesstoolingdesignoftheupperandlowerlid.Gearmotor,underthecoverisakindoftypicalparts,itstypicalmachiningprocessplanningandtoolingdesign.Partsofthestructureiscomplex,partsadoptcastingforming.Inmachiningprocess,thefirstholeaftersurfaceprocessingroute,toensuretheworkpiecelocatingdatumofunityandaccurate.Inordertoeliminatethecuttingforce,clampingforce,cuttingheatandcausedbyroughmachiningofinternalstressinfluenceonmachiningprecision,thewholeprocessisdividedintocoarseandfinetwostages.Throughtheanalysisoftheprocessedpartsfinishedmachiningprocessdesignandthecalculationofthemaneuvertimedifferentprocessingprocedures.Accordingtothestructureandfunctionofcomponentparts,usingpositioningclampingfinishedfixturedesignknowledge.Keywords:process;Gearmotorcover;SpecialFixture目录TOC\o"1-3"\h\uHYPERLINK\l"_Toc7252"摘要PAGEREF_Toc7252IHYPERLINK\l"_Toc16929"AbstractPAGEREF_Toc16929IIHYPERLINK\l"_Toc5452"1绪论PAGEREF_Toc54521HYPERLINK\l"_Toc12357"1.1课题背景PAGEREF_Toc123571HYPERLINK\l"_Toc15202"1.2制订工艺规程的意义与作用及其基本要求PAGEREF_Toc152021HYPERLINK\l"_Toc31134"1.3夹具的设计PAGEREF_Toc311342HYPERLINK\l"_Toc1309"1.3机床夹具的作用PAGEREF_Toc13092HYPERLINK\l"_Toc8505"1.4机床夹具的分类PAGEREF_Toc85052HYPERLINK\l"_Toc7563"2零件的分析PAGEREF_Toc75635