汽车后桥壳体加工工艺及夹具设计(两套夹具)论文.doc

摘要毕业设计的课题基本分为三大类，即工艺工装设计类、组合机床设计类和计算机课题类。本课题所涉及的是第一类，设计任务为汽车后桥壳体的工艺工装设计，在壳体内部装有主传动器、差速器、半轴等传动机构。壳体起保证和支撑的作用，其主要加工表面为端面外圆、法兰平面、弹簧座平面、以及内孔等。本次设计主要包括工艺规程、夹具、刀具和量具的设计。此次设计共分三个阶段，即：（1）毕业实习阶段（2）课题设计阶段（3）考核答辩阶段。结合本次设计零件的特点，在设计中完成工艺规程一套，夹具两套：（1）铣床夹具（2）钻床夹具，其中，前者为手动夹紧。另外还据任务书分别设计刀具——铣刀一把和量具——单头双极限卡规一套，共完成图纸近5张，基本完成老师所交给的任务。关键词：汽车后桥；工艺分析；设计任务ABSTRACTThesubjectofthegraduationprojectisdividedintothreebigclasses,namelythefrockdesigningtypeofcraft,makingupthedesigningtypeoflatheandcompersubjectsbasically.Whatthissubjectinvolvedisthefirstkind,designingthetaskfortherearaxleofautomobile,thecraftfrockoftheshellisdesigned.Equippedwiththeorganizationsofthetransmission,suchasmainhammermechanismactuator,differentialmechanism,semi-axis,ect,withintheshell.Theshellplaysaroleinguatanteeingandsupport,itprocessesflange,springseatplane,andinteriorholeroundforoutsideoftheterminalsurfaceofsurface,ect,mainly.Thisdesignincludesthedesignofrulesofcraft,jig,cutterandmeasuringtoolmainly.Thisdesigndividesthreestagesaltogether,namely:(1)Graduationfieldworkstage(2)Ddeignphaseofsubject(3)Examinethestageofreplying.Combinethischarateristicofdesigningthepart,finisshesonesetofrulesofcraftinthedesign,twosetsofjigs:(1)Jigofthemillingmachine(2)Thejigofthedrillingmachine,amongthem,theformer,inordertoclampmanually.Stilldesignthecuttersepatatelyaccordingtothetaskbookinaddition—Onemillingcutteriswithmeasuring,finishdrawingamountnearlu5altogether,finishthetaskthatateacherassignsbasically.Keyword:Therearaxleofautomobile；thecrafuanaluses；designsthetask目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc170494719"1绪论PAGEREF_Toc170494719\h1HYPERLINK\l"_Toc170494720"1.1我国汽车后桥制造业的现状及其发展趋势PAGEREF_Toc170494720\h1HYPERLINK\l"_Toc170494721"1.2汽车后桥壳体的构造PAGEREF_Toc170494721\h1HYPERLINK\l"_Toc170494722"1.3汽车后桥壳体的性能要求PAGEREF_Toc170494722\h1HYPERLINK\l"_Toc170494723"2零件的分析PAGEREF_Toc170494723\h3HYPERLINK\l"_Toc170494724"2.1零件的作用PAGEREF_Toc170494724\h3HYPERLINK\l"_Toc170494725"2.2零件的工艺分析PAGEREF_