机械制造技术基础课件-chapter4-section4(new)

4.4Processanalysisofrotationalparts4.4.1TypicalpartsmachinedbyCNCmachinetools4.4.2machiningofcomplicatedparts4.4.3ProcessanalysisofthespindleofCA6140表4.11CA6140型车床主轴加工工艺过程简表序号工序名称工序内容定位基准加工设备1备料2锻造精锻立式精锻机3热处理正火4锯头铣削切除毛坯两端专用机床5铣端面、钻顶尖孔外圆柱面专用机床6粗车（荒车）粗车各外圆面中心孔及外圆卧工车床C620B7热处理调质220～240HBS8车大端名部卧式车床C620B粗加工阶段9仿形车小端各部中心孔、短锥外圆仿形车床CE712010钻深孔夹小端、架大端专用深孔钻床11车小端内锥孔（配1：20锥堵）；用涂色法检查1：20锥孔，接触率％＝50夹大端、架小端卧式车床C620B12车大端锥面（配MorseNo.6号锥堵）；车前端锥面及端面；用涂色法检查MorseNo.6锥孔，接触率％＝30夹小端、架大端卧式车床C620B13钻大端端面各孔大端锥孔Z55钻床14热处理高频淬火前后支撑轴颈，前锥孔、590g外圆、短锥及MorseNo.6锥孔，45～50HRC高频淬火设备半精加工15精车各外圆并车槽中心孔数控车床CSK616316粗磨二段外圆堵头中心孔万能外圆磨床M1432A17粗磨MorseNo.6锥孔（重配MorseNo.6锥堵）外圆柱面内圆磨床M212018粗精铣花键堵头中心孔花键铣床YB601619铣键槽外圆柱面铣床X5220车大端内侧面及三段螺纹（配螺母）堵头中心孔卧式车床CA614021粗精磨各外圆及E、F两端面堵头中心孔万能外圆磨床M1432A22粗精磨圆锥面堵头中心孔专用组合磨床23精磨MorseNo.6内锥孔，MorseNo.6内锥孔用涂色检查，接触率％＝30，MorseNo.6内锥孔对主轴端面的位移为±2mm外圆柱面主轴锥孔磨床24检验按图样技术要求项目检验(终检)Applicationofthebasicrulesinprocessplanning(1)classificationofprocessphases①roughmachining,②self-finishmachining③finishmachining(2)selectionofreferencesurface①Principleoflocatingdatumsurfacesunchangeable②Principleofcoincidentlocatingsurfaces③Principleofbeingdatumsurfaceswitheachotherandmachiningtimeaftertime(3)sequencingtheoperations①Performdatumsurfacemachiningbeforethatofothersurfaces②Arrangementofdeepholeworking③Principleof“fromoutsidetoinside”and“fromlargetosmall”④PerformmainfunctionalsurfacemachiningbeforelessimportantsurfacemachiningSummaryandQuestions