SYJ机头孔加工专用机床设计总计：毕业论文：97页表格：13表插图：41幅指导教师：xx评阅人：完成时间：2016.5.15大连理工大学博士学位论文格式规范--PAGE\*MERGEFORMATI摘要对于某些零件例如SYJ机头，通用机床不能加工，或者说不能更好地满足加工条件，这个时候就必须设计专用机床。本文设计的SYJ机头孔加工专用机床是一种专门用来加工SYJ零件的主轴孔、立轴孔的机床。本文首先对零件的主轴孔、立轴孔进行工艺分析，制定出工艺路线，再根据工艺路线对每个工序进行切削参数的选择、加工方法的选择，并最终计算出了每个加工工序所需要的加工时间，从而保证了生产效率。另外，考虑到专用机床主要用于大批量生产，所以本次设计并未采用传统的单一加工刀具，而是根据切削参数，设计采用钻扩孔复合刀具、铰孔复合刀具、粗镗复合刀具、半精镗精镗复合刀具，从而也保证了生产效率。对于传动系统电动机的选型，本文主要根据选择的切削参数反算需要的功率，进而可以得到电动机应该具备的最小功率，在根据机械设计手册选择出符合的电动机。本次设计也包括了立轴孔钻扩孔主轴箱设计、主轴孔镗孔主轴箱设计，并对主轴箱轴、主要轴承进行了校核。最后根据加工过程的主要参数，设计出机床的总体布局。关键词：专用机床；主轴孔；立轴孔PAGE\*MERGEFORMATIIABSTRACTForsomepartssuchastheSYJhead,generalmachinetoolscannotbeprocessed,orsaiditcouldn'tbebettertomeettheprocessingconditions,thistimemustbespecialmachinedesign.TheSYJheadholemachiningspecialpurposemachineisaspecializedforprocessingpartsoftheSYJspindlehole,verticalholemachine.Firstly,thepartsofthespindlehole,verticalholeprocessanalysis,formulatestheprocessroute,againaccordingtothetechnologicalrouteforeachworkingprocedureofcuttingparametersselection,processingmethod,andfinallycalculatestheeachprocessingtherequiredprocessingtime,soastoensuretheproductionefficiency.Inaddition,takingintoaccountthespecialmachinetoolismainlyusedInmassproduction,sothedesigndidnotusethetraditionalsingletool,butaccordingtocuttingparameters,thedesignadoptsthecompositedrillingreamingtool,compositereamingtool,compositeroughboringtool,semifineboringfinecompositeboringcutter,thusensuringtheproductionefficiency.Theselectionofmotordrivesystem,thispapermainlyaccordingtothechoiceofcuttingparametersbackcalculationneedpowerandgettheminimumpowermotorshouldhave,inaccordancewiththemechanicaldesignmanual,selectedinlinewiththemotor.Thedesignalsoincludesverticalholereamerspeedreducerdesign,thespindleholeboringdecelerationdevicedesign,andthereducershaft,themainbearingofFinally,accordingtothemainparametersoftheprocessingprocess,thedesignoftheoveralllayoutofthemachinetool.KeyWords：Specialpurposemachinetool;Spindleho