说明书课题：齿轮架加工工艺及钻5斜孔夹具设计专题：专业：机械制造及自动化学生姓名：班级：学号：指导教师：完成时间：摘要本设计是基于齿轮架零件的加工工艺规程及一些工序的专用夹具设计。齿轮架零件的主要加工表面是平面及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。基准选择以齿轮架的输入轴和输出轴的支承孔作为粗基准，以底面与两个工艺孔作为精基准。主要加工工序安排是先以支承孔系定位加工出顶平面，再以顶平面与支承孔系定位加工出工艺孔。在后续工序中除个别工序外均用顶平面和工艺孔定位加工其他孔系与平面。支承孔系的加工采用的是坐标法镗孔。整个加工过程均选用组合机床。夹具选用专用夹具，机构可以不必自锁，因此生产效率较高，适用于中批量、流水线上加工，能够满足设计要求。关键词：齿轮架类零件；工艺；夹具；全套图纸加扣3012250582ABSTRACTThedesignisbasedonthebodypartsoftheprocessingorderoftheprocessesandsomespecialfixturedesign.Bodypartsofthemainplaneofthesurfaceandporesystem.Ingeneral,theplaneguaranteeprocessingprecisionthanthatofholesmachiningprecisioneasy.Therefore,thisdesignfollowsthesurfaceafterthefirstholeprinciple.Planewithholesandtheprocessingclearlydividedintoroughingandfinishingstagesofholestoensuremachiningaccuracy.Datumselectionboxinputshaftandtheoutputshaftofthesupportingholeasaroughbenchmark,withtopwithtwoholesasaprecisiontechnologyreference.Mainprocessesarrangementstosupportholesforpositioningandprocessingthetopplane,andthenthetopplaneandthesupportingholelocationholeprocessingtechnology.Inadditiontothefollow-upprocessesindividualprocessesaremadeofthetopplaneandtechnologicalholelocationholeandplaneprocessing.Supportedholeprocessingusingthemethodofcoordinateboring.Thewholeprocessofprocessingmachinecombinationswereselected.Selectionofspecialfixturefixture,clampingmeansmorechoiceofpneumaticclamping,clampingreliable,institutionscannotbelocked,sotheproductionefficiencyishigh,suitableforlargebatch,lineprocessing,canmeetthedesignrequirements.Keywords:Thermalheadconnectingblockmedicinepackagingmachine,heatsealingmachineparts;fixture;目录摘要.........................................................................................................................................................IIABSTRACT...............................................................................................................................................III第1章序言.................................................................................................................................................51.1机械加工工艺流程........................................................................................................................51.2机床夹具的功能............................................................................................................................5第2章机械加工工艺规程设计.................................................................................................................72.1零件的分析...................................................................................................................................72.1.1零件的作用........................................................................................................................72.1.2零件的工艺分析....................................................................................