连杆工艺及夹具设计本科毕设论文.doc

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1、连杆工艺及夹具设计摘要连杆是发动机的主要传动件之一，本文主要论述了连杆裂解的加工工艺及其夹具设计。连杆裂解是对连杆杆身和连杆盖结合面进行无屑断裂剖分加工的新技术，具有构思新颖、操作经济、效益显著的特点。阐述了连杆裂解加工原理、主要工艺流程以及裂解加工方法对材料和锻造毛坯的要求。介绍了加工裂解槽、有控裂解、装配螺栓等核心工序与设备，探讨了裂解加工常见缺陷及预防措施。连杆的尺寸精度、形状精度以及位置精度的要求都很高，而连杆的刚性比较差，容易产生变形，因此在安排工艺过程时，就需要把各主要表面的粗精加工工序分开。逐步减少加工余量、切

2、削力及内应力的作用，并修正加工后的变形，就能最后达到零件的技术要求。关键词：连杆裂解加工工艺变形夹具设计-23-连杆工艺及夹具设计TheProcessingTechnologyandFixtureDesignforConnectingRodAbstract:Theconnectingrodisoneofthemaindrivingmediumofengine,thistextexpoundsmainlythemachiningtechnologyandthedesignofclampingdeviceoftheconnect

3、ingrod.Connectingrodsplittingdecompositionisanewtechnologyofchiplesssplittingofconnectingrodandconnectingrodcapattheirjunctionplane.Ithasadvantagesofcreativedesign,economicalapplicationandremarkablebenefits.Machiningprinciple,mainprocessesofconnectingrodsplittingde

4、compositionandrequirementsofsplittingdecompositiononmaterialandforgingstockaredictated.Keyworkingproceduresandfacilities,suchassplittingdecompositiongroovemachining,controlledsplittingdecompositionandboltassembling,etc.,areintroduced,andfrequentdefectsandpreventive

5、measuresinsplittingdecompositionarediscussed.Keywords:ConnectingrodProcessingtechnologyforsplittingdecompositionDetermi-ationFixtureDesign-23-连杆工艺及夹具设计目录摘要..............................................................................................................

6、.............................IAbstract......................................................................................................................................II引言.........................................................................................

7、...................................................11连杆加工工艺过程设计........................................................................................................21.1工艺规程的制定.......................................................................................

8、......................31.1.1制订工艺规程的原始资料................................................................................41.2连杆工艺过程的准备工作...........