摘要这篇论文主要阐述了连杆体的工艺路线，铣定位面夹具的设计过程。工艺部分说明了毛坯的确定，定位基准的选择，加工顺序的制定及加工方法的确定。工序方面说明了如何确定刀具及工序图内容。夹具设计部分，主要是根据工序定位基准面要求限制的自由度数目和定位基准面形状来确定具体定位元件及定位总体方案，再根据工序夹紧面的要求来确定具体夹紧元件和夹紧总体方案。依据铣床夹具的结构设计特点，确定刀具相对工件位置的对刀方案，用定位键确定夹具在机床上的位置，最后做夹具总体结构设计分析。【关键词】：铣床夹具，结构工艺性，工艺路线AbstractThispapermainlydiscussesthewayoftheconnectingrod,andmillingfixturedesignprocess.Processpartshowsthedeterminationofblank,locatingdatumselection,thedeterminationofprocessingorderandprocessingmethod.Processshowshowtodeterminethecontentofthecuttingtoolandworkprocedures.Fixturedesignpart,mainlyaccordingtotheprocessingpositioningbaserequiredtolimitthenumberofdegreesoffreedomandtheshapeofthelocatingdatumtodeterminespecificpositioningelementsandapositioningscheme,accordingtotherequirementsofthesurfaceoftheclampingprocesstodeterminethespecificclampingdeviceandclampingscheme.Accordingtothecharacteristicsofthemillingmachinefixturedesignproject,determinethepositionofthetoolrelativetotheworkpiecetoolpositioningkeytodeterminethepositionofthejigmachine,finallytheanalysisoftheoverallstructureofthefixturedesign.[keywords]:millingfixture,structuretechnology,processroute目录一、绪论.............................................................................................................................11.1本课题设计的目的.................................................................................................11.2机械加工工艺与夹具设计的重要性.....................................................................11.3质量、生产率和经济性的辩证关系...................................................................11.4课题的设计的方案................................................................................................21.4.1工艺方面的设计方案.................................................................................21.4.2夹具设计方案............................................................................................2二、工艺过程设计..............................................................................................................32.1概述........................................................................................................................32.1.1机械加工工艺过程的作用.........................................................................32.1.2机械加工工艺过程的类型...........................................................................32.1.3机械加工工艺过程制定的原则..................................................................32.1.4连杆体机械加工工艺过程制定的步骤和内容.........................................32.2连杆体图样的分析...............................................................................................42.3连杆体毛坯的选择和确定...................................................................................42.4拟定连杆体机械加工工艺过程...........................................................................42.4.1选择粗基准.................................................................................................42.4.3经济加工精度..................................................................
