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轴类零件数控车削工艺分析及数控加工编程摘要随着数控技术的不断发展和应用领域的扩大，数控加工技术对国计民生的一些重要行业（IT、汽车、轻工、医疗等）的发展起着越来越重要的作用，因为效率、质量是先进制造技术的主题。高速、高精加工技术可极大地提高效率，提高产品的质量和档次，缩短生产周期和提高市场竞争能力。而对于数控加工，无论是手工编程还是自动编程，在编程前都要对所加工的零件进行工艺分析，拟定加工方案，选择合适的刀具，确定切削用量，对一些工艺问题（如对刀点、加工路线等）也需要一些处理。并在加工过程掌握控制精度的方法，才能加工出合格的产品。本文根据数控机床的特点，针对具体的零件，进行了工艺方案的分析，工装方案的确定，刀具和切削用量的选择，确定加工顺序和加工路线，加工效率，简化工序等方面的优势。关键词工艺分析加工方案进给路线控制尺寸轴类零件数控车削工艺分析及数控加工编程1ShaftpartsCNCturningtechnologyanalysisandNCprogrammingAbstractWiththecontinuousdevelopmentofnumericalcontroltechnologyandapplicationsexpand,CNCmachiningtechnologyontheeconomyofanumberofimportantsectors(IT,automotive,lightindustrial,medical,etc.)playanincreasinglyimportantrole,sincetheefficiency,qualityisthethemeofadvancedmanufacturingtechnology.High-speed,high-precisionmachiningtechnologiescangreatlyenhanceefficiency,improveproductqualityandgrades,shortentheproductioncycleandimprovemarketcompetitiveness.ForNCprocessing,whetherautomaticormanualprogrammingprogramming,programmingbeforetheprocessingofpartsforprocessanalysis,formulationandprocessingprogrammes,selectingtherighttooltodeterminethecuttingparameters,onanumberoftechnologyissues(suchasontheknifepoint,processingline,etc.)alsoneedssomework.Andprocessmasterycontrolprecision,toprocessingthequalifiedproduct.ThisarticleinaccordancewiththecharacteristicsofCNCmachinetools,tailoredtospecificparts,aprocessofanalysis,determinationoftoolingprogramme,toolandcuttingparametersselection,determinetheorderandprocessinglinesforprocessing,theprocessingefficiency,simplifyprocesses,andotherbenefits.Keywords：analysisprocessingprogrammefeedinglinecontrolsize工艺分析加工方案进给路线控制尺寸轴类零件数控车削工艺分析及数控加工编程2目录摘要............................................................................................................................................0Abstract.............................................................................................................................................1第一章概述............................................................................................................................31.国内外数控发展概况............................................................................................................3第二章工艺方案分析.................................................................................................................72.1零件图................................................................................................................................72.2零件图分析.........................................................................................................................72.3确定加工方法.....................................................................................................................72.4确定加工方案.....................................................................................................................8第三章工件的装夹......................................................................................................................93.1定位基准的选择.................................................................................................................93.2定位基准选择的原则.........................................................................................................93.3确定零件的定位基准.........................................................................................................93.4装夹方式的选择.................................................................................................................93.5数控车床常用装夹方式.....................................................................................................93.6确定合理的装夹方式.......................................................................................................10第四章刀具及切削用量.............................................................................................................114.1选择数控刀具的原则.......................................................................................................114.2选择数控车削用刀具.......................................................................................................114.3设置刀点和换刀点...........................................................................................................124.4确定切削用量...................................................................................................................12第五章典型轴类零件加工...........................................................................................................135.1轴类零件加工的工艺分析..............................................................................................135.2典型轴类零件加工工艺..................................................................................................155.3手工编程..........................................................................................................................18第六章数控车自动编程软件CAXA介绍.............................................................................221．CAXA数控车界面..........................................................................................................222.CAXA数控车进行造型设计...................................