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酒泉职业技术学院毕业设计（论文）2010级机械制造与自动化专业题目：内孔轴JD—1数控加工工艺分析与编程毕业时间：二〇一三年六月学生姓名：李亚军指导教师：赵吉虎班级：10机制（1）班2012年12月20日酒泉职业技术学院2013届各专业毕业论文（设计）成绩评定表姓名李亚军班级10机制1班专业机械制造与自动化指导教师第一次指导意见年月日指导教师第二次指导意见年月日指导教师第三次指导意见年月日指导教师评语及评分成绩：签字（盖章）年月日答辩小组评价意见及评分成绩：签字（盖章）年月日教学系毕业实践环节指导小组意见签字（盖章）年月日学院毕业实践环节指导委员会审核意见签字（盖章）年月日说明：1.以上各栏必须按要求逐项填写。2.此表附于毕业论文(设计)封面之后。内孔轴JD-1的数控加工工艺与编程摘要: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。关键词零件工艺分析加工方案工艺路线车削编程haftpartsCNCturningtechnologyanalysisandNCprogrammingAbstractWiththecontinuousdevelopmentofnumericalcontroltechnologyandapplicationsexpand,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目录引言....................................................................61.零件的分析.............................................................81.1零件的尺寸标注分析................................................91.2零件的几何要素分析................................................91.3零件的技术要求分析................................................92.毛坯及夹具的确定......................................................102.1毛坯的确定.......................................................102.1.1常见的毛坯种类..............................................102.1.2毛坯选择时应考虑的因素......................................102.1.3毛坯的确定..................................................102.2夹具的选择.......................................................102.2.1数控车床工装夹具的概念......................................102.2.2零件基准与加工定位基准......................................112.2.3常见的夹具...................................错误!未定义书签。2.2.4夹具的确定...................................错误!未定义书签。3.刀具的选择............................................................143.1刀具材料的选择...................................................143.2常用的车刀选用...................................................153.2.1外圆、端面车刀的选用........................................153.2.2孔加工刀具的选用............................................163.2.3切槽刀具的选用..............................................163.2.4螺纹加工刀具的选用..........................................163.3该零件加工所用的刀具.............................................174.工艺路线及其工艺卡片..................................................174.1工艺路线的确定...................................................174.1.1表面加工方法的选择..........................................174.1.2加工顺序的安排..............................................174.1.3工艺路线的确定..............................................184.2工艺卡片的制定...................................................195.数控编程..............................................................205.1数控编程的定义及分类.............................................205.1.1数控编程的定义..............................................205.1.2数控编程的分类..............................................205.1.3编程方法的选择..............................................215.2编程原点的确定...................................................215.3加工程序清单.....................................................215.3.1工序Ⅱ的加工程序清单........................................215.3.2工序Ⅲ的加工程序清单........................................226.仿真加工..............................................................237.可能出现废品的原因分析................................................267.1废品的定义.......................................................267.1.1表面粗糙度偏大..............................................267.1.2工件夹伤及夹紧变形..........................................267.1.3形位公差超差................................................267.1.4尺寸精度超差................................................267.2质量超差的解决方法...............................................27结束语..................................................................28致谢..................................................................29参考文献................................................................30引言随着计算机技术的高速发展，传统的制造业开始了根本性变革，各工业发达国家投入巨资，对现代制造技术进行研究开发，提出了全新的