数控滑台毕业设计

数控滑台毕业论文第1页共28页XXXXX毕业论文姓名：学号：班级：指导老师：题目：数控滑台的设计技术要求：1.滑鞍垂直于丝杠方向宽度600~800mm2.滑鞍平行于丝杠方向尺寸600~800mm3.滑台行程500~700mm4.滑台总高度500mm~600mm5.滑鞍及移动部件总质量500~1000kg6.滑鞍最大移动速度15m/min7.移动部件的定位精度由丝杠及伺服电机来保证，设计时可暂不考虑8.导轨用普通导轨，不能选用直线运动导轨摘要数控滑台毕业论文第2页共28页从20世纪中叶数控技术出现以来，数控机床给机械制造业带来了革命性的变化。数控加工具有如下特点：加工柔性好，加工精度高，生产率高，减轻操作者劳动强度、改善劳动条件，有利于生产管理的现代化以及经济效益的提高。数控机床是一种高度机电一体化的产品，适用于加工多品种小批量零件、结构较复杂、精度要求较高的零件、需要频繁改型的零件、价格昂贵不允许报废的关键零件、要求精密复制的零件、需要缩短生产周期的急需零件以及要求100%检验的零件。数控机床的特点及其应用范围使其成为国民经济和国防建设发展的重要装备。本设计对数控机床的滑台部分进行了研究，报告了对我国数控机床的原理进行了分析。关键词：数控机床数控滑台丝杠ABSTRACT数控滑台毕业论文第3页共28页Fromthemid-twentiethcenturynumericalcontroltechnologytoemerge,NCmachinetoolsformechanicalmanufacturingindustryhasbroughttherevolutionarychange.NCmachininghasthefollowingcharacteristics:machiningflexibility,highmachiningaccuracy,productivityhigh,reducelaborintensity,theoperatortoimproveworkingconditions,behelpfulforproductionmanagementmodernizationandimprovetheeconomicbenefitsofthe.CNCmachineisakindofhighintegrationofmachineryproducts,applicabletosmallbatchprocessingvarietiesparts,thestructureisrelativelycomplicated,higheraccuracyoftheparts,theneedforfrequentdakenparts,expensivedon'tallowdiscardofthekeyparts,requirementsofprecisioncopyparts,needtoshortentheproductioncycleofurgentlyneededpartsand100%inspectionrequirementsofparts.Numerically-controlledmachinetool'scharacteristicsandapplicationscopemakeitbecomenationaleconomicandnationaldefenseconstructiondevelopmentimportantequipment.KEYWORDS:numericalcontrolmachineCNCSlipsetsscrew目录摘要......................................................................................................................................1数控滑台毕业论文第4页共28页ABSTRACT.........................................................................................................................2第1章数控滑台的结构设计和设计方案......................................................................61.1数控滑台的结构设计....................................................................................................61.2数控滑台的总体设计方案............................................................................................6第2章滚珠丝杠副的计算..............................................................................................72.1滚珠丝杠副支撑方式的选择........................................................................................72.2丝杠导程P的确定.......................................................................................................72.3承载能力校核................................................................................................................72.3.1切削力的计算............................................................................................................................72.3.2摩擦阻力F1的计算.................................................................................................................82.3.3承载能力校核............................................................................................................................82.3.4确定允许的最小螺纹底径........................................................................................................92.3.5初步确定滚珠丝杠副的规格代号..........................................................................................102.3.6确定滚珠丝杠副预紧力..........................................................................................................102.3.7行程补偿值与与拉伸力..........................................................................................................102.3.8确定滚珠丝杠副支承用的轴承代号、规格..........................................................................112.3.9滚珠丝杠副工作图设计..........................................................................................................112.3.10传动系统刚度...................................................................................................................122.3.11刚度验算及精度选择.......................................................................................................142.3.12验算临界转速...................................................................................................................15第3章交流伺服电机选择计算....................................................................................173.1计算折算到电动机轴上的负载惯量..........................................................................173.2计算折算到电机轴上的负载力矩..............................................................................173.3计算电动机轴上的加速力矩Tap...............................................................................183.4计算横向进给系统所需要的折算导电剂轴上的各种力矩......................................183.5选择驱动电动机的型号..............................................................................................18第4章数控滑台结构件的设计....................................................................................204.1导轨的设计..................................................................................................................204.1.1机床导轨的功用......................................................................................................................204.1.2导轨应满足的基本要求................................................