数控回转工作台说明书

I摘要数控车床今后将向中高挡发展，中档采用普及型数控刀架配套，高档采用动力型刀架，兼有液压刀架、伺服刀架、立式刀架等品种，预计近年来对数控刀架需求量将大大增加。但是数控回转工作台更有发展前途,它是一种可以实现圆周进给和分度运动的工作台，它常被使用于卧式的镗床和加工中心上，可提高加工效率，完成更多的工艺，它主要由原动力、齿轮传动、蜗杆传动、工作台等部分组成，并可进行间隙消除和蜗轮加紧，是一种很实用的加工工具。本课题主要介绍了它的原理和机械结构的设计，并对以上部分运用AUTOCAD做图,最后是对数控回转工作台提出的一点建议。关键词：数控回转工作台；齿轮传动；蜗杆传动；间隙消除；蜗轮加紧IIAbstractNumericalcontrolthereisinthefuturelathetoinwilldevelop,themiddle-gradetoadoptpopularnumericalcontrolkniferestformacompleteset,adoptthemotiveforcetypekniferesttop-grandly,havesuchvarietiesaskniferestofhydraulicpressure,servokniferest,verticalkniferest,etc.concurrently,itisestimatedthatitwillincreasetonumericalcontrolkniferestdemandgreatlyinrecentyears.ThedevelopmenttrendoftheNumericalcontrolrotarytableis:Withthedevelopmentofnumericalcontrollathe,numericalcontrolkniferestbegintochangeonehundredsheets,electricliquidisiturgeandurgedirectiondevelopwhilebeingservotomakeupfast.Someoriginallydesignandisitcontinueelectricitytousetofourworkerlocationverticalelectronicmachineryofkniferestmainly-exposedtocontrolsystemcontrolsomedesigns.AnduseAUTOCADtopursuetotheabovepart,haveamoreocularknowledgeofelectronickniferest.ThelastpropositionhasputforwardthesuggestionandmeasuretoNumericalcontrolrotarytable.Keywords:Numericalcontrolrotarytable;Geardrive;Wormdrive;Gapeliminati-on;Thewormgearstepsup.III目录摘要.....................................................................................................................IAbstract..................................................................................................................II绪论....................................................................................................................1第1章数控技术发展趋势................................................................................41.1性能发展方向.......................................................................................41.2功能发展方向.......................................................................................51.3体系结构的发展...................................................................................61.4智能化新一代PCNC数控系统...........................................................71.5本章小结...............................................................................................7第2章数控回转工作台的原理与及其组成..........................82.1数控回转工作台工作的原理...............................................................82.2数控回转工作台主要的组成部分.......................................................92.3本章小结.............................................................................................11第3章数控回转工作台总体结构设计..........................................................123.1主要技术参数及其基本要求.............................................................123.1.1技术参数..................................................................................123.1.2基本要求..................................................................................123.2传动方案的确定.................................................................................123.2.1传动方案传动时应满足的要求..............................................123.2.2传动方案及其分析..................................................................133.3步进电机的原理.................................................................................143.4电液脉冲马达的选择及运动参数的计算.........................................153.4.1确定电机转速..........................................................................16第4章主要零部件的设计..............................................................................174.1齿轮传动的设计.................................................................................174.1.1选择齿轮传动的类型..............................................................174.1.2选择材料..................................................................................174.1.3按齿面接触疲劳强度设计......................................................174.1.4确定齿轮的主要参数与主要尺寸..........................................184.1.5校核齿根弯曲疲劳强度..........................................................19IV4.1.6确定齿轮传动精度..................................................................204.1.7齿轮结构设计..........................................................................204.2蜗轮及蜗杆的选用与校核.................................................................204.2.1选择蜗杆传动类型..................................................................214.2.2选择材料..................................................................................214.2.3按齿面接触疲劳强度设计......................................................214.3蜗杆与蜗轮的主要参数与几何尺寸.................................................234.3.1蜗杆..........................................................................................234.3.2蜗轮..........................................................................................234.3.3校核蜗轮齿根弯曲疲劳强度..................................................244.4轴的校核与计算.................................................................................254.4.1画出受力简图..........................................................................254.4.2画出扭矩图..................................................................