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可任意分度的插齿机齿轮加工回转工作台的设计.doc

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可任意分度的插齿机齿轮加工回转工作台的设计.doc

www.88doc88.comwww.yanziedu.com摘要插齿机作为齿轮加工机床的一种,已逐步体现出其加工的优越性,在滚齿机、铣齿机上无法加工的一些齿轮,如双联齿轮和内齿轮,在插齿机上可加工制造出来。在本课题的设计中,采用步进电机控制回转工作台的转角。在单片机的控制下,步进电机每秒钟发出的脉冲数决定了工作台的转位角度,使该插齿机成为真正意义上的可任意分度加工,进而可实现加工任意齿数的齿轮。本课题所设计的回转工作台是用单片机作为控制系统来控制步进电机的转速,动力由步进电机发出,通过齿轮传动和蜗轮蜗杆传动,将动力传递到蜗轮上,蜗轮的转动再带动主轴转动,从而实现与主轴夹紧的工件的转动。所设计的回转工作台实用、简单、可靠、效率高。关键词步进电机回转工作台单片机任意分度www.88doc88.comwww.yanziedu.comAbstractAsonekindofthegearfinishinglathes,thegearshaperhasmanifestedthesuperiorityinprocessinggradually,onthegearhobbingmachine,thegearcuttercanntbetrue,forexample,thetwingearandtheannulargear,buttheycanbeprocessedonthegearshaper.Inthisdesign,Iuseastepbysteptheelectricalmachinerytocontrolthecornerofrotarytable.Underthecontrolofmonolithicintegratedcircuit,thenumberofpulseofthestepbystepelectricalmachineryeachsecondcanbesentouttodecidetherotarytablesindexingangle,makingthegearshapertobecometherandomindexingprocessinginthetruesense.Andthen,thegearprocessingwhichismentionedwillfullymightberealized.Therotarytabledesignedinthistopiciscontroledbythemonolithicintegratedcircuittocontroltherotationalspeedofstepbystepelectricalmachinery,thestepbystepelectricalmachinerysendoutthepowerfirstly,throughthegeardriveandthewormgearwormdrive,thenthepoweristransmistedtowormgear,andwormgearrotatingmakesthemainaxlerotatethesametime,andthen,itcomestoberealizedthattheworkpiececlampedwithmainaxlecometorotate.Inmyopinion,thisdesignoftherotarytableispractical,simple,reliable,andtheefficiencyishigh.Keywordsstepbysteptheelectricalmachinerytherotarytablethemonolithicintegratedcircuitrandomindexingwww.88doc88.comwww.yanziedu.com目录1绪论.............................................................................................................................................11.1本课题的背景及应解决的主要问题..................................................................................11.2本课题的研究目的和现实意义..........................................................................................11.3插齿概述..............................................................................................................................21.4插齿机类型与适用范围......................................................................................................21.4.1插齿机类型...................................................................................................................21.4.2各种插齿机的适用范围...............................................................................................31.5插齿机的工作原理及其参数...............................................................................................31.5.1插齿机的外观图...........................................................................................................31.5.2插齿机的工作原理.......................................................................................................41.5.3插齿机的参数...............................................................................................................52设计方案选择.............................................................................................................................62.1分度工作台..........................................................................................................................62.2数控回转工作台..................................................................................................................62.2.1开环数控转台...............................................................................................................62.2.2闭环数控回转工作台...................................................................................................73工作台设计.................................................................................................................................83.1步进电机的选择与控制......................................................................................................83.1.1步进电动机的特点与种类...........................................................................................83.1.2步进电动机的选择.......................................................................................................93.1.3步进电动机的控制.......................................................................................................93.2蜗轮蜗杆设计计算............................................................................................................143.2.1蜗杆传动输入参数.....................................................................................................143.2.2接触疲劳强度计算.....................................................................................................153.2.3确定蜗轮蜗杆的主要尺寸.........................................................................................163.2.4确定蜗轮蜗杆的传动效率.........................................................................................163.2.5选择蜗轮蜗杆的精度等级.........................................................................................173.2.6蜗轮蜗杆传动的热平衡计算.....................................................................................173.3齿轮设计计算....................................................................................................................183.3.1齿轮设计输入参数.....................................................................................................183.3.2齿轮的材料及热处理.................................................................................................183.3.3齿轮的基本参数.........................................................................................................183.3.4齿面接触疲劳强度校核.............................................................................................20www.88doc88.comwww.yanziedu.com3.3.5齿根弯曲强度校核.....................................................................................................213.4轴承设计计算....................................................................................................................213.4.1轴承方案选择.............................................................................................................213.4.2轴承动载荷和寿命计算.............................................................................................223.5箱体设计计算....................................................................................................................234控制系统设计...........................................................................................................................244.1单片机................................................................................................................................244.2驱动电路的设计................................................................................................................244.3电源电路设计....................................................................................................................254.4程序设计............................................................................................................................26结论...............................................................................................................................................32致谢...............................................................................................................................................33参考文献.......................................................................................................................................34附录...............................................................................................................................................35附录1.........................................................................................................................................35附录2.........................................................................................................................................42

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