500毫米锥形砂轮磨齿机砂轮修整结构设计.docx

500毫米锥形砂轮磨齿机砂轮修整结构设计摘要锥形砂轮磨齿机砂轮修整机构是对机床上磨损的砂轮进行修整的机构。锥形砂轮磨齿机是用锥形砂轮的侧面形成假象的齿条一个齿侧来磨削齿轮的。磨削过程是点接触，砂轮易磨损，磨削效率低，加工精度达到5-6级。由于砂轮易磨损，这严重影响到机床的加工精度，所以砂轮在磨损后要进行修整。这就需要砂轮修整机构。砂轮修整机构安装在机床的滑座上，通过燕尾槽导轨与滑座相连，并且能在滑座移动，以实现砂轮直径变小后对砂轮的修整。砂轮修整机构是靠金刚笔修砂轮的。砂轮修整机构的主要传动路线是这样的。当转动蜗杆手柄时，蜗轮随蜗杆转动，和蜗轮同在轴Ⅰ上的齿轮也随之转动，这个齿轮又带动分别安装在轴Ⅱ轴Ⅲ两个同样大小的齿轮转动，轴Ⅱ上另一个齿轮带动齿条上下移动，安装在齿条上的金刚笔走一条直线，由于砂轮的转动，金刚笔就修出了一个面。同理，轴Ⅲ上的齿轮带动齿条作与另一齿条方向相反的直线运动，金刚笔移动也就修出了另一个面。在这部分中，我对各个零部件形状和尺寸进行了设计，并对一些主要零部件进行了校核。其中包括：蜗杆传动的设计与校核、齿轮传动的设计与校核、轴的设计与校核等。关键字：磨齿机，金刚笔，蜗杆，齿轮，加工精度。THEWHEELDRESSINGBODYDESIGNOFTHE500MILLIMETERSTAPERED-WHEELGEARGRINDINGMACHINETOOLABSTRACTThewheeldressingbodyofthetaperedgeargrindingmachineisanorganthatdressesthewornwheelofthemachine.Thetaperedwheelgrindingmachineusesasideofanimaginaryracktogrindinggears,whichisformedbythesideofthetaperedwheel.Sincethegrindingprocessispointcontact，thegrindingwheelwearseasily,andthegrindingefficiencyislow.Thegrindingaccuracyrequiresreaching5to6degrees.Thewheelwearseriouslyaffectstheprocessingprecisionofthemachine,sothewheelneedtobedressedafterworn,andthisrequiresthewheeldressingbody.Thewheeldressingbodyisinstalledontheslidecarriageofthemachinetool,connectedwithitthroughtheswallowtail,anditcanmoveonthewheeldressingbodytodressthewheelafteritsdiameterdiminishes.Thewheeldressingbodyworkswithadiamondpen，anditsprimarytransmissionrouteisasfollows.Whenthewormhandleisbeingturned,thewormwheelturnswiththeworm.AndthegeartogetherwiththewormwheelontheshaftⅠwillit.ThenthisgeardrivestwogearsthathavethesamesizeinstalledindividuallyontheshaftⅡandtheshaftⅢ,andanothergearontheshaftⅡdrivestheracktomoveupanddown.Asthediamondpeninstalledontherackgoesastraightline,withtherotationofthegrindingwheel,thediamondpendressesasurface.Similarly，thegearontheshaftⅢdrivestherackgoesastraightline,whosedirectionisoppositetotheotherrack's,andthenthediamondpendressestheothersurface.Inthissection,theshapeandthesizeofthecomponentsweredesigned,andtheprimarypartswerechecked,includingthewormorgan,thegearsystemandtheshafts.KE