柴油机齿轮室盖钻镗专机总体及主轴箱设计 (3)

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1、柴油机齿轮室盖钻镗专机总体及主轴箱设计摘要：本课题设计一台加工柴油机齿轮室盖的钻镗组合机床，主要完成机床总体和右主轴箱的设计工作。根据柴油机齿轮室盖的结构特点、加工部位、尺寸精度、表面粗糙度及生产率等要求，确定该机床为单工位卧式组合机床；为确保加工精度，采用“一面两销”的定位方案；为实现无级调速，安全可靠，选择液压滑台；根据零件的大小及被加工孔的位置确定主轴箱的轮廓尺寸；由加工工艺选择滚珠轴承主轴，通过计算扭矩确定主轴和传动轴的直径；齿轮的模数是通过类比法确定；齿轮齿数和中间传动轴的位置是由“计算、作

2、图和多次试凑”相结合的办法确定；计算主轴、传动轴的坐标并进行中心距验算，确定部分轴上需采用变位齿轮；轴上的齿轮套、键等零件按轴号选取相应的标准件。本课题设计的组合机床采用“一面两销”定位、液动夹紧，一次装夹加工柴油机齿轮室盖三个面上的孔，保证了加工精度，提高了生产效率，减少了工人的劳动强度。而且在设计之中，尽量选用通用件，减少了制造成本，增加了经济效益。关键词：组合机床主轴箱主轴传动轴齿轮室盖35Theoverallandheadstockdesignofdrillingandboringmodula

3、rmachinefordieselenginegealchambermanufactureAbstract:Thisprojectistodesignamodularmachinetoolformanufacturingthegearchambercapofdieselengine.Mainlyworkisthedesignofoverallandtherightheadstock.Accordingtotherequestofconstructionfeatures,processingspot,s

4、izeprecision,surfaceroughnessandproductivitythatdieselenginegearchambercap,setsthemachinetoolforsinglelocationhorizontaltypemodularmachinetool.Inordertoguaranteetheprocessingprecision,thelocalizationplanuse"twosellsandasurface".Inordertoimplementthestep

5、lessspeedregulation,safeisreliable,thereforechoicehydraulicpressureslidingtable.Accordingthesizeofcomponentsandthepositionoftheholethatisprocessedtosettheoverallsizeoftheheadstock.Choicingballbearingspindlebyprocessingcraft.Thespindleanddriveshaftdiamet

6、erisdecidedthroughcomputationtorque.Thegearmodulusisdecidedthroughthecorrelationmethod.Thegearmentionsandthepositionofintermediatepropellershaftisdecidedbythemeans"computation,mappingandtriestocollectmanytimes".Calculatesthecoordinatesofthespindleanddri

7、veshaftandcheckingthecenterdistance,determineddepartmentspindlemustusedislodgesthegear.Thecomponentsoftoothwheelcover,keyandsoonthatinaxisselectstandardletterbythecorrespondingnumber.Themodularmachinetoolofthisprojectdesignuse“twosellsandonesurface”tolo

8、cate,hydraulicpressandclamps.Inthesituationofoneclamp,theholesthreesurfaceofthedieselenginegearchambercap,areguaranteedtheprocessingprecision,isenhancedtheproductionefficiency,isincreasedworker'slaborintensity.Moreoverduringthede