文本内容:
・数控加工技术、机制工艺学、金属工艺学、互换性与技术测量数控加工技术Numericalcontrolprocessingtechnology
1、numericalcontrolmachineiscomposedofthecontrolsystemNCsystemservosystemandthemachinebody.
2、open-loopcontrolsystem:Inputfromoutputimpactclosed-loopcontrolsystemHighaccuracySemi-closedloopcontrolsystem
3、TheprinciplesofthecoordinatesystemforCNCmachinetoolsisRight-handedCartesiancoordinatesystemthumb-Xindexfinger-Ymiddlefinger-Zaxis.Assumedthattheworkpieceisfixedandthetoolrelativetotheworkpiecemovement.4G01直线;G02/03圆弧终点加圆心或终点加半径;G04暂停;G32螺纹加工机制工艺学MechanicalTechnology
1、Fixture夹具
4、
15.
2、machinerymanufacture车床:latheCA6140horizontallathe最大工件回转直径:Maximumworkpieceswingdiameter磨床grindingmachine砂轮grindingwheel铳床millingmachine平面:plane齿轮gear圆柱齿轮:cylindricalgear弹簧spring偏差deviation上偏差upperdeviation基本尺寸:basicsize投影projection公差与配合Toleranceandfit轴:shaft孔hole滚动轴承rollingbearing基本尺寸fundamentaldimension极限尺寸:extremedimensionH8/f7:H8:孔的公差带代号Holetolerancezonecode公差等级代号Toleranceclasscode基本偏差代号BasicdeviationCode基孔制hole-basesystem基轴制shaft-basesystem圆柱体结合Cylindercombination间隙配合:clearancefit过渡配合transitionfit过盈配合:interferencefit。