wo数控刀架设计四工位lunw

CADAbstract:numericalcontrollathe,willinfuturedevelopment,themiddle-gradehighwhentobysupporting,high-gradenccutterrevisedbybothcutting,dynamictypehydrauliccutter,servocutter,verticalcutteretcvarieties,expectedinrecentyearsonthenccutterdemandwillincreasegreatly.Nccutteristhedevelopmenttrendofthedevelopmentofnumericalcontrollathe,alongwith,nccutterbegantochangecuttersquicklyandelectrohydraulicservodrivercombineddrivinganddirection.Accordingtodifferenttargets,havefourprocessingcutting,hexagonalcutterandeight(ormore)candise-typeaxialoutfitknifeknife,andotherforms.Turnthetoolcarrierseparatelyinstallsfour,sixormoretools,andpressCNCequipmentinstructionschangeknife.Thispartof4Labourverticalelectricmainlythemechanicaldesignandapplicationofcuttingtherelay-contactcontrolsystemofcontrolpartofthedesign.AndtheabovepartofCADdodiagram,amoreintuitiveelectricknifeunderstanding.Thefinalproposedtotheelectriccutterputsforwardopinionsandmeasures.Keywords:nccutter,electriccutter,four 2070 100Mx200Ms电机功率(w)刀架抬起当数控系统发出换刀指令后,通过接口电路使电机正转,经传动装置2、驱动蜗杆蜗轮机构1、蜗轮带动丝杆螺母机构8逆时针旋转,此时由于齿盘4、5处于啮合状态，在丝杆螺母机构8转位齿盘45脱离啮合状态,从而带动上刀架和齿盘产生“上台”动刀架转位当圆套9逆时针转过150°时，齿盘4、5完全脱开，此③刀架定位 270°，数控装置发出的换刀指令使霍尔开关10中的某一个选通,当磁性板11与被选通的霍尔开关对齐后,霍尔开关反馈信号使电机反转,插销7在弹簧力作用下进入反靠盘6地槽中进行粗定位上刀架体构8使上刀架移到齿盘4、5重新啮合,实现精确定位。2A8为45～55HRC，蜗轮齿圈用ZCuSn10P1 ［ð］h=200Ma［ð］f=51MaaZE160MPa=0.30螺旋齿面硬度＞45HRC，从而可查得蜗轮的基本许用应力[1.271.273538.2(160a )2心a=5dmmm=1.25mmZ

Z'因为＜Zρ，因此以上计算结果可用。直径系数：q=17.92， da1d12ha*m32.2mm(2-df1d12(ha*c*)m24.16mm（2-8）蜗杆轴向齿厚：Sa1/2m=2.512mm(2-9)pa1m1.6mm5.04mm（2-蜗轮齿数：Z2蜗轮分度圆直径：d2=mz2=72mm2-蜗轮喉母圆直径：rg2=a-1/2da2=50-1/293.5=3.25da2d22ha*m75.2mm（2-df2d22(ha*_c*)m68.16mm（2-z=1de2da22m78.4mm（2-选用45号钢，正火处理，b600MPa

F

1T9550000P955000010.56N.mm2.16105 则

tF2T3t

22.07

N1.29104d 径向力FrFttan1.29104tan204.69103 1.29104 Ft/ 1.3710

cos30

2.1cos601.37104cos304.69103cos601.42104

Frsin60Fnsin304.69103sin601.37104sin302.791032.2FBHL2FAH(L1L2) 1.42104 N5.410 1.421045.41038.8103(N MBHFAHL15.4103294.5103Nm1.59103N2.3yF9.81CFay

XFy

YF

vZFyF

142，XF0.73，YF0.67，ZF 其中ap6mm，f0.6mmrv100mF切 9.81CF切y

XFyfYFyvZFy 9.8114260730.6067NFpyFp 切F

2.4FBVL2F切L3FAV(L1L22.791031813.66103120.5N1.99103294.5

FBVFAVF

2.791031.991033.661032.86103(N FAVL11.99103294.5103586.1N 切 FL3.6610120.5103Nm441N 切2.5MB (1.59103)2586.12Nm1.69103NMCMCV441N

2.6MM d 查文献[915—1，材料为38CrM0AIA调质的许用弯曲应力[175，d

0.1

mmd5=105%×15.14=15.89mm,17mm，所按公式

2T103T2070Nmk0.5h0.514mm7mml110mmd92mm。查文献[9]表6—2，取[p]130MPa则 2T

2

58.44MPa MM d则3dB3

查文献[915—145[1600.15960.15960.145mm32mm旋合长度取55mmL2尺寸长度 34mm，蜗轮齿 b2当z1≤3时，b2，d2与轴承配合，轴承类型为推力球轴承，型号为51203I

(D4d4)

21036210103

yqa3(4la) 210 (4195145)8.4410 24B＜［B初选7级精度等级由h(2ha*得算式

取齿盘内圆直径d为120mm，齿顶高ha=ha*m=1×2=2mhf=(ha*+c*)m=2.5mm齿数z=38齿厚sm2T9.55106p19.55106601030.7517906.25N ⑷由表9-10查得材料的弹性影响系数Ze=189.8 取ａ=20°，故ZH=2.5，H