wo數(shù)控刀架設(shè)計四工位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電機功率(w)刀架抬起當數(shù)控系統(tǒng)發(fā)出換刀指令后,通過接口電路使電機正轉(zhuǎn),經(jīng)傳動裝置2、驅(qū)動蝸桿蝸輪機構(gòu)1、蝸輪帶動絲桿螺母機構(gòu)8逆時針旋轉(zhuǎn),此時由于齒盤4、5處于嚙合狀態(tài)，在絲桿螺母機構(gòu)8轉(zhuǎn)位齒盤45脫離嚙合狀態(tài),從而帶動上刀架和齒盤產(chǎn)生“上臺”動刀架轉(zhuǎn)位當圓套9逆時針轉(zhuǎn)過150°時，齒盤4、5完全脫開，此③刀架定位 270°，數(shù)控裝置發(fā)出的換刀指令使霍爾開關(guān)10中的某一個選通,當磁性板11與被選通的霍爾開關(guān)對齊后,霍爾開關(guān)反饋信號使電機反轉(zhuǎn),插銷7在彈簧力作用下進入反靠盤6地槽中進行粗定位上刀架體構(gòu)8使上刀架移到齒盤4、5重新嚙合,實現(xiàn)精確定位。2A8為45～55HRC，蝸輪齒圈用ZCuSn10P1 ［e］h=200Ma［e］f=51MaaZE160MPa=0.30螺旋齒面硬度＞45HRC，從而可查得蝸輪的基本許用應(yīng)力[1.271.273538.2(160a )2心a=5dmmm=1.25mmZ

Z'因為＜Zρ，因此以上計算結(jié)果可用。直徑系數(shù)：q=17.92， da1d12ha*m32.2mm(2-df1d12(ha*c*)m24.16mm（2-8）蝸桿軸向齒厚：Sa1/2m=2.512mm(2-9)pa1m1.6mm5.04mm（2-蝸輪齒數(shù)：Z2蝸輪分度圓直徑：d2=mz2=72mm2-蝸輪喉母圓直徑：rg2=a-1/2da2=50-1/293.5=3.25da2d22ha*m75.2mm（2-df2d22(ha*_c*)m68.16mm（2-z=1de2da22m78.4mm（2-選用45號鋼，正火處理，b600MPa

F

1T9550000P955000010.56N.mm2.16105 則

tF2T3t

22.07

N1.29104d 徑向力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 查文獻[915—1，材料為38CrM0AIA調(diào)質(zhì)的許用彎曲應(yīng)力[175，d

0.1

mmd5=105%×15.14=15.89mm,17mm，所按公式

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

2

58.44MPa MM d則3dB3

查文獻[915—145[1600.15960.15960.145mm32mm旋合長度取55mmL2尺寸長度 34mm，蝸輪齒 b2當z1≤3時，b2，d2與軸承配合，軸承類型為推力球軸承，型號為51203I

(D4d4)

21036210103

yqa3(4la) 210 (4195145)8.4410 24B＜［B初選7級精度等級由h(2ha*得算式

取齒盤內(nèi)圓直徑d為120mm，齒頂高ha=ha*m=1×2=2mhf=(ha*+c*)m=2.5mm齒數(shù)z=38齒厚sm2T9.55106p19.55106601030.7517906.25N ⑷由表9-10查得材料的彈性影響系數(shù)Ze=189.8 取ａ=20°，故ZH=2.5，H