零件銑削加工工藝論

1、.一、零件銑削加工工藝分析1. 零件工藝分析 零件材料為硬鋁LY12,毛坯已加工好，尺寸（長×寬×高）為140mm×140 mm×30 mm，單件生產零件材料為硬鋁，切削加工性能良好。加工分粗、精加工兩個階段進行，以保證尺寸公差及表面粗糙度的要求。同時用底面定位，以保證垂直度要求。2. 確定裝夾方案該零件外形規(guī)則，因此在加工各表面及孔時選用平口虎鉗夾緊。以底面和側面定位，用等高墊鐵墊起，注意墊塊應避開孔的位置，在平口虎鉗的旁邊安置一個定位擋塊，以起工件定位作用。3. 確定加工順序及走刀路線加工順序按先面后孔、先粗后精的原則確定。先加工凸臺輪廓，再加工孔，

2、然后加工凹槽。為了保證加工精度，各輪廓表面的粗、精加工應分開。走刀路線包括平面進給和深度進給兩部分。平面進給時，外輪廓切削刀具從輪廓外延切線方向切入、切出，內凹槽輪廓從過渡圓弧切入切出。為了保證表面質量，均采用順銑方式分層環(huán)形銑削。深度進給采用螺旋下刀方式達到既定深度。4.刀具的選擇根據零件的材料和結構特點，采用高速鋼立銑刀。所選刀具及其加工表面見表1-1數控加工刀具卡片表1 零件數控加工刀具卡片序號刀具號刀具加工表面?zhèn)渥?規(guī)格名稱數量刀長/mm1T0112mm高速鋼立銑刀190粗加工凸臺2T0212mm高速鋼立銑刀190精加工凸臺5.切削用量的選擇凸臺、凹槽的粗加工在平面進給和深度進給方向都

3、應分層銑削，銑削時每層的側吃刀量和背吃刀量都選為3mm，各輪廓表面的精加工留0.3mm的銑削余量。選擇主軸轉速與進給速度是，先查切削用量手冊，確定切削速度與每齒進給量，然后計算進給速度與主軸轉速，具體數值詳見加工工序卡片。6.填寫數控加工工序卡片將各工步的加工內容、所用刀具和切削用量填入表2的數控加工工序卡片中。表2 數控加工工序卡片夾具名稱使用設備平口虎鉗XK5034工步號工步內容刀具號刀具規(guī)格/mm主軸轉速/(r·min -1)進給速度/(mm·min-1 )背吃刀量/mm備注1粗加工凸臺T011263010042精加工凸臺T0212900600.3二、零件的加工1.加

4、工前的準備工作1.1生成加工模型圖1 加工模型1.2設定加工毛坯選擇“加工”“定義毛坯”命令，彈出“定義毛坯”對話框。選擇參照模型方式，其它參數如圖所示，單擊“確定”按鈕，完成毛坯的定義。圖2 “定義毛坯”對話框1.3后置設置(1) 選擇“加工” “后置處理” “后置設置”命令，彈出“機床后置”對話框，如圖。(2) 增加機床設置。選擇當前機床類型。(3) 后置處理設置。選擇“后置設置”選項卡，根據當前的機床，設置各參數，如圖。圖3 “機床后置”對話框圖4 機床后置設置對話框2.粗加工等高線粗加工單擊“加工” “粗加工” “等高線粗加工”或單擊按鈕，彈出“等高線粗加工”對話框。在“加工參數”選項

5、中按表3設置各項參數 表3 等高線粗加工參數表加工參數切削用量加工方向順銑主軸轉速1000層高3慢速下刀速度100行距3切入切出速度800切削模式環(huán)切切削速度1000行間連接方式直線退刀速度100加工順序Z優(yōu)先下刀方式加工精度0.1安全高度50加工余量0.5慢速下刀距離10區(qū)域切削類型僅切削退刀距離10起始點坐標X=0,Y=0,Z=50切入方式垂直毛坯類型參照模型零件類型輪廓型實體刀具參數其他參數不設定刀具名12立銑刀加工邊界刀具半徑6最小最大-55/0刀角半徑圖5 等高線粗加工軌跡3.精加工等高線精加工（1）粗加工的刀具軌跡隱藏掉（2）擊“加工” “精加工” “等高線精加工”，彈出“等高線精

6、加工”對話框，在加工參數選項中按表4設置各項參數。表4 等高線精加工參數表加工參數切削用量加工方向順銑主軸轉速2000最小層間距0.1慢速下刀速度100加工順序Z優(yōu)先切入切出速度800刪除面積系數0.1切削速度1500刪除長度系數0.1退刀速度800恢復公差長度0.001下刀方式行距6安全高度50走刀方式環(huán)切慢速下刀距離10加工精度0.01退刀距離10加工余量0切入方式垂直起始點坐標X=0,Y=0,Z=50刀具參數毛坯類型鑄件刀具名12立銑刀零件類型輪廓型實體刀具半徑6其他參數不設定刀角半徑圖6 等高線精加工軌跡4.軌跡仿真（1）單擊“線面可見”按鈕，顯示所有以生成的加工軌跡，然后拾取粗加工軌

7、跡，單擊鼠標右鍵確認。（2）選擇“加工” “實體仿真”命令。拾取粗加工/精加工的刀具軌跡，單擊鼠標右鍵結束。系統(tǒng)彈出“軌跡仿真”界面。（3）單擊“仿真加工”按鈕，系統(tǒng)將立即進行仿真加工，并彈出仿真加工對話框如圖。仿真加工過程中系統(tǒng)顯示走刀過程如圖。圖7 “仿真加工”對話框圖8 仿真加工過程5.生成G代碼（1）選擇“加工” “后置處理” “生成G代碼”命令，彈出“選擇后置文件”對話框，填寫加工代碼文件名“零件粗加工”，單擊“保存”按鈕。（2）狀態(tài)欄提示“拾取刀具軌跡”，選擇以上生成的粗加工軌跡，單擊鼠標右鍵，彈出記事本文件，內容為生成的G代碼程序。見附表1（3）同樣的方法生成精加工的G代碼程序。

8、見附表26.生成工序單選擇加工工藝清單命令，彈出工藝清單對話框，如圖。填寫加工零件名稱“零件加工”，單擊“拾取軌跡”按鈕，返回工作界面，拾取粗、精加工軌跡后，單擊鼠標右鍵，返回“工藝清單”對話框；單擊“生成清單”按鈕。彈出“CAXA工藝清單”界面，如圖。工藝清單共有general(NC數據檢查表)、function(功能參數)、tool(工具)、path(刀具路徑)、ncdata(NC數據)5個NC數據檢查表文件。至此，零件的造型、生成加工軌跡、加工軌跡仿真檢查、生成G代碼程序、生成加工工藝清單的工作全部做完。圖9 “工藝清單”對話框圖10 CAXA工藝清單界面項目關鍵字結果備注加工策略順序號

9、CAXAMEFUNCNO1加工策略名稱CAXAMEFUNCNAME等高線粗加工標簽文本CAXAMEFUNCBOOKMARK加工策略說明CAXAMEFUNCCOMMENT加工策略參數CAXAMEFUNCPARA加工方向:順銑角度0.加工順序:Z向優(yōu)先刪除面積系數:0.1刪除長度系數:0.1行間連接方式:直線添加拐角半徑:否執(zhí)行平坦區(qū)域識別:否HTML代碼XY向切入類型(行距/殘留)CAXAMEFUNCXYPITCHTYPE行距XY向行距CAXAMEFUNCXYPITCH3.XY向殘留高度CAXAMEFUNCXYCUSP-Z向切入類型(層高/殘留)CAXAMEFUNCZPITCHTYPE層高Z向層

10、高CAXAMEFUNCZPITCH3.Z向殘留高度CAXAMEFUNCZCUSP-主軸轉速CAXAMEFEEDRATESPINDLE3000 慢速下刀速度CAXAMEFEEDRATESLOWPLUNGE100.切入切出連接速度CAXAMEFEEDRATELINK800.切削速度CAXAMEFEEDRATE1000退刀速度CAXAMEFEEDRATEBACK100.安全高度CAXAMEAIRCLEARANCE100.安全高度模式CAXAMEAIRCLEARANCEMODE絕對加工余量CAXAMESTOCKALLOWANCE0.加工精度CAXAMETOLERANCE0.1起始點CAXAMEFUNC

11、HOMEPOSITION(0.,0.,100.)加工坐標系CAXAMEFUNCWCS.sys.圖11 功能參數表*;(粗加工)N10G90G54G00Z100.000N12S3000M03N14X0.000Y0.000Z100.000N16X-75.000Y-82.500N18Z35.744N20G01Z25.744F100N22Y-75.000F600N24Y75.000F800N26X75.000N28Y-75.000N30X-75.000N32X-72.000Y-72.000F600N34Y72.000F800N36X72.000N38Y-72.000N40X-72.000N42X-69

12、.000Y-69.000F600N44Y69.000F800N46X69.000N48Y-69.000N50X-69.000N52X-66.000Y-66.000F600N54Y66.000F800N56X66.000N58Y-66.000N60X-66.000N62X-63.000Y-63.000F600N64Y63.000F800N66X63.000N68Y-63.000N70X-63.000N72X-60.000Y-60.000F600N74Y60.000F800N76X60.000N78Y-60.000N80X-60.000N82X-57.000Y-57.000F600N84Y57.0

13、00F800N86X57.000N88Y-57.000N90X-57.000N92X-54.000Y-54.000F600N94Y54.000F800N96X54.000N98Y-54.000N100X-54.000N102X-51.000Y-51.000F600N104Y51.000F800N106X51.000N108Y-51.000N110X-51.000N112X-48.000Y-48.000F600N114Y48.000F800N116X48.000N118Y-48.000N120X-48.000N122X-45.000Y-45.000F600N124Y45.000F800N126X

14、45.000N128Y-45.000N130X-45.000N132X-42.000Y-42.000F600N134Y42.000F800N136X42.000N138Y-42.000N140X-42.000N142X-39.000Y-39.000F600N144Y39.000F800N146X39.000N148Y-39.000N150X-39.000N152X-36.000Y-36.000F600N154Y36.000F800N156X36.000N158Y-36.000N160X-36.000N162X-33.000Y-33.000F600N164Y33.000F800N166X33.0

15、00N168Y-33.000N170X-33.000N172X-30.000Y-30.000F600N174Y30.000F800N176X30.000N178Y-30.000N180X-30.000N182X-27.000Y-27.000F600N184Y27.000F800N186X27.000N188Y-27.000N190X-27.000N192X-24.000Y-24.000F600N194Y24.000F800N196X24.000N198Y-24.000N200X-24.000N202X-21.000Y-21.000F600N204Y21.000F800N206X21.000N2

16、08Y-21.000N210X-21.000N212X-18.000Y-18.000F600N214Y18.000F800N216X18.000N218Y-18.000N220X-18.000N222X-15.000Y-15.000F600N224Y15.000F800N226X15.000N228Y-15.000N230X-15.000N232X-12.000Y-12.000F600N234Y12.000F800N236X12.000N238Y-12.000N240X-12.000N242X-9.000Y-9.000F600N244Y9.000F800N246X9.000N248Y-9.00

17、0N250X-9.000N252X-6.000Y-6.000F600N254Y6.000F800N256X6.000N258Y-6.000N260X-6.000N262X-3.000Y-3.000F600N264Y3.000F800N266X3.000N268Y-3.000N270X-3.000N272X-1.000Y-1.000F600N274Y1.000F800N276X1.000N278Y-1.000N280X-1.000N282Z35.744F100N284G00Z40.000N286X-75.000Y-82.500N288Z33.744N290G01Z23.744F100N292Y-

18、75.000F600N294Y75.000F800N296X75.000N298Y-75.000N300X-75.000N302X-74.966Y-74.966F600N304X-75.000Y-74.932F800N306Y74.913N308X-74.913Y75.000N310X74.932N312X75.000Y74.932N314Y-74.920N316X74.920Y-75.000N318X-74.932N320X-74.966Y-74.966N322X-72.844Y-72.845F600N324G02X-75.000Y-70.623I72.820J72.803F800N326G

19、01Y70.604N328G02X-73.305Y72.363I74.881J-70.489N330G02X-70.604Y75.000I73.328J-72.387N332G01X70.624N334G02X72.362Y73.325I-70.256J-74.642N336G01X72.377Y73.309N338X72.381Y73.306N340X72.399Y73.288Z23.743N342G02X75.000Y70.622I-72.586J-73.420N344G01Y-70.611N346G02X70.610Y-75.000I-74.920J70.547N348G01X-70.6

20、23N350G02X-72.361Y-73.325I69.841J74.216N352G01X-72.367Y-73.320N354X-72.382Y-73.305N356G02X-72.844Y-72.845I81.270J82.209N358G01X-70.723Y-70.724F600N360G02X-75.000Y-66.170I70.705J70.690F800N362G01Y66.151N364G02X-71.170Y70.255I75.033J-66.183N366G02X-66.151Y75.000I71.151J-70.234N368G01X66.170N370G02X70.

21、255Y71.189I-66.143J-74.992N372G01X70.270Y71.175N374X70.273Y71.171N376X70.290Y71.154N378G02X75.000Y66.168I-70.358J-71.170N380G01Y-66.159N382G02X66.157Y-75.000I-75.009J66.185N384G01X-66.170N386G02X-70.254Y-71.190I66.179J75.040N388G01X-70.260Y-71.184N390X-70.274Y-71.170N392G02X-70.723Y-70.724I66.328J67

22、.178N394G01X-68.601Y-68.603F600N396G02X-75.000Y-61.541I68.626J68.606F800N398G01Y61.522N400G02X-69.035Y68.147I75.004J-61.525N402G02X-61.522Y75.000I69.045J-68.157N404G01X61.541N406G02X68.148Y69.054I-61.549J-75.028N408G01X68.162Y69.040N410X68.165Y69.037N412X68.181Y69.021N414G02X75.000Y61.537I-68.261J-6

23、9.048N416G01Y-61.531N418G02X61.527Y-75.000I-75.010J61.557N420G01X-61.540N422G02X-68.147Y-69.054I61.517J75.005N424G01X-68.153Y-69.049N426X-68.166Y-69.036Z23.742N428G02X-68.601Y-68.603I72.069J72.954N430G01X-66.480Y-66.482F600N432G02X-75.000Y-56.693I66.488J66.472F800N434G01Y56.674N436G02X-66.900Y66.040

24、I74.997J-56.673N438G02X-56.674Y75.000I66.908J-66.047N440G01X56.693N442G02X66.041Y66.918I-56.687J-75.015N444G01X66.054Y66.905N446X66.057Y66.902N448X66.072Y66.887N450G02X75.000Y56.688I-66.128J-66.893N452G01Y-56.684N454G02X56.679Y-75.000I-75.009J56.709N456G01X-56.692N458G02X-66.040Y-66.919I56.680J75.01

25、6N460G01X-66.045Y-66.914N462X-66.058Y-66.901N464G02X-66.480Y-66.482I62.776J63.588N466G01X-64.358Y-64.361F600N468G02X-75.000Y-51.564I64.376J64.358F800N470G01Y51.545N472G02X-64.765Y63.932I75.014J-51.558N474G02X-51.545Y75.000I64.769J-63.935N476G01X51.564N478G02X63.934Y64.783I-51.555J-75.010N480G01X63.9

26、46Y64.771N482X63.949Y64.767N484X63.963Y64.754N486G02X75.000Y51.558I-64.023J-64.764N488G01Y-51.557N490G02X51.550Y-75.000I-75.006J51.579N492G01X-51.563N494G02X-63.933Y-64.783I51.562J75.029N496G01X-63.938Y-64.778N498X-63.950Y-64.767N500G02X-64.358Y-64.361I74.931J75.801N502G01X-62.237Y-62.240F600N504G02

27、X-75.000Y-46.061I62.244J62.228F800N506G01Y46.042N508G02X-62.630Y61.825I75.007J-46.050N510G02X-46.042Y75.000I62.640J-61.835N512G01X46.062N514G02X61.827Y62.647I-46.059J-75.018N516G01X61.838Y62.636N518X61.841Y62.633N520X61.854Y62.620N522G02X75.000Y46.054I-61.908J-62.626N524G01Y-46.057N526G02X46.046Y-75

28、.000I-75.008J46.081N528G01X-46.059N530G02X-61.826Y-62.648I46.059J75.031N532G01X-61.831Y-62.643N534X-61.841Y-62.633N536G02X-62.237Y-62.240I55.047J55.779N538G01X-60.115Y-60.119F600N540G02X-75.000Y-40.030I60.127J60.111F800N542G01Y40.011N544G02X-60.495Y59.717I75.012J-40.022N546G02X-40.011Y75.000I60.505J

29、-59.728N548G01X40.031N550G02X59.720Y60.511I-40.021J-75.009N552G01X59.730Y60.502Z23.744N554X59.733Y60.498Z23.744N556X59.745Y60.487N558G02X75.000Y40.021I-59.807J-60.498N560G01Y-40.029N562G02X40.014Y-75.000I-75.006J40.052N564G01X-40.027N566G02X-59.719Y-60.512I40.017J75.018N568G01X-59.724Y-60.508N570X-5

30、9.733Y-60.498N572G02X-60.115Y-60.119I59.913J60.674N574G01X-57.993Y-57.998F600N576G02X-75.000Y-33.184I58.002J57.988F800N578G01Y33.165N580G02X-58.360Y57.610I75.010J-33.175N582G02X-33.165Y75.000I58.369J-57.617N584G01X33.184N586G02X57.613Y58.376I-33.175J-75.009N588G01X57.622Y58.367N590X57.625Y58.364N592

31、X57.635Y58.353N594G02X75.000Y33.172I-57.696J-58.363N596G01Y-33.188N598G02X33.167Y-75.000I-75.006J33.210N600G01X-33.180N602G02X-57.612Y-58.377I33.174J75.023N604G01X-57.617Y-58.372N606X-57.625Y-58.364N608G02X-57.993Y-57.998I55.796J56.500N610G01X-55.872Y-55.877F600N612G02X-75.000Y-24.858I55.883J55.868F

32、800N614G01Y24.839N616G02X-56.225Y55.502I75.009J-24.848N618G02X-24.839Y75.000I56.234J-55.510N620G01X24.858N622G02X55.506Y56.240I-24.849J-75.010N624G01X55.514Y56.232N626X55.517Y56.229N628X55.526Y56.220N630G02X75.000Y24.842I-55.586J-56.230N632G01Y-24.862N634G02X73.221Y-29.701I-75.025J24.840N636G01X73.2

33、16Y-29.713N638X73.214Y-29.717N640X73.210Y-29.728N642G02X24.839Y-75.000I-73.216J29.751N644G01X-24.852N646G02X-55.505Y-56.241I24.846J75.023N648G01X-55.510Y-56.237N650X-55.517Y-56.229N652G02X-55.872Y-55.877I56.487J57.178N654G01X-53.750Y-53.756F600N656G02X-75.000Y-12.352I53.759J53.746F800N658G01Y12.333N

34、660G02X-54.090Y53.395I75.009J-12.342N662G02X-12.333Y75.000I54.100J-53.404N664G01X12.353N666G02X53.399Y54.105I-12.343J-75.010N668G01X53.406Y54.098N670X53.409Y54.094N672X53.417Y54.087N674G02X75.000Y12.328I-53.477J-54.096N676G01Y-12.348N678G02X70.440Y-28.575I-75.055J12.336N680G01X70.436Y-28.584N682X70.

35、434Y-28.589N684X70.430Y-28.599N686G02X12.327Y-75.000I-70.437J28.622N688G01X-12.340N690G02X-53.398Y-54.105I12.334J75.023N692G01X-53.402Y-54.101N694X-53.409Y-54.095N696G02X-53.750Y-53.756I63.888J64.625N698G01X-51.629Y-51.635F600N700G02X-51.955Y51.287I51.638J51.625F800N702G02X51.292Y51.969I51.965J-51.2

36、96N704G01X51.298Y51.963N706X51.301Y51.960N708X51.308Y51.953N710G02X67.660Y-27.448I-51.369J-51.963N712G01X67.656Y-27.457N714X67.654Y-27.461N716X67.651Y-27.470N718G02X-51.291Y-51.970I-67.657J27.493N720G01X-51.295Y-51.966N722X-51.301Y-51.960N724G02X-51.629Y-51.635I44.199J44.799N726G01X-49.507Y-49.514F6

37、00N728G02X-49.820Y49.179I49.517J49.504F800N730G02X49.185Y49.834I49.830J-49.189N732G01X49.190Y49.829N734X49.194Y49.825N736X49.199Y49.820N738G02X64.879Y-26.322I-49.260J-49.829N740G01X64.876Y-26.329N742X64.875Y-26.333N744X64.872Y-26.340N746G02X-49.184Y-49.834I-64.878J26.363N748G01X-49.188Y-49.831N750X-

38、49.193Y-49.826N752G02X-49.507Y-49.514I54.245J54.889N754G01X-47.386Y-47.392F600N756G02X-47.685Y47.072I47.395J47.383F800N758G02X47.078Y47.698I47.695J-47.081N760G01X47.082Y47.694N762X47.086Y47.691N764X47.090Y47.686N766G02X62.099Y-25.195I-47.151J-47.696N768G01X62.097Y-25.201N770X62.095Y-25.205N772X62.09

39、2Y-25.211N774G02X-47.077Y-47.699I-62.099J25.234N776G01X-47.081Y-47.695N778X-47.085Y-47.691N780G02X-47.385Y-47.393I44.658J45.228N782G01X-45.264Y-45.271F600N784G02X-45.550Y44.964I45.274J45.262F800N786G02X44.971Y45.562I45.560J-44.974N788G01X44.974Y45.559N790X44.978Y45.556N792X44.981Y45.553N794G02X59.31

40、8Y-24.069I-45.042J-45.562N796G01X59.317Y-24.073N798X59.315Y-24.077N800X59.313Y-24.082N802G02X-44.970Y-45.563I-59.320J24.104N804G01X-44.974Y-45.560N806X-44.977Y-45.557N808G02X-45.264Y-45.271I45.322J45.879N810G01X-43.142Y-43.150F600N812G02X-43.415Y42.857I43.152J43.141F800N814G02X42.864Y43.427I43.425J-

41、42.866N816G01X42.866Y43.425N818X42.870Y43.421N820X42.872Y43.419N822G02X56.538Y-22.942I-42.932J-43.429N824G01X56.537Y-22.945N826X56.535Y-22.949N828X56.534Y-22.952N830G02X-42.864Y-43.427I-56.540J22.975N832G01X-42.866Y-43.425N834X-42.868Y-43.423N836G02X-43.142Y-43.150I33.637J34.121N838G01X-41.021Y-41.0

42、29F600N840G02X-58.009Y-0.009I41.029J41.019F800N842G02X-41.280Y40.749I58.019J-0.000N844G02X40.757Y41.291I41.290J-40.759N846G01X40.758Y41.290N848X40.762Y41.287N850X40.763Y41.286N852G02X53.757Y-21.815I-40.823J-41.296N854G01Y-21.817N856X53.755Y-21.822N858X53.755Y-21.823N860G02X-40.757Y-41.292I-53.761J21

43、.846N862G01X-40.759Y-41.289N864X-40.760Y-41.288N866G02X-41.021Y-41.029I41.860J42.380N868G01X-38.899Y-38.908F600N870G02X-55.009Y-0.009I38.908J38.899F800N872G02X-39.145Y38.642I55.018J0.000N874G02X38.650Y39.156I39.155J-38.651N876G01X38.654Y39.152N878G02X50.977Y-20.689I-38.714J-39.162N880G01X50.975Y-20.

44、694N882G02X-38.650Y-39.156I-50.982J20.716N884G01X-38.652Y-39.154N886G02X-38.899Y-38.908I37.680J38.142N888G01Z33.744F100N890G00Z40.000N892X-75.000Y-82.500N894Z31.744N896G01Z21.744F100N898Y-75.000F600N900Y75.000F800N902X75.000N904Y-75.000N906X-75.000N908X-73.167Y-73.167F600N910X-73.269Y-73.064F800N912

45、G02X-75.000Y-71.287I73.358J73.150N914G01Y71.284N916G02X-73.065Y73.266I75.348J-71.622N918G02X-71.284Y75.000I73.097J-73.301N920G01X71.287N922G02X73.249Y73.084I-71.010J-74.723N924G02X75.000Y71.288I-73.202J-73.099N926G01Y-71.284N928G02X71.284Y-75.000I-75.140J71.417N930G01X-71.287N932G02X-73.167Y-73.167I

46、71.466J75.175N934G01X-71.045Y-71.046F600N936X-71.145Y-70.946F800N938G02X-75.000Y-66.858I71.131J70.930N940G01Y66.855N942G02X-70.946Y71.142I74.929J-66.786N944G02X-66.855Y75.000I70.985J-71.184N946G01X66.857N948G02X71.126Y70.965I-66.738J-74.877N950G02X75.000Y66.861I-70.934J-70.840N952G01Y-66.855N954G02X

47、66.855Y-75.000I-75.016J66.864N956G01X-66.858N958G02X-71.045Y-71.046I66.802J74.936N960G01X-68.924Y-68.924F600N962G02X-69.021Y-68.828I15.590J15.671F800N964G02X-75.000Y-62.258I69.031J68.835N966G01Y62.255N968G02X-68.828Y69.018I75.001J-62.256N970G02X-62.255Y75.000I68.836J-69.027N972G01X62.258N974G02X69.0

48、03Y68.846I-62.225J-74.967N976G02X75.000Y62.264I-68.830J-68.739N978G01Y-62.255N980G02X62.256Y-75.000I-74.998J62.246N982G01X-62.259N984G02X-68.924Y-68.924I62.277J75.015N986G01X-66.803Y-66.803F600N988X-66.897Y-66.709F800N990G02X-75.000Y-57.448I66.911J66.719N992G01Y57.445（篇幅所限程序未完）（精加工）N10G90G54G00Z100.

49、000N12S3000M03N14X0.000Y0.000Z100.000N16X-50.382N18Z34.254N20G01Z24.254F100N22G02X-50.320Y2.500I50.589J-0.006F1000N24G02X-26.657Y42.755I50.293J-2.481N26G02X-4.375Y50.186I26.543J-42.470N28G02X12.617Y48.782I4.428J-49.910N30G02X50.319Y-2.500I-12.608J-48.770N32G02X-2.500Y-50.319I-50.320J2.500N34G02X-50.

50、382Y0.000I2.500J50.320N36G01X-52.004F800N38Z23.254N40G02X-30.991Y41.762I52.020J-0.006F1000N42G02X-27.714Y44.002I30.272J-40.777N44G02X-12.831Y50.392I27.603J-43.762N46G02X-7.533Y51.453I12.838J-50.362N48G02X51.434Y7.673I7.544J-51.441N50G02X51.977Y-0.625I-47.826J-7.297N52G01X51.989Y-1.250N54X51.940Y-2.5

51、00N56X51.871Y-3.750N58X51.757Y-5.000N60G02X50.625Y-11.915I-53.787J5.254N62G02X-21.156Y-47.506I-50.625J11.923N64G02X-43.906Y-27.873I21.156J47.513N66G01X-44.433Y-27.031N68G02X-52.004Y0.000I44.450J27.024N70G01X-53.039F800N72Z22.254N74G02X-8.444Y52.361I53.041J-0.004F1000N76G02X37.969Y37.035I8.445J-52.36

52、5N78G02X46.861Y-24.844I-37.974J-37.035N80G02X-31.416Y-42.733I-46.862J24.849N82G02X-49.557Y-18.906I31.416J42.739N84G02X-53.039Y0.000I49.559J18.902N86G01X-53.784F800N88Z21.254N90G02X-47.316Y25.574I53.784J0.002F1000N92G02X-9.011Y53.023I47.314J-25.574N94G02X37.874Y38.185I9.010J-53.023N96G02X38.185Y-37.8

53、74I-37.873J-38.185N98G02X-37.874Y-38.185I-38.185J37.873N100G02X-53.784Y0.000I37.873J38.188N102G01X-54.308F800N104Z20.254N106G02X-9.170Y53.528I54.308J-0.000F1000N108G02X54.119Y4.531I9.170J-53.528N110G02X-18.482Y-51.070I-54.114J-4.540N112G02X-54.119Y-4.531I18.458J51.048N114G02X-54.308Y0.000I54.085J4.529N116G01X-54.690F800N118Z19.254N120G02X-54.603Y2.812I74.102J-0.877F1000N122G02X-9.293Y53.889I54.582J-2.784N124G02X-4.532Y54.495I9.270J-53.842N126G02X-2.187Y54.629I3.916J-47.659N128G01X-1.563Y54.659N130G02X52.201Y16.302I1.570J-54.657N132G01