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(zhǎng)×寬×高）為140mm×140 mm×30 mm，單件生產(chǎn)零件材料為硬鋁，切削加工性能良好。加工分粗、精加工兩個(gè)階段進(jìn)行，以保證尺寸公差及表面粗糙度的要求。同時(shí)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(shí)選用平口虎鉗夾緊。以底面和側(cè)面定位，用等高墊鐵墊起，注意墊塊應(yīng)避開孔的位置，在平口虎鉗的旁邊安置一個(gè)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(tái)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(yīng)分開。走刀路線包括平面進(jìn)給和深度進(jìn)給兩部分。平面進(jìn)給時(shí)，外輪廓切削刀具從輪廓外延切線方向切入、切出，內(nèi)凹槽輪廓從過渡圓弧切入切出。為了保證表面質(zhì)量，均采用順銑方式分層環(huán)形銑削。深度進(jìn)給采用螺旋下刀方式達(dá)到既定深度。4.刀具的選擇根據(jù)零件的材料和結(jié)構(gòu)特點(diǎn)，采用高速鋼立銑刀。所選刀具及其加工表面見表1-1數(shù)控加工刀具卡片表1 零件數(shù)控加工刀具卡片序號(hào)刀具號(hào)刀具加工表面?zhèn)渥?規(guī)格名稱數(shù)量刀長(zhǎng)/mm1T0112mm高速鋼立銑刀190粗加工凸臺(tái)2T0212mm高速鋼立銑刀190精加工凸臺(tái)5.切削用量的選擇凸臺(tái)、凹槽的粗加工在平面進(jìn)給和深度進(jìn)給方向都

3、應(yīng)分層銑削，銑削時(shí)每層的側(cè)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(zhuǎn)速與進(jìn)給速度是，先查切削用量手冊(cè)，確定切削速度與每齒進(jìn)給量，然后計(jì)算進(jìn)給速度與主軸轉(zhuǎn)速，具體數(shù)值詳見加工工序卡片。6.填寫數(shù)控加工工序卡片將各工步的加工內(nèi)容、所用刀具和切削用量填入表2的數(shù)控加工工序卡片中。表2 數(shù)控加工工序卡片夾具名稱使用設(shè)備平口虎鉗XK5034工步號(hào)工步內(nèi)容刀具號(hào)刀具規(guī)格/mm主軸轉(zhuǎn)速/(r·min -1)進(jìn)給速度/(mm·min-1 )背吃刀量/mm備注1粗加工凸臺(tái)T011263010042精加工凸臺(tái)T0212900600.3二、零件的加工1.加

4、工前的準(zhǔn)備工作1.1生成加工模型圖1 加工模型1.2設(shè)定加工毛坯選擇“加工”“定義毛坯”命令，彈出“定義毛坯”對(duì)話框。選擇參照模型方式，其它參數(shù)如圖所示，單擊“確定”按鈕，完成毛坯的定義。圖2 “定義毛坯”對(duì)話框1.3后置設(shè)置(1) 選擇“加工” “后置處理” “后置設(shè)置”命令，彈出“機(jī)床后置”對(duì)話框，如圖。(2) 增加機(jī)床設(shè)置。選擇當(dāng)前機(jī)床類型。(3) 后置處理設(shè)置。選擇“后置設(shè)置”選項(xiàng)卡，根據(jù)當(dāng)前的機(jī)床，設(shè)置各參數(shù)，如圖。圖3 “機(jī)床后置”對(duì)話框圖4 機(jī)床后置設(shè)置對(duì)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(duì)話框。在“加工參數(shù)”選項(xiàng)

5、中按表3設(shè)置各項(xiàng)參數(shù) 表3 等高線粗加工參數(shù)表加工參數(shù)切削用量加工方向順銑主軸轉(zhuǎn)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(diǎn)坐標(biāo)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(shí)體刀具參數(shù)其他參數(shù)不設(shè)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(duì)話框，在加工參數(shù)選項(xiàng)中按表4設(shè)置各項(xiàng)參數(shù)。表4 等高線精加工參數(shù)表加工參數(shù)切削用量加工方向順銑主軸轉(zhuǎn)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(shù)0.1切削速度1500刪除長(zhǎng)度系數(shù)0.1退刀速度800恢復(fù)公差長(zhǎng)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(diǎn)坐標(biāo)X=0,Y=0,Z=50刀具參數(shù)毛坯類型鑄件刀具名12立銑刀零件類型輪廓型實(shí)體刀具半徑6其他參數(shù)不設(shè)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(biāo)右鍵確認(rèn)。（2）選擇“加工” “實(shí)體仿真”命令。拾取粗加工/精加工的刀具軌跡，單擊鼠標(biāo)右鍵結(jié)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(jìn)行仿真加工，并彈出仿真加工對(duì)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(duì)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(duì)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(biāo)右鍵，彈出記事本文件，內(nèi)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(duì)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(biāo)右鍵，返回“工藝清單”對(duì)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g(shù)eneral(NC數(shù)據(jù)檢查表)、function(功能參數(shù))、tool(工具)、path(刀具路徑)、ncdata(NC數(shù)據(jù))5個(gè)NC數(shù)據(jù)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(duì)話框圖10 CAXA工藝清單界面項(xiàng)目關(guān)鍵字結(jié)果備注加工策略順序號(hào)

9、CAXAMEFUNCNO1加工策略名稱CAXAMEFUNCNAME等高線粗加工標(biāo)簽文本CAXAMEFUNCBOOKMARK加工策略說明CAXAMEFUNCCOMMENT加工策略參數(shù)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(shù):0.1刪除長(zhǎng)度系數(shù):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(shí)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?qū)?/p>

10、高CAXAMEFUNCZPITCH3.Z向殘留高度CAXAMEFUNCZCUSP-主軸轉(zhuǎn)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(duì)加工余量CAXAMESTOCKALLOWANCE0.加工精度CAXAMETOLERANCE0.1起始點(diǎn)CAXAMEFUNC

11、HOMEPOSITION(0.,0.,100.)加工坐標(biāo)系CAXAMEFUNCWCS.sys.圖11 功能參數(shù)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