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1、數(shù)控技術(shù)專業(yè)畢業(yè)設(shè)計(jì)班級(jí)：姓名：指導(dǎo)老師：題目：凸臺(tái)類零件加工日期：年月日畢業(yè)作業(yè)（論文）任務(wù)書姓名學(xué)號(hào)畢業(yè)屆別屆專業(yè)畢業(yè)作業(yè)（論文）題目凸臺(tái)類零件加工指導(dǎo)教師學(xué)歷在讀研究生職稱講師畢業(yè)作業(yè)提要：根據(jù)畢業(yè)設(shè)計(jì)要求繪制二維圖。對(duì)零件進(jìn)行工藝分析。根據(jù)零件外形及尺寸要求確定加工設(shè)備。用自動(dòng)編程軟件仿真加工。根據(jù)零件的尺寸要求進(jìn)行刀具的選擇以及刀具參數(shù)的設(shè)置。由計(jì)算機(jī)自動(dòng)生成程序。對(duì)程序進(jìn)行后置處理（進(jìn)行必要的修改）指導(dǎo)教師簽字：年月日教研室意見：教研室主任簽字：年月日題目發(fā)出日期2007.9.28設(shè)計(jì)（論文）起止時(shí)間9.28-10.30畢業(yè)作業(yè)(論文)評(píng)閱書姓名學(xué)號(hào)專業(yè)畢業(yè)作業(yè)(論文)
2、題目凸臺(tái)類零件加工指導(dǎo)教師評(píng)語：得分指導(dǎo)教師簽字：年月日教研室意見：教研室主任簽字：年月日目錄一、加工零件和工藝分析··········································1(一)、工件簡(jiǎn)介····················································2(二)、加工原點(diǎn)設(shè)置···············································2(三)、加工工步分析···············································21、外形粗加工·········
3、·········································22、定位孔加工··················································33、凹槽粗加工··················································34、外形精加工··················································35、凸臺(tái)內(nèi)外壁精加工··········································36、中心通孔加工·················
4、······························37、鉆孔··························································4(四)、工件的裝夾與定位·········································4(五)、數(shù)控加工工藝卡及刀具卡片································4二、用MASTERCAM進(jìn)行仿真加工···································5(一)、外形銑削進(jìn)行外形粗······························
5、··········5(二)、用中心鉆加工定位孔········································9(三)、挖槽進(jìn)行凹槽粗加工·······································10(四)、外形銑削進(jìn)行外形精加工··································11(五)、外形銑削凸臺(tái)內(nèi)外壁加工··································12(六)、全圓銑削進(jìn)行中心孔加工··································13(七)、鉆孔進(jìn)行孔加工···········
6、··································15三、程序后處理······················································16(一)、實(shí)體模擬切削···············································16(二)、后處理·······················································17(三)、修改后的NC程序···········································17四、小結(jié)···········
7、···················································23五、參考文獻(xiàn)·························································24凸臺(tái)零件加工圖1-1加工圖如1-1所示零件，零件毛坯尺寸160x160x25，材料為塑料批量生產(chǎn)，試分析其數(shù)控加工中心加工工藝過程。第1頁一、工藝分析（一）、工件簡(jiǎn)介如圖1-2所示為凸臺(tái)類零件，其凸臺(tái)的部位有多段圓弧和直線組成,凸臺(tái)高度
