毕业设计（论文）-凸台类零件加工设计

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1、数控技术专业毕业设计班级：姓名：指导老师：题目：凸台类零件加工日期：年月日毕业作业（论文）任务书姓名学号毕业届别届专业毕业作业（论文）题目凸台类零件加工指导教师学历在读研究生职称讲师毕业作业提要：根据毕业设计要求绘制二维图。对零件进行工艺分析。根据零件外形及尺寸要求确定加工设备。用自动编程软件仿真加工。根据零件的尺寸要求进行刀具的选择以及刀具参数的设置。由计算机自动生成程序。对程序进行后置处理（进行必要的修改）指导教师签字：年月日教研室意见：教研室主任签字：年月日题目发出日期2007.9.28设计（论文）起止时间9.28-10.30毕业作业(论文)评阅书姓名学号专业毕业作业(论文)

2、题目凸台类零件加工指导教师评语：得分指导教师签字：年月日教研室意见：教研室主任签字：年月日目录一、加工零件和工艺分析··········································1(一)、工件简介····················································2(二)、加工原点设置···············································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、凸台内外壁精加工··········································36、中心通孔加工·················

4、······························37、钻孔··························································4(四)、工件的装夹与定位·········································4(五)、数控加工工艺卡及刀具卡片································4二、用MASTERCAM进行仿真加工···································5(一)、外形铣削进行外形粗······························

5、··········5(二)、用中心钻加工定位孔········································9(三)、挖槽进行凹槽粗加工·······································10(四)、外形铣削进行外形精加工··································11(五)、外形铣削凸台内外壁加工··································12(六)、全圆铣削进行中心孔加工··································13(七)、钻孔进行孔加工···········

6、··································15三、程序后处理······················································16(一)、实体模拟切削···············································16(二)、后处理·······················································17(三)、修改后的NC程序···········································17四、小结···········

7、···················································23五、参考文献·························································24凸台零件加工图1-1加工图如1-1所示零件，零件毛坯尺寸160x160x25，材料为塑料批量生产，试分析其数控加工中心加工工艺过程。第1页一、工艺分析（一）、工件简介如图1-2所示为凸台类零件，其凸台的部位有多段圆弧和直线组成,凸台高度