文档介绍：毕业设计任务书 08 届机电工程系数控专业班毕业设计题目数控组毕业设计任务数控加工组一、说明书内容毕业设计任务书前言目录零件图样分析(尺寸是否完整、精度及粗糙度要求、材质及硬度要求)零件的工艺分析(加工方式及设备确定、毛坯尺寸及材料确定、装夹定位的确定、加工路径及起刀点、换刀点的确定、刀具数量、材料、几何参数的确定、切削参数的确定)切削三要素的确定(背吃刀量、进给速度/量、主轴转速)零件定位与夹具数值计算(零件轮廓的基点和节点坐标及刀具中心轨迹)编写零件的加工程序单零件图、零件的工艺文件的编制以及刀具走刀轨迹路径图程序校核及首件试切(可以运用模拟软件)12、检测验收报告13、小结(体会、对指导教师或合作者的致谢等)14、附录15、参考资料二、图纸要求1、零件图(平面及立体图,可用CAD、PRO/E或UG软件绘制)2、零件工序卡及刀具走刀运动轨迹图 2010年 12月 22 日进度安排2011年3月1日~2011年3月15日:收集素材,项目调研2011年3月16日~2011年3月25日:整理素材,查找参考资料2011年3月26日~2011年4月15日:完成初稿,交指导教师初审2011年4月16日~2011年4月25日:完成终稿,准备答辨5、2011年4月26日~2011年5月1日:毕业答辩摘要随着科技的不断发展,数控技术在企业中发挥越来越重要的作用。本设计通过对数控加工的工艺特点、加工零件工艺性等进行分析,选择正确的加工方法,设计合理的加工工艺过程,充分发挥数控加工的优质、高效、低成本的特点。设计说明书以数控铣床铣削模具类零件为例,根据被加工工件的材料、轮廓形状、加工精度等选用合适的机床,制定加工方案,确定零件的加工顺序,各工序所用的刀具,夹具和切削用量等,编写加工零件的程序。按照说明书要求将加工出零件,并对零件自检数据惊醒分析,说明在加工过程中应注意的事项。关键词工艺分析,刀具,切削用量,刀具程序,零件自检数据,加工注意事项目录前言······································································1第一章零件图图样分析······················································································································································································································3第二章零件工艺分析·····················································································································································································································································································································································6第三章工艺规程设计························································································································································································································································································································································