数控加工技术

项目一 数控加工技术基础        任务：学习数控机床的基本操作                 任务引入                 任务分析                 知识准备                         一、数控机床的概念                         二、数控机床的组成                         三、数控机床的分类                         四、数控机床加工的特点                         五、数控机床的应用                         六、数控面板功能介绍                 任务实施                         一、开机操作                         二、回参考点操作                         三、主轴转动操作                         四、mdi面板操作                         五、关机操作                 任务评价                 知识拓展         项目小结         项目检测  项目二 数控加工工艺设计        任务一：拟定简单零件加工的工艺流程                 任务引入                 任务分析                 知识准备                         一、数控加工的工艺特点                         二、数控加工的工艺内容                 任务实施                 任务评价                 知识拓展         任务二：分析复杂零件加工的工艺                 任务引入                 任务分析                 知识准备                         一、零件图样的工艺性分析                         二、零件结构的工艺性分析                         三、毛坯选择分析                         四、定位基准的选择与分析                 任务实施                         一、毛坯的制造形式                         二、加工方法的选择                         三、加工阶段的划分                         四、工序的集中与分散                         五、定位基准的选择                 任务评价         任务三：设计数控加工的工艺路线                 任务引入                 任务分析                 知识准备                         一、表面加工方法的选择                         二、工序的划分与安排                 任务实施                         一、加工工艺分析                         二、确定加工路线                 任务评价         任务四：设计数控加工的工序                 任务引入                 任务分析                 知识准备                         一、工装设备的选择                         二、加工路线的确定                         三、切削用量的选择                         四、制作数控加工的工艺文件                 任务实施                         一、分析零件工艺性能                         二、选定加工内容                         三、选用毛坯或明确来料状况                         四、确定装夹方案                         五、确定加工方案                         六、确定加工顺序、选择加工刀具                         七、确定加工路线                         八、填写工序卡片                 任务评价         拓展实训：轴类零件的工艺设计                 实训目标                 实训要求                 实训准备                 实训步骤         项目小结         项目检测   项目三 数控加工的程序编制        任务一：编制简单零件的加工程序                 任务引入                 任务分析                 知识准备                         一、零件程序编制的内容及步骤                         二、零件程序编制的方法                 任务实施                         一、分析加工工艺                         二、编写加工技术文件                         三、参考程序                 任务评价                 知识拓展         任务二：加工简单轴类零件                 任务引入                 任务分析                 知识准备                         一、坐标轴和运动方向命名的原则                         二、坐标系                         三、零件程序的组成                         四、加工程序的指令代码                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价                 知识拓展         任务三：编写复杂零件的加工程序                 任务引入                 任务分析                 知识准备                 圆弧、圆锥的加工方法                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价         项目小结         项目检测   项目四 数控车削加工技术        任务一：认识数控车床                 任务引入                 任务分析                 知识准备                         一、数控车床的用途                         二、数控车床的分类                         三、数控车床的特点                 任务实施                         一、安全文明生产知识                         二、参观实训车间                 任务评价                 知识拓展         任务二：加工简单阶梯轴                 任务引入                 任务分析                 知识准备                         一、数控车床的编程特点                         二、手工编程中的数学处理                         三、数控车床制定加工方案的要求                         四、fanuc i系统数控车床的编程指令                 任务实施                         一、任务工艺分析                         二、程序编制                 任务评价                 知识拓展         任务三：加工螺纹轴类零件                 任务引入                 任务分析                 知识准备                         一、螺纹术语与计算                         二、三角螺纹车刀                         三、三角螺纹车刀螺纹常用指令                         四、螺纹的加工方法                 任务实施                         一、螺纹轴的工艺设计                         二、编制加工程序                 任务评价         任务四：加工简单套类零件                 任务引入                 任务分析                 知识准备                         一、孔加工刀具的种类及用途                         二、线性轮廓加工循环指令（g71、g72、g70）                 任务实施                         一、轴套的工艺设计                         二、编制加工程序                 任务评价                 知识拓展         任务五：加工复合轴类零件                 任务引入                 任务分析                 知识准备                         一、数控车床典型夹具                         二、固定形状粗车循环                 任务实施                         一、加工工艺分析                         二、加工程序编制                 任务评价         任务六：用户宏程序加工非圆曲线                 任务引入                 任务分析                 知识准备                         一、用户宏程序的定义                         二、用户宏程序的变量                         三、用户宏程序的格式与调用                         四、a类型用户宏程序                         五、b类型用户宏程序                 任务实施                         一、加工工艺分析                         二、加工程序编制                 任务评价          拓展实训：车削对刀与mdi加工                实训目标                 实训要求                 实训步骤                 实训报告要求                 实训检测          项目小结         项目检测  项目五 数控铣削加工技术        任务一：认识数控铣床                 任务引入                 任务分析                 知识准备                         一、数控铣床的分类                         二、数控铣床的加工对象                 任务实施                 任务评价                 知识拓展         任务二：加工台阶类零件                 任务引入                 任务分析                 知识准备                         一、工件的装夹与加工方法                         二、选择刀具与铣削用量                         三、fanuc i系统数控铣床的 编程指令                         四、g功能指令介绍                 任务实施                         一、加工分析                         二、编写程序                 任务评价         任务三：加工轮廓类零件                 任务引入                 任务分析                 知识准备                         一、子程序指令                         二、刀具补偿功能指令                 任务实施                         一、加工分析                         二、加工程序分析                 任务评价         任务四：加工孔类零件                 任务引入                 任务分析                 知识准备                         一、选择孔加工的方法                         二、选择孔加工的刀具与切削用量                         三、孔加工固定循环功能指令                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价                 知识拓展         任务五：加工螺纹孔零件                 任务引入                 任务分析                 知识准备                         一、左旋螺纹攻螺纹与右旋螺纹攻螺纹循环                         二、螺纹加工方法的选择                         三、攻螺纹及铣螺纹加工路线                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价         拓展实训：铣削对刀与mdi加工                 实训目标                 实训准备                 实训步骤                 实训报告                 教师评分          项目小结         项目检测   项目六 数控加工中心加工技术        任务一：认识数控加工中心                 任务引入                 任务分析                 知识准备                         一、数控加工中心的分类                         二、数控加工中心的基本结构                         三、数控加工中心的特点                 任务实施                 任务评价                 知识拓展         任务二：加工十字型腔零件                任务引入                 任务分析                 知识准备                         一、数控加工中心的编程特点与要点                         二、数控加工中心的对刀及参数设置                         三、fanuc i系统的加工中心编程指令                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价                 知识拓展         任务三：加工盘类零件                 任务引入                 任务分析                 知识准备                 坐标系旋转功能指令（g68、g69）                 任务实施                         一、加工分析                         二、加工程序编制                 任务评价         拓展实训：凸台槽孔板零件加工                 实训任务                 实训要求                 实训目标                 实训准备                 实训步骤                 一、识读零件图                 二、加工工艺分析                 三、刀具与铣削用量的选择                 四、加工步骤                 实训报告                 教师评分         项目小结         项目检测  项目七 数控线切割加工技术        任务一：认识数控线切割机床                 任务引入                 任务分析                 知识准备                         一、电火花线切割加工技术                         二、电火花线切割机的分类                         三、电火花线切割机的结构特点                         四、电火花线切割机的常用功能                         五、电火花线切割加工的特点及应用                 任务实施                         一、线切割机床的结构及操作说明                         二、线切割加工基本操作                 任务评价                 知识拓展         任务二：数控电火花线切割机床的常用编程方法                 任务引入                 任务分析                 知识准备                         一、常用的iso代码简介                         二、b代码编程                         三、编程实例                 任务实施                 任务评价                 知识拓展         任务三：数控电火花线切割加工工艺                任务引入                 任务分析                 知识准备                         一、电火花线切割加工的工艺指标                         二、电火花线切割加工的工艺过程                 任务实施                 任务评价                 知识拓展          拓展实训：电火花线切割机床手工编程                实训目标                 实训准备                 实训内容                 实训报告                 教师评分          项目小结         项目检测  参考文献