《机械制图与 CAD 项目教程》以项目引领、任务驱动为编写理念，紧扣机械类职业岗位需求，融合机械制图国家标准、投影理论与 CAD 实操技能，打造了理实一体、双轨并行的教学体系。全书设七大核心项目，包括平面图形的绘制、简单零件的识读与绘制、机械图样的表达、绘制标准件与常用件、零件图的识读与绘制、装配图的识读、装配图的绘制，循序渐进构建知识技能体系。本书突出应用导向，以典型零件为载体，以国家标准与规范为指导，采用尺规作图与 CAD 软件同步教学，兼顾传统制图技能与现代 CAD 技术的培养。本书图文并茂，案例贴合工程实际，并配套有任务工单与评价体系，易学易教，适用于职业院校的机械类、机电类等专业教学，也可供企业技术人员培训与自学使用。

罗胜男，在湖北铁道运输职业学院任教，先后担任《机械制图与CAD》课程负责人、《工程制图》课程负责人、《机械装调实训》课程负责人、《机械基础与液压传动》课程负责人，编写机械制图与CAD课程标准、工程制图课程标准、教学计划。长期教授机械制图与CAD课程，并多次本人参加和指导学生参加制图类、机械创意设计类竞赛，并获得奖项。

项目一 平面图形的绘制·················································································.1
任务一 绘制密封垫片的平面图形 ······························································.1
任务二 绘制吊钩的平面图形····································································.25
任务三 绘制锤头与锤柄的平面图形 ··························································.37
项目二 简单零件的识读与绘制········································································45
任务一 绘制支座的三视图·······································································.46
任务二 绘制螺栓坯的三视图····································································.53
任务三 绘制开槽正六棱柱的三视图 ··························································.63
任务四 绘制开槽圆柱的三视图 ································································.69
任务五 绘制轴承座的三视图····································································.75
项目三 机械图样的表达·················································································85
任务一 用基本视图和向视图绘制机械零件 ·················································.85
任务二 用局部视图和斜视图绘制弯板零件 ·················································.91
任务三 用全剖视图绘制泵盖零件 ·····························································.97
任务四 用半剖视图和局部剖视图绘制泵体零件 ·········································.103
项目四 绘制标准件与常用件········································································.113
任务一 绘制螺栓连接装配图····································································113
任务二 绘制直齿圆柱齿轮·····································································.129
任务三 绘制键连接与销连接··································································.137
任务四 绘制滚动轴承···········································································.147
项目五 零件图的识读与绘制········································································.160
任务一 认识零件图··············································································.161
任务二 识读与绘制轴套类零件图 ···························································.173
任务三 识读与绘制端盖零件图 ······························································.191
任务四 识读与绘制叉架类零件图 ···························································.201
任务五 识读与绘制箱体类零件图 ·····························································211
项目六 装配图的识读·················································································.219
任务一 认识装配图··············································································.220
任务二 识读齿轮泵装配图·····································································.227
项目七 装配图的绘制·················································································.245
附录·········································································································.255