UG NX12.0机械设计与产品造型

　　本书以 UG NX 12.0为基础，重点介绍了使用 UG NX 软件进行机械零件设计及产品造型的方法、步骤和技巧。全书主要内容包括 UG NX12.0简介与基础操作、UG NX 草图设计、3D 曲线设计、基准与实体建模、细节特征与工程特征、曲面设计、特征操作与同步建模、零件装配设计、工程图设计等。 本书内容丰富，选材恰当，对于重要的工具在讲解时都配有量身定制的案例，便于读者加深理解；每单元的后都有综合应用实例，单元后还有一定量的精选习题供读者练习。另外，本书配套有丰富的素材文件和教学视频，读者可在华信教育资源网（www.hxedu.com.cn）下载。

　　编写者简介：朱慕洁，机械制造专业毕业，顺德职业技术学院机电学院专职教师，曾在企业长期从事产品开发工作，主持多项校级和省级教改课题，具有丰富的实践和教学经验。

单元 1 UG NX12.0 简介与基础操作 ······················································1
1.1 UG NX12.0 简介··················································································.1
1.2 UG NX12.0 主界面 ··············································································.1
1.2.1 初始界面··················································································.1
1.2.2 工作界面··················································································.3
单元 2 UG NX 草图设计 ·····································································5
2.1 UG NX 草图简介················································································.5
2.2 任务环境草图·····················································································.5
2.2.1 设置草图平面············································································.5
2.2.2 草图设置··················································································.9
2.2.3 基本图元绘图工具······································································.9
2.2.4 高级草图工具···········································································.14
2.2.5 曲线编辑·················································································.21
2.2.6 几何约束·················································································.23
2.2.7 尺寸标注·················································································.25
2.2.8 草图综合知识···········································································.28
2.3 草图综合范例····················································································.29
综合练习 2·······························································································.34
单元 3 3D 曲线设计········································································.36
3.1 3D 曲线简介······················································································.36
3.2 基本曲线命令····················································································.36
3.2.1 直线·······················································································.36
3.2.2 圆弧/圆···················································································.37
3.2.3 艺术样条·················································································.38
3.2.4 抛物线····················································································.39
3.2.5 双曲线····················································································.39
3.2.6 一般二次曲线···········································································.40
3.2.7 螺旋线····················································································.41
3.2.8 曲面上的曲线···········································································.44
3.2.9 文本·······················································································.44
3.3 高级曲线命令····················································································.47
3.3.1 偏置曲线·················································································.47
3.3.2 偏置 3D 曲线············································································.49
3.3.3 在面上偏置曲线········································································.49
3.3.4 投影曲线·················································································.51
3.3.5 组合投影·················································································.52
3.3.6 镜像曲线·················································································.53
3.3.7 相交曲线·················································································.54
3.3.8 等参数曲线··············································································.54
3.3.9 等斜度曲线··············································································.55
3.3.10 复合曲线 ···············································································.56
3.3.11 截面曲线 ···············································································.57
3.3.12 抽取虚拟曲线 ·········································································.58
3.3.13 桥接曲线 ································································