综合训练报告书题目雪佛莱车标零件CAD/CAM与数控加工院系专业班级专业班号学生姓名.指导教师完成日期 2011-12-25二○一一年十二月CAD/CAM与数控加工综合训练任务书题目：雪佛莱车标零件CAD/CAM与数控加工姓名系别专业机械设计制造及其自动化班级学号指导老师一、训练目的本综合训练是机械设计制造及其自动化专业教学计划中规定的专业必修课程，是学生进入专业课程学习阶段必须进行的一个重要的实践性教学环节，其目的是提高学生计算机综合应用能力，巩固和加深所学的理论知识，深入了解CAD/CAM软件在产品设计开发和加工制造过程中的作用，掌握产品数控加工的全过程，培养理论联系实际的工作作风和分析问题、解决问题的能力。

二、指定零件（图例）图0-1 雪佛莱车标毛坯尺寸Φ100mm×100mm三、训练任务1.应用Mastercam等CAD/CAM软件完成指定零件的CAD/CAM过程。

训练内容：1）指定零件的几何造型；2）工艺分析；3）刀具走刀路径的生成；4）数控仿真加工；5）指定数控系统的数控程序生成。

2.指定零件的数控切削加工训练内容：1）确定毛坯类型，编制零件的加工工序卡，填写加工程序单；2）根据已制订的加工工序卡，填写刀具调整单，动手调整、操作相应机床，完成零件的数控加工；3）正确地选用检验方法及计量器具，对零件进行质量检测和分析。

四、训练要求1) 完成指定零件的3D造型；2) 完成指定零件的2D图，并正确标注好尺寸；3）对零件进行正确的工艺分析，按指定的格式填写数控加工工艺卡片；4）刀具路径与指定数控系统的数控程序生成；5）数控加工零件，并对零件进行质量检测和分析；6）撰写综合训练说明书（上交电子稿和打印稿），说明书应涵盖整个训练内容，字数不少于3.5千字；7) 答辩与成绩的给定。

目录一.零件的CAD/CAM过程 (5)1.1 零件CAD (5)1.2零件加工工艺设计 (6)1. 3 零件CAM (7)1.3.2 加工程序的生成 (15)1.4 CAM程序清单 (15)1.5 VNUC4.0加工仿真 (25)1.6工件坐标系及工件装夹示意图 (28)二.加工过程综述 (29)心得体会： (30)参考资料： (31)一.零件的CAD/CAM过程1.1 零件CAD由零件建模所得到的模具上模体图（建模的大致过程、截取几个关键的过程图）试用UG建模后,导出igs格式的文件。

1.2零件加工工艺设计1.2.1 确定毛坯类型1）铣削零件毛坯类型：圆柱2）零件材料：塑料3）制造方法：铣削1.2.2 数控加工工艺分析1．工艺分析如图所示，零件外形规则。

工件复杂程度一般，包含了平面、圆弧表面，选用机用虎钳装夹工件，采用试切法对刀，找正工件X、y轴零点。

根据零件图样要求给出加工工序为：1：铣端面选用M50的面铣刀2：粗铣外形1 选用M16的端铣刀3：粗铣外形2 选用M8的球铣刀4：精铣外形1 选用M8的球铣刀5：精铣外形2 选用M8的球铣刀6：残料清角选用M8的球铣刀1. 3 零件CAM1.3.1刀具路径的生成小组任务分配情况平面铣削张腾04曲面粗加工挖槽刘先慧03曲面粗加工登高外形胡龙05曲面精加工环绕等距杨永赟06曲面精加工等高外形龚箭02残料清角①铣端面：加工方式：平面铣削；刀具选择：M50 面铣刀；切削参数：进给率400、提刀速度800、主轴转速800加工预留量0.8最大Z轴进给1.0加工面：铣端面参数选项卡铣端面刀具路径仿真②曲面粗加工挖槽加工方式：平行铣削，双向切削；刀具选择：M10平刀；切削参数：进给率400、主轴转速800、加工预留量0、Z轴最大进给量2.0。

加工面：曲面粗加工挖槽参数选项卡曲面挖槽粗加工刀具路径仿真③曲面粗加工：加工方式：等高外型；刀具选择：M16端铣刀；切削参数：进给率400、Z轴最大进给量2.0、提刀速度1000、主轴转速1200、加工预留量0最大切削间距0.2加工面：曲面粗加工等高外形参数选项卡曲面粗加工等高外形刀具路径仿真④曲面精加工I：加工方式：环绕等距;刀具选择：M8球刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度1000、主轴转速1200、加工预留量0、最大切削间距0.2、封闭式轮廓方向为顺时针；加工面：曲面精加工环绕等距参数选项卡曲面粗加工环绕等距刀具路径仿真⑤曲面精加工II：加工方式：等高外型；刀具选择：M8球铣刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度900、主轴转速1200、加工预留量0、最大切削间距0.5。

加工面：曲面精加工等高外形参数选项卡曲面精加工等高外形刀具路径仿真⑥残料清角加工方式：残料清角；刀具选择：M8球铣刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度900、主轴转速1200、加工预留量0、最大切削间距0.5。

加工面：曲面精加工残料清角参数选项卡曲面精加工残料清角刀具路径仿真1.3.2 加工程序的生成1.4 CAM程序清单通过后置处理产生NC加工程序，按华中HNC-21M系统编程格式编辑经后置处理所产生的程序。

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