数控编程与加工课程设计 铣床.doc

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1、《数控编程与加工》课程设计班级姓名学号组员指导老师上海电机学院高职学院2013年6月目录《数控编程与加工》课程设计任务书································《数控编程与加工》课程设计课题··································1.课题分析···············································1.1零件图分析···················································1.2加工要求·····························

2、························2.工艺规划···············································2.1选择加工方案·················································2.2工装设计·····················································2.3工序划分·····················································2.4工艺文件···························

3、··························3.程序编制·············································3.1编程准备····················································3.2特色指令···················································3.3程序单······················································4.数控仿真·····························

4、················4.1仿真概述····················································4.2工装准备····················································4.3程序编制与输入··············································4.4加工仿真····················································总结参考文献《数控编程与加工》课程设计任务书一、课程设计目的1．复习和巩固已学过

5、的“数控编程与操作”理论知识和操作技能，适当拓展“数控编程与操作”的深度和广度。2．培养学生运用“数控编程与操作”技能，结合学过的机床、工艺、工夹具等专业知识，完成零件编程和加工的综合能力。3．学习和训练查阅各种技术资料，编制相关的专业技术文件的基本技能。二、课程设计要求1．完成指定的课程设计课题，达到以下基本要求：1）课题分析：明确加工内容和加工要求。2）工艺规划：制定工艺方案；选定工艺参数；完成零件、刀具、夹具的选择、定位和安装；编制工序卡、刀具卡等技术文件。3）程序编制：建立编程坐标系；编写数控加工程序单。4）刀轨模拟：检验加工程序准确无误。5）仿真加工：检验零件加

6、工尺寸的基本正确。6）打印输出：正确反映模拟、仿真等加工信息。2．编写能够体现整个设计思想、设计要求、设计过程的课程设计说明书，并装订成册。3．准备课程设计答辩。三、课程设计课题（见下一页）四、课程设计步骤1．复习、巩固学过并将要用到的专业基础知识和“数控编程与操作”知识，做好各项准备工作。2．完成课题各项要求。3．编写课程设计说明书，说明书参考格式：1）封面2）目录3）课程设计任务书（下发）4）课程设计课题（下发）5）课程设计说明6）课程设计小结7）课程设计参考书目4．课程设计答辩，缴课程设计说明书。五、课程设计评分标准1．工作表现30%2．说明书质量50%3．答辩情况

7、20%《数控编程与加工》课程设计课题（13）课题名称：数控铣床加工程序的编制与仿真检验。已知条件：数控铣床加工零件图。课题内容：编制内外轮廓铣和孔加工的数控加工程序单，并进行加工仿真检验。1.课程分析1.1零件图分析图1-1零件图图示零件从结构来看，该零件包括了凹台，平面，打孔等加工。凹台在零件的内表面的四边，有四个。打孔在这四个凹台上进行加工。零件中间的凸台平面是对称结构。其中多个长度以及宽度尺寸，有较严格的尺寸精度和表面粗糙度等要求，适合数控铣床铣削加工。尺寸标注完整，轮廓描述清楚。零件的材料为45刚，该材料具有较高的强度