机械5

薄壁零件的数控工艺分析及自动编程加工 摘要 数控技术是技术性极强的工作，尤其在机械加工领域应用最为广泛，所以这要求从业人员具有很高的机械加工工艺知识，数控编程知识和数控操作技能。此次的设计任务是对零件的加工工艺设计与程序编制及加工，利用绘图软件AutoCAD将零件的二维图画出来,然后用UG软件画出三维图形,再接着设计几个方案。方案的关键在于以生成最佳的刀具路径、利用最短的时间内加工出零件,且加工工序最优,加工出来的零件的工艺符合设计图纸的要求。根据这些要求选择最佳的加工工艺方案，填写工艺卡片，工序卡片。用软件编写加工程序,并且进行仿真验证得到加工效果图。 关键词：加工工艺；编程；加工 Abstract Numerical co
ntrol tech
nology is a highly tech
nicalwork, especially i
n the field of mecha
nical processi
ng is the mostwidely used, so this requires practitio
ners to have machi
ni
ng process k
nowledge isvery high, CNC programmi
ng k
nowledge a
nd skills. The desig
n task is to the parts processi
ng process desig
n a
nd programmi
ng a
nd processi
ng, the drawi
ng software AutoCADwill be out of the picture parts i
n 2D, a
nd the
n use UG software to draw the three-dime
nsio
nal graphics, the
n several desig
n schemes. The scheme is the key to ge
nerate the tool path, the best use of the shortest processi
ng time of parts, a
nd the processi
ng procedure of optimal, processi
ng out of the parts meet the requireme
nts of desig
n drawi
ngs. Accordi
ng to the requireme
nts of processi
ng scheme of the best choice, fill i
n the process cards, process cards. Usi
ng software to program the processi
ng procedure, a
nd carries o
n the simulatio
nverificatio
n has bee
n processi
ng effect chart. Keywords: processi
ng tech
nology; programmi
ng; processi
ng 目录 摘要2 Abstract 3 目录4 第一章绪论6 第二章零件的工艺分析7 2.1零件的结构特点分析7 2.2零件的结构工艺性分析9 2.3零件的技术要求分析10 2.4确定毛坯11 2.4.1毛坯类型11 2.4.2毛坯余量确定12 2.4.3毛坯图12 第三章零件的工艺规程设计14 3.1加工顺序的安排14 3.3定位基准的选择14 3.4夹具以及装夹方式具的选择14 3.5制订工艺路线15 3.6选择刀具与切削用量17 3.6.1选择切削刀具17 3.6.2选择切削用量18 3.8数控加工工艺卡片拟订19 第四章?零件的程序编制及仿真20 4.1数控编程的定义及分类20 4.1.1数控编程的定义20 4.1.2数控编程的分类20 4.2编程原点的确定20 4.3数控加工程序代码的编写22 4.3.2自动编程22 4.3.3后处理23 4.4数控加工仿真27 总结30 参考文献31