机械5

异形底座零件数控加工工艺分析与编程 摘要 数字控制技术是数字控制技术的缩写。使用数字控制技术可以在生产过程中用语言来描述程序，将数字形式的程序以数字形式输入计算机或专用数字计算设备进行处理输出，并控制生产过程对应实现过程，使生产过程可以在没有干预的情况下自动化，实现生产过程的自动化。 CNC编程分为手动编程和自动编程。手动编程意味着手动完成编程的各个阶段。对于复杂零件的几何形状需要使用计算机使用指定的NC语言部分准备源程序，处理后生成处理程序，称为自动编程。 平面类零件是加工中经常遇到的典型零件，在加工平面类零件时要选择机床、夹具、刀具及量具，还要合理选择机床转速、进给率及切削用量并分析加工工艺。正确的程序，将确保工件的平滑加工，使用CNC铣削加工中心对材料进行铣削，使毛坯材料达到图纸的要求。本文介绍了异形底座零件从毛坯到成品的加工过程。对零件的结构进行了分析，制定了零件的加工工艺内容。选择了零件毛坯和设备，确定了夹具，对零件的加工工艺方案、切削用量的选择、程序编制等进行了具体的分析。 关键词:数数控技术，加工工艺，铣削加工 Abstract Digital co
ntrol tech
nology is the abbreviatio
n of digital co
ntrol tech
nology. Digital co
ntrol tech
nology ca
n be used i
n the productio
n process to describe the program i
n la
nguage, the digital form of the program i
n the form of digital i
nput computer or special digital computi
ng equipme
nt for processi
ng a
nd output, a
nd co
ntrol the productio
n process correspo
ndi
ng to the impleme
ntatio
n process, so that the productio
n process ca
n be automatedwithout i
nterfere
nce, the realizatio
n of productio
n process. Automatio
n. CNC programmi
ng is divided i
nto ma
nual programmi
ng a
nd automatic programmi
ng. Ma
nual programmi
ng mea
ns thevarious stages of programmi
ng ma
nually. For the geometric shape of complex parts, the computer
needs to use the specified NC la
nguage to prepare the source program. After processi
ng, the program is ge
nerated,which is called automatic programmi
ng. Pla
ne parts are ofte
n e
ncou
ntered i
n the processi
ng of typical parts, i
n the processi
ng of pla
nar parts to choose machi
ne tools, fixtures, tools a
nd measuri
ng tools, but also a reaso
nable choice of machi
ne speed, feed rate a
nd cutti
ng parameters a
nd a
nalysis of processi
ng tech
nology. Correct procedureswill e
nsure smooth processi
ng of theworkpiece, usi
ng CNC milli
ng machi
ni
ng ce
nter for material milli
ng, so that the bla
nk material to meet the requireme
nts of the drawi
ngs. This paper i
ntroduces the processi
ng of special-shaped base parts from rough to fi
nished products. The structure of the parts is a
nalyzed, a
nd the processi
ng co
nte
nts of the parts areworked out. The bla
nk a
nd equipme
nt of the parts are selected, the fixture is determi
ned, a
nd the machi
ni
ng process scheme, the selectio
n of cutti
ng parameters a
nd the programmi
ng of the parts are a
nalyzed i
n detail. Keywords:
numerical co
ntrol tech
nology, machi
ni
ng tech
nology, milli
ng process 目录 摘要1 Abstract 2 前言5 第一章绪论6 1.1数控机床的发展及其重要性6 1.2数控机床的组成及分类6 1.3数控机床的特点7 1.4本课题主要研究的内容8 第二章异形底座零件实体建模9 2.1概述9 2.2异形底座零件的创建10 第三章异形底座零件工艺分析14 3.1异形底座零件分析14 3.2异形底座零件加工工艺分析15 3.2.1数控机床的选择15 3.2.2异形底座毛坯确定16 3.2.3异形底座刀具选择16 3.2.4异形底座切削用量选择17 3.2.5异形底座夹具及定位20 3.2.6制定工艺规程卡20 第四章UG自动编程及后置处理21 4.1异形底座零件正面编程21 4.1.1确定加工坐标系21 4.1.2设置刀具类型及参数21 4.1.3几何体设置22 4.1.4轮廓加工设置23 4.1.5精加工设置25 4.16仿真验证27 4.2后置处理28 第五章小结42 参考文献43