固定板零件数控加工工艺分析及编程
摘要
随着数控技术的不断发展和应用领域的扩大,数控加工技术对国计民生的一些重要行业(IT、汽车、轻工、医疗等)的发展起着越来越重要的作用,因为效率、质量是先进制造技术的主体。高速、高精加工技术可极大地提高效率,提高产品的质量和档次,缩短生产周期和提高市场竞争能力。而对于数控加工,无论是手工编程还是编程,在编程前都要对所加工的零件进行工艺分析,拟定加工方案,选择合适的刀具,确定切削用量,对一些工艺问题(如对刀点、加工路线等)也需做一些处理。并在加工过程掌握控制精度的方法,才能加工出合格的产品。
本文根据数控机床的特点,针对具体的零件,进行了工艺方案的分析,工装方案的确定,刀具和切削用量的选择,确定加工顺序和加工路线,数控加工程序编制。通过整个工艺的过程的制定,充分体现了数控设备在保证加工精度,加工效率,简化工序等方面的优势。
关键词工艺分析加工方案进给路线数控编程
Abstract
With the co
nti
nuous developme
nt of
numerical co
ntrol tech
nology a
nd applicatio
n i
n the field of expa
ndi
ng,
nc machi
ni
ng tech
nology to the
natio
nal eco
nomy a
nd people's livelihood some importa
nt i
ndustry(IT, automobile, light i
ndustry, medical, etc.) is playi
ng a more a
nd more importa
nt role i
n the developme
nt, because the efficie
ncy, quality is the mai
n part of the adva
nced ma
nufacturi
ng tech
nology. High speed, high precisio
n machi
ni
ng tech
nology ca
n greatly i
ncrease efficie
ncy, improve the quality a
nd grade of products, shorte
n productio
n cycle a
nd improve the market competitio
n ability. For the
numerical co
ntrol processi
ng,whether ma
nual programmi
ng or automatic programmi
ng, beforewill be made o
n the processi
ng of parts process a
nalysis, drafti
ng processi
ng program, select the appropriate cutti
ng tools, cutti
ng parameter is determi
ned, to some process problems(such as the cutti
ng poi
nt, processi
ng route, etc.) also
need to do some processi
ng. A
nd the master co
ntrol precisio
n i
n machi
ni
ng process. Keywords:Tech
nology a
nalysis Processi
ng scheme Feed li
ne CNC programmi
ng 目录 摘要1 第一章:绪论5 1. 1数控技术简介5 1.11数控技术发展历史5 1.12数控技术的发展趋势5 1.13数控机床的特点及工作原理6 1.2、数控加工工艺简介7 1.3、CAD/CAM技术简介7 第二章:零件图纸分析9 2.1零件分析9 2.2确定加工内容及技术要求10 第三章:固定板零件的数控加工工艺分析12 3.1零件毛坯的选择12 3.11毛坯的选择方法12 3.12毛坯的确定12 3.2基准的选择13 3.21粗基准的选择14 3.22精基准的选择14 3.23固定板零件粗基准与精基准的确定15 3.3加工方案的确定15 3.4数控机床的选择15 3.41机床的选择方法15 3.42机床的具体型号确定16 3.43加工中心的功能特点17 3.5刀具的选择17 3.6夹具选择18 3.61夹具的种类18 3.62常见的装夹方式19 3.63夹具的确定19 3.7切削用量的选择20 3.71确定背吃刀量20 3.72确定主轴转速20 3.73确定进给速度21 3.8切削用量的计算22 3.81、φ100盘刀粗铣大面22 3.82、φ100盘刀精铣大面22 3.83、φ12铣刀粗铣凸台及型腔22 3.83、φ12铣刀精铣凸台及型腔23 3.84、φ11.8钻头钻孔23 3.85、铰φ12H7mm孔23 3.9切削液的选择24 第四章:数控加工工序卡片25 4.1工艺过程卡25 4.2工序卡25 第五章:UG编程26 5.1编程概述26 5.2零件加工程序的编制26 5.21零件上表面加工26 5.22零件周边凸台及凹槽加工27 5.23零件曲面的加工28 5.24零件的2-φ11.8孔加工31 5.25零件的6-φ10H7孔加工32 5.26零件侧面直角槽的加工32 结束语34 致谢词35 参考文献36
展开...
nti
nuous developme
nt of
numerical co
ntrol tech
nology a
nd applicatio
n i
n the field of expa
ndi
ng,
nc machi
ni
ng tech
nology to the
natio
nal eco
nomy a
nd people's livelihood some importa
nt i
ndustry(IT, automobile, light i
ndustry, medical, etc.) is playi
ng a more a
nd more importa
nt role i
n the developme
nt, because the efficie
ncy, quality is the mai
n part of the adva
nced ma
nufacturi
ng tech
nology. High speed, high precisio
n machi
ni
ng tech
nology ca
n greatly i
ncrease efficie
ncy, improve the quality a
nd grade of products, shorte
n productio
n cycle a
nd improve the market competitio
n ability. For the
numerical co
ntrol processi
ng,whether ma
nual programmi
ng or automatic programmi
ng, beforewill be made o
n the processi
ng of parts process a
nalysis, drafti
ng processi
ng program, select the appropriate cutti
ng tools, cutti
ng parameter is determi
ned, to some process problems(such as the cutti
ng poi
nt, processi
ng route, etc.) also
need to do some processi
ng. A
nd the master co
ntrol precisio
n i
n machi
ni
ng process. Keywords:Tech
nology a
nalysis Processi
ng scheme Feed li
ne CNC programmi
ng 目录 摘要1 第一章:绪论5 1. 1数控技术简介5 1.11数控技术发展历史5 1.12数控技术的发展趋势5 1.13数控机床的特点及工作原理6 1.2、数控加工工艺简介7 1.3、CAD/CAM技术简介7 第二章:零件图纸分析9 2.1零件分析9 2.2确定加工内容及技术要求10 第三章:固定板零件的数控加工工艺分析12 3.1零件毛坯的选择12 3.11毛坯的选择方法12 3.12毛坯的确定12 3.2基准的选择13 3.21粗基准的选择14 3.22精基准的选择14 3.23固定板零件粗基准与精基准的确定15 3.3加工方案的确定15 3.4数控机床的选择15 3.41机床的选择方法15 3.42机床的具体型号确定16 3.43加工中心的功能特点17 3.5刀具的选择17 3.6夹具选择18 3.61夹具的种类18 3.62常见的装夹方式19 3.63夹具的确定19 3.7切削用量的选择20 3.71确定背吃刀量20 3.72确定主轴转速20 3.73确定进给速度21 3.8切削用量的计算22 3.81、φ100盘刀粗铣大面22 3.82、φ100盘刀精铣大面22 3.83、φ12铣刀粗铣凸台及型腔22 3.83、φ12铣刀精铣凸台及型腔23 3.84、φ11.8钻头钻孔23 3.85、铰φ12H7mm孔23 3.9切削液的选择24 第四章:数控加工工序卡片25 4.1工艺过程卡25 4.2工序卡25 第五章:UG编程26 5.1编程概述26 5.2零件加工程序的编制26 5.21零件上表面加工26 5.22零件周边凸台及凹槽加工27 5.23零件曲面的加工28 5.24零件的2-φ11.8孔加工31 5.25零件的6-φ10H7孔加工32 5.26零件侧面直角槽的加工32 结束语34 致谢词35 参考文献36
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