套筒零件加工工艺及夹具设计
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自动编程,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夹具
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:概述5 1.1零件图5 1.2零件结构工艺分析6 1.3数控加工内容要求7 第二章:零件加工工艺方案8 2.1毛坯选择8 2.2定位基准的选择8 2.3装夹方案9 2.3.1夹具选择9 2.3.2装夹方案的确定10 2.4加工顺序的安排11 2.5加工方案11 第三章:切削液的选择12 第四章:确定切削用量及基本工时13 4.1粗车左端13 4.11加工条件13 4.12计算铣削用量13 4.13计算工时13 4.2粗车右端13 4.21加工条件13 4.22计算铣削用量14 4.23计算工时14 4.3精车右端14 4.31加工条件: 14 4.32计算铣削用量14 4.33计算工时15 4.4精车左端15 4.41加工条件: 15 4.42计算铣削用量15 4.43计算工时15 4.5钻4-Φ4.5mm孔16 4.51加工条件16 4.52计算切削用量16 4.53计算工时17 4.6铣缺口17 4.61加工条件17 4.62计算铣削用量17 4.63计算工时17 4.7磨内孔18 4.71加工条件18 4.72切削用量的选择18 4.73计算工时18 4.8磨外圆19 4.81加工条件19 4.82切削用量的选择19 4.83切削工时19 第五章专用夹具的设计20 5.1铣缺口夹具20 5.2问题的提出20 5.3定位基准的选择20 5.4切削力和夹紧力的计算20 5.5定位误差分析20 5.6夹具设计及操作的简要说明21 结束语22 致谢词23 参考文献24
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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:概述5 1.1零件图5 1.2零件结构工艺分析6 1.3数控加工内容要求7 第二章:零件加工工艺方案8 2.1毛坯选择8 2.2定位基准的选择8 2.3装夹方案9 2.3.1夹具选择9 2.3.2装夹方案的确定10 2.4加工顺序的安排11 2.5加工方案11 第三章:切削液的选择12 第四章:确定切削用量及基本工时13 4.1粗车左端13 4.11加工条件13 4.12计算铣削用量13 4.13计算工时13 4.2粗车右端13 4.21加工条件13 4.22计算铣削用量14 4.23计算工时14 4.3精车右端14 4.31加工条件: 14 4.32计算铣削用量14 4.33计算工时15 4.4精车左端15 4.41加工条件: 15 4.42计算铣削用量15 4.43计算工时15 4.5钻4-Φ4.5mm孔16 4.51加工条件16 4.52计算切削用量16 4.53计算工时17 4.6铣缺口17 4.61加工条件17 4.62计算铣削用量17 4.63计算工时17 4.7磨内孔18 4.71加工条件18 4.72切削用量的选择18 4.73计算工时18 4.8磨外圆19 4.81加工条件19 4.82切削用量的选择19 4.83切削工时19 第五章专用夹具的设计20 5.1铣缺口夹具20 5.2问题的提出20 5.3定位基准的选择20 5.4切削力和夹紧力的计算20 5.5定位误差分析20 5.6夹具设计及操作的简要说明21 结束语22 致谢词23 参考文献24
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