机械5

摘要 学习机械加工和制造业是一个基础学科，机械专业在实践更为广泛。 这个设计是尾座体零件制造过程设计、和特殊零件的夹具设计。本文详细介绍了机械和过程产品的整个过程，并针对一些坡度洞钻斜孔专用夹具的设计。 并选择部分的形状进行数控加工过程分析的形状,采用数控加工一种数控编程软件的选择提高轮廓铣削,熟悉这个软件的使用,最后出口手续。 工艺设计,根据现有的条件在传统的机械加工、工艺规划制定需要根据零件的结构特点和加工性能需求,然后根据传统的实际加工方法进行制造和加工,用来更好的提高产品的质量和产品的技术性能,保证零件,但也体现了产品的零件加工特征。此外,在专用夹具的设计,采用整体混合型的连接类型,相比于传统的焊接,尽管多花一点点钱,但更加有利于更换后夹具,提高材料的利用率。 关键词:工艺设计,机械加工余量,定位方案,斜孔夹具,数控编程 Abstract Mecha
nical processi
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nical professio
nal are morewidelyi
n practice. This desig
n is the tailstock bodyparts ma
nufacturi
ng process desig
n,a
nd special fixture desig
n of the parts.This paper i
ntroduces i
n detail the process machi
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nd products of thewhole process,a
nd aims at some i
ncli
ne hole i
n drilli
ng i
ncli
ned hole special fixture desig
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nd select the shape of the part
nc machi
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ng process a
nalysiswas carried out o
n the shape,the choice of
nc machi
ni
ng MASTERCAM software is adopted to improve the co
ntour milli
ng,familiarwith the use of this software a
nd fi
nallyexport procedures. Process desig
n,accordi
ng to the existi
ng co
nditio
ns i
n the traditio
nal mecha
nical processi
ng,process pla
n
ni
ng formulatio
n
needs accordi
ng to the characteristics a
nd the structure of the parts are processed performa
nce requireme
nts,a
nd the
n accordi
ng to the realityof the co
nve
ntio
nal processi
ng route to carryo
n the processi
ng a
nd ma
nufacturi
ng,so that better product qualitya
nd tech
nical performa
nce to e
nsure that the parts,but also embodies the parts processi
ng characteristics of the product.I
n additio
n,i
n the desig
n of special fixture,the adopted overall co
n
nectio
n type of co
ncrete,comparedwith the traditio
nalweldi
ng,although the cost a bit more,but more co
nducive to fixture after replaceme
nt,repair,improve the utilizatio
n rate of the material. Keywords: process pla
n
ni
ng; Machi
ni
ng allowa
nce; Positio
ni
ng scheme; Oblique holes fixture; CNC programmi
ng 目录 摘要3 Abstract 4 1、零件的分析5 1.1.尾座体零件技术要求5 1.2.零件的材料选择5 1.3.选择毛坯的原则5 1.3.1零件毛坯的选择5 1.3.2毛坯选择的原则5 2、确定毛坯图7 2.1、确定毛坯的制造形式7 2.2、机械加工余量、工序尺寸及毛坯尺寸的确定7 2.2.1、侧面的加工余量7 2.2.2、零件中的各孔7 2.3、零件的工艺分析8 3、工艺规程设计9 3.1、定位基准的选择9 3.1.1、粗基准的选择9 3.1.2、精基准的选择9 3.2、制定工艺路线9 3.3、选择加工设备及刀、夹、量具10 3.4数控加工工艺分析10 3.5．确定切削用量及基本工时11 4、钻孔夹具设计17 4.1定位基准的选择17 4.2定位元件的设计137 4.3定位误差的分析与计算18 4.4切削力及夹紧力的计算20 4.5钻套及衬套导向件的设计21 4.6夹紧装置的设计22 4.7夹具设计及操作的简要说明23 结论24 致谢25 参考文献26