摘要 本次设计是进行专用夹具的设计，需要自己独立完成加工工艺设计以及专用夹具的设计。本次研究的对象是左手凸轮，在对工件的组成表面，加工要求等进行分析后，确定了工件的加工方法以及加工顺序，安排了加工工艺路线，确定了零件的加工余量，绘制了毛坯图，还对零件的生产类型、零件的加工装备、加工时间等等进行了计算和确定。 专用夹具的设计其加工的工序是铣2处凸轮槽，使用的机床是XK5032，使用的铣刀是立铣刀。对定位元件和夹紧的元件进行了选择，对定位和夹紧的方案进行了设计等。最后，还设计了夹具体，对刀装置等等，完成夹具装配图及所有非标零件图的绘制等等。 关键词：专用夹具、加工工艺、左手凸轮、铣2处凸轮槽 Abstract This graduatio
n project is desig
ned for special fixtures, a
nd it is
necessary to i
ndepe
nde
ntly complete the desig
n of the machi
ni
ng process a
nd the desig
n of the special fixture. The object of this study is the left-ha
nd cam. After a
nalyzi
ng the compositio
n surface a
nd processi
ng requireme
nts of theworkpiece, the machi
ni
ng method a
nd processi
ng seque
nce of theworkpiece are determi
ned, the machi
ni
ng route is arra
nged, the machi
ni
ng allowa
nce of the part is determi
ned, a
nd the bla
nk is draw
n. The figure also calculates a
nd determi
nes the type of productio
n of the part, the processi
ng equipme
nt of the part, the processi
ng time, a
nd so o
n. The desig
n of the special fixture is to machi
ne the 2 cam grooves, the machi
ne tool used is XK5032, a
nd the milli
ng cutter used is the e
nd mill. The positio
ni
ng eleme
nt a
nd the clamped eleme
ntwere selected, a
nd the positio
ni
ng a
nd clampi
ng schemewas desig
ned. Fi
nally, the clip specific, the tool setti
ng device, etc. are also desig
ned, a
nd the fixture assembly drawi
ng a
nd drawi
ng of all
no
n-sta
ndard parts drawi
ngs are completed. Keywords: special fixture, machi
ni
ng process, left ha
nd cam, milli
ng 2 cam groove 目录 摘要I Abstract II 第一章前言1 1.1专用夹具定位机构和夹紧机构的概述1 1.1.1定位机构的概述1 1.1.2夹紧机构的概述1 1.2机床夹具的总体布局2 1.3专用夹具装配图及零件图绘制要求2 1.3.1专用夹具装配图的绘制要求2 1.3.2专用夹具零件图的绘制要求3 第二章设计零件加工工艺规程4 2.1零件的作用4 2.2零件组成表面、加工要求及形位公差分析4 2.2.1零件组成表面分析4 2.2.2零件加工要求分析4 2.2.3零件形位公差分析5 2.3零件材料的选择和分析5 2.4确定零件生产类型6 2.5确定零件制造形式6 2.6零件加工基准的选择6 2.6.1粗基准的选择6 2.6.2精基准的选择7 2.7确定加工工艺路线8 2.8确定机床、夹具、刀具及量具9 2.9确定机加工余量9 2.10确定切削用量及工时11 第三章设计专用夹具25 3.1确定定位方案25 3.2确定定位元件25 3.3确定夹紧方案25 3.4确定夹紧元件26 3.5设计夹具体26 3.6计算铣削力、夹紧力26 3.6.1计算铣削力26 3.6.2计算夹紧力27 3.7分析夹具精度27 结论28 致谢29 参考文献30