机械5

摘要 本次设计的是主动齿轮轴的加工工艺及铣削加工键槽的夹具设计，主要采用铣床铣削加工来的完成工艺加工。在数控加工中利用数控机床来加工，使得产品加工的质量能够保持一致性，保证主动齿轮轴零件的加工精度和主动齿轮轴零件效率，在这些方面均比普通铣床加工高出很多有点，尤其是针对一些轮廓轮廓不规则的零件的加工、在零件上有复杂的曲线或不规则的曲面、需要要到多工艺复合，工序加工和零件的高精度要求的产品零件的加工时，最突出的优点是传统机床，在加工的时候所无法比达到这一的要求。 本文通过主动齿轮轴零件的分析，主动齿轮轴零件的结构特点和主动齿轮轴零件加工技术图纸要求，完成设计制定了一套较合理的主动齿轮轴零件铣槽夹具设计，从而为保证主动齿轮轴零件加工精度要求，将提供一种主动齿轮轴零件经济实用的工艺加工装备设计，使得主动齿轮轴零件的加工具有一定的实用高效率的生产价值。 关键词：齿轮轴、夹具、工艺、铣削 Abstract This desig
n is the processi
ng tech
nology of the drivi
ng gear shaft a
nd the fixture desig
n for milli
ng the keyway, mai
nly usi
ng the milli
ng machi
ne to complete the processi
ng. I
n NC machi
ni
ng, the use of CNC machi
ne tools to process, so that the quality of product processi
ng ca
n mai
ntai
n co
nsiste
ncy, e
nsure the processi
ng accuracy of the drivi
ng gear shaft parts a
nd the efficie
ncy of the drivi
ng gear shaft parts, i
n these aspects are higher tha
n the ordi
nary milli
ng machi
ne processi
ng, especially for some partswith irregular co
ntour co
ntour, there are complex curves or irregular curved surfaces o
n the parts The most outsta
ndi
ng adva
ntage of the traditio
nal machi
ne tool is that it ca
n
not meet the requireme
nts of multi process combi
natio
n, process processi
ng a
nd high-precisio
n parts. I
n this paper, through the a
nalysis of the drivi
ng gear shaft parts, the structural characteristics of the drivi
ng gear shaft parts a
nd the processi
ng tech
nology drawi
ng requireme
nts of the drivi
ng gear shaft parts, the desig
n is completed, a
nd a set of reaso
nable groove milli
ng fixture desig
n for the drivi
ng gear shaft parts is formulated. Thus, i
n order to e
nsure the machi
ni
ng accuracy requireme
nts of the drivi
ng gear shaft parts, a
n eco
nomic a
nd practical process equipme
nt desig
n for the drivi
ng gear shaft partswill be provided, The machi
ni
ng of the drivi
ng gear shaft parts has a certai
n practical a
nd efficie
nt productio
nvalue. Keywords: gear shaft, fixture, process, milli
ng 目录 1零件的分析1 1.1零件的作用1 1.2零件的工艺分析1 1.3工艺设计的要求3 2主动齿轮轴的工艺规程设计5 2.1确定生产类型5 2.2选择定位基准7 2.2.1粗基准的选择8 2.2.2精基准的选择8 2.3制定工艺路线8 2.4选择加工设备和工艺装备10 2.5机械加工余量、工序尺寸及毛坯尺寸的确定11 3切削用量及工时的计算13 3.1车削加工工时定额13 3.2铣削加工工时定额的计算15 1.选择刀具15 2.决定铣削用量15 3.3钻销加工工时定额计算16 4铣削专用夹具设计18 4.1问题的提出18 4.2夹具的误差分析19 4.3、夹具总体设计21 总结25 参考文献26