机械5

渐开线斜齿轮加工工艺及工装设计 【摘要】本设计主要内容是对渐开线斜齿轮的加工工艺路线进行设计和研究，其中包括了各道工序的加工方法以及选择合适的刀具、机床、夹具，选取基准面，定位和夹紧方案，对其中的一道工序设计专用夹具。端面、齿面和内孔为斜齿轮的主要加工表面，按照先面后孔的原则进行设计。夹具方面选取专用夹具，夹紧刚性高，合适大批量生产的情况。此次设计主要内容在于如何简化加工工序，降低加工难度，从而完成提高产品加工效率的目的。 【关键词】工艺，工序，夹具，定位，夹紧 I
nvolute helical gear process a
nd fixture desig
n 【Abstract】The mai
n co
nte
nt of this desig
n is to desig
n a
nd study the processi
ng route of the i
nvolute helical gear, i
ncludi
ng the processi
ng methods of each process a
nd selecti
ng the appropriate tool, machi
ne tool, fixture, selecti
ng the refere
nce pla
ne, positio
ni
ng a
nd clampi
ng scheme, O
ne of the process desig
n special fixtures. The e
nd face, the tooth face a
nd the i
n
ner hole are the mai
n machi
ni
ng surfaces of the helical gear, a
nd are desig
ned accordi
ng to the pri
nciple of the fro
nt face a
nd the rear hole. Special fixtures are selected for the fixtures, a
nd the clampi
ng rigidity is high,which is suitable for mass productio
n. The mai
n co
nte
nt of this desig
n is how to simplify the processi
ng process a
nd reduce the processi
ng difficulty, thus achievi
ng the purpose of improvi
ng the processi
ng efficie
ncy of the product. 【Keywords】:tech
nology, process, fixture, positio
ni
ng, clampi
ng 渐开线斜齿轮加工工艺及工装设计 目录 前言1 1零件的分析2 1.2渐开线斜齿轮的工艺要求2 1.3齿轮的工艺分析3 2工艺规程设计4 2.1选择毛坯4 2.2确定定位基准4 2.3工艺路线的拟定5 2.4机械加工余量，工序尺寸及毛坯尺寸的确定9 2.5确定切削用量及工时9 3夹具设计15 3.1专用夹具简介15 3.2问题的提出16 3.3夹具的设计16 3.4确定定位元件17 3.5夹紧装置设计18 3.6定位误差分析22 3.7夹紧误差分析23 3.8夹具设计及操作说明23 4总结24 参考文献25 致谢26