机械5

NBSJ-089支座加工工艺编制及加工3-12.5mm槽的铣床专用夹具设计 摘要 这次设计的主要内容是NBSJ-089支座加工工艺编制及加工3-12.5mm槽的铣床专用夹具设计，通过对任务书的解读，内容有加工工艺规程，专用铣床夹具。在掌握零件作用以及对其进行分析的基础上，完成了这2点设计内容。 设计之初通过资料的查阅了解和掌握机床夹具的相关知识，为后面的设计和计算提供保障。说明书里面的知识点主要有对机床夹具进行设计、公差等。首先搞清楚这个加工的零部件，然后对它进行了分析，这样就可以在加工的时候精确度更高，将零件的标准定下来，之后在算一下每一个步骤的切削用量的大校在这还要特别关注的是，在对零部件进行定位的时候，必然会有偏差出现，这个偏差一定要在规定的范围里面，这样才可以对这个夹具的好处，坏处进行了解，对它进行改善。 通过上面的设计、分析和计算，圆满的完成了本次设计的所有任务，在巩固之前所学知识的同时，还为今后的学习夯实基矗 关键词：NBSJ-089支座、加工工艺，3-12.5mm槽、夹具设计 Abstract The desig
n of the mai
n co
nte
nt is NBSJ-089 support processi
ng tech
nology preparatio
n a
nd processi
ng 3-12.5mm slot milli
ng machi
ne special fixture desig
n, through the task book i
nterpretatio
n, co
nte
nt processi
ng process, special milli
ng machi
ne fixture. O
n the basis of masteri
ng the fu
nctio
n of parts a
nd a
nalyzi
ng them, the 2 desig
n co
nte
nts are completed. At the begi
n
ni
ng of the desig
n, through the data access, u
ndersta
nd a
nd grasp the releva
nt k
nowledge of machi
ne tool fixture, for the desig
n a
nd calculatio
n to provide protectio
n. I
nstructio
ns i
nside the mai
n k
nowledge of the machi
ne tool fixture desig
n, tolera
nces a
nd so o
n. First make clear of the processi
ng parts, a
nd the
n a
nalyzes it, so that it ca
n be precisio
n i
n the processi
ng time is higher, the sta
ndard partswill settle dow
n, after the cou
nt of cutti
ng each step size. This also is of particular co
ncer
n, i
n the positio
ni
ng of the parts, there must be a deviatio
n, the deviatio
n must be i
n the specified ra
nge, so that it ca
n be o
n the fixture of the be
nefits, disadva
ntages of u
ndersta
ndi
ng, to improve it. Through the above desig
n, a
nalysis a
nd calculatio
n, successfully completed all the tasks of the graduatio
n project, i
n the co
nsolidatio
n of k
nowledge before, at the same time, but also for the future study of solid fou
ndatio
n. Keywords: NBSJ-089 support, processi
ng tech
nology, 3-12.5mm groove, fixture desig
n 目录 摘要I Abstract II 第1章引言- 1- 第2章计算生产纲领、生产效率分析- 2- 2.1生产纲领- 2- 2.2生产效率分析- 2- 第3章零件的分析- 3- 3.1零件的分析- 3- 3.2零件的作用- 3- 3.3零件的工艺分析- 4- 第4章工艺规程设计- 4- 4.1确定毛坯的制造形式- 4- 4.2基面的选择- 5- 4.2.1粗基准的选择原则- 5- 4.2.2精基准选择的原则- 6- 4.3制订工艺路线- 6- 4.4机械基本工时确立- 7- 第5章铣床夹具设计- 24- 5.1专用夹具的提出- 24- 5.2定位元件及夹紧元件的选择- 24- 5.3切削力和夹紧力的计算- 24- 5.4定位误差分析- 25- 5.5夹具设计及操作简要说明- 26- 结论- 27- 致谢- 28- 参考文献- 29-