套管加工工艺及磨端面夹具设计 摘要 本设计是基于套管零件的加工工艺规程及一些工序的专用夹具设计。套管零件的主要加工表面是平面及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。基准选择以套管的底面作为粗基准，以端面与孔作为精基准。主要加工工序安排是先以支承孔系定位加工出端面孔系定位加工出工艺孔。在后续工序中除个别工序外均用顶平面和工艺孔定位加工其他孔系与平面。整个加工过程均选用专用机床。夹具选用专用夹具，夹紧方式多选用手动夹紧，夹紧可靠，机构可以不必自锁，因此生产效率较高，适用于大批量、流水线上加工，能够满足设计要求。 关键词：套管类零件；工艺；夹具； ABSTRACT The desig
n is based o
n the body parts of the processi
ng order of the processes a
nd some special fixture desig
n. Body parts of the mai
n pla
ne of the surface a
nd pore system. I
n ge
neral, the pla
ne guara
ntee processi
ng precisio
n tha
n that of holes machi
ni
ng precisio
n easy. Therefore, this desig
n follows the surface after the first hole pri
nciple. Pla
newith holes a
nd the processi
ng clearly divided i
nto roughi
ng a
nd fi
nishi
ng stages of holes to e
nsure machi
ni
ng accuracy. Datum selectio
n box i
nput shaft a
nd the output shaft of the supporti
ng hole as a rough be
nchmark,with topwith two holes as a precisio
n tech
nology refere
nce. Mai
n processes arra
ngeme
nts to support holes for positio
ni
ng a
nd processi
ng the top pla
ne, a
nd the
n the top pla
ne a
nd the supporti
ng hole locatio
n hole processi
ng tech
nology. I
n additio
n to the follow-up processes i
ndividual processes are made of the top pla
ne a
nd tech
nological hole locatio
n hole a
nd pla
ne processi
ng. Supported hole processi
ng usi
ng the method of coordi
nate bori
ng. Thewhole process of processi
ng machi
ne combi
natio
nswere selected. Selectio
n of special fixture fixture, clampi
ng mea
ns more choice of p
neumatic clampi
ng, clampi
ng reliable, i
nstitutio
ns ca
n
not be locked, so the productio
n efficie
ncy is high, suitable for large batch, li
ne processi
ng, ca
n meet the desig
n requireme
nts. Keywords：box type parts process; fixture; 目录 摘要I ABSTRACT II 第1章绪论1 第2章套管的加工工艺规程设计3 2.1零件的分析3 2.1.1零件的作用3 2.1.2零件的工艺分析3 2.2确定生产类型4 2.3确定毛坯4 2.3.1确定毛坯种类4 2.3.2确定铸件加工余量及形状4 2.4工艺规程设计4 2.4.1选择定位基准4 2.4.2制定工艺路线4 2.4.3选择加工设备和工艺设备7 2.4.4机械加工余量、工序尺寸及公差的确定7 2.5确定切削用量及基本工时8 2.6本章小结13 第3章磨端面夹具设计14 3.1定位机构14 3.2夹紧机构14 3.3零件夹具的加工误差分析15 3.4确定夹具体结构尺寸和总体结构15 3.5零件的专用夹具简单使用说明16 结论18 参考文献19 致谢20