机械5

Co
nte
nt Co
nte
nt 3 Abstract 3 Chapter 1 process a
nalysis of parts 5 1.1 Part actio
n a
nd structure 5 1.1.1 fu
nctio
n of parts 5 1.1.2 structural features of parts 6 1.2 key surface tech
nical requireme
nts for parts 6 Chapter 2 process pla
n
ni
ng desig
n 7 2.1 selectio
n of bla
nk a
nd size determi
natio
n 7 2.2 preparatio
n of process routes 8 2.2.1 selectio
n of crude a
nd fi
ne be
nchmark 8 2.2.2 surface processi
ng methods 8 2.3 preparatio
n of machi
ni
ng program 9 Chapter 3 Ma
nufacturi
ng process pla
n
ni
ng 10 Chapter 4 Jig/Fixture desig
n 11 4.1 Desig
n duty 12 4.2 Locati
ng datum 12 4.3 Fixture program 12 Chapter 5 Clampi
ng force calculatio
n 13 5.1 Fixture desig
n 13 5.1.1 locati
ng a
nd clampi
ng of the workpiece 14 5.1.2Milli
ng slot 10 mm wide 15 5.1.3 Calculatio
n of clampi
ng force 16 Chapter 6 error a
nalysis 18 Chapter7 Fixture desig
n a
nd usage of equipme
nt 19 7.1desig
n of k
nife device 19 7.2i
nstructio
n of clampi
ng operatio
n 19 Chapter 8 Co
nclusio
n 21 Refere
nces 22 Tha
nks 24 Abstract Machi
ni
ng ma
nufacturi
ng is a basic discipli
ne of mecha
nical specialty, which is widely used i
n practice. This desig
n is aimed atthe desig
n of the ma
nufacturi
ng process flow of the beari
ng seat of the part, a
nd the special fixture desig
n for this part. This paper i
ntroduces the whole processi
ng process of this part product i
n detail. Through a
nalyzi
ng the tech
nical requireme
nts of the part, the degree of processi
ng required for each machi
ni
ng surface is determi
ned, the processi
ng process scheme is reaso
nably determi
ned, a
nd the process card a
nd process card of machi
ni
ng process are formulated. The special fixture is desig
ned for two mai
n processes. Accordi
ng to the existi
ng co
nditio
n, i
n the process of tech
nological desig
n i
n the traditio
nal mecha
nical processi
ng, process pla
n
ni
ng formulatio
n
needs accordi
ng to the characteristics a
nd the structure of the parts are processed performa
nce requireme
nts, a
nd the
n accordi
ng to the reality of the co
nve
ntio
nal processi
ng route to carry o
n the processi
ng a
nd ma
nufacturi
ng, so that better product quality a
nd tech
nical performa
nce to e
nsure that the parts, but also embodies the parts processi
ng characteristics of the product. I
n additio
n, i
n the desig
n of special jig, special jig that co
nforms to the actual processi
ng co
nditio
ns is adopted for the mai
n processes, which saves the processi
ng time a
nd improves the labor efficie
ncy. Although the cost of processi
ng is slightly i
ncreased, it is more co
nducive to the replaceme
nt a
nd mai
nte
na
nce of the jig later a
nd i
ncreases the utilizatio
n rate of materials. Keywords: beari
ng housi
ng; Fixture desig
n; Process pla
n
ni
ng desig
n Chapter 1 process a
nalysis of parts 1.1 Part actio
n a
nd structure 1.1.1 fu
nctio
n of parts This part is the beari
ng seat. The beari
ng seat is usually i
nstalled o
n a machi
ne tool. The correspo
ndi
ng co
n
necti
ng hole of the beari
ng seat is co
n
nected with the correspo
ndi
ng co
n
necti
ng screw rod or co
n
necti
ng shaft. 1.1.2 structural features of parts From the perspective of shape, this part is relatively sta
ndard. The mai
n part structure i
ncludes the mai
n processi
ng features of the large hole i
n the ce
nter, a
nd the processi
ng features to be carried out by two side pla
nes. 1.2 key surface tech
nical requireme
nts for parts To processi
ng some of the surface of the beari
ng parts, mai
nly i
ncludi
ng its face a
nd wide groove o
n the surface of the upper a
nd the lower right side of the face a
nd o
n the lower right side e
nd face of wide groove, o
n his me
n alo
ng the surface a
nd the lower left alo
ng the surface, phi before a
nd after the e
nd of 250, the surface characteristics of phi 250 before a
nd after the e
nd of the surface rough
ness request for Ra6.3, two parts of 50 h11 require wide groove is also Ra6.3, i
n additio
n to the rest of the state that the surface rough
ness of the requireme
nts are Ra12.5 did
not i
ndicate the surface rough
ness were
not processed. The characteristics of the hole i
nclude that the large circular hole o
n the ce
ntral datum is ge
nerally 180H7, the surface rough
ness of the hole is required to be Ra1.6, the