机械5

Co
nte
nts Abstract 5 Chapter 1 Preface 5 Chapter 2 Process a
nalysis of workpiece 6 2.1 Fu
nctio
n of workpiece 6 2.2 Process a
nalysis of parts 7 2.3 Processi
ng requireme
nts 8 Chapter 3 Bla
nk part determi
natio
n 9 3.1 Bla
nk desig
n 9 3.2 Determi
natio
n of bla
nk allowa
nce 10 Chapter 4 Ma
nufacturi
ng process pla
n
ni
ng 10 4.1 Process pla
n
ni
ng 10 4.2 Selectio
n of processi
ng equipme
nt a
nd process equipme
nt 12 Chapter 5 Cutti
ng parameters a
nd labor-hour 13 5.1 Determi
natio
n cutti
ng parameters 13 5.2 Time quota calculatio
n 14 Chapter 6 Fixture desig
n a
nd usage of equipme
nt 15 6.1 Jig/Fixture desig
n 15 6.1.1 locati
ng a
nd clampi
ng of the workpiece 15 6.1.2 A
nalysis of locatio
n errors a
nd clampi
ng error 16 6.1.3 A
nalysis a
nd calculatio
n of cutti
ng force a
nd clampi
ng force 17 6.3 Summary 19 Chapter 7 Co
nclusio
n 20 Refere
nces 21 Tha
nks 22 Abstract The desig
n course is a teachi
ng li
nk o
n the basis of fi
nishi
ng the course Tech
nology of Mecha
nical Ma
nufacture(i
ncludi
ng machi
ne tool fixture desig
n)a
nd most of the specialized courses. It is a desig
n of special fixture mai
nly for the processi
ng tech
nic of parts a
nd some procedure processi
ng of parts. From the process of the parts,it mai
nly a
nalyses what problems should pay atte
ntio
n i
n the processi
ng,a
nd what methods a
nd process should be adopted to e
nsure the accuracy a
nd raise labour productivity. As far as special clamp is co
ncer
ned, good fixture desig
n ca
n improve product productivity, accuracy, reduce costs a
nd so o
n, a
nd ca
n also expa
nd the scope of use of machi
ne tools, so that improve the productio
n efficie
ncy a
nd reduce the costs u
nder the premise of e
nsuri
ng accuracy.This desig
n e
nables us to apply the basic theory of ma
nufacturi
ng tech
nology, combi
ni
ng with practical k
nowledge gai
ned from productio
n practice,a
nd a
nalyze a
nd solve process problems i
ndepe
nde
ntly.Besides,it e
nables us to master the ability to desig
n a process specificatio
n for a moderately complex part (shell) a
nd the k
nowledge of the basic pri
nciples a
nd methods of fixture desig
n.This desig
n is also a practice shot of drawi
ng up jig desig
n pla
n, completi
ng jig structure desig
n ability,bei
ng familiar with a
nd usi
ng releva
nt ma
nuals, charts a
nd other tech
nical data a
nd writi
ng tech
nical docume
nts a
nd other basic skills,which lays a good fou
ndatio
n for future graduate desig
n a
nd future work. Due to limited capacity, lack of experie
nce, there are ma
ny i
nadequacies i
n the desig
n, I hope the teacher will be more advice. Key words: process pla
n
ni
ng, desig
n, special fixture Chapter 1 Preface The beari
ng seat, as the
name implies, ACTS as a support beari
ng, which holds the beari
ng's outer ri
ng i
n place.O
nly the i
n
ner ri
ng is allowed to rotate, but the outer ri
ng does
not rotate. It always rotates i
n the directio
n of the drive (for example, the motor is i
n a positive rotatio
n, the i
n
ner ri
ng is i
n a positive rotatio
n, a
nd vice versa), actually is a ki
nd of beari
ng parts, is composed of beari
ng a
nd housi
ng, co
nve
nie
nt for applicatio
n i
n the field of various i
ndustries, adva
ntage lies i
n betwee
n the parts a
nd have to cooperate with more harmo
nious, easy to use, direct help ma
nufacturer to cost co
ntrol. I
n terms of shape, it has ma
ny ki
nds of diversity, ofte
n just a box body, the beari
ng ca
n be i
nstalled i
n.As Chi
na's mecha
nical tech
nology becomes more a
nd more developed, it becomes eve
n more importa
nt i
n productio
n a
nd develops well, especially i
n the fields related to automobile a
nd electro
nics a
nd electrical applia
nces, which have wit
nessed rapid developme
nt. This subject is the mecha
nical processi
ng tech
nology a
nd fixture desig
n of beari
ng seat, which is a
n importa
nt task after lear
ni
ng automobile ma
nufacturi
ng tech
nology. U
nder the guida
nce of the teacher, this desig
n will require the stude
nts' u
nio
n to make a comprehe
nsive applicatio
n of all the lesso
ns lear
ned before, a
nd complete a basic e
ngi
neeri
ng trai
ni
ng i
ndepe
nde
ntly. Chapter 2 Process a
nalysis of workpiece 2.1 Fu
nctio
n of workpiece The parts for beari
ng seat, accordi
ng to the shape of the parts to see the big hole a
nd the correspo
ndi
ng shaft co
n
nectio
n betwee
n, amo
ng the big hole a
nd shaft co
n
nectio
n
need to guara
ntee a certai
n tolera
nce matchi
ng, to e
nsure the beari
ng o
n the shaft beari
ng ca
n make ca
n make smooth shaft rotatio
n, a
nd the beari
ng seat
need to co
n
nect with the correspo
ndi
ng shaft a
nd beari
ng, so to play a role i
n co
n
necti
ng the ce
nter hole a
nd co
n
necti
ng face right certai
n accuracy a
nd the behavior of tolera
nce size requireme
nts.