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BI 2 PHAY MT PHNG BC
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BI 2 : PHAY MT PHNG BC
PHN LOI- YU CU K THUT G T KHI PHAY MT PHNG BC CC PHNG PHP PHAY
MT PHNG BC SAI HNG KHI PHAY MT PHNG BC BI TP THC HNH
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PHN LOI V YU CU K THUT
PHN LOI MT PHNG BC Loi c mt bc Loi c nhiu bc
YU CU K THUT KHI PHAY MT PHNG BC khng song song gia cc bc Dung
sai kch thc gia cng Sai s hnh hc Sai s v tr
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G T KHI PHAY MT PHNG BC
G PHI TRN T KHI PHAY MT PHNG BC Kim tra t bng ng h so khi g phay
bc Dng can lt khi g trn t Kim tra song song khi g phi bng cch g ba
v lay nh u can lt
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CC PHNG PHP PHAY MT PHNG BC
PHAY MT PHNG BC BNG DAO PHAY TR PHAY MT PHNG BC BNG DAO PHAY MT
U PHAY MT PHNG BC BNG DAO PHAY NGN PHAY MT PHNG BC BNG DAO PHAY A
PHAY MT PHNG BC BNG T HP DAO PHAY A
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PHAY MT PHNG BC BNG DAO PHAY TR
LA CHN DAO PHAY ng knh dao tr D >2t +d +10mm Chiu rng dao B
>B' + 35 mm
d : ng knh ngoi ca khu nh v t : chiu su ca bc B' : chiu rng
bc
B'
t
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PHAY MT PHNG BC BNG DAO PHAY TR
IU CHNH MY T KCH THC iu chnh v tr dao t kch thc B bng cch theo
vch du; bng phng php r chm dao; hay bng phng php ct th ct dn tng lp
mng 12mm, nht ct tinh khong 0,5mm o v iu chnh my t chiu su t ca
bc
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TRNH T PHAY MT PHNG BC BNG DAO PHAY TR
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PHAY MT PHNG BC BNG DAO PHAY MT U
CHN DAO PHAY MT U ng knh dao phay phi ln hn b rng ca bc chiu di
dao phay phi ln hn chiu su ca bc Chn dao rng tha cho nhng vt liu c
do cao
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PHAY MT PHNG BC BNG DAO PHAY MT U
TRN MY PHAY NGANG TRN MY PHAY NG
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PHAY MT PHNG BC BNG DAO PHAY MT U
IU CHNH MY T KCH THC iu chnh v tr dao t kch thc B bng cch theo
vch du; bng phng php r chm dao; hay bng phng php ct th o v iu chnh
t chiu su t ca bc Ct dn tng lp mng 12mm, nht ct tinh khong
0,5mm
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TRNH T PHAY MT PHNG BC
G dao phay g phi ln my chn ch ct iu chnh my t chiu rng B v chiu
su nht ct t tin hnh ct tng nht , nn ct nht ct tinh t 0,5 1mm
S
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TRNH T PHAY MT PHNG BC BNG DAO MT U
G dao phay g phi ln my chn ch ct iu chnh my t chiu rng B v chiu
su nht ct t tin hnh ct tng nht , nn ct nht ct tinh t 0,5 1mm
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PHAY MT PHNG BC BNG DAO PHAY NGN
CC LOI DAO PHAY NGN- CCH G DAO Dao phay ngn chui tr Dao phay ngn
chui cn
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MT VI LOI DAO PHAY NGN CHUI TR
Dao phay ngn 2 li ct bng hp kim cng Dao phay ngn 4 li ct bng thp
gi (HSS) Dao phay ngn 5 li ct thp gi Dao phay ngn 3 li ct thp
gi
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MT VI LOI DAO PHAY NGN CHUI CN
Dao phay ph: dng khi gia cng th
Dao phay tinh dng khi gia cng tinh
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PHAY BC BNG DAO PHAY NGN TRN MY PHAY NG
DNG DAO PHAY NGN KHI PHAY CC B MT HP DAO C NG KNH LN HN B RNG
BC
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TRNH T PHAY MT PHNG BC BNG DAO PHAY NGN
iu chnh t kch thc gia cng
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LU : Chn chiu phay nghch khi phay bc
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PHAY BC BNG DAO PHAY NGN TRN MY PHAY NGANG
Dao c lp trn trc chnh my phay ngang
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PHAY MT PHNG BC BNG DAO PHAY DA
CC LOI DAO PHAY DA Dao phay da 1 mt ct Dao phay da 3 mt ct
IU CHNH DAO cho dao chm c so dao iu chnh theo kch thc h r dao
chm vo chi tit iu chnh t kch thc a
a = c + b
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K THUT R DAO
Dng bng giy mng r dao
ch : cho dao ng yn, di chuyn bn my n khi bng giy kt nh gia dao v
phi
Dng vch phn r dao
ch : cho dao quay, di chuyn bn my n khi dao ht i mt lp phn
mng
bng giy hay vt phn mng
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PHAY MT PHNG BC BNG DAO PHAY DA
DNG DAO PHAY DA KHI PHAY BC HP ( Lu chn chiu phay nghch)
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PHAY MT PHNG BC BNG T HP DAO PHAY DA
T hp dao phay da iu chnh c
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SAI HNG KHI PHAY BC
Chiu di li ct ln lm nh hng n chnh xc Sai kch thc do iu chnh sai
nhn km do dao mn, do chn lng chy dao ln, do ct dy
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BI TP THC HNH
PHAY MT PHNG BC Phi : phi bi tp 1 yu cu k thut:
nhn b mt : Rz20 dung sai kch thc : 0,1 khng song song 0.1
Rz20
=0,1
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CHUN B GIA CNG
MY: My phay ngang My phay ng
G t hm song song Can lt
DAO Dao phay ngn 16 HSS Dao phay da 100x12 HSS
DNG C O Thc cp ng h so ke
