Luận văn
Thiết kế quy trình công nghệ gia công
chi tiết: Ô đỡ trục
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
BỘ GIÁO DỤC VÀ ĐÀO TẠO CỘNG HÒA XÃ HỘI CHỦ NGHĨA VIỆT NAM

 !
"#$%&'()*+',-$./"'()
NHIỆM VỤ ĐỒ ÁN MÔN HỌC CÔNG NGHỆ CHẾ TẠO MÁY
0123NGUYỄN CHÍ TRUNG '4 3!56!7!87
-1 3$9:;<=> -2= 36!!56!?7
2@A13<:<B>CDEFD<3Ô đỡ trục
I. GHEI3
− JHK3?!!!!!<LM
− A:E<NO3P>@QR
Nội dung thiết kế :
?R CS<FD3A:EH10ET:<UT@;V=R0R0W
6R X=@OYZJVU31:G
7R $D019=DTFHKY=NA[FD
\R <CDE3]FDT9==@[TZZ==9=R
^R <:<>2DR
− 4_Z9@`=@[a:bE@O0OT:c[TYddef0O;GgThi
9A>S@Rj:;IT@NaTYZF=>2D@F
ER
− $=>T:<UYF
− CN1>=NI3$YFkHYF010HEH1YFlTF=<@e3TZTm
FHKY=NI01;FFD9NJnNIR
− ;HKYFD>2D73F>[@P
− ;=<@e>2D73F>[@PR
8R <:<@`=>2D^3FHo∅?!3

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

j=02IYq
NGUYỄN PHI TRUNG
NHẬN XÉT CỦA GIÁO VIÊN PHẢN BIỆN
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
7
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

$94r3X=@OHKYFD \?
$94rr3X=@O<@e \\
$94rrr3;=01<:<@`= \t
<H
LỜI NÓI ĐẦU
`=D$D-E$<'=>H1DF;vK=:<
]@waH2BFIDE<=>k=D$9f$D-E$<
'=>T$D-E41<*ODT$=9=jF$DTWl@S<
@K<=>xNJ@J@K=>2P0A:01;:<
^
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
ZJVUTgK0I@A:EDEET0IF019=FDG
W'G@@KUJ=@A2CFJ<:<@KB>CDEF
DKHbR
B=CE`=Z02Je0y=:<]0A=
9=DT=9=FDT@O0OT=@[T@HTW01N<=HF
F9=GTKHbUR'B>CDEKHbH1=Yd@K
yDET=>agK0I@A:EITFFDeT;
FDU<0q@JNJ@K:;I01YZF@0I>2P
:@[FTa=1z@=]@KPQFVw.
$=ZGHETDZGYFNJ[;=@AYF01=1HE01:E
QFP>IYqR
>2TB=CE@`=<<{>C$D-EYC@01M
H|A<2:DS=:}yZFZaB=C;=~
=ZGHER$•UP>DabT@S•NvZ:<]QF
C@K1E9R
[NET•Vs1J9P>NGUYỄN PHI TRUNGP>H1<
IYq•B=CE@`=1>R-ZIYqCQFP>
1•F@Ky><:€Ty<QFNJs:Dh0A:<

− OZGYZF:;I1>:D>2PFŠˆ‡‹Lk^?!lŒR$‡‹ˆ6^
3. Lỗ Φ10 vuông góc mặt đế:
 oYgHe€NHR$U;V=QFHo01[2HoH1U?6
+ =NA[HoH1‡
‹
ˆ6^k:Fl
+ =NA[QF2HoH1‡
‹
ˆ6^kF>l
+ ZF:J=6sHo•AY13^!
±
!R!^kNJ67um?!7m…7†lR
4. Đối với lỗ Φ10 + rãnh
oYgHe€NHR$U;V=QFHo01[2HoH1U?6
+ =NA[HoH1‡
‹
ˆ6^k:F„F>l
+ =NA[QF2HoH1‡
‹
ˆ6^kF>l
+ ZF:J=6sHo•AY138!
±
!R!^NJk67um?!7m…7†lR
+ ZF:J=6sHo•A36!
±
!R!\NJk67um?!7m…7†lR
III. Vật liệu:
− 4HE<s@•dZGH13jFX=?^76
− ]*3?8!W?5\
− jFV=H1K:Q><e0I$FN01a]FZG>2G:=

?
3HK<k:lR
43S;<kY
7
lR
γ3HK2QF0HE<<kFV=8Tt‘uT6lR
$γˆuR6:LY
7
R
SF4PAL$•FF•?R!F@K3
4ˆ?R!566??^R?!
^

7
ˆ!R?!566??^Y
7
>F{
?
ˆ!T?!566??^RuT6ˆ!Rut:R
II. Sản lượng hàng năm:
JHK1M;•D]3
t
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG

?
R k? l
?!!
N N m
β α

II. Phương pháp tạo phôi:
Phôi đúc:
5
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
4HEH1FV=a;@Fk;J>H}FT@UTaS@y
<]Wl@A:EZJVU1:G2@:D=Tq:HR
Tra lượng dư cho phôi đúc:
+ $<@U;V=rRk?8tm…7†lTU;V=:;Ir?^r?5
NJk7R?\m?t^m…7†l
+ =NA[@‡
‹
t!NJk7R?7m?t^m…7†lR
+ ja=:DQFPd01P@<H1?
!
!!•NJk7Rum?uum…7†lR
+ ZJVUH11:G2=ƒ\!@vR
+ ZF:;I<@kNA[:DFDlNJk7R??m?t6m…7†l

Bản vẽ khuôn đúc :
?!
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
A A
T
D
T
D
1
2

Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
1 98
10 11
3
5
2
7
6
4
12
IV.Các phương án gia công:
?7
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
Phương Án 1 Phương Án 2
Nguyên công 1: Tiện mặt 1, 3, 4
S
S
˜
)
X

˜ ˜ ))
n
X
Nguyên công 1: Tiện mặt 5, 6, 8, 2
S
S
n
˜

?\
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
Nguyên công 3: Phay mặt 10

S
n
W
˜
)
X

˜ ˜ ))
X X
Nguyên công 3: Phay mặt 10
S
n
W
˜
)
X

˜ ˜ ))
X X
Nguyên công 4: Phay mặt 11
S
n
W
˜
)

X

˜ ˜ ))
X X
?^
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
Nguyên công 6: Khoan lỗ Ø10 (8)
W
n
˜
)
X

˜ ˜ ))
X X

Nguyên công 6: : Khoan lỗ Ø10 (8)
W
n
˜
)
X

˜ ˜ ))
X X
Nguyên công 7: Phay rãnh
W
n
˜

I. Nguyên công 1 :E[?T7T\R
1. Sơ đồ gá đặt :
S
S
˜
)
X

˜ ˜
))
n
X
Các bước nguyên công :
− *I?ED[?T7TØ38@U;V=?6T‡‹ˆ\!™
− *I6E[?T7T\TØ38 @U;V=uT‡Fˆ?R8™
Định vị :
?u
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
SFD[k?lFZŽYdpDP:G<=NYZF3
− gs[7U@Os:G<^NYR
Phương án kẹp chặt :
's[:c[R
Sai số chuẩn:
ε


ε

ˆ!kp@O0OgG:;IlR

=
×
×
=
D
V
n
π
k0|Ll
•''3ˆ^!70L
?t
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
4G<34ˆ
?u7
?!!!
^!7R??!R
?!!!
RR
==
π
π
may
nD
kLl
+ Tiện Ø38.
$AZse3ˆ?R5R
K>YFˆ!R?6!R?8L0RkNJ^8?m^6m…\†R•><=>3

Y

kLl
+ Tiện mặt 3.
$AZse3ˆ?R
K>YFˆ!R?6!R?8L0RkNJ^8?m^6m…\†R•><=>3

Y
ˆ!R?^L0
G@e30ˆ?uukLlk*J^8^m^um…\†l
G0|BF>3
?\!5
\!?\R7
?uu?!!!?!!!
=
×
×
=
×
×
=
D
V
n
π
k0|Ll
•''3ˆ?7t!0L
4G<34ˆ
?u7
?!!!
?7t!R\!R
?!!!

•''3ˆ?7t!0L
?5
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
4G<34ˆ
?5?
?!!!
?7t!R\\R
?!!!
RR
==
π
π
may
nD
kLl
4.2 Tiện tinh:
+ Tiện mặt 1.
$AZse3ˆ!R?R
K>YFˆ!R?^!R6^L0RkNJ^8!m^6m…\†R•><=>3

Y
ˆ!R66L0
G@e30ˆ7?\kLlk*J^8^m^um…\†l
G0|BF>3
5!5
??!?\R7
7?\?!!!?!!!
=
×

G0|BF>3
?\t7
7t?\R7
?uu?!!!?!!!
=
×
×
=
×
×
=
D
V
n
π
k0|Ll
•''3ˆ?7t!0L
4G<34ˆ
?8^
?!!!
?7t!R7tR
?!!!
RR
==
π
π
may
nD
kLl
+ Tiện mặt 3.

?!!!
RR
==
π
π
may
nD
kLl
5.Thời gian nguyên công:
5.1.Tiện thô:
i
nS
LLL
T R
R
6?
!
++
=
kl
@a33AY1NA[FDklR

?
3AY1MYFklR

6
3AY1=YFklR
3HK>YF0|kL0|lR
3ZG0|BF>[1C:€
3ZGHPe?>2D

LLL
t
?R!
?7t!?^R!
7?u
R
R
?
!7
=
+
=
+
=
xnS
LL
t

?R!
?7t!?^R!
76
R
R
?
!\
=
+
=
+
=


3FdT;P@ˆ?!Œ!

0
3Fd0d`Fd0d:
k
0:
ˆtŒ
!
l01Fd0dv]k
0
ˆ7Œ
!
l


3F–92QFDsk

ˆ^Œ
!
l
!!!!!
Œ^Œ7ŒtŒ?! TTTTTT
TC
++++=
u!^8T!^8T!ŒR^^8T!ŒR7^8T!ŒRt^8R!ŒR?!^8T! =++++=
TC
T

5.2 Tiện tinh:

R
R
6?
!6
=
++
=
++
=
xnS
LLL
t

?R!
?7t!?^R!
7?u
R
R
?
!7
=
+
=
+
=
xnS
LL
t

!

?R S
ơ
đồ
gá
đặt :
S
S
n
˜
)
X

W
˜ ˜ ))
X
W
Các bước nguyên công :
− *I?ED[6T^T8Tu@U;V=?6T‡‹ˆ\!™
− *I6E[6T^@U;V=uT‡Fˆ?R8™
Định vị :
SFD[k^lFZŽYdp;P:G<=NYZF3
− g@`=N:G<^NYR
Phương án kẹp chặt :
`=N0nF@O0O0nF:c[R
Sai số chuẩn:
ε


ε


- —7t
'[7
!R?
!R?
!R?
!R66
!R?^
!R?^
77?
?8^
?u7
5^t
?7t!
?7t!
!T8\68
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
$AFskl ?8!
J=yF6skl u^!
:;d;kl 7^
$DZG ^
G0|BF>d;k0Ll
\\885??6!?u76\!7^!^!7u67
5^t?7t!?5t!R
$DZU@9k:šl \R^
3.Chọn dụng cụ cắt:
FE1eJK:]*tkNJ\8m65um…7†l
FEweJK:]*tkNJ\tm65tm…7†l
FEHoeJK:]*tkNJ\?\m7!6m…7†l
4.1 Tiện thô:
+ Tiện mặt 2.

π
may
nD
kLl
+ Tiện mặt 5.
$AZse3ˆ!R5R
K>YFˆ!R?6!R?8L0RkNJ^8?m^6m…\†R•><=>3

Y
ˆ!R?^L0
G@e30ˆ?uukLlk*J^8^m^um…\†l
G0|BF>3
?\!5
\!?\R7
?uu?!!!?!!!
=
×
×
=
×
×
=
D
V
n
π
k0|Ll
•''3ˆ?7t!0L
6\
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063

=
D
V
n
π
k0|Ll
•''3ˆ?7t!0L
4G<34ˆ
?5?
?!!!
?7t!R\\R
?!!!
RR
==
π
π
may
nD
kLl
+ Tiện mặt 7.
$AZse3ˆ?R
K>YFˆ!R8!R5L0RkNJ^8!m^6m…\†R•><=>3
Y
ˆ!R8?L0
G@e30ˆ?5^kLlk*J^8^m^um…\†l
G0|BF>3
?!7^
8!?\R7
?5^?!!!?!!!
=

ˆ!R66L0
G@e30ˆ7?\kLlk*J^8^m^um…\†l
6^
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063