Luận văn Thiết kế quy trình công nghệ gia công chi tiết: Ổ đỡ trục ppt

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
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 !
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NHIỆM VỤ ĐỒ ÁN MÔN HỌC CÔNG NGHỆ CHẾ TẠO MÁY
0123NGUYỄN CHÍ TRUNG '4 3!56!7!87
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− JHK3?!!!!!<LM
− A:E<NO3P>@QR
Nội dung thiết kế :
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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
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− $=>T:<UYF
− CN1>=NI3$YFkHYF010HEH1YFlTF=<@e3TZTm
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− ;Z]NA=<OHR
II. $=NJ0_3
− *J0_<3 ?NJ#7R
− *J0_<H`D3 ?NJ#7R
− NJ0_Z9@`>2D3 \NJ#7R
− *J0_<:<@`=3k0_NCl ?NJ#?R
III. -1>FE0d3
IV. -1>11E0d3
V. j=02IYq3NGUYỄN PHI TRUNG
j=42Iq
b2

6
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
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NGUYỄN PHI TRUNG
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7
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
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Z02H1••aF@CNaP>R
02E
CHƯƠNG I. PHÂN TÍCH CHI TIẾT GIA CÔNG
I. Chức năng :
$<s@•dH1<[=EG9:;R
$<Yv@•da]MvN@S@O0O[y[
=dR
8
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
− j`3Ho‚\!HevNR
− 2@<aHoƒ?!@SG@Ov@•R
II. Yêu cầu kỹ thuật :
1. Đối với lỗ Ф40: H1NA[H10E;QF2R
− )2P3oJ@OsGR
− oaU;V=:;IH1UuR
− ;IHoH1ƒ\!
„!T!6^
kNJ6tm8?m…7†lR
•kNJ6R77m58m…7†lFaU;V=:;IH1UuFF@KU;
V=0ACY=kU@=lH1UuR>F3
+ =NA[HoH1‡Fˆ?T8kNJ6R65m??7m…t†l
+ @`sQFHvH1!R!7kNJ6R7^m?!?m…7†l
+ :D0Da0I[@PH1!R!?8kNJ6R78m?!6m…7†l
+ ZF:J=6sHo•AY138!
±
!R!^kNJ67um?!7m…7†lR
2. Đối với mặt đế:
− )2P3'[@<J‰T‰T0Da0I@sQFHo‚\!R

− 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:=

k!R^÷\R^lŒTk!R\÷!R8lŒ'T!RtŒT!R?6Œ01ZG>2G:D
@=:S3$T-T$T#HW
jFV=a@NA€FTO1|T;@GTa@NANCTY•F
Da;H1J@2@KZŽYdA1<=>R
CHƯƠNG II. XÁC ĐỊNH DẠNG SẢN XUẤT
ZJVUFFFH1NFY;3
− JVU@9<
− JVU1HFk}T0nFTHIl
u
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
− JVU1:G
4EsNEYZJVUd01A><G01F;9@GR
I@s>H1y=sHFvN<3
Dạng sản xuất
Q
1
– Trọng lượng chi tiết
•6!!: \6!!: •\:
Sản lượng hàng năm ( chiếc/năm )
9< •^ •?! •?!!
1HF} ?!^^ ?!6!! ?!!^!!
1HF0nF ?!!7!! 6!!^!! ^!!^!!!
1HFHI 7!!?!!! ^!!?!!! ^!!!^!R!!!
1:G •?!!! •^!!! •^!R!!!
I. Trọng lượng chi tiết:
HK<@KV=@O•D]3{
?
ˆ4Rγk:lR
{

?
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

+
= +
-3ZG<ZJVUMR
-?3ZGZJpk<=>T=>WlZJVUMR
3ZG<ZJpR
’3ZG<@K<2@SYyk’ˆ^Œ‘uŒl
“3<pQ><=sVf@01”T
“ˆk7Œ‘8Œl
4>ZJHK1MH13-ˆ
???!!!l
?!!
^8
?Rk?R?!!!!! =
+
+=N

k<LMl
$M]01NJZGHE2CYZJVUH1ZJVU1:GR
CHƯƠNG III. CHỌN PHÔI VÀ PHƯƠNG PHÁP TẠO PHÔI
I. Chọn phôi:
$<H10E@A:E@cT:Da0F@TJc01
NCTYZJVU1:GW0HEH1FV=Ta;U10q@JNJ
@A:EH10ER'=FH1jX?^76R
Cơ tính:
Mác gang
Độ bền
Độ cứng HB
Kéo Uốn
jX?^76 ?^ 76 ?8!?5\


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 :
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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

3
4
5
6
CHƯƠNG IV. CHỌN PHƯƠNG PHÁP GIA CÔNG VÀ LẬP QUY TRÌNH
CÔNG NGHỆ
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SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
$pH10EH1ab–FBFR'd@;QF0Ep@S
@JNJ6>2PZF3
− $UHK<B=CFD
− JNJMZU01J=1
I. Chọn chuẩn thô :Pb@<y>2PZF3
− sG@QHKY=NA[<•
− *J@J@;V=P<0A0O;9BFyF=NA[:DFD
0I=NA[FD
4I>2P2F[N2k:;I—8!lH1pD@SFDf>2
D@P2
II. Chọn chuẩn tinh :
− $GepH1p;
− $pDEgp<:<@SZFZGpH1Nx!
− $pZF:FD<:DNON<YYHeTH:cR'[
pJ@QYE;@O0OR
− $GepGUR
ny>2e2FpGUH1[—\!Tp;H1Ho
—\!TpdH1[?R
III. Các phương án gia công:
?6
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063

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:
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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
˜

)
X

W
˜ ˜ ))
X
W
Nguyên công 2: Tiện mặt 5, 6, 8, 2

S
S
n
˜
)
X

W
˜ ˜ ))
X
W
Nguyên công 2: Tiện mặt 1, 3, 4
S
S
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X
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n
X

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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

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X X
Nguyên công 4: Phay mặt 11
S
n
W
˜
)

X

˜ ˜ ))
X X

Nguyên công 4: Phay mặt 11
S
n
W
˜
)
X

˜ ˜ ))
X X
Nguyên công 5: Khoan lỗ Ø10 (9)
W
n
˜
)
X

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X X

Nguyên công 5: Khoan lỗ Ø10 (9)
W
n
˜
)

X

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X X
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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
˜

)
X

˜ ˜ ))
X X
Nguyên công 7: Phay rãnh
W
n
˜
)
X

˜ ˜ ))
X X
F9=22C9=?ZŽYdpGUY@aV€
0A[MVU01@JNJ0A@;V=:;I~@NaFR4C0>T
phương án gia công 1R
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SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
CHƯƠNG V. THIẾT KẾ NGUYÊN CÔNG
1 98
10 11
3
5
2
7
6
4
12

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

2.Chọn máy:
$=>E8?8kF6?8m…8†l
DZG=>3
Đặc tính kỹ thuật Thông số
$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
$DZU@9k:šl \R^
3.Chọn dụng cụ cắt:
FE1eJK:]*tkNJ\8m65um…7†l
FEweJK:]*tkNJ\tm65tm…7†l
FEHoeJK:]*tkNJ\?\m7!6m…7†l
4.1 Tiện thô:
+ Tiện mặt 1.
$AZse3ˆ?R5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
^8\
??!?\R7
?5^?!!!?!!!
=
×
×

=
×
×
=
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

ˆ!R?^L0
G@e30ˆ?uukLlk*J^8^m^um…\†l
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.
$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
?!!!

RR
==
π
π
may
nD
kLl
+ Tiện mặt 4.
$AZse3ˆ6R?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
?6t?
\\?\R7
?uu?!!!?!!!
=
×
×
=
×
×
=
D
V
n
π
k0|Ll

•''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?\?!!!?!!!
=
×

×
=
×
×
=
D
V
n
π
k0|Ll
•''3ˆ5^t0L
4G<34ˆ
77?
?!!!
5^tR??!R
?!!!
RR
==
π
π
may
nD
kLl
+ Tiện Ø38.
$AZse3ˆ!R?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
?\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.

$AZse3ˆ!R?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
6!
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
•''3ˆ?7t!0L
4G<34ˆ
?u7
?!!!
?7t!R\!R

?!!!
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

E?HP<HKY?R52ˆ?
4>3
?8R!
^!78?R!
7?67^
R
R
6?
!?
=
++
=
++
=
xnS
LLL
t
6R!
?7t!?^R!
777t
R
R
6?
!6
=
++
=
++
=
xnS

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

xnS
LL
t

!
ˆ
!?
„
!6
„
!7
„
!\
ˆ!R^8kl
FE3
tnpvpTC
TTTTT
+++=
!
kl
@a

3Fn<kF>2Dl
6?
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG

!
3F9NJN<@v<CY=<



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:

i
nS
LLL
T R
R
6?
!
++
=
kl
E?HP<HKY!T?2ˆ?
4>3
6R!
5^t66R!
777^
R
R
6?
!?
=
++
=
++
=
xnS
LLL
t
6?R!
?7t!?^R!
777t

R
R
6?
!6
=
++
=
++
=
xnS
LLL
t

?R!
?7t!?^R!
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tientinhtientho
TTT
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66
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
II. Nguyên
công 2:
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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 :
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Sai số chuẩn:
ε
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ε
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2.Chọn máy:
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Đặc tính kỹ thuật Thông số
67
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063
*I '[FD kl ZkL0l 0kLl k0Ll kl
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Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
$AFskl ?8!
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3.Chọn dụng cụ cắt:
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4.1 Tiện thô:
+ Tiện mặt 2.

$AZse3ˆ?R5R
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Y
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G0|BF>3
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=
×
×
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×
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V
n
π
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RR
==
π

π
may
nD
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+ Tiện mặt 5.
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
Y
ˆ!R?^L0
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\!?\R7
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×
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×
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D
V
n
π
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6\
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063

Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG
4G<34ˆ
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?!!!
RR
==
π
π
may
nD
kLl
+ Tiện mặt 6.
$AZse3ˆ6R
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
Y
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G@e30ˆ?uukLlk*J^8^m^um…\†l
G0|BF>3
?6t?
\\?\R7
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=
×
×
=
×
×

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D
V
n
π
k0|Ll
•''3ˆ?7t!0L
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?7t!R\\R
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RR
==
π
π
may
nD
kLl
+ Tiện mặt 7.
$AZse3ˆ?R
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Y
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G0|BF>3
?!7^
8!?\R7
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=

×
×
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×
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V
n
π
k0|Ll
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4.2 Tiện tinh:
+ Tiện mặt 2.
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
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6^
SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063