Bài tập thiết kế mô hình ba chiều với mechanical desktop

Veri Align/ Par/ aNgle/ Ordl Diameter/ pLace] : 50 .J Select first object: Chon dLiOng IrOn C2 hlnh 1.5 Select second object: Chon m¢1 diem b8t kY cte d~t kfch thlidc Enter dimension

NGUYEN TRONG HUU

LOI NOI ElAU

Tren th8 gidi hi$n nay xu hu'dng thitH ke' m6 hlnh ba ch~u (3D) phcit tri~n m<;~.nh va n:'0 hlnh h6a hlnh hQc d6ng vai tr6 quan tn;mg nhBt trong qua trinh thie't k€ kY thuat MQt trong nhUng ph8.n m9m slt dt,1ng di! thie't k6 m6 hlnh ba chi8u 1.3 Mechanical Desktop SB.ch nay dl1Q"c biE!n so<;~.n cUng vdi sach Thle't ke' cac m6 hlnh ba chleu vdl Mechanical Desktop vdi m1.,1c dich ren luy(!n kY nang th\,l'c h8.nh thi8t k€ mO hlnh siln phBm tren may lfnh

sach baa g6m 17 bai t$p lien quan d9n 04 nQi dung chinh cUa phcln m8m Mechanical Desktop:

M6 hlnh solid (part modeling) g6m 12 b8i, ttl bi:li 1 d8n 12 M6 hinh lAp rap (assembly modeling) g6m 2 b8.i 13 va 14 san ve hai chi9u tU m6 hlnh ba chi9u (drawing) bcli 15

M6 hlnh m~t cong (surface modeling) g6m hai bili 16 va 17

M6 hinh solid dllqc tham khllo thea mO tlinh b¢ d8 On ~p thl tay ngMi "Ve va thi8t k8 ba.ng may tfnhft toan quOc nam 2004 [6J

X in cam dn cac b9n c6 Y ki8n d6ng g6p, phe blnh nhtJng thilu s6t cUa sach cte cho cac IB.n xuat bB.n sau s<ich dti<;lc ho8n thi(m han MQi y ki8n d6ng g6p, phe binh va th8.c m8.c xin glti v8 d(a chT:

1 3.3 Tl;l.o rang buQc giO'a cac d6i ti.JQ'ng 20

1 3.4 Di;tt klch thu'Oc cho cac Cl6i tUQng 20 1.3.5 T~;~.o solid quet bil.ng l$nh Amextrude 21 1.3.6 T~;~.o ella nhin quan sat kh6i 22

3- T~;~.o solid quet bllng 1qnh Amextrude 26 4- Tao ella nhin quan sat kh6i 26 2.3.2 Vat mep de c~;~.nh bling l$nh Amchamfer 27 2.3.3 Chon mau va tO b6ng cho mO hinh 28

3- Tq.o solid quat bil.ng l$nh Amextrude 31 4- Tq.o eLla nhin quan silt kh6i 31 2.3.2 Tf;lo kh6i tr1,1 phia tr~n 32

1- Tq.o mi:ll phang ve phS.c bil.ng l$nh Amskpln 32

3-Tq.o solid qu9t bling l~nh Amextrude 41

3- Tao rang buQc va dl)t kfch thlldc giGa cac d6i 47 tLIQng ella bien d;;~ng

4- T;;~o solid quat bAng l~nh Amrevolve 48 5- Tq.o clta nhln quan sat kh6i 48 5.3.2 Ho 16 tren thanh trt,J d8."1 49 1- T;;~o ml)t phAng lam vl~c 49 2- Chuy4n v~ khung nhln ph.in.g SO 3- Ve phac bien d;;~ng cho dLIO"ng dolin 50

8- T1,1o solid quat bling l~nh Am sweep 53

M6 hlnh 16 xo nen

7.1 NQidung

7.2 cac l(!nh sU dvng

7.3 cac bl.ldc thl,/c hi(!n

7.3.1 vao thu vi(!n 1ay chi ti€t tit'!u chu§n

7.3.2 T<;to cUa nhin quan sat kh6i

7.3.3 Chon mau va tO b6ng cho m6 hinh

1- Chon mau cho m6 hlnh 2- TO b6ng m6 hlnh

4- Tq.o cUa nhln quan sat kh6i 8.3.2 T;;to b6n 16 xung quanh 6ng 16t

1- Tao m~t ph!ng 18m vit'?!c 2- Chuy~n ve khung nhin ph!ng 3-ve phac bit'!n di;ing

4- Tf;lo b1€m d;;tng 5-T~o solid quet bil.ng lt'?!nh Am revolve

6-Til!O b6n 16 xung quanh 6ng 161 8.3.3 Chon mau va tO b6ng cho mO hlnh

M6 hlnh nUt xi hdl

9.1 NQi dung

9.2 cac lo$nh si'l dvng

9.3 Cilc blldc thi,/C hi(!n

9.3.1 Tq.o Solid 1

1- ve phac bit'!n dq.ng 2- T<;to bit'!n d~ng

10.3.1 T<;~.o phtin trv phfa du'Oi 96

3- Tc;~o rAng bu(lc ghJ"a cac d61 tu"Qng 97 4- E>i!lt kich thLICic cho cac d61 tu'Qng 100 3- Tc;~o solid quat bAng l(lnh Am revolve 102 4- Tq.o elsa nhin quan sat kh6i 102

1- Tc;~.o mi!lt phAng vi! phac bAng l(lnh Amskpln 103

4- T~o solid quat bi!ing l(lnh Amextrude 104 10.3.3 T~o kh6i tn.1 nhO ph fa tr~n kh6i lvc giS.c 105 1- Tc;~o mi)it phAng ve phcic bAng l(lnh Amskpln 105

3- Tc;~.o bil!ln dc;~.ng 106 4- Tc;~.o solid quat bAng l(lnh Amextrude 106 10.3.4 Tc;~.o kh6i trv tOn phfa tri!!n kh6i lvc glac 107 1- Tc;~o m~t ph!ng ve phAc bc\ng l(lnh Amskpln 107

B8111

3- T<;~o bil!n d;;tng 4- T;;to solid quet bAng l~nh Amextrude 10.3.5 Veil m9p kh0i h,JC gi<ic

1- T<;~.o ln,Jc 18.m vil;lc 2- T;;to m~t phAng lAm vil(!c 3- Chuy!§'n vi! khung nhln phAng 4-ve phac bil!n dq.ng

5- T1;1:0 bll!n d~;~.ng 6- T~;~.o solid quet bAng ll;lnh Amrevolve

7- T<;1o clta nhin quan sat kh6i 10.3.6 T(l.o ren cho chi ti6t

10.3.7 T.;~.o 10 cho chi ti~t

10.3.8 Bo tr6n va v<it m8p cac c;;~nh

1- Bo tr6n cac co;~nh 2-vat m8p c<;~.nh chi ti~t 10.3.9 ChQn mau va tO b6ng cho mO hinh

3- T1;1:o solid quat bAng l~nh Amvolve 121 4- T<;~o cUa nhln quan sat kh61 121

1- T;;to m~t ph!ng ve phS.c bAng h!)nh Amskpln 122 2- Chuy4n sang khung nhln phAng 123

5-Tq.o solid quet bAng l(lnh Amextrude 123 6-Tq.o ella nhln quan sat kho'i 124 7- Xoay Solid 2 quanh kho'i ln,J tq.o gay nham 125 11.3.3 Tq.c ren cho chlti~t bAng l~nh Thread 126

12.3.1 Tq.o kho'i tn,1 ngang phla trtJde 130

2- TM ella nhin quan sat kho'l 131 3- Tq.o m~t phcing ve pMc bAng l(lnh Amskpln 132 4- Chuy4n vi!! khung nhln phAng 132

10

7· T<.~o solid quat bilng l$nh Amextrude 134 12.3.2 C!it bO m¢t ph<'in kh6i tn,1 ngang phla trudc 135 1· T<;lo m~t phAng ve phS.c bAng l$nh Amskpln 135

5- T<;~.o rang buQc va di[lt klch thU'(lc cac Mi 147 lu'Qng cUa bil!n d<;~.ng

6- Tll!O kh6i tn,J giG'a bAng h(!nh Amrevolve 147 7- Chuy6n sang khung nhln hlnh chi~u tn,Jc do 148

1- T<;lo ml)t ph!ng ve phS.c 149 2- Chuy6n tU khung nhin hlnh chi~u trvc do v~ 149 khung nhln ph!ng

4- T~;~o gan tAng cdng bAng l$nh Rib 164

4- T$o Solid quet bAng l$nh Amertrude 166

12.3.11 T<;~o gan tAng cdng nAm ngang 170

12.3.15 Bo tr6n cac ~nh gan tang cdng ph fa trudc 180

kho"i lrl,l dlfng va ph fa triln kh6i trv ngang

12.3.16 Bo tr6n C$nh ella taycAm vdi g6c bod cac 182

do.;tn c6 biln kfnh thay ddl

12.3.17 Bo tr6n cq;nh giao tuyAn giOa kh6i trv dUng 185

va gan ph fa dlldi kh6i trv ngang

12.3.18 Bo tr6n cac cq;nh hai gan tAng cdng nAm 186

ngang vOi ban kfnh bo thay ddi

12.3.19 T~;~o 16 cho kho"i trv ngang phia trlldc 187 12.3.20 T~;~o 16 phun nhiiln li$u 189 1- T~;~o m~t ph!ng vii ph<lc 189

12.3.21 T~o 16 cho kh6i trv th<ing dUng 194

2- T~o 10 dtidng klnh 24mm, sau 57.5mm 195 3- T~o !0 dtidng kinh 30mm, sAu 48mm 196

12.3.22 vat mep c~nh kh6i trv ngang va kh6i trv :198

dUng 12.3.23 T~o 10 cho kh61 trv ngang phfa sau 200 1· T.;to 10 dudng kfnh 24mm sAu Smm 200 2- T.;to 16 sAu 29mm va c6 ren m¢t do~n 19mm 200 12.3.24 Te.o 16 thOng giOa kh6i trv dUng va kh6i trv 202

ngang 12.3.25 ChQn mau vel tO b6ng cho mO hlnh 203

88.113 Lip nip c&c chi tlt"t vdl nhau 205

th8nh m6 hlnh sUng phun

13.3.1 TS.i cac chi ti~t dii ve vao bc\n ve hi(ln hAnh 206

3- LAp chi ti~t 10 vao cvm chi ti~t 218 4- LAp nUt xa hdi vao chi ti~t 1 o 220

7- LAp v6ng d(lm nUt vao nAp v~n 225

10- Uip v6ng d(lm 6ng bdm vao cvm chi ti~t 228 11- LAp O"ng bdm vao cum chi ti~t 229

13- LAp nAp v~n va cac chi ti~t vao than 234 14- Xoay ch6t song song vdi kh6i trv ngang 235 ella thAn

15- LAp v6ng d(lm thU hai vB.o thAn 236

1- El!nh gidi h;;~n khd gi;\"y 2- Tc;:to hlnh chiau 3- Ghi chU s6 vi trr 4- T;;~o bSng kE! chi tiat 5- Hoan thi$n bci.n ve

t 5.3.3 Ch8n <lnh vao b<'tn ve

1- T;;to t~p tin B.nh 2- Them layout mdi 3- Ch8n 8.nh vao bi'tn ve 4-An khung chi) nh~t bao quanh ltnh 5- Chen khung ten vao b<in ve

16.3 cac budc thl,lc hi$n

t 6.3.1 T c;to cac m~t cong ce1 sO

1-ve phc\c bi$n dq.ng 2- Tf;l.o m~t phiing ve phac 3- T~o c<ic ml).t cong co sd 300

16.3.3 T~o cac ml).t cong bo tr6n 305 1- T~o cac m~t cong bo trOn thU nha"t 305 2- T~o ml).t cong bo IrOn c6 b<in kinh thay d6i 306 16.3.4 T~o cac ml).l cong d6i xUng 307

16.3.6 Sao ch{lp c<ic c~nh va An cac d6i tlfQng 310

14

17.3.1 T<;to cac m!j.t cong ca sO 315

2- Quay UCS m¢1 g6c 90° quanh trt,Jc X 316 3- Quay UCS mQt g6c 90° quanh tr1,1c Y 317

1- Te,o d.c m!j.t cong bo tr6n thU nhAt 321 2-Tq.o cac m8,t cong bo tr6n thU hai 322

1-Quay ucs mQt g6c 90° quanh tn,Jc X 329

M0 BiNB SiJNG PBUN

/ Xay dl,lng m6 hlnh 30 cua cac chi tiet

"' L~p rap cac chi tilit thanh cvm chi tiet

thao l~p

"' Xay dl,lng ban ve 30 tach cac chi tiet

M6 hlnh sung phun sau khi lAp rap

hi~n trlnh tv thao l~p nhlf hlnh b~n dlloi

Mo hlnh cac chi tilt tach cua sung phun

- Ban ve bao g6m cac chi tiet sau:

14- chat

Trong cac bai t~p l~n h t<;lt chung t6i giai thi~u trlnh tV ve cac chi tiet tr~n va t<;\0 ban ve l~p (tach)

MO BiN& VONG DEM •

Hinh 1 1 Mo hinh vong dcm

l~nh Amddcon d~ t<;to rang bUQC giO'a cac doi tu'<;1ng trong Profile

l~nh Ampartdim dung d~ d~t kich thu'oc cho cac doi tu'<;1ng cua bien dGtng trong phac thao

Lenh Amxtrude dung d~ quet bien d<;tng (profile) thanh khoi rAn

1.3 Cac blloc thl;.l'c hi~n

- E>~ xay dl,lng m6 hlnh vong d~m tru'oc tien chung ta khoi d¢ng chu'dng trlnh MECHANICAL DESKTOP 2004DX b~ng m¢t trong cac each sau:

• ChQn Start > All Programs > Autodesk > Mechanical

Desktop 200DX > Mechanical Desktop 200DX

~ I 0 [J ~iS Start from Scratch

0 I~ (feet and inches) 0~i9

20

• Chon Part> Sketch Solving > Profile

• Nh~p Amproflle (hay l(lnh tAt PP) tU b€\n phfm va nhan ENTER

Select objects for sketch: (Chon hai dlf6'ng tr6n C 1 va C2 hlnh 1.5)

Select objects for sketch: .J

1.3.3 Tlilo rang bu(ic giii'a cac d6i ILII;Ing cua bh!in d~;mg

- SU dl,mg l$nh AMDDCON cte t~10 cac rang buQc giO'a ca.c d6i tu'Qng cUa bi~n d~ng thea trlnh tl$ sau:

Command: AMDDCON (ho~c JJ) .J

[Hor/ Veri PErpl PAri TarV CU CN! Projl Join/ XValue/ YValuel Radius/

Length! Mir! Fix/ eXit] <eXit>: CN J (Concentric- d6ng tam)

Select object to be reoriented: (Chon du'Ong C1 hinh 1.5)

Select object to be made concentric to: (Chon dLiOng tr6n C2 hlnh 1.5)

Select object to be reoriented: .J

[Hor! Veri PErpl PAr! Tan/ CU CN! Projl Join! XVa/ue/ YValuel Radius!

Length/ Mirl Fix! eXit] <eXit>: J

• Ket thUc l$nh, hai dLidng tr6n dLfQ'c dlfa ve dOng tam vOl nhau nhlf

hlnh 1.6

Hlnh 1.6

3.1.4 E>i,lt kich thu'oc cho cac doi tu'l;lng cua bien dli!ng

- SU dyng l~nh Ampardlm d8 d~t kich thLtdc:

- vao l$nh Ampardlm bAng mQt trong cac c8ch sau:

•

• NhA'p chQn bi8u tLfQ'ng ~ tren thanh cOng ct,L

ChQn Part> Dimensioning > New Dimension

• Dlia con trO chu¢1 d€n m¢1 di~m bfit kY trong vUng d6 hoa, nhBp ph3i chu¢t tren menu vua xuBt hi~n chon

Dimensioning> New Dimensioning

• Nh$p Ampardlm tU b8.n phfm {l$nh ti'it II) va nh8n ENTER

Select first object: (ChQn duOng IrOn C1 hinh 1.5)

Select second object: (ChQn m¢1 di6m de d~t kich thlldc nhu' hlnh 1.7)

Enter dimension value or [Undo! Hor! Veri Align/ Par/ aNgle/ Ordl Diameter/

pLace] <65.49>: 50 .J

Select first object: (Chon dLiOng IrOn C2 hlnh 1.5)

Select second object: (Chon m¢1 diem b8t kY cte d~t kfch thlidc)

Enter dimension value or [Undo/ Hor/ Veri Align! Par/ aNgle! Ordl Diameter/

3.1.5 T~o solid quet biing l~nh Amextrude

- vao l$nh Amextrude bang m¢t trong cac each sau:

NhA'p chon bi~u tllc;lng tlltren thanh cOng Cl)

Chon Part> Sketched Features > Extrude

E>Ua con tr6 chuQt de'n m¢t di~m bfit kY trong vUng dO hQa, nhflp ph.9.i chu¢1, tren menu vlia xui!lt hi~n chon

Sketched & Work Features > Extrude

Hay nh~p Amextrude tU ban phim (t~nh t9.t G) va nhAn ENTER

- H¢p thOGti Extrusion xuAt hi~n Ta nhl)p gi8 tri 1 vao 0 Distance, sau d6 nhfin nUt OK tU hQp tho~;~.i

1.3.6 T'o cita ntlln quan sat khoi

- TGto ella nhln quan sat khOi bAng m¢1 trong cac each sau:

• Nh8p chon bi6u tliQng I~~ tr8n thanh cOng cv

• Chon View> 30 Views > Font Left Isometric

• Nh~p 8 tU bc\n phfm va nhfin ENTER

- Sau khi 11;1.0 ella nhln quan sat kh6i, mO hlnh nhln thea hlnh chie'u

tn,lc do tU trcii sang nhli h/nh 1.9

Hlnh 1.9

1.3.7 ChQn mau cho mO hinh

- Chon mau cho mO hlnh thea trlnh h,l sau:

- eua con trO chu¢t vao trlnh Desktop Browser, chon vao Part1, sau d6 nh8p chu¢1 phSi, tr6n menu vUa xu8t hi(m chon Properties > Color

- H¢p tho$i Select Color xu8t hi~n nhlf hlnh 1.10 Ta chon m¢t rnau

bift kY dt$ gan cho mO hlnh, sau d6 nh8n nUt OK

ChU j: Khi chon mau nao thl mau d6 se hi&n thi Cl dlldi 0 so$n thlw cUa h¢p tho~i Co/ornhll hlnh 1.10

IIIII'! Select Color r'f ' l)( ,

• Chon bi~u tl1<;1ng l6i I tren thanh cong Cl,l

• Chon View> Shade> Gouraud Shade, Edges On

-Sau khi chon mau va to bong, mo hlnh c6 d;;mg nhll hlnh 1.1

- Sau d6, ta luu ban ve theo duong dan sau day: C> Sung phun > Vong dem

Chu y: Ta c6 th~ thl,l'c hi~n theo each thu hai nhll sau:

1- Su dl,lng cac l~nh tGtO hlnh va hi~u chinh nhll trong AutoCAD, ve phac bien dGtng nhll hlnh 1.12

25

18 25

t

Hlnh 1.12

2- Su dvng l~nh Amproflle tGto bien dGtng cho cac doi tll<;tng vua ve

3- Su dvng l~nh Amrevolve xoay bien dGtng quanh true xoay

Command: Amrevolve .J

~""'"""' r~:~llr.lllfir.n <>vie• lr.hnn l'ioti'inn thAnn rl.:.i nhelt hAn nhi!oi hlnh 1 1?\

- Tt.Jdng t\,1 voi cac l~nh va cac bt.Joc thl,fc hi~n nht.J tren, ta xay dl,fng

mo hinh vong d~m nut (hlnh 1.15a - chi tiet 4) va vong d~m 6ng bdm (hlnh

1 15b -chi tiet 5) c6 kfch thuoc nht.J hinh 1 15

a) Vong d~m nut b) Vong d~m 6'ng bam

Hlnh 1 15 Vong d~m nut va vong d~m 6ng bam

- Sau khi xay dl,fng mo hinh vong d~m nut va vong d~m 6ng bdm

ta lt.Ju vao ct:mo tht.J muc C.> Suna ohun > VC>na dem nut fVona dam nnn

L(lnh Amproflle de bi6n c8c d6i ttJQng thBnh bien d<;ing (profife) ph8.c

L(mh Amextrude dOng de' quet bien d<;tng (profile) thBnh khOi r8n L(lnh Amchamder dUng de vat mep cUa chi ti6t

2.3 Cac budc thl,l'c hi~n

2.3.1 T~;to khoi CCI sa

1 -ve phcic bien d~;tng

26

- SU dl,lng l$nh Circled~ ve dllOng IrOn du'Ong kinh 6mm

¢6

Hinh 2.2

2- Ti;lo bien di;lng

- Slt dt,mg l~nh Ampro111e de chuy6n dttOng trOn th8.nh billn dC;lng ella phac thllo

- vao l(!nh Amproflle bAng mQt trong cac each sau:

Select objects tor sketch: (Chon dLJOng tr6n vUa ve)

Select objects tor sketch: J

3- Ti;lo solid qu6t bAng l$nh Amxtrude

- vao l(!nh Amxtrude bB.ng m¢t trong cac each sau:

• Nh8p chon bi8u IU<;Ing [ill tren thanh c6ng Cl,l

• Chon Part> Sketched Features > Extrude

• 8Ua con tr6 chu¢t d€n m¢1 di4m M~l kY lrong vUng d6 hQa,

nhA"p pha.i chu¢1, lr8n memu vUa xuA"t hi$n chQn Sketched

& Work Features > Extrude

• Nh~p Amextrude (l$nh 181 G) tU bSn phim va nhA"n ENTER

• H¢p lho~i Extrusion xu a': I hi~n Ta chQn Blind b 0 Type va nh~p gia

tri 16 vao 6 Distance sau d6 nhA"n nUt OK

4- T~o elsa nhln quan sat kh6i bAng mQt trong cac each sau:

• Nhap chon bi~u tu'Qng I Ql tr~n thanh c6ng Cl,J

• ChQn View> 30 Views > Font Left Isometric

2.3.2 Vat mep cac Cl;lnh bAng l~nh Amchamfer

- vao l~nh Amchamfer bAng m¢t trong cac each sau:

Nh~p Amchamfer tU ban phim va nh8n ENTER

H¢p lho~i Chamfer xu8t hi~n Ta chon Equal Distance Ci 6

Operationva nh~p giil trj 0.5 vao 0 Distance1, sau d6 nh8n nUt OK

Select edges or faces to chamfer: (ChQn dtJOng IrOn C1 hlnh 2.3)

Select edges or face to chamfer <continue>: (Chon dUOng tr6n C2 hlnh 2.3) Select edges or face to chamfer <continue>: .J

28

Hinh 2.4

- K€1 thl.ic l~nh, hai di3.u chOt dLiQ'c vat mep nhLf hlnh 2.4

2.3.3 ChQn mau vii to bong cho mo hinh

1- Chqn mau cho m6 hlnh thea trlnh llf sau:

- Du'a con tr6 chuQt vao trlnh Desktop Browser, chon vao Part1, sau

d6 nh.:lp chu¢1 ph8.i, tren memu vUa xufit hi$n chon Properties> Color

- Xuclt hi$n hQp tho;;~.i Select Color Ta chon m¢1 mau b8t kY dei gan

cho m6 hinh, sau d6 nhA"n nUt OK

2- TO b6ng cho m6 hinh b8ng mQt trong cac c8.ch sau:

• Chon bieiu tliQ'ng I!S.11 tren thanh c6ng cv

• Chon View> Shade > Gouraud Shade, Edges On

- Sau khi 16 b6ng, m6 hlnh c6 d9.ng nhtJ hinh 2.1

- Lu'u b8.n ve thea dLIOng dAn sau: C.> Sung phun >Chat

MO BiNB ONG LOT

phAng phac thao (d~ ve va tGto bi~n dGtng)

Cac l~nh tGto hinh va hi~u chinh nhli trong AutoCAD , vi dv Line ,

Circle , Extend , Trim ,

L~nh Amproflle de bien cac doi ttJQng thanh bien dGtng (profile)

phac thao

L~nh Amddcon de tGtO rang bUQC giua cac doi ttJQng trong Profile L~nh Ampartdim dung d~ d~t kfch thlloc cho cac doi ttJQng cua bien dc;lng trong phac thao

L~nh Amextrude dung d~ quet bien dc;lng (profile) thanh khoi rAn

L~nh Amhole dung d~ khoan 16 tren ch1 t1et

3.3.1 T~o khoi trv duoi

30

- Truoc ti~n ta ma m¢t ban ve moi b~ng m¢t trong cac each sau:

• ChQ[l vao bi~u ti.J'Qng I ol t r ~n thanh c~ n g Cl,l

• ChQn File> New

• Nhan t6 hc;sp phfm Ctrl + N

- H¢p tho<;ii Creat New Drawing xuat hi~n Ta nhap chQn Metric d~

chQn h~ met, sau do nhan nut OK w h¢p tho<;1i d~ t<;1o ban ve moi

Chu y : Khi khai d¢ng chuang trlnh, neu khong xuat hi~n h¢p tho<;ii Creat New Drawing ma xuat hi~n h¢p tho<;1i Select template , ta vao h¢p tho<;ii

Options b~ng l~nh Options d~ chQn l<;ii

«MCAOPP»

, Fies Oosp&oy Open on:! s P1ot1no S)lttem J User Pleletences Ooafllno I S - Ploliot AM Standar ' •

Hlnh 3.3 H<?p tholfli Opt i ons

- Vao l~nh Options b~ng m¢t trong cac each sau:

• Nhap chQn bi~u tuc;sng ~ tr~n thanh cong cv

• ChQn Assist> Options

• Nh~p Opt i ons (l~nh tAt OP ) W ban phfm va nhan ENTER

- H¢p tho<;ii Opt i ons xuat hi~n nhll hlnh 3.3

- Trong h¢p tho<;1i Options , ta chQn trang System , sau d6 chQn

Show Startup dialog box a 0 Startup Sau khi chQn xong ta nhan nut OK

- TU d8y, m6i t;1n khC1i dQng chUang trlnh hay mC1 b8n ve mOi, hQp thoc;ti Creat New Drawing xua't hi~n

- vao l~nh Amproflle bAng mQt trong cac each sau:

• Nha'p chon bi~u tLfQng ~ tren thanh c6ng cl,l

• Chon Part> Sketch Solving > Profile

• f)Lfa con trO chuQt de'n mQt di4m ba't kY trong vUng d6 hQa, nha'p ph8i chuQt, tren menu vUa xuat hi~n chon

Sketch Solving > Profile

• Nh~p Amproflle {hay l$nh Uit PP) tU bAn phim vA nh8:n ENTER

Select objects for sketch: (Chon dlfdng trOn dlfdng kinh 19mm vUa ve)

Select objects tor sketch: J

3- Tc;t.o solid quet b9.ng l~nh Amextrude

- VAo l~nh Amextrude bAng mc)t trong cac each sau:

• Nha'p chon bi4u tLfQng [ij tren thanh c6ng c1,J

• Chon Part> Sketched Features > Extrude

• Bu'a con tr6 chuQt de'n mQt di~m ba't kY trong vUng d6 hoa, nh8:p ph8i chuQt, tren menu vlta xutlt hi~n chon

Sketched & Work Features > Extrude

• Nh~p Amextrude tU bAn phim (l~nh tAt G) va nh8n ENTER

- HQp thoc;t.i Extrusion xu8t hi~n Ta nh~p gi8 tri 1 vao 0 Distance,

sau d6 nh8n nUt OKW hQp thoc;ti

4- Tc;to cUa nhln quan sat kh6i bAng mQt tron~ cac each sau:

3.3.2 T~o khoi trv phia tren

1- Tc,to m~t phll.ng ve phcic bAng l$nh Amskpln

-Chon m~t 1 hlnh 3.4 18 m~t phAng ve ph8c

- vao l$nh Amskpln b8.ng m(lt trong ccic each sau:

•

•

Nhfip chon bi6u ILiQng lEbJ tren thanh cOng cv

Chon Part > New Sketch Plane

• 8u'a con tr6 chuQt d9n mQt di6m b8:t kY trong vUng dO hoa, nh8p phi3.i chu(lt, tren menu vlla xu8t hi$n chon New Sketch Plane

• Nh$p Amskpln (l$nh tat SS} tU ban phim va nhBn ENTER

Select work plane, planar face or [World Xyl World Yxl World Zx}: (Chon

dLidng tr6n C1 hinh 3.4)

Plane=Parametric

Select edge to align X axis or [Flip! Rotate! Origin] <Accept>: .J

2- ve phB.c bien d.;tng

- Ta sU dt,mg l$nh Circle ve dUOng IrOn C2 c6 tam va ban kinh

bat kY nhu hinh 3.5

Command: Amproflle .J (l~nh tAt PP)

Select objects for sketch: (Chon dtJOng trOn C2 hlnh 3.5)

Select objects for sketch: .J

4· T~o rang bu¢c giO'a ccic dOi b.IQng cUa bien dl,'lng

sU d1,1ng l~nh Amddcon d~ tl,'lo ccic rang buQc giUa ccic d6i h.iQ'ng cUa bi8n d9,ng thea trlnh tlj sau:

Command: Amddcon J (l~nh tAt JJ)

[Horl Veri PErpl PAri Tan/ CU CNJ Projl Join/ XVa/ue/ YVa/uel Radius/

Length/ Mirl Fix/ eXit] <eXit>: CN J (Concentric- d6ng tAm)

Select object to be reoriented: (Chon dtJOng trOn C 1 hlnh 3.4)

Select object to be made concentric to: (Chon dtJOng trOn C2 hlnh 3.5) Select object to be reoriented: .J

[Horl Veri P5rpl PAri Tan/ CU CNJ Projl Join/ XVa/ue/ YValuel Radius!

Length/ Mirl Fix/ eXit] <eXit>: .J

· Sau khi k8t thUc l~nh, hai dliOng trOn dtJ<;Ic dtJa ve d6ng tAm vdi nhau nhlf hlnh 3.6

1-/Jnh .'l6

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5-8~1 kich thu'Oc cho cac d6i tu'c;sng cUa bi6n d:;mg

- SU dt,mg l$nh Ampartdlm d~ d~t klch thU6'c cho eSc d6i IU<;:Ing ella bien dl;lng:

- vao l~nh Ampartdlm bEmg m¢t trong cac citch sau:

Dimensioning > New Dimensioning

• Nh~p Ampardlm tU b8n phim (l~nh t~t II) va nh8n ENTER

Select first object: (Chon dUO'ng trC>n C2 hlnh 3.5)

Select second object: (Chon m¢1 di~m d~ d~t kfch thUOc nhli hlnh 3 7)

Enter dimension value or {Undo/ Horl Veri Align! Par/ aNgle/ Ord/ Diameter!

pLace] <8.49>: 11 .J

Select first object: .J

Hlnh 3.7

6-T~;~.o solid quat bAng l$nh Amextrude

Command: Amextrude .J (ho~c G)

- H<>p tho~i·Extruslon xuflt hi~m Ta chqn Join Ci 0 Operation, chQn

Blind Ci 0 Type, nh~p gia tr! 5 vao 0 Distance, sau d6 nhfln nUt OK tU h¢p tho~i Extrusion

[10111:

Tg

Hinh 3.8 H()p thoQi E x trus i on

Chu y : Mui t6n mau xanh d[nh huang phai huang l~n tren Nliu mui ten mau xanh huang xuong duoi, ta nhan nut Fip d~ mui ten huang len tren, sau d6 nhan nut OK

- Sau khi ket thuc l~nh, mo hlnh nhln theo hlnh chieu tn,1c doW trai sang nhu hlnh 3.9

Khoi tn,1 2

Hlnh 3.9

3 3.3 T~o 16 xuyen suot b~ng l~nh Amhole

- Vao l~nh Hole b~ng m¢t trong each sau:

Placed Features > Hole

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- H¢p tho~i Hole xu~t hi~n Ta chQn Through a o Termination, chQn

Concentric a o Placement va nh~p gia tri 5 vao o Diameter, sau d6 nh~n nut

OKW h¢p thoc;1i Hole

Select work plane, planar face or [worldXy/ worldYx lworldZxl Ucs]: (ChQn

duong trc>n C3 hlnh 3.9)

Select concentric edge: (ChQn kh6i tn,1 2 hlnh 3.9)

Select work plane, planar face or [worldXy/ worldYxl worldZx/ Ucs]: .J

3.3.4 ChQn mau va to bong cho mo hlnh

1-ChQn mau cho mo hlnh theo trlnh tv sau:

- E>ua con tro chu¢t vao trlnh Desktop Browser , chon vao Part1,

sau d6 nh~p chu¢t phai, tren menu vua xu~t hi~n chQn Properties > Color

- Hqp tho~i Sele t Color xuat hi~n Ta chQn mqt mau b~t ky <1~ gan

2-To bong cho mO hlnh bAng mqt trong cac each sau:

• ChQn bieu tU'Qng ~ ~I tren thanh cOng cv

• ChQn View> Shade> Gouraud Shade, Edges On

Hlnh 3.12

-LU'u blm ve theo dU'ong dAn sau: C:> Sung phun > ong lot

Ch u y : Cac b<;m co the thl,fc hi~n thea each thu hai thea trlnh h.t nhU' sau:

55

4

Tn,Jc Bien d~ng xoay

38

- Sli dt,mg l~nh Amproflle t~o bien d~ng cho cac doi tt1<;1ng vua ve theo trlnh tlJ sau:

Command: Amproflle .J (ho~c PP)

Select objects for sketch: (Chon bien d~ng xoay va tn,Jc xoay hinh 3.13) Select objects for sketch: .J

3- T~o Solid quet b~ng l~nh Amrevolve

Command: Amrevolve .J

Select revoletion axis: (ChQn trt,Jc xoay hlnh 3.13)

- H¢p tho~i Revolution xuat hi~n Ta chon goc xoay Ia 360° b~ng

each nh~p gia tr! 360 vao o Angle, cac thong so con l~i chon theo m~c d!nh, sau do nhan nut OKW h¢p tho~i

Hinh 3 14 HQp tho~i Revolution

- Ket thuc l~nh, ta dtJQc bien d~ng nhu hinh 3 15

Hlnh 3.15

4- ChQn mau va to bong cho mo hlnh:

- ChQn mau cho mo hlnh, sau do sli dt,Jng l~nh to bong d~ dtJQc m6

hlnh nh1 hlnh .~ 1?

L~nh Amskpln d~ chon m~t phAng trong khong gian Ia"' m~t

ph~ng phac thao (de ve va t<;\O bi~n d<;lng)

Cac l~nh t<;lo hinh trong AutoCAD (l~nh Circle)

L~nh Amproflle d~ bien cac doi tU~1ng thanh bi~n d<;ing (profil e )

phac thao

L~nh Amddcon d~ t<;io rang bu(>c giua cac doi tUc;mg trong Profile

L~nh Ampartdlm dung d~ d~t klch thUoc cho cac doi tUc;1ng cua bi~n d<;lng trong phac thao

L~nh Amextrude dung de quet bien d<;lng thanh khoi rAn

4.3.1 T~o khoi trv

- SU dt,~ng l$nh Amproflle d6 chuy6n hai dLJOng tr6n th8nh bi8n

d1;1.ng phc:ic th8o thea trlnh tl,l sau:

Command: Amproflle .J (ho~c PP)

Select objects for sketch: (Chon hai dLJOng IrOn du'Ong kfnh 24mm va 11mm

nhli hJnh 4.2)

Select objects for sketch: .J

Lu'u Y: ChUng ta c6 th6 thl,lc hi$n thea each thU hai nhli sau:

• ve hai dliOng IrOn bAt ky

• SU dt,mg l$nh Amproflle d6 chuy6n hai dl16'ng tr6n tM.nh

bien d<;lng ph8c th8o

• Sau d6 t<;lo cac rang buQc giUa cac d6i tvqng va d~t kfch thuOc d6 dliQc bien d<;lng nhu' hlnh 4.2

3- T<;lo solid quet bAng lt?nh Amextrude

- vao l$nh Amextrude bAng mQt trong cc:ic each sau:

• NhAp chon bi6u tuqng [i1tren thanh cOng c1,1

• Chon Part> Sketched Features > Extrude

• £hJa con trO chuQt d6n mQt di~m b8t kY trong vUng d6 hQa, nhflp phcli chu¢t, tren menu vUa xuat hi$n chQn

Sketched & Work Features > Extrude

• Nh<;ip Amextrude tU b8n phfm (1$nh tAt G) va nhfln ENTER

• HQp tho<;1i Extrusion xuflt hieyn Ta nh<)p giS trj 6 v8.o 0 Distance,

sau d6 nh.3n nUt OKW hQp tho~L

4-T~o ctla nhln quan sat kh6i bAng m¢1 trong cac each sau:

• Nhap chon bi~u tLJQ'ng I~~ tren thanh cOng cv

• Chon View> 30 Views > Font Left Isometric

• Nh$p 8 tU b8.n phfm va nh8n ENTER

- Sau khi t~o cUa nhln quan sat kh6i, mO hinh nhin theo hinh chie'u trvc do tU tr8.i sang nhli hinh 4.3

C2 Mat 1

- SU d!,Jng l$nh Amproflle d4 chuy4n dLIOng tr6n C3 hinh 4.4 th8.nh

bien d~ng ph8.c thlto theo trlnh tl,l sau:

Command: Amproflle .J (ho~c PP)

Select objects for sketch: (Chon dtJOng tr6n C3 hinh 4.4)

Select objects for sketch: .J