TRNG I HC BCH KHOA KHOA C KH
TRNG I HC BCH KHOAKHOA C KH
ti: PHN CNG CAD/CAM
GVHD: Hunh Hu Ngh SVTH : Nguyn Cao Sang 21102879 Nguyn Thnh
Thut21103507 Nguyn B Vn21104165
CPUTHIT B CMMNGUYN L NG DNG CA THIT B NHP
CPU
CPU l vit tt ca ch Central Processing Unit, tm dch l b x l trung
tm.Nhim v chnh l x l cc chng trnh v d kin.Bao gm khi iu khin v khi
tnh ton.
CPU
S cu trc c bn ca CPU
N V IU KHINChc nng:K nhn lnh tip theo t b nh, a vo thanh ghi
lnh.Tng ni dung ca PC tr sang lnh tip theo.Gii m lnh nm trong thanh
ghi lnh xc nh thao tc m lnh yu cu.Pht ra cc tn hiu iu khin thc hin
lnh .Nhn tn hiu yu cu t bn ngoi , x l cc tn hiu .
M HNH KT NI KHI IU KHIN
CC TN HIU PHT RA T KKCc tn hiu iu khin bn trong BXL:iu khin cc
thanh ghi.iu khin ALU.Cc tn hiu iu khin bn ngoi BXL:iu khin b nh.iu
khin cc module vo-ra.
KHI S HC V LOGIC(ALU)Chc nng:Thc hin cc php ton s hc v php ton
logic.S hc: cng, tr, nhn, chia, tng, gim, i du.Logic: AND, OR, NOT,
XOR, dch bit, quay bit.
M HNH KT NI ALU
HOT NG CA CPUChu k lnh:Nhn lnh.Gii m lnh.Nhn ton hng.Thc hin
lnh.Ct ton hng.Ngt
GIN TRNG THI CA CHU K LNH
THIT B CMMMy o to (Coordinate Measuring Machine CMM) l thit b vn
nng c th thc hin vic o cc thng s hnh hc theo phng php to . Thng s
cn o c tnh t ta im o.C 2 loi my thng dng l o bng tay v my o CNC.o
bng phng php tip xc v khng tip xc.
THIT B CMM
My o to thng l cc my o cc 3 phng chuyn v o X, Y, Z. Bn o c lm
bng grant. u o c gn trn gi u o lp trn thn trt theo phng Z. Khi u o
c iu chnh n mt im o no th 3 u c s cho ta bit 3 to X, Y, Z tng ng vi
chnh xc c th ln n 0,1 micromt.
THIT B CMM
Cu to: gm 4 phn chnh.Thn my.u o.H thng iu khin.Phn mm o.
THIT B CMM
V kt cu, my CMM gm nhiu loi: tay gp (artigulated arm), kiu cu
(bridge), kiu cha (cantilever), kiu gin (gantry) hay trc ngang
(horizonal arm).Kiu tay gp thng l loi my nh cm tay, cho php u d
xoay t theo nhiu hng khc nhau.My kiu cu l loi c trc o c lp thng ng
vi mt dm ngang t trn 2 . My o kiu cu (theo trc X) gip m rng phm vi
ca vt th o.
THIT B CMM
Vi my o kiu cha , trc o c bi mt kt cu .My kiu gin c kt cu khung
treo trn cc c th m rng pham v trn cc vt c o. Cc my o kiu gin c cu
trc tng t nh thit k kiu cu. i vi my o kiu trc ngang, trc lp u d c t
ngang cha ra, mt u gn trn gi thng ng c th dch chuyn c.
THIT B CMM
ng dng:o kch thc chi tito profile.o gc.o su.o cc thng s phi hp
trn ,t chi tit nh phng, d song song, vung gc.o cc bin dng phc tp,
cc b mt khng gian: khun mu, chn vt, mui xe t.ng dng trong k thut
ngc.
THIT B CMMMi hng ch to my CMM c vit ring cho cc my ca mnh nhng
phn mm khc nhau. Mi phn mm c th c nhiu mun ring bit ng dng cho tng
loi thng s cn o. V d my CMM ca hng Mitutoyo c cc phn mm (mdun) nh
sau :GEOPAK : c nhiu cp khc nhau, dng cho o lng vt th 3D, c th xut
sang file dng .gws chuyn i d liu o thnh d liu chui im cho thit k
chi tit bng phn mm Pro/Engineer hoc cc phn mm khc.SCANPAK : dng s
ho bin dng 3D ca vt th, chuyn dng cho k thut ngc.
THIT B CMMSTATPAK : chuyn dng x l s liu o.GEARPAK INVOLUTE/BEVEL
: chuyn dng cho o bnh rng, chuyn d liu t my CMM sang my kim tra bnh
rng.TRACEPAK : chng trnh qut vt th 3D cho my CMM vn hnh bng
tay.Ngoi ra cn mt s phn mm khc nh : COM3D, PLOT-GEO, 3DTOL
