图设计。最终达到了系统改造的要求，并且运行效果良好。
关键词：可编程控制器，
T68镗床，
梯形图，
改造
I
f洛阳理工学院毕业设计（论文）
T68HORIZONTALBORINGMACHINEPLCELECTRICALDESIGNCONTROLLEDTRANSFORMATIONABSTRACT
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talBori
gMachi
etra
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ofthePLCprogramco
trolsystemAccordi
gtoactual
eedsa
dthe
eedsofthemarketMitsubishihaschose
thecompa
ysprogrammablelogicco
trollerasaco
trolBori
gisthemorecommo
useofcoldworki
goftheequipme
titismai
lyusedforprecisio
machi
i
gfi
ishtheholea
dthehigherthedista
cebetwee
theholesrequireamoreprecisepartssuchassomeofta
kpartsareprecisio
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etoolMai
lyusedforprecisio
machi
i
gofcyli
dricalworkpieceso
theholeAxisli
eoftheseholeste
dtodema
dstrictparallelorperpe
diculartothedista
cebetwee
eachotheralsorequiresveryaccurateItsorigi
alco
trolcircuitfortherelayco
trolco
tactco
tacta
dmorecomplexcircuitsfaulta
dmoretheoperatoralargermai
te
a
cetasksi
ordertoovercometheshortcomi
gsoftheabovereduci
gthefailurerateofequipme
ttoimproveefficie
cyi
theuseoftheequipme
ti
viewofthissituatio
wetotra
sformtheiruseofPLCco
trolrelayco
trolcircuitT68throughhorizo
talbori
gmachi
eworki
gpri
cipleofthea
alysisdesig
ofPLCco
trolcircuittra
sformatio
systemthesystemi
puta
doutputpoi
tstostatisticsatotalof24i
put24outputpoi
tsarei
puta
doutputswitchJapa
sMitsubishicompa
yselectedtheFX2N48MRPLCthedistributio
ofPLCsIOaddressesthedesig
ofperipheralcircuitsPLCPLCtodetermi
etheIOwiri
gdiagramBori
gmachi
eco
troli
accorda
cewiththerequireme
tsa
dcharacteristicsarelistedi
thelogicofalgebraicexpressio
stheuseofladderlogicdesig
methodsdesig
Reachedthefi
alsystemrequireme
tsa
dru
well
KEYWORDSprogrammablelogicco
trollerT68bori
gmachi
eladdertra
sform
II
f洛阳理工学院毕业设计（论文）
目录
前言1第1章T68卧式镗床的结构和运动形式211T68卧式镗床控制原理说明书2111T68型卧式镗床的结构112电气控制线路的特点114控制线路工作原理
23
113镗床运动对电路控制的要求3
3
12T68型卧式镗床电气控制主回路r