L~p trlnh NC

- LIC b6 di~u khicn giam sat trong m(>t h~ thong dieu khien ph:1n quyen PLC km

5. 9,~u kh'~n lrue

3.4.3. L~p trlnh NC

ChUC1Ilg trinh NC la m¢t vari ban (text) co cau t<;LO hai cac Cilu chuO'I1g trlnh (I¢nh, tu, dja chi, gia tri) theo m¢t d<;lng thuc (format) xae djnh, chi th~ may cong Cl.] NC thl.Je hi¢n cac nguyen cong el.] the de gia cong m(H chi tiet.

3.4.3.1. Cae phuang phap lap trinh NC

.:. L~p _{trlnh thll cong}

- Thl.Jc hi¢n t<;Ii b;;m giily. vai cong Cl.l t6i thi~u (giay, hULl.

- Chi I~p tdnh duqe cho may eong Cl.] NC el,l the (bo dieu khien Cl.] the). - Su dl,lng s6 tay ebng ngh¢. s6 tay toan hQe va kinh nghi¢m bim than . • :. L~p trlnh cong xui1ng (ban thll eong)

-L~p tdnh vai sl.J hD trg ella bang may (control panel) bO dieu khien Cl.] the. - SU dl.]ng b¢ so~n thao ehuC1Ilg tdnh "Programeditar".

- Sir dl;lng trg giup ella ky thu~t dO ho?, cae menu, h9i tho?! va kha nang rna ph6ng ella bO dieu khien .

- H¢ th6ng dtI<;1c Sll dl}ng d~ l~p trlnh lil h¢ th6ng CADINC (tuc ph<in rn~rn CAD/CAM), garn cac tlch hqp giao di¢n CAD va b¢ ti~n xii li (preprozessor), b¢ vi Xlc l( (processor), bQ h~u XlI H (postprocessor).

- XU<1t phat ttr CAD-3D, preprozessor chUiln bi thong tin hlnh hQc duai d,.mg cac t~p CAD (CAD- file) cho prozessor.

- Prozessor bien dich diI li¢u hinh hQC va cong ngh¢ thanh t¢p chuC1I1g tdnh NC ngu6n (NC source program).

- Postprozessor sinh chuang trlnh NC v6i ngon ngiI lUang thlch bQ dicu

khi~n cl! th€ thea postprozessor duqc chQn Iva.

3.4.3.2. M. G

Ma G

\a

th~ng/tron, gia congkhoan da: duqc rna hoa cong nghi¢p (ISO 6983). Cac rna G

daqc phan thanh lo~i nhu sau:

- G-modal (hi~u qua cho den khi co G rnai duqc dQc) G-nonrnodal (hi¢u qua chi trong khai).

- Chia tMnh d.c nh6m, VI dl}: nh6rn chuyen dQng nQi suy, nh6m chQn rn~t phang, nh6rn l~oh chuy~n dong ...

Ghi cluj: ngoai rna G, thuang duqc str dl}ng l~p trlnh thu cong, rn¢1 s6 ngon ngCi: b$c cao khac duqc su dl}ng d~ l~p trloh cang xuemg nhu HEIDENHAIM. ANI LAM ...• hoac I~p trinh may nhu: APT. AUTOPOST. ADAPT. EXAP v ... v.

C(fu true ChllIJllg trinh NC

Tuy

• Chuang tfloh bao gam cac khai.

• Kh6i bao gam cae tu. vi dl}. NS Gl XlO YlS F60 M8, khai ll<l.y co 6 tlr.

• Tir gam rn9t dia chi va rnQt gia lri s6, vi dl}, XIO gam dia chi X va gia tri 10.

Clle fir duqc phan bi~t theo: - 56 hi¢u khai (con s6 ho~c N 1 v ... v.).

- Ma G (Gl,G2,G3 v ... v.). con dugc gQi \a chuc oang chuan bi, thuemg the hi~n d.C \¢nh hloh hQc.

- L~nh eong ngh¢ (F. S. T),

- Ma M (M3, M6 .. ,). con dUQ'e gQi la ehue nang

bo

Cae dia chi thuang duqc Slt dl,lng tmng lap trlnh NC, rJuqe gan bOi cae chl1 crii theo tieu chu<ln DIN 66025 (tuO'ng Juang ISO 6983) dUQ'c li~t ke trung bang 3.1. MIT G va cac

rna

uuqc

Bimg 3.} : Cae dia chi dUIlc su dl,lng trong I~p tdnh NC

£I!a chi _{Y nghia} £Ita chi _{Y nghia}

A Quay quanh tr~c X M Chue nang bo sung B Quay quanh tr~e Y N S6 kh61 (block)

C Quay quanh tr~c Z 0 -

D SU hi~u chlnh dao P Dich chuyen Ian 3 song song X E Llfqng ch<;iy dao Ian hai Q Dich chuyen Ian 3 song song Y F Lw;mg ch9y dao _{R Dich chuyen nhanh theo hlJemg Z} ho~c

G Chuc nang chuan bi

Dich chuyen Ian 3 song song Z

H - S T6c d6 tn,Jc chfnh

I Tham s6 nQi suy hoac T Dl,lng cl,l

blfaC ren song song X U Dich chuyen Ian 2 song song trl,lc X

J Tham so nQi suy hoac V D'!ch chuyen Ian 2 song song trl,lc Y blfaC ren song song Y W Dich chuyen Ian 2 song song trl,lc Z K Tham s6 nQi suy ho~c X Chuyen dich thea huang t11,Jc X

blJGe ren song song Z Y Chuyen dich thea huang trl,lc Y

L - Z Chuyen dich thea huang truc Z

- -

-

Bang 3 2· Mil G thea DI:"I 66025

MaG Y nghia

GOO N¢i suy chq.y thang nhanh

GOI N¢i suy an dao ch<;ly thJng

G02 N¢i suy eh~y vong, thea ehieu kim dong h6 (eW) G03 N¢i suy eh,w vong, nguqe chieu kim dong h6 (CeW) G04 Thai giaD duy lrl

Tiii) bdng 3.2

MaG

Y

GlO Chuy~n d¢ng thAng, djnh vj nhanh trang h¢ tQa d¢ ClJ"C

Gil N¢i suy ch~y thing lrong tQa d¢ ClJ"C

GI2 N¢i suy ch'.lY vang trong tQa do clJ"c, thea CW

Gil N¢i suy ch~y vang trong tQa dQ ClJ"c, C'CW

G20/G21 Chuy~n don vi do sang inch/ milimet G22 GQi chuang trlnh can

G23 Phrln chuang trlnh l~p l<;ti

G24 L¢nh nhay vo dicu ki¢n G25 Chuytin d¢ng tOi di~·m chuin G26 Chuy~n d<)ng toi vi [r£ thay dao G40 Tat l¢nh bi! daa

G41/G42 Bu. ban kfnh tniil Bu. ban kinh phai (CRC)

G50/G51 Mieu ta quy d~o cuoi cimg bat dau/ket thuc (cha ti¢n)

G5l Huy bi) d~ch chuyen di~m khong

G54 D\ch chuy~n di~m khong ( thea h¢ ta~ d¢ tuy~t doi)

G55 Djch chuy6'n di~m khong tuy¢t d6i Ian 1

G56 Djch chuy~n di~m kh6ng tuy¢t doi bin 2

G57 Dich chuyen di~m khOng tuy¢t d6i hln 3

G58 D~ch chuyen diem kh6ng tuy¢t doi ian 4 G59 Djch chuyen diem khong , gia so

G90 Do thea tuy¢t d6i

G91 Do thea gia so G92 Gioi h~n toc d¢ quay

G94 Toc dQ an dao tfnh bAng mm/phut

G95 Toc d¢ an dao tfnh hang mmfl yang quay

G96 Toc d¢ cat kh6ng d6i bWtat (chi cha ti~n)

ng

..

B.i 33 C' " , h' o sung

MaM

Y

MOO Dlrng chuang trlnh (vi dl;l, M do kiem chi tiet)

M02 Ket thuc chU"ang {dnh

MOl Dong m~ch tr~c chinh, quay theo chi€u kim dong h6

M04 Dong m~ch trl}.c chlnh, quay ngU"qc chieu kim dong ho

Tic!} hdn<.; 3,3

-~- -

-- -

j\L) G Y nghl<l

~106 "J'hay dao dil dlTqc chuan bi san (khil. nang l~p truac)

M07 Bat bam ch.n him mat 56 I

I

~108 B~I bum chIit Jam mal so 2

M09 Tilt bO'm chiit HUl1 mat

\-130 Ket thuc l~p trlnh

M80 Huy tat ca cac <l6i xUTig

M81 Doi xUTig thea tfl,lC Y

M82 D6i xUTig thea tfl:IC X

M83 Thay d6i diu to<:l dQ tfl,lC Z

M84 Doi Xlmg qua tfl:lC Xva Y

MRS D6i xUTig qua tfl}C Y va doi dau tfl,lC Z

M86 Doi xUTig qua tfl}C Y va doi dau tfl,lC Z

M99 Ket thuc chlTO'ng trlnh con

3.4.3.3. Vi

d1,l ve

NC

<,

1 - - '

"-, r--

,

",

-1-

•

-+---

M0t vi d\l v~ l(IP trlnh NC cho chi tiet 6 hlnh 3.32 duqc thl!c hi~n v6i b(' di~u khien MiliPlus, voi cae dieu ki~n sau:

+ Kich {hune phoi: 150x 150x 15 + St'f dl,mg cae dl,mg cl,l gia eong sau: - \'1: dao phay m<"!.t dau <DIS

- 1'2: dao phay ngon cl> 10 - T3: mGt khoan cl>4 - T4: mGi khoan cl>5

+ Gii thiet Iii phoi da duqc phay pM ; cae \6 d6u bfing nhau va hang ~5. Chuang trlnh NC co th~ vie'l nhl1 sau: