Couple Okuma questions for the Okuma gurus

[T_MALENA]

So I have a few Okumas here. Have a couple of things I'd like to try but I'm stumped. So I figured this is the best place to ask. There is plenty of knowledge to draw from.

 

All are on a LB4000 osp200 & osp300.

1.  I'd like to somehow write to/ change the PLC status. Is that possible?

2.  Anyone know where to buy offset tooling?  Im trying to turn a 24" OD, the machine is stock at 18" or so. I'm looking to buy a 3" offset OD turn tool.

3.  anyone know how to use the w-axis as a programmable axis. I pulled the tail stock off & have a Dorian gang tool setup I'd like to get working. 

4. anyone interested in the above tailstock? have 2 to sell. Its the tailstock body/casting only - not the saddle bed where ball screw is mounted. The thing weighs 200# +.

 

This is on a production machine so I do have some issues with being able to break in & test. That's why some of this is taking quite some tome to prove out.  But any experience / suggestions would be awesome.

 

Thanks in advance.

[T_MALENA]

Well after I posted this I realized it prob should have been in the Machining, Tooling forum.  Could a mod move it, please?  I didn't see a option for me to move it.

[Guest]

Done

[Greg Williams]

I am no guru but from what I understand

 

I'd like to somehow write to/ change the PLC status. Is that possible? ---- To do this the machine needs to be run in "Adjust" mode. this is not recommended

 

anyone know how to use the w-axis as a programmable axis. I pulled the tail stock off & have a Dorian gang tool setup I'd like to get working. ----------------- I think it will need to register the pressure switch for the tailstock, not sure how you can do that, maybe there is an interlock code somewhere

 

 

M157            (CENTER INTERLOCK RELEASE OFF) (Must be at start of program   to allow spindle to turn on)

G00X500       (MOVE TURRET TO X AXIS LIMIT)                                     

(START OF PROGRAM)

G195SP=1     (TAILSTOCK POS 1)

M56               (APROACH)

 

(BLAH)

(BLAH)

(BLAH)

(BLAH)

 

M55 (RETRACT)

M156 (CENTER INTERLOCK RELEASE ON)

(PROGRAM END)

 

M847 (GO HOME)

M02

[Orvie]

G13

(PROGRAMMED BY - [email protected])

(PROGRAM - O0402)

(DATE - JAN.-25-16)

(TIME - 10:53)

(DRAWING NUMBER - 2KT113397SK1)

(DRAWING REV - 0)

(OPERATION - 2ND STRESS)

(MACHINE - OKUMA LB4000II EXMY C2000)

(ITEM NUMBER - SK1)

(PROVEN BY - )

(****************************************)

VCHSW=0 (TAILSTOCK OPERATION MODE OFF)

(****************************************)

P1 (SYNC A&B WORK OFFSETS)

IF [VORD[0011] EQ 0] NPS1 (JUMP PAST THE ALARM)

VUACM[1]='A INDIV ON!'

VDOUT[992]=1

NPS1 (JUMP PAST ALARM)

V1=VSZOZ (TRANSFER ZERO SET INTO VARIABLE 1)

P3

P5 M01 (OP STOP & SYNC)

(****************************************)

DEF WORK

PAINTT LF, LC, [-671,0], [51,51], [678,0]

PAINTT LF, LC, [0,0], [0,0], [0,0], 0

END

DRAW

(****************************************)

N1 P100 (ENGAGE TAILSTOCK)

VCHSW=1 (ACTIVATE TAILSTOCK OPERATION MODE)

VTSWP[1]=VSZOZ-.4 (TAILSTOCK POSITION)

VTSAP[1]=VSZOZ+.7 (TAILSTOCK APPROACH)

VTSRT[1]=VSZOZ+2.5 (TAILSTOCK RETRACT)

G195 SP=1

M56 (ADVANCE TAILSTOCK)

P101 M01

(****************************************)

N2 P200 (RELEASE STEADY REST)

P201 M00 (VISUAL CHECK)

(****************************************)

N3 P300 (FINISH 4.179 STEADY REST) M01

M103 (CHIP CONVEYOR ON)

T11 (TOOL - 11 OFFSET - 11)

G0 X100.

Z1. M05

G50 S650

(OPERATION TYPE) VTLIN[11]=1

[Orvie]

(PROGRAMMED BY - [email protected])

(PROGRAM - TAILTEST)

(DATE - OCT.-09-15)

(TIME - 06:23)

(DRAWING NUMBER - TAILTEST)

(DRAWING REV - TAILSTOCK)

(OPERATION - TEST)

(MACHINE - OKUMA LB3000)

(ITEM NUMBER - P000)

(PROVEN BY - )

VCHSW=0

(****************************************)

N23 (POSITION TAILSTOCK Z5.0)

VCHSW=1 (ACTIVATE TAILSTOCK OPERATION MODE)

VTSWP[2]=VZOFZ-.5 (TAILSTOCK POSITION)

VTSAP[2]=VZOFZ+.7 (TAILSTOCK APPROACH)

VTSRT[2]=VZOFZ+5.0 (RETRACT POSITION)

G195 SP=2

M55 (TAILSTOCK POSITION)

M00

(****************************************)

N24 (ENGAGE TAILSTOCK)

VCHSW=1 (ACTIVATE TAILSTOCK OPERATION MODE)

VTSWP[1]=VZOFZ-.5 (TAILSTOCK POSITION)

VTSAP[1]=VZOFZ+.7 (TAILSTOCK APPROACH)

VTSRT[1]=VZOFZ+2.5 (TAILSTOCK RETRACT)

G195 SP=1

M56 (ADVANCE TAILSTOCK)

M01

(****************************************)

N25 (POSITION TAILSTOCK Z10.0)

VCHSW=1 (ACTIVATE TAILSTOCK OPERATION MODE)

VTSWP[3]=VZOFZ-.5 (TAILSTOCK POSITION)

VTSAP[3]=VZOFZ+.7 (TAILSTOCK APPROACH)

VTSRT[3]=VZOFZ+10. (RETRACT POSITION)

G195 SP=3

M55 (TAILSTOCK POSITION)

M01

M00

(****************************************)

N26 (SEND TAILSTOCK HOME)

VCHSW=1 (ACTIVATE TAILSTOCK OPERATION MODE)

M847 (TAILSTOCK HOME)

M01

M02

[T_MALENA]

Thanks Guys.

 

Greg, I currently switch the PLC status in "adjust" mode.  I'd like to do it by sending a code from the program, or call a sub that'll force on/off different I/o in the PLC side.

As far as the tailstock...I do believe there is something that the pressure has to be met/set to allow the tail stock to be in position & then the CNC allowed to run a program. I'll try a section of Orvie's program and see what happens.