Need Help!- Barfeed programming

[wganders]

To all,

The company I work for is getting a used Lynx 200L with a LNS Eco Loader barfeed and I'm suppose to program it. Does anyone know how to program the barfeeder for this machine? I'd like a subprogram for part-off and bar feed, along with a subprogram for loading a new bar. Am I missing anything?

It is equipped with a Fanuc 21t control.

Thanks in advance!

Wganders

[dcoupar]

Replied in Doosan forum.

[Get lucky]

This is the program that I use for my machine

BAR FEED MACRO

G65P9002A.3B1.S.03
(B=BAR DIA#2)
(S=STOCK TO REMOVE FROM END#19)
(A=AMOUNT OFF CENTER#1)


%
O9002
T0200
G0X[#2+#1]Z#19T0202
M69
G4U.5
M10
G4U.5
M68
G28U0W0T0200
M99



The problem is i have not figured out how to load a new bar with in the program. We always stop put a new bar in and start at the top of the program again

If this helps great if you figure out how to load a bar in the program please let me know

Kyle

[g-codeguy]

Originally Posted by Get lucky This is the program that I use for my machine BAR FEED MACRO G65P9002A.3B1.S.03 (B=BAR DIA#2) (S=STOCK TO REMOVE FROM END#19) (A=AMOUNT OFF CENTER#1) % O9002 T0200 G0X[#2+#1]Z#19T0202 M69 G4U.5 M10 G4U.5 M68 G28U0W0T0200 M99 The problem is i have not figured out how to load a new bar with in the program. We always stop put a new bar in and start at the top of the program again If this helps great if you figure out how to load a bar in the program please let me know Kyle

The problem is you don't have a subprogram for when the barfeeder sees the end of the bar. This is what our LNS QUICK LOAD barfeed on a Nakamura TW-20 uses.

/M98 P8000

Here is how I program ours. (M191 is a subroutine.)

T #20= FACING TOOL
X #24= X-AXIS
M #13= MAX. RPM
S #19= SFM
F #9= FEEDRATE

T0101 BARSTOP
T0202 80 DEG. PROFILE TOOL CNMG-432
*

:9018 (BARSTOP)

N100M191
/M98P8000
T0101M5
X0Z.5M9
Z.2
M11
M17
G1G98Z.025F50.
G4U3.
M10
G4U1.
G0G28W0
M99

:8000 (NEW BAR)

G0G28W0M9 (BARSTOP)
T0101M5
X0
M11
M58 this is the code used by the barfeed
Z-.07
M58
G4U2.
M10
G4U1.
G0G28W0S1000M3
M1

T#20M8 (FACE)
S[3.82*#19/#24]M3
G99X#24Z.5
G50S#13
G96S#19
Z-.1
G1X.3F#9
X-.065F.004
G28G97W0S1000
M99
%

And it is called by

G65P9018X1.05F.01S900M4000T202

for 1.000 material, although I am considering adding the .05 in the subprogram, and using the stock size only in the G65 call. Problem is I'd have a ton of programs to modify.

These are my programs for the SMW SPACE SAVER 2003 on our LYNX lathes. M91 and M92 are subroutines.

T #20= FACING TOOL
X #24= X-AXIS
M #13= MAX. RPM
S #19= SFM
F #9= FEEDRATE


T0101 BARSTOP
T0202 80 DEG. PROFILE TOOL
*

:9018 (BARSTOP PROGRAM)

M91 (BARSTOP OLD BAR)
/2M98P8000
T0101M9
X0Z.03M5
M69
M51 this is the code used by the barfeed
M68
G4U.1
M92
M99

:8000 (END OF BAR)

IF[#20LT101]GOTO70
M91 (BARSTOP NEW BAR)
T0101M5
M69
M51
X0Z-.07M9
G4U4.
M51
M68
W.5S1000M3
M91
M1

M91 (FACE OFF BAR END)
T#20S[3.82*#19/#24]M63
X#24Z-.1
G50S#13
G96S#19
G1X.2F#9
X-.065F.004
G0G97W.5S1500
M91
GOTO71
N70#3000=7 (NO T-CODE)
N71M99
%

I dress the new bar in hopes of not losing the first part. Then the new bar gets re-stopped. It is called in the same manner as for the Nakamura. I try to keep everything the same for all the lathes as much as I can.

I don't quite understand exactly how the 2 works in /2M98P8000, but it is how the manufacturer sets up the barfeed.

[beege]

IIRC,

/ is block delete
It's really /1, but the 1 is a default parameter for "/". If a machine tool builders want to, they can have up to 9 block delete switches:
/2
/3
/4 etc.

Each /# signifies a different switch that the operator turns on/off

[g-codeguy]

Thanks Beege. I didn't know that about block skips. Sounds like the MB has to build the /2 into the control in advance. Guess they would have to know what barfeeder was going on the machine? Or do they build a couple /#'s in just to cover these situations?

[beege]

Originally Posted by g-codeguy Thanks Beege. I didn't know that about block skips. Sounds like the MB has to build the /2 into the control in advance. Guess they would have to know what barfeeder was going on the machine? Or do they build a couple /#'s in just to cover these situations?

I've never seen more than 1 block delete switch on a machine. I've only seen references to it in my manuals. I believe it has to be built into the PLC and hard wired to be of any use. I'd love to see how anyone has modified their machine to include multiple block delete switches.

So to answer...

Don't know the answer to the first or second questions

Brian

[g-codeguy]

Thanks anyway. I still know more today than I did yesterday.

[Get lucky]

Originally Posted by g-codeguy The problem is you don't have a subprogram for when the barfeeder sees the end of the bar. This is what our LNS QUICK LOAD barfeed on a Nakamura TW-20 uses. /M98 P8000 Here is how I program ours. (M191 is a subroutine.) T #20= FACING TOOL X #24= X-AXIS M #13= MAX. RPM S #19= SFM F #9= FEEDRATE T0101 BARSTOP T0202 80 DEG. PROFILE TOOL CNMG-432 * :9018 (BARSTOP) N100M191 /M98P8000 T0101M5 X0Z.5M9 Z.2 M11 M17 G1G98Z.025F50. G4U3. M10 G4U1. G0G28W0 M99 :8000 (NEW BAR) G0G28W0M9 (BARSTOP) T0101M5 X0 M11 M58 this is the code used by the barfeed Z-.07 M58 G4U2. M10 G4U1. G0G28W0S1000M3 M1 T#20M8 (FACE) S[3.82*#19/#24]M3 G99X#24Z.5 G50S#13 G96S#19 Z-.1 G1X.3F#9 X-.065F.004 G28G97W0S1000 M99 % And it is called by G65P9018X1.05F.01S900M4000T202 for 1.000 material, although I am considering adding the .05 in the subprogram, and using the stock size only in the G65 call. Problem is I'd have a ton of programs to modify. These are my programs for the SMW SPACE SAVER 2003 on our LYNX lathes. M91 and M92 are subroutines. T #20= FACING TOOL X #24= X-AXIS M #13= MAX. RPM S #19= SFM F #9= FEEDRATE T0101 BARSTOP T0202 80 DEG. PROFILE TOOL * :9018 (BARSTOP PROGRAM) M91 (BARSTOP OLD BAR) /2M98P8000 T0101M9 X0Z.03M5 M69 M51 this is the code used by the barfeed M68 G4U.1 M92 M99 :8000 (END OF BAR) IF[#20LT101]GOTO70 M91 (BARSTOP NEW BAR) T0101M5 M69 M51 X0Z-.07M9 G4U4. M51 M68 W.5S1000M3 M91 M1 M91 (FACE OFF BAR END) T#20S[3.82*#19/#24]M63 X#24Z-.1 G50S#13 G96S#19 G1X.2F#9 X-.065F.004 G0G97W.5S1500 M91 GOTO71 N70#3000=7 (NO T-CODE) N71M99 % I dress the new bar in hopes of not losing the first part. Then the new bar gets re-stopped. It is called in the same manner as for the Nakamura. I try to keep everything the same for all the lathes as much as I can. I don't quite understand exactly how the 2 works in /2M98P8000, but it is how the manufacturer sets up the barfeed.

When I took this job I was learning on the fly with barfeeders and when it would get to the end of the bar it would just alram out and stop, not run the sub program so I just deleted it from the program and I would really like to make it work.

[g-codeguy]

Get Lucky. You don't mention the brand and model of your barfeed. Do you have a manual for it? Have you tried calling the manufacturer? The manual should have a sample program. If you don't have a manual, the manufacturer should be able to fax you a sample barfeed subprogram.

If you happen to have the same make and model as we have, then I can help you. Otherwise I would have to call the manufacturer myself to get the needed information.

I agree. You need to get it working properly.

I'll help if I can, but I need a lot more information than I have at the moment.

[Get lucky]

LNS eco loader yes I do have a manual but not a great deal a detail in it

[g-codeguy]

Originally Posted by Get lucky LNS eco loader yes I do have a manual but not a great deal a detail in it

Make and model of lathe?