Tap retract

[kendo]

is there a way to increase the retract rate in a tapping cycle?
on the Haas I used to run there was a parameter for this, the value entered was a multiplier, so If 2 was entered, the retract speed would be twice as fast

thanks for any help,
Kenny

[Superman]

Depends on which control your machine has
Which is ?????

I know the OSP E100 has fast retract, maybe the E10 as well, P200-- yes,
the 7000s and earier would not have it

Best to check with Okuma for final comfirmation. or your Data Card in the back of the machine
then if you have, then you can work out what parameters need setting to enable the function

[Algirdas]

Don't remember details. I'm sure, we use taping with fast retract on exhibitions. OSP U100M. I didn't knew, that could be problem with retract speed.
Check what taping cycle You use.

[kendo]

sorry, its osp u700m and osp u100m machines
and we use G284 cycle for tapping with a solid holder

[Superman]

U700M .... you sure ??? not a 700M or 7000M .... the last 2 ... pretty sure they do NOT have fast return tapping

OSP U100M .... yes, it does have fast un-threading, it has to be enabled in the parameters , no change to the program at all, I think you can also have sync. tapping happening on G84 as well.

Not at work, so I can't look up the numbers for you, sorry.......someone else ???

[kendo]

OK I probably got the U700M wrong
I'm at home with the U100M book next to me and I thought the other machine model read the same way
It must be a 700M, I know its not a 7000M

Thanks for setting me straight

The book I have for the U100M is the programming manual and it doesn't cover the parameters but I'll have access to all the books monday at work.

I appreciate the help - now I know where to look.
Kenny

[Superman]

Instead of using the book, why not use the disk, it has all the books in PDF form

Hard to remember, but I copied the section that has a "START.PDF" or similar to a folder on the PC hard drive, deleted the japanese stuff, sent a shortcut link to desktop from the START.PDF file and bingo you're away.

No, it not in the programming manual, maybe special functions #1 or #2

PS just gone to 2010 here, so happy new year

[kendo]

Thanks Supe,
I'll inquire about the disk monday
happy 2010 down under

[kendo]

I found the parameter, but it didnt work
I set it to 200% but there was no difference in the cycle time for 24 holes tapped .700 deep
could there be another setting or parameter canceling this out?
I also changed G84 to synchronous tapping with bit parameter #17
I also hit the "backup" after the changes

I didnt have much time on the machine today, tomorrow I want to watch closely the actual RPM and see what its topping out at.

Tapping rate is S600 F30.
Dont you think it would be able to reach 1200RPM as it travels from Z-.7 to R.1?

[christinandavid]

Hi,

Will spindle go from 600 to 1200rpm without having to change gear?
If current gear maxes at 600rpm maybe that will override the retract rate.

DP

[kendo]

Maintenance says there's no gears, but a low/hi range output by the spindle motor, I didn't find out what those ranges are yet

I re-set the parameter to 100% and watched the actual rpm in cycle, it topped out right at 600 with time to spare

When I set it back to 200%, the retract rpm topped out at 630
same thing when I set it to 150%

[Superman]

Try setting aN RPM above 630 and let the G-code start the spindle
then play with the retract speeds

G0 X0 Y0
S750
G56 H1 Z1.
G71 Z1.
G95 G284 Z-1. R0.5 F0.04 M53 ( pitch for a M6 tap )
X1. Y0.
X1. Y1.
X0. Y1.
G80 G94
M5
M9
G30 P1