Turret Realignment 2000SY

[JHECNC]

Does anyone have any information on how to realign the turret on a Puma 2000SY.
We had a minor collision and the turret is now slightly out.m/c is running ok..would like it perfect though

Martin

[CHAD LAWSON]

the puma lathes are perhaps the easiest lathes on the market to realign. I have not done one in propably a year so i hope i tell you this correct. if i am off on anything it would only be a keep relay as i believe you will use K5.4. any how turn on your pramater write enable then if you have a lot of heavy tools to one side you will need to hold the turret in place by hand while you change keep relay 5.4. this keep relay is installed in the ladder as a way to manually clamp and unclamp the turret. while it is unclamped indicate the turret into place. i believe the books allows .003 tolerance however i prefer less as it makes programmers life simpler. once you get it into place by manual turning it by hand into place then clamp the turret. it should clamp claen and not move in ccw or cw direction if you have the gears lined up properly. the only thing i would check is your keep relay list as i am quite sure that it is k5.4 and often people change k5.5 which tells the machine if it has a turret or not. these are the only machines i have that you do not even have to break a bolt loose to align turret. if you get it clamping good and can not find a spot on the clamp ring that allows proper alignment then you may have to go farther and let me know if it comes to that and i can address that to. i wrote the ladder for one of doosans new automated inverted lathes for the former automation group in detroit so i have become quite familar with these machines.

[underthetire]

I've done some Daewoo's in the past. And I can hardly believe any lathe would not have a curvit coupling in it now days. ANY coupling would require you to loosen bolts and move the coupling back in to position using leverage of some sort. The servo alignment is strictly for smooth clamping of the coupling after the mechanical is indicated back in.

[CHAD LAWSON]

yes they do have a curvic coupling in them however 90% of the time since the turrets our pinned you can realign using the keep relay. of course 90% of our problems occur due to an operator indexing the turret into the spindle not running the turret into a moving spindle. I always try to realign it first by moving it on the curvic coupling because often you can tear the mechanical link apart to find the adjustment needed done elsewhere.

[JHECNC]

Thanks for the info but I don't think that I have explained correctly.
The operator programmed the parting blade to go to part off position and then to bring the B-axis in which has the parts catcher on but instead of a "B-385 M10" in went a "Z-385 M10" so that the parting blade hit the chuck (although not at rapid) and the machine bombed out.The turret is now at a slight angle so that when drilling,the drill bit is not horizontal.I suspect that some bolts may have to be loosened somewhere to allow for this adjustment.Any ideas ?

Martin

[meelian]

please use your dial indicator check turret's parallelism of "X" movement direction ,then spin the turret 180degree, check the "parallelism of "X" direction movement again,the accuracy tolerance is "0.001~0.05", if the accuracy exceed the toerance,please change the pin in the trurret,changing the pin by seeing the partlist book

[meelian]

your machine have power milling function,remember not to apart the power
milling's spindle!

[Dr Dug]

On the Doosan machines there are dowel pins between the turret and curvic coupling.
There are 4 tapered holes and only 2 pins used. The two unused holes are "Master Pin" holes. So, in theory, you can re-align the turret by inserting two new pins in the Master Pin holes.

If you know you will crash the turret, I'd suggest that you remove the two pins that are in the machine. This will allow the turret to move when crashed. If they are not removed then something else "Will" move. Allowing the turret to move during a crash makes the crash less severe. Now you can take the two pins you removed, loosen the turret bolts for the curvic coupling and align the turret with any of the 4 tapered holes. This works; I've done it many times.

On turrets that the pins were left in and the machine is crashed; the pins bend and often the saddle moves; making the alignment much more difficult.

Turret should be clamped. Remove the "Numbers" plate. Loosen the ring of bolts and remove the two taper pins. the turret should now move CW and CCW. Sweep the X axis and/or sweep X0 with a co-ax indicator. Tighten the ring of bolts. Choose to install the taper pins again or leave out. (Taper pins holes ligned up? May need re-reaming (Check EVERYTHING first). Reinstall Numbers plate.

Also, buy a co-ax indicator. It is the only way to be sure you get back to X0, Y0.