Tool Eye Alarm Mazak QT15

[rockfish]

Look forward to many dumb questions in the near future........as I've started to monkey around with this machine. I tried to get the tool eye to come down to see if I could set up a tool, and I'm getting a #235 alarm.
The book says something about a tailstock sensor, which doesn't make any sense to me.
The tailstock spindle is fully retracted and the tailstock body is all the way back out of the way.

Also.....the plate on the front of the turret is missing telling which tool is up. Shouldn't it tell me somewhere on the screen where I'm at ???

The more I look at this machine, the dumber I feel. The books are COMPLETELY useless.





Frank

 

[cnctoolcat]

Frank,

The tailstock quill has 2 sensors, located inside the hinged door on the front of the tailbody. The sensors are activated by adjustable "buttons", that slide on the small black shaft connected to the front of the quill.

Make sure the rear, or right-most sensor, is activated by it's button, when the quill is all the way back. If not, loosen the set screw in the button (I replace the tiny set screws with standard allen-head bolts), and slide the button on the shaft until it activates the rearward sensor.

With that being said, your rear sensor could be bad. If so, you can "hotwire" the sensor by connecting the two wires going to it.

The control screen will show which tool is in the cutting position, after you describe the tool in the TOOL DATA 2 page, and set the tool using the tool eye in X and Z.

Keep the questions coming!

Greg

 

[Speedie]

Mazak book are useless as far as basic operation goes. You need to gt an experienced guy in there to help you out of the gate.

 

[rockfish]

I ran the tailstock spindle in and out and when it get's to the farthest point of retract, it is lighting up the sensor........so I have no idea what's going on at this point. Sensor appears to be working.



Frank

 

[cnctoolcat]

Frank,

Make sure the front, or leftmost sensor, is off when the quill is retracted. Both sensors on at the same time will give an alarm.

The tailbody itself has sensors for forward and retract. The forward sensor is activated when the plunger is pushed in by the stop you set on the tailbody guidway. The retract plunger is at the rear of the tailbody. It may not be on, or the sensor may be bad??

Sometimes you have to help the tooleye up, or down, as it can get sticky over time. Just make sure when you are helping it, to ONLY HELP in the direction you have activated with the control. The tooleye is raised/lowered by a small electric motor with gear reducer.

Also, maybe you have to have a tool described in TOOL DATA 2 before the tooleye can come down???

An OD turning tool would be GNL OUT, 93 deg, 80 deg, .XXX radius, and arrow for spindle direction.

 

[SMT]

Here's something along those lines, but opposite. . .

In my sqt18 I tried to code the tail body forward with M31 and it alarmed out (can't remember the number) Looked up the alarm and it said something along the lines of "Can't extend tailstock because tool eye is down"

Now, my tool eye was all the way up. Is there a limit switch that tells the control the tool eye is up or down?

Hit reset, MDI and then M31 and it works fine for advance and retract.

Manually program advance or retract of the tail stock and I get that alarm.

 

[wippin' boy]

there are 2 sets of signals
tailbody and tail quill, both have to be in "reverse" position
for refresher what is machine, and what control are we working with?
what sort of tailstock, my old 15/18's had plungers on body that had a tendancy to push the stop dog back and not fully activate switch which is in body.

 

[rockfish]

Whippin,

The machine is a Quick Turn 15, circa 1991, with T32-2 Mazatrol control. It definitely has plungers on the front and rear of the tailstock.




Frank

 

[wippin' boy]

check that body switch
its behind a cover on the front of the body
that machine is a vintage i can help you a little with the diagnostics on the phone if you have an electrical book

 

[rockfish]

Ok....I'm past that problem. Now, I'm trying to move the turret toward the tool eye, and I fault out with a chuck barrier about 12" away from the tooleye. We erased all of the chuck jaw info..........so I'm not sure where it's getting it's info.



Frank

 

[wippin' boy]

There is probly some bad tool data that makes the machine think there is a big drill about to hit chuck

 

[wippin' boy]

One of the coders will see this soon that can help you
this really ain't my stuff
Sorry

 

[cnctoolcat]

Highlight the BARRIER CANCEL button below the monitor.

Contrary to popular opinion, my default is to use Barrier Cancel. Piss on all the PIA barrier alarms. Just be careful!!

What did you do to get past the TOOL EYE alarm???

 

[rockfish]

Greg,

I restarted the machine, homed it, brought the tailstock body forward and then all the way back once........then tried the tooleye and it worked.

So.......basically I haven't got a clue why it worked this time.





Frank

 

[rockfish]

Greg,

Are you saying that you don't plug in chuck jaw data and all that ???




Frank

 

[wippin' boy]

alot of them don't frank
that said
the barriers help but are not fool proof
there like any computer, junk in ..junk out
single block and rapid reduce are critical if your not using the barriers

 

[cnctoolcat]

Are you saying that you don't plug in chuck jaw data and all that ???

That's exactly what I'm saying. Chuck jaw data, tailstock data, all that...I just leave it all blank. And run with the Barrier Cancel button highlighted.

The dang barriers are just so hard to get right, so that you can actually work with the machine. Any tool in the turret, not just the one in the cutting position, can trip a barrier. Setting barriers can save your a$$, but they will cause you to lose your hair trying to get them right.

Buuuut, just like wippin' says, you got to slow rapids down to 10%, and single block your way through a program to prevent a wreck.

Annnnd, always do a Tool Path Check before running any program the first time. Learn how to interpret the tool path graphics. Mazatrol tool path graphics are some of the best, and can prevent 99% of your crashes. You can zoom in, single step, etc. to really see what the toolpaths are.

Graphics are your friend, my friend.

Greg

 

[wippin' boy]

So.......basically I haven't got a clue why it worked this time.

what you'll probly find is that the rear stop/switch ativator is a little wiggly and that if you leave the control switch in nuetral the body (hydraulic motor and chain system) has a tendency to "relaxe" away from the stop.
they have a dipshit plastic knob that i shitcanned and replace with a sockethead screw.
you'll get it
these 15 class machines are some of my guys favorites for compact metal movers.
they are balls out machines and can rip metal with the best of them.

 

[ricardo saul garcia]

272 índice de torreta excede el tiempo me podrian ayudar con esta alarma