TURRET TOE100

I am upgrading a lathe with ANILAM control with DC servos. On that side I have no problem. The problem is with the turret for the automatic tool change. This turret is manufactured by BARUFFALDI and model TOE 100. The tool change is completely electric and the motor is 3-phase AC. It has a 4-bit absolute encoder plus a parity signal and a strobe signal. I have consulted all the components for managing lathe turrets, including the carousel, but due to the way it operates, none of them fit its operation. For what reason? All tool changes include the change of motor rotation direction, this is done by the carousel but automatically and only when the motor initially rotates forward, then if the time of the carousel pin is programmed.N.rev-pulse it will rotate in the opposite direction, but when the initial movement is in reverse it does not change direction subsequently. I understand that this function is for some type of ATC on Boxford and Emco lathes. Another problem is that the strobe pin is usually used to indicate that the position feedback signal is valid. In this turret, this encoder output does the same but in the operation of the turret it is used differently, it is not used to indicate the valid position of the selected tool, but to indicate when the strobe signal falling, but from the previous tool to the one selected, for example from T1 to T3, what is used is when the stobe signal of the tool T2 is falling and if the change is from T1 to T11, the turret rotates in the opposite direction along the smaller path , and what is used is the falling side of the strobe signal from tool T12. And what is the use given to this signal in the operation of this turret, when the drop in the strobe signal of the tool previous to the selected one is detected, this activates a solenoid that drives a cam, which initially lowers to the edge of the axis that rotates the turret and later when the axis continues rotating that cam falls into a slot inside the axis, this slot corresponds to the selector tool, which causes this cam to block a crown and in turn when completely lowered by The action of the solenoid activates a proximity sensor that changes direction of the motor rotation in the opposite direction to the initial rotation, this causes the motor to push a piece forward blocking the turret and also activates the signal from a proximity sensor indicating that The turret is locked and this in turn stops the motor and activates the magnetic brake on the turret motor.In this video you can see how the TOE 100 turret is unlocked. Initially the motor rotates an internal crown that causes the crown locking proximity sensor to be deactivated, this can be seen at the top, then it looks like The piece that locks the turret moves backwards, unlocking it and then you can see how the axis that rotates the turret begins to rotate, you initially see that the edge of the turret axis appears and then a slot appears that corresponds to the position correctness of each tool. The blockage was already explained previously.

These photos show the turret locked and unlocked as well as the soleinoid deactivated and activated.     

 


 

 

Yes.

Hello COFHAL,

i am really glad to found your topic. I hope i have the same turret, just one size bigger. I think it could be a TOE120.
Sadly i don’t have a Manual, Schematic, Spec sheet- to be honest it don’t even have a nameplate. i saved it from a beatiful GRAZIANO lathe maybe from the early 1990's? Anyway the machine was scraped with a crane i just could remount the turret in the last minute...

I try to give it a second Life with LinuxCNC, Your Hal, videos and the flow chart are great and a big step forward! Do you have more documentation that you could share? that would be tremendous!




Greetings
Tom

They still in business and seem to have there own dedicated controller.

www.baruffaldi.it/wp-content/uploads/201...TB-TBMA-100-2016.pdf

Thanks for your fast response, you are right. I also searched on their site for information. Thats why i belive i have the size 120.

But of course they only Show the new products on the webside. And all types are descriped with some type of pneumatic piston.
But my turret hadn't an air hose connected to the machine when i unscrewed it. Just electrical wires. And i think COFAL also just talked about solenoids, elektrical sensors and motors?

While my tool change is not sweet as those I have the same issue.
i will replace the 3 phase motor with a stepper. 
The rest is just turning the motor on to rotate to the next tool stop then reverse the motor to lock it. 

 

Did you email mail them and ask for a wiring diagram and a parts diagramm?

Your turret looks nice too.

No i emailed not yet, will try it next week. I just desided this weekend to get it back to life. (hopefully).

But my last ask for documents was for my lathe and they called 300€ just for PDF's -thats out of reavh for me. :/ I think they want to sell new models and not repair the old ones...

I hope Baruffaldi is more hobbirstfriendly!

I wasent going to sign up to download it
So here

www.scribd.com/document/629165548/Baruff...enance-Manual-Copiar