Hello to all. I have a little problem (I hope it's a little one) with the claping on the turret of the Mazak QT20.
The clamping works with a hydropneumatic system and by looking at it, it has some amplificators of force on the back of the charriot. The problem is, the turret won't unclamp sometimes, and if it does it takes a little while. Then when it clamps again sometimes I can see it's not a soft and natural clamping. We checked and replaced the o-rings on the turrent side, and I checked the electrovalves on the back. The valves seemed to be a little sticky on the return stroke but I cleaned and lubricate them and by hand the worked ok. I don't know if that could cause the erratic problem. Another thing that happens when the turret doesn't want to unclamp, is that the air relief on the electrovalve keeps blowing until I turn off the machine or until I press the clamp button again. (When this happens the turret doesn't even want to unclamp). I can't find any docs about the circuit, and I don't have schematics about the hydropneumatic circuit on the manuals I have. So I came to the only place I know I will have the best answers :) Thank as always! -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
