Hi I think mechanical measure can not be use because limits of on torque will be digital and it should be part of NC program that can be program. That digital limits will be part of program and where ever cutting tool start having problem with cutting material and as a result of which pressure of axial force increase up to the limits that will break the tool, I think it be good idea to stop feeding axis and even stop spindle and move to the ERROR mode. Aram
> On Tuesday 12 February 2008 04:55, W. Jacobs wrote: >> aram, >> It would be easier to measure current to the motor as this would be what >> creates the torque. Current measurement is easy. >> If you want to truly measure the torque, it is done either with a strain >> gauge on the shaft or with a spring coupled drive and measure the >> deflection of the spring. Either way, you need a pair of slip rings to >> get the information to the outside world. These are noisy and will be >> hard to use. >> >> bill >> >> [EMAIL PROTECTED] wrote: >> > Hi >> > Can you measure torque on AC servo motor? >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Microsoft >> Defy all challenges. Microsoft(R) Visual Studio 2008. >> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users > Hi Guys, > another way of measuring torque involves 2 toothed rings and hall effect > pick-ups. Ensure that the rings are rigidly fixed to the shaft and you > will > find that you will get a varying phase difference between the output of > your > two pick-ups as the shaft twists under torque loading. No noisy slip > rings :-) . > > Cheers, Geoff. > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
