Okuma Multis Hobbing a worm gear

[rrichard]

Hello everyone,

    We are trying to program cutting a small worm gear on a Multis. Only I can't find out how to run the M tool @ 260 rpms and the chuck or C axis @ 13 rpms together. We tried an M153 but must be using it wrong or something else.

   Thanks for any feed backs.

Thanks

Russell

[htm01]

we did this on a Mazak Integrex and hobbing is an option, are you sure you have it

[rrichard]

Well this is a straight in plunge, reseller said we didn't need the option for this one. Just turn the hobb and stock at the correct ratio?

[htm01]

for us the option sync's the spindle and chuck and feedrate

[YoDoug®]

You need the hobbing function to be able to do this. Without the hobbing function the slight error of spindle speed mismatch will eventually turn your straight tooth gear into a spiral tooth gear. The hobbing function also gives you emergency retract stop button.

 

If you cannot get the option now I would look at a full form type cutter. We have used good results. 

[rrichard]

Thank you fellows for the feed back, suppose YoDoug we'll have to get it, although the one we doing now is an even 20 tooth and we did get an Ash Gear RH hob .2618 AXCP?