Re: [CAD_CAM_EDM_DRO] Cool Worm Gear

I wish some one would draw up both of these methods of generating these worms. No one seems to be explaining it very well.

Smoke



I have seen a method for cutting worm gears that looked real interesting.
The gear is held on the lathe carriage in a manner that you can index it for
each tooth. The gear is heldhorizontal so it's centerline is inline with the
center of the spindle. A boring bar is paced between centers with a tool
ground to the worm profile. The gear is fed across this tool using a
threading operation that is the pitch of the worm, using the cross slide to
set the cutting depth. This generates the correct tooth profile. I hope this
explination is good enough to understand, if not I'll have to try and draw
it up.


-- Greg Nuspel





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