Z axis Ballscrew vibrating bad

walesham · May 11, 2009

On my Mazak cybertech turn,4500 m,MT-pro,the ballscrew is vibrating bad in z axis.This only occurs when the turret rapids back toward the tailstock.When rapiding toward the chuck it sounds fine.
Could this be a backlash problem? :angry:

wippin' boy · May 12, 2009

probly just thrust bearings

set up an indicator
in 1 thou per click on pulse wheel
if it takes more than 4 or 5 clicks to change directions you got something coming loose

Bobw · May 12, 2009

Vibration in one direction, I'll agree with Whippin' Boy, he's usually right.

Had a little acuslide, no warning, ran Z- fine, coming back Z+ hopped the damn machine right off the floor. Powered it down, Z- turned fine, I could barely move the screw by hand in Z+, and when it did turn, it didn't feel pretty.

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Z axis Ballscrew vibrating bad

walesham

Plastic

wippin' boy

Diamond

Bobw

Diamond

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