[MCR-B II]

Hi everybody

6 points moving but there is a noise coming. Is there an equipment to find noise source.

[Superman]

????? What are you talking about ?????

Are you talking about a lathe / mill ... /go kart ??

6 points on a star ???

Is there an equipment to find noise source.

Ears LOL
Depends on if by noise you mean electrical, mechanical ( sound or vibration etc)

[MCR-B II]

an axis of machining center. It has linear guides, bearings and ball screw. Different points.

[Superman]

You still are not supplying enough info
We cannot hear, see or touch your machine, you have to be very descriptive

What is your machine ( model and control ) ?
( then we picture what you are talking about.)

Next, tell us what the machine is doing, and ( in your opinion ) what event is happening
ie
turn spindle on CW, makes a grinding noise near taper end of spindle.
or
taking a cut with ØXX cutter 2/3 or 4 flute, full width cut, ZZ deep in aluminum, Sssss Fxxx, cut can be in any X/Y direction and makes a vibration noise near the spindle motor.

[MCR-B II]

thanks Superman

Sorry MX-60HB horizontal machining center
moving y axis up and down,there is a noise but bearings or linear guides or other
I mean an electronic equip. with laser or other.
loading is normal, no alarm or mesage. when G0 or fast moving noise. MAchined parts are ok no any dimension problem.

[Superman]

Y-axis, this is the 1 that takes the spindle weight and everything

Just to eliminate the absurd, have you checked that the guarding or pipework is not creating a noise vibrating ( metal to metal ).

Is the noise more apparent when jogging Y+ or Y-, slow-20% or fast-100%

Can you turn the leadscrew by hand with power OFF ? If you can, is it smooth turning ?

The only other main items that would give problems is the leadscrew ballnut or the thrust bearing that takes the load at the bottom of the leadscrew

The guides are just that, they are not really load bearing, I would check these last

Electrical equip. is not cheap, I cannot give you exact info on what you need to diagnose the problem, as I also am guessing from here. ( simplest tool is to use a big long screwdriver like a stethoscope- put the tip onto a spot near a bearing and the handle against your ear )

Other than that, I would be really guessing

[MCR-B II]

Thanks for your post

''Y-axis, this is the 1 that takes the spindle weight and everything''
Yes Y axis is carrying those
''Just to eliminate the absurd, have you checked that the guarding or pipework is not creating a noise vibrating ( metal to metal ).''
You mean Y axis cover is good condition. Also hoses and pipes are
''Is the noise more apparent when jogging Y+ or Y-, slow-20% or fast-100%''
when moving faster more apparent
''Can you turn the leadscrew by hand with power OFF ? If you can, is it smooth turning ?''
Y axis motor has a brake inside but I did n't do but Y axis load no so excessive.
I forgot to say oiling on four linear guides and ball screw nut ok and MOBİL vactra no:2
and no small particles.

The cheapest is changing the bearings of Y axis
Right , guides are %1 or less. last check.

[Algirdas]

so. You have noise with spindle standing still, moving Y axis only. I would check the samurai covers again and again.
You suspect the bearings. The inaccuracy of Y axis movement (backlash) is the first indication of ball-srew bearings problem. The noise comes after.
You need to switch off linear scales to check the backlash of Y axis.

[MCR-B II]

Thanks Al for your comment

Machine doesn't have linear scales. Y axis accuracy is good.
Many times bearings give sounds but also accuracy is good.

waiting for comments

[Cruiser815]

MCR-BII
I just trouble shot a MX60HB ball screw problem a couple of weeks ago. The way to prove this out is to prop up the Y axis (the Y axis column will drop if not secured), once the Y axis is secured, you can disconnect the ball nut from the Y axis column. Turn the ball nut by hand and I bet you will find that there is drag on the ball nut in one direction. The ball nut should turn free in both directions, if not you will need to replace the whole ball screw and end bearings. I had the same problem on Z axis and machine would repeat with no problems. Good Luck

[MCR-B II]

MCR-BII
I just trouble shot a MX60HB ball screw problem a couple of weeks ago. The way to prove this out is to prop up the Y axis (the Y axis column will drop if not secured), once the Y axis is secured, you can disconnect the ball nut from the Y axis column. Turn the ball nut by hand and I bet you will find that there is drag on the ball nut in one direction. The ball nut should turn free in both directions, if not you will need to replace the whole ball screw and end bearings. I had the same problem on Z axis and machine would repeat with no problems. Good Luck

Thanks Cruiser815 for your comment

I ll remember this info