We have a 1999 VF4 mill that has gradually got worse with terrible vibration when cutting. It is nothing to do with speeds/feeds/tool wear because they work fine doing same job on our other VF4. As from yesterday I shut it down and told maintenance to get it sorted.
As I work nights, I returned to find that they had attempted to investigate what was causing this when really not having any experience.
However, it appears they removed a few covers and basically looked to see if anything seemed wrong. They tightened the drive belt to the spindle then put everthing back together.
The day shift guy did a toolchange but it crashed due to the orientation being incorrect.This was put right following a phone call before I went to bed.
The machine is out of use , but I was told this morning that the the spindle is releasing the tool too early when entering the drum during a change. It completes the change ok but it needs to be adjusted. What area/parameter needs changing?
If you rotated the spindle by hand there appears to be a slight knocking from within. Before I left this morning, I told the other guy to put a face mill in and see if the vibration has gone.
Are the Tool Clamping problems/ Vibration connected in any way?
The annoying thing is that I only get to know the full facts on machine problems when I am on the way out in the morning. When I arrive at night there is no change over and any issues may not arise until later. I can usually tell straight away if anything is wrong but it can be very frustrating in attempting to correct things given the limited time available.