FOR FLEXIBLE OFFLINE-TO-RUNNING
MEASUREMENTS OF CRITICAL MACHINES
Measurements of dynamic movements are used for critical machines within industries,
where large temperature differences or other disturbing factors exist. The
need for measurement of dynamic movements is often indicated by a high level of
vibrations. For some machines these high levels remain even after having performed
shaft alignment in cold condition. The Fixturlaser NXA together with the OL2R
Expansion kit helps you to overcome this costly and time consuming problem by
performing offline-to-running measurements. The measurements provide you with
machine unique target values to be used for compensation during shaft alignment.
The Fixturlaser OL2R Expansion kit consists of both software and fixtures.
The Fixturlaser OL2R fixtures are both equipped with a laser pointer, which means
that the Fixturlaser NXA alignment system is not needed in order to mount the
fixtures. Thanks to this feature the mounting can be performed fast and easy.
The offline-to-running measurement
process in short
Mount the tooling ball on each machine. Ensure
that the bolt is tighten and that the arrangement
is firmly mounted to the machine casing.
Check that the laser is adjusted to the rotational
centre by rotating the turret on each fixture.
Adjust the fixtures until both the lasers are hitting
the centre of the opposing target. Tighten
the screw on the fixture and make sure that it
is stable while rotating the turrets.
Turn off the laser beams in the fixtures and mount
the Fixturlaser NXA sensors on the posts of the
fixtures. Set the sensors so that they are approximately
at the same rotational angle when taking
the three measurements. Perform the measurement
in both cold and hot condition. Thereafter
continue with the shaft alignment using the target
values from the offline-to-running measurements.