| High performance
spindles are among the most important functional
components in machine tooling because of their
direct influence on precision, productivity and
output. The current trend is towards higher
revolutions per minute, which increase the
potential productivity. This, however, subjects
the spindle to extreme loads.
In this situation, our
customers need a reliable means of monitoring
wear-sensitive components in order to avoid the
ultimate cost of repairing damaged spindles.
Our spindle data logging unit is integrated into
the spindle and reliably records the spindle¡¯s
history. It consists of an independent
monitoring unit capable of monitoring 5 dynamic
signals. An alarm signal (recorded with date and
time) is activated when predefined limits are
exceeded. The data remains stored even when the
power is turned off.
Online condition monitoring
via a serial interface alerts operators early
enough to impending wear-related disturbances
for them to plan appropriate maintenance,
avoiding spindle damage and the resultant costs
of lost production. The records of spindle
history enable the spindle manufacturer to
determine aspects of spindle behaviour under
particular conditions and thus assess warranty
claims.
Sensors:
- Digital temperature
sensors e.g. for bearings, cooling water
- Analog temperature
sensors e.g. in the motor winding
- Acceleration sensors e.g.
to record vibrations and bearing acoustics
- Revolution counters
- Tool exchange sensors
Data evaluation:
- Histograms (frequency
distributions)
- Trend functions
- Alarm/warning messages
- Maximum values per shift
- Operating hours counter
- Tool exchange
Assembly/Size:
The data logging unit can be
mounted onto the back of the spindle or in a
separate housing
Supply voltage and
power input:
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