2.1 Product - overall view
2 - 10
© Precitec GmbH & Co. KG • EN 09/2019
Sensor insert
The sensor insert
(SE)
is fitted firmly to the laser head. It can be removed by
undoing four screws. A ceramic part
(KT)
is fitted to the sensor insert from
below. It locks into place firmly as it can only be fitted in one direction and is
secured by a nut
(MU).
Nozzle
(nozzle electrode)
The nozzle is screwed into the ceramic part and can be replaced easily if
worn. Precitec nozzles and ceramic parts are very precisely worked. Because
of the minimum concentricity tolerance any re-adjustment work can be
reduced or avoided when replacing these parts.
Fixing to the machine
Four M6 threaded holes
(14.5 mm deep)
at the back of the laser head are used
for fixing it to the machine. Two pin holes ø4
F7
(8 mm deep)
are used to position
the unit precisely and in such a way that this position can be reproduced.
2.1.2
Distance controller
Distance sensor system
(Lasermatic®)
For distance-controlled cutting, the laser head is equipped with the capacitive
Lasermatic®
distance sensor system
(sensor cable, max. 20 m)
.
Together with the other control loop components the system guarantees a
constant standoff distance
(focal position)
between the nozzle electrode and the
workpiece during laser beam cutting if there are no edges or large workpiece
surface bulges in the sensor's scanning range.
2.1.3
Protective equipment
Cooling the collimating lens
The collimating lens must be water-cooled. Fittings with M5 threaded holes for
hoses
(ø6 mm external/ ø4 mm internal)
are used for cooling water outflow and
inflow. The cooling water is conveyed around the collimator housing in a
(stainless steel)
circuit, indirectly cooling the collimating area.
Collision detection
When
Precitec
analysing electronics are used, an electronic collision signal is
emitted when the sensor insert or the nozzle contacts the machine mass. The
signal either stops the drive or enables the laser head to take evasive action.
for the nozzle
(DE)
diameters that can be supplied.
