Case Study Talleres de Guernica Laser tracker-based ... · Guernica, based in the city of Guernica,...
Transcript of Case Study Talleres de Guernica Laser tracker-based ... · Guernica, based in the city of Guernica,...
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Case Study Talleres de GuernicaLaser tracker-based inspection of machine tool components
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The machine tool company Talleres de
Guernica, based in the city of Guernica, where
the Basque Country’s heritage is omnipresent,
has a long experience in metal machining
since its foundation in 1916. Over the years,
Talleres de Guernica constantly modernized
their manufacturing technology and widened
their product range. Their production became
increasingly automated, parts grew, tolerance
values however shrunk.
Mistakes are expensive.
Today, Talleres de Guernica offer mainly chucks
and jaws for many types of machines. Most
parts have a diameter of 2 m maximum – pure
routine for Quality Manager Manu Fuentes and
his team. When a customer asked for a chuck
to be used in a manufacturing centre for wind
turbine components with a diameter of 7 m
and a weight of 65t, new manufacturing and
inspection methods had to be considered.
Manu Fuentes looks back: “We did not have a
lot of experience with such dimensions. But we
knew that manufacturing mistakes would cost
us a lot of time and money. So we decided to
extend our measuring instruments and build
the large part based on highly accurate data.
For us, the maximum acceptable deviation is
0.05 mm.”
Measuring without laser tracker: Impossible.
While evaluating different metrology tools,
the Talleres de Guernica team came to the
conclusion that a laser tracker is the best
solution for the measurement of a large and
immobile object. “Measuring with other tools,
especially with analogue ones, is impossible
for us”, said Manu Fuentes.
The decision was in favour of the Leica
Absolute Tracker AT401. This lightweight
portable CMM can perform measurements
within a volume of up to 320 m. It is battery
operated and certified according to the IP54
protection class, which allows operation
under rough conditions. The system is set up
wirelessly so that one operator with a remote
control is sufficient. PowerLock technology
directs the laser beam automatically towards
the user. Thanks to PowerLock, new users can
be trained quickly.
Delivering a perfect part.
Manu Fuentes: “The portability of the system
was the decisive factor for us. We can put it
on the chuck and are ready to measure within
a couple of moments. The measurement
itself is done very fast.” Between the single
manufacturing steps, the laser tracker is
used to check a list of critical elements on
the chuck. This list includes the position of
the jaws and their features such as holes and
edges or the flatness of the chuck’s surfaces.
“Basically, we measure to exclude any risk
during the manufacturing process”, adds
Michel Clavier, Director of Production. “And
this decision is confirmed every time the
measurement raises a question mark. We will
deliver a perfect part to our customer.”
When a customer of Talleres de
Guernica’s asked for a precision
chuck with 7 m diameter, the Spanish
machine tool company designed a
manufacturing process based on
permanent quality control. With the
Leica Absolute Tracker AT401, new
business opened up.
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The laser tracker from Leica Geosystems
influenced Talleres de Guernica‘s presence on
the machine tool market. They are now able to
manufacture chucks in enormous sizes. Manu
Fuentes sums up: “The Hexagon Metrology
solution with Leica Absolute Tracker and PC-DMIS
software are a strong package and exactly what
we needed to solve our business challenge.
Thanks to the tracker, we can access new market
segments.”
Andreas Petrosino
1: Accurate measurement data are the fundament for
Talleres de Guernica‘s successful 7 m chuck production.
2: Leica Absolute Tracker AT401 and PC-DMIS - a powerful
package.
3: One person is enough - laser tracker operation with
remote control and PowerLock.
Whether building the fastest car, the biggest
plane, or the most precise tooling, you need exact
measurements to improve quality and productivity.
So when it has to be right, professionals trust
Leica Geosystems Metrology to help collect,
analyze, and present 3-dimensional (3D) data for
industrial measurement.
Leica Geosystems Metrology is best known
for its broad array of control and industrial
measurement products including laser trackers,
Local Positioning Technology (LPT) based
systems, hand-held scanners, 3D software and
high-precision total stations. Those who use Leica
Metrology products every day trust them for their
dependability, the value they deliver, and the
world-class service & support that’s second to
none.
Precision, reliability and service from Leica
Geosystems Metrology.
www.leica-geosystems.com/metrology
www.hexagonmetrology.com
© 2011 Hexagon Metrology. Part of Hexagon Group.
All rights reserved.