TPT January 2016

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January 2016 101
Article
Schwarze-Robitec GmbH
Precision and
quality check
in one work step
A high degree of precision avoids
unnecessary waste of expensive
materials. “Ideally, the tubes are
already checked during the bending
process and the results corrected, if
necessary,” explained Mr Korte.
“The optionally integratable
measuring system from Schwarze-
Robitec determines the spring-back
value directly after bending of a tube,
and the CNC control uses this to
calculate the necessary re-bending
angle.”
Re-bending is done directly following
this – if desired fully automatically
or after release by the machine
operator. The bend is carried out
precisely to half a degree deviation
and nearly every component is a useable good part. The
complete process only takes a few seconds per work piece
on average.
In comparison, measuring and adjusting by the conventional
method require about three to five minutes. The operator also
benefits from the integrated measuring system: if the previous
manual calculation posed an increased source of errors and
cost the operator time, the work steps are now considerably
simplified.
At this point it shows that the operator-friendly and safe
production processes are important factors when dealing with
profitability in shipbuilding and plant construction. When work
steps such as machine re-fits or checking tubes on separate
systems are omitted, the operators have less physical stress,
and it leads to a higher degree of occupational safety.
From solutions for time efficiency to concepts for material
savings and all the way to work-simplifying extras: all
these need to be taken into consideration when production
processes are to be designed economically and sustainably.
Schwarze-Robitec GmbH –
the Company
The company, founded in 1903, is a leading producer of
tube bending machines. Since 2011 it has been run by
the managing directors Bert Zorn and Hartmut Stöhr. At its
headquarters in Cologne, the specialist for automatic cold
bending machines currently employs 130 staff.
The company is represented worldwide via long-term partner
enterprises. Schwarze-Robitec manufactured the world’s first
CNC-controlled tube bending machine back in 1977. To date,
more than 2,400 machines have been sold – some of them
Schwarze-Robitec GmbH – Germany
Telephone: +49 221 890080
Fax: +49 221 89008 9920
Email:
Website:
With the help of the measuring system integrated in the bending tool, tube processing companies
can bend, measure and adjust in a single operation
have been used in production unrestrictedly for far more than
35 years.
The Schwarze-Robitec product range includes, in addition to
tube bending machines and bending tools, tube perforating
machines, measuring stations, and solutions in the area of
special machinery construction.