Last updated on April 20, 2014 at 8:28 EDT

Comau Spot Welding Machine: Convergent Evolution

May 20, 2012

GRUGLIASCO, Italy, May 21, 2012 /PRNewswire/ –

The Comau spot welding machine integrates a welding gun with the flange connected
directly to the robot without the need for any adapter kit. The result is a light and
compact product, able to sustain a high payload and, therefore, it is an ideal spot
welding system for the automotive industry.

From the very beginning Comau teams worked to optimize all of the system’s components.
This led to the inception of the new spot welding gun, with a total weight of 40% less
than previous models. It features a compact welding gun equipped with an improved
transformer, which is rotated 90degree(s) to further decrease the dimensions of the body
and shift the center of gravity closer to the robot’s wrist.

Rendered unnecessary, the pneumatic cylinder for balancing the welding gun has been
eliminated and, now, the fieldbus module and the flexion of the gun arms are controlled
through the robot’s software.

The cooling pipes and cables are housed within a protective cover that guarantees
maximum safeguard from wear. Its defined layout allows positioning repeatability even
after maintenance services and interventions.

This welding gun marks a new standard that can be installed and used with all robots,
even as a retro-fit.

Along with the welding gun, the latest generation of robots has been developed. The
result is a compact, lightweight robot that has maintained the same functional range of
the arm by optimizing the dimensions of each individual component, such as the engines.

One key point, with respect to the spot welding machine’s accuracy, is the complete
integration of the cables and pipes running to the welding gun inside the robot arm.

The system has been improved from every perspective – refining the algorithms and the
logic of movements, so that it is now free of redundancies.

Together, the robot and welding gun symbolize the hinge of the Comau new spot welding
machines, which will open the door to a new paradigm in welding.

Thanks to its reduced weight and dimensions, today it is possible to create new
welding cells and islands that are highly dense, in order to increase the number of robots
simultaneously in action. Greater density translates to greater energy efficiency, reduced
operating costs and lower cycle times.

This welding machine can also be installed on the ceiling. The free space on the
ground guarantees greater control of the production line and grants operators easier
access for maintenance and re-tooling jobs.

Developed this way, the cell can be transported and installed whole throughout the
world, achieving optimal modularity and standardization of operational processes on a
global level.

Developing highly efficient solutions that have a positive effect on operating costs
means developing integrated systems that are characterized by increased component
reliability. From this perspective, it is clear how this spot welding machine is a great
representation of Comau technological vision – to introduce a convergent evolution to the
world of industrial technology.


Source: PR Newswire