Tech Briefs Magazine - June 2022 - MD-16

Finding Welding Relief with Low-Cost Automation
A
utomation escapes many small and
mid-sized manufacturers due to the
high cost of robotics. Particularly for
unique applications, finding the right
solutions to remove the barrier to entry
while also finding the components to get
the job done is a challenging task.
RHEWUM®
screening machines, discovered a low-cost
solution for a collaborative robot that assists
in the welding process. The company
sought an automated solution that was robust
enough to withstand flying sparks
and higher temperatures in the welding
process, but also mobile enough to reach
the area of application. The company
found the answer with a " 7th
axis " robot.
A limiting factor of a four, five, or six
axis robot is that it is stationary and typically
bolted to a floor in a fixed position
to work within a predefined workspace.
Adding a 7th
axis enables robots to move
the length of a linear guide to other
workstations to perform other tasks.
That is precisely the solution required by
RHEWUM®
.
, a German manufacturer of
For more than 70 years, RHEWUM®
has been manufacturing screening machines
for the entire range of dry and
wet screening as well as vibrating conveyors.
Their products screen sugar, fertilizer,
salts, plastic powders and granules,
and numerous other products. All machines
must be manufactured and tailored
to the respective movement.
In its production hall, a lightweight
robot is used for the automated welding
of components. A Universal Robot UR
10 has a payload of over 10 kg with a
reach of 1,300 mm. To increase the range
of the cobot's working area, it moves on
a 5.5 meter long seventh axis.
Components used in welding applications
are required to be robust enough
to withstand flying sparks and the higher
temperatures associated with the process.
RHEWUM®
needed a low-cost automated
solution, including a gearbox, articulated
arm, and seventh axis. The
process also includes an energy chain to
match the seventh axis. The energy
chain, which can be opened on both
sides, offers a straight run thanks to the
inside/outside plate principle. The special
sliding surfaces of the e-chain also
ensure a long surface life.
RHEWUM®
uses a metal inert gas
welding process to achieve a highly reproducible
quality on the weld seams.
While common in manufacturing, the
process carries risks. Noise, heat, and
fire all endanger workers, as do gaseous
and particulate welding fumes. Inert
gases can accumulate in the work area,
displacing oxygen and generating carbon
monoxide at potentially toxic levels.
RHEWUM®, a German manufacturer of screening machines, uses a collaborative robot to assist in the welding process. (Image: igus)
16
Motion Design, June 2022
MD Automation Control Application 0622_1.indd 16
Cov
ToC
5/18/22 12:43 PM
http://info.hotims.com/82322-850

Tech Briefs Magazine - June 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - June 2022

Tech Briefs Magazine - June 2022 - Intro
Tech Briefs Magazine - June 2022 - Sponsor
Tech Briefs Magazine - June 2022 - Band1
Tech Briefs Magazine - June 2022 - Band2
Tech Briefs Magazine - June 2022 - Cov1
Tech Briefs Magazine - June 2022 - Cov2
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Tech Briefs Magazine - June 2022 - Cov3
Tech Briefs Magazine - June 2022 - Cov4
Tech Briefs Magazine - June 2022 - MD-Cov1
Tech Briefs Magazine - June 2022 - MD-Cov2
Tech Briefs Magazine - June 2022 - MD-1
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Tech Briefs Magazine - June 2022 - MD-22
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Tech Briefs Magazine - June 2022 - MD-24
Tech Briefs Magazine - June 2022 - MD-Cov3
Tech Briefs Magazine - June 2022 - MD-Cov4
Tech Briefs Magazine - June 2022 - Sensor-Cov1
Tech Briefs Magazine - June 2022 - Sensor-Cov2
Tech Briefs Magazine - June 2022 - Sensor-1
Tech Briefs Magazine - June 2022 - Sensor-2
Tech Briefs Magazine - June 2022 - Sensor-3
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Tech Briefs Magazine - June 2022 - Sensor-Cov3
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