HANNOVER MESSE 2020, 20 - 24 April
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Man and machine: A team at the top of their game

Capable of reacting to people and not just following pre-programmed commands, collaborative robots equipped with sensors enable an entirely new form of teamwork. This in turn allows companies, especially SMEs, to boost their competitiveness.

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Colleagues of steel: collaborative robots

German industry currently deploys 290 multi-functional robots per 10,000 employees - and that figure is only expected to rise. Yet instead of replacing human workers, the machines are more typically becoming their colleagues. Collaborative robots, known as 'cobots' for short, are part of a new generation of robots that work hand-in-hand with their human colleagues.

Interactive, flexible, safe

Unlike traditional industrial robots, which perform their work in physically isolated units, cobots come into direct contact with their human colleagues. Using sensor technology, they observe the movements and position of persons - making them safe enough to assist workers directly with their work without exposing the humans to the risk of injury. Cobots are flexible, easy to program and easy to move. In some cases weighing just ten kilograms, the collaborative lightweight robots can easily be carried by a single person and put into action wherever desired.

Challenging tasks instead of physical loads

The auto industry is working on the vanguard of collaborative robot technology. Articulated robots have been installed for several years now alongside their human colleagues in the production halls of vehicle makers BMW and Ford. They work independently to apply sealants to auto doors and hand tools as needed to skilled technicians as they make their way through on complex installations. The employees are freed up from monotonous and physically straining tasks - and can instead focus on the complex installation itself.

Safety first

Strict safety rules have been formulated for working with cobots, all intended to minimize the risk of injury by employees in industrial production. One approach is based on "direct guidance," meaning the robot only moves upon receiving direct input from a human, such as by touching the robot arm. This ensures the employee has complete control over the cobot at all times. If, by contrast, a collaborative robot is to be allowed to move without direct human guidance, then the shared activity must be constantly monitored. If the prescribed safety zone between human and cobot is violated, then the robot automatically slows its movements to prevent injuring the employee. If a so-called "monitored stop" is in place, then the co-robot comes to an immediate standstill when a human enters its working space.

The most important security measures by far, however, are restrictions on how fast the robot may move. The robot's speed and power is permanently throttled so that it cannot harm employees even when moving. If a person moves unexpectedly and without supervision into the cobot's working space and is struck by a robot arm, the power behind the movement is never strong enough to cause serious injury.

Automation technology is an essential ingredient in the modern age of digital competition. Many solutions are already available. What's the most effective and efficient way to switch over to smart factory ? You'll find the answer at the HANNOVER MESSE: The world’s leading trade for industrial solutions offers insights and perspectives for all industries.


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Cobots - collaborative robots

Hand in hand with humankind. Robot colleagues safely and efficiently support the staff in modern factories.

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