At first glance, you might think that robots make our workplace safer. After all, robotic devices can perform repetitive tasks without suffering musculoskeletal disorders. And robots can lift heavy loads and not experience back injuries.
In reality, however, robotic equipment can also make our workplace less safe – if we’re not careful.
Remember: Robots aren’t like other machines. They’re capable of fast and powerful movements through a large volume of space. These movements often exceed the apparent dimensions of the device. And the operation of robots can be complex, with some movements happening infrequently, making them unexpected and extremely dangerous.
(What types of hazards are most commonly associated with robots?)
There are several dangers linked to robotic equipment. Sometimes, the risks are similar to those associated with nonrobotic equipment. Other times, the hazard is unique to the robot.
Unpredictable or unexpected movements, component malfunctions, or unauthorized program changes can result in impact, collision and other struck-by hazards. Similarly, a hand, limb, or other body part can become trapped within or between a robot, its manipulator, another robotic device, or peripheral equipment.
Furthermore, the power system for a robot can be dangerous. For instance, a system’s electrical power supply and cords can present arc flash, shock, fire, or other dangers. And ruptured hydraulic lines can create hazardous high-pressure cutting streams or cause hoses to whip.
To prevent injuries related to the use of robots, it’s important to follow basic safety practices while working in the area of robotic equipment. Never get anywhere near a robotic device unless you’re aware of its established exit and entry procedures.
Always maintain good situational awareness when you’re in the area of a robot. That is, you should know which parts of the equipment can move and in what direction. Critically important: Always confirm the location of the emergency shutoff button when you’re in the area of a robotic device. That way, you can shut down the unit, if necessary, before it injures you.
And don’t get anywhere near robotic equipment for servicing and maintenance activities unless the power has been locked out. Also pay attention to warning signs posted near a robot. Make sure that interlocked doors, barriers and awareness devices are in good working order. Never jump over barriers or take other steps to disable safety components.
Thanks for your attention. And remember, let’s stay safe out there!
(From the Oct. 28,2024, issue of Safety Alert for Supervisors. To start your no-obligation trial subscription to the publication right now, please click here.)