Curtains of light and other safety devices for robotic workcells

Jul 15, 2013

Robotic workcells need specific safety measures in order to help further protect the human workers. Many workcells use safety light curtains that are electronic devices used instead of a physical barrier. Beams of light are sequences and pulsed from a transmitter to a receiver. Once motion is detected, a workcell will stop.


Robot­ic work­cells, just like any oth­er sys­tem, need safe­ty mea­sures to keep work­ers out of the robot’s area dur­ing oper­a­tion. Many work­cells use safe­ty light cur­tains to per­form this task.

Safe­ty light cur­tains are opti­cal elec­tron­ic devices are a form of machine guard­ing that can be used instead of using phys­i­cal bar­ri­ers. These cur­tains are made from beams of light that are sequenced and pulsed across an area from a trans­mit­ter to a receiver.

Robot­ic work­cells use these pres­ence detec­tion devices to ensure that noth­ing gets close enough to the robot to be harmed dur­ing the run­ning of a cycle. If some­thing cross­es that bar­ri­er dur­ing the robot workcell’s oper­a­tion, the oper­a­tion will stop to safe­guard workers.

Along with light cur­tains, robot work­cells can also use safe­ty mats that are pres­sure sen­si­tive to guard an area. If some­thing steps on these mats dur­ing oper­a­tion, it can cause the appli­ca­tion to pause as well, keep­ing the work­er out of harm’s way.

There are also phys­i­cal bar­ri­ers like inter­lock­ing doors that will slide down when a robot­ic work­cell is oper­a­tional, not allow­ing any­one into the work­cell dur­ing the cycle. These doors then slide open when the oper­a­tion is fin­ished so that work­ers or oth­er robots can col­lect the parts and send them on to oth­er parts of the line.

Robots​.com, a cer­ti­fied inte­gra­tor of robot­ic work­cells for many com­pa­nies, includ­ing Motoman, Fanuc, ABB, and KUKA, has many options avail­able for your automa­tion process. Robots​.com even has its own group­ing of robot­ic work­cells for cus­tomers to consider.

Each work­cell comes with one or more robots, a posi­tion­er and a safe­ty pack­age, along with extras like a weld­ing pack­age or oth­er end-of-arm-tool­ing, depend­ing on what fea­tures the cus­tomer requests.

For more infor­ma­tion on robot­ic work­cells and how to inte­grate one into your shop, con­tact Robots​.com today online or at 8777626881.

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