The possibility of collaboration between humans and robots in a shared work space, without safety fencing or protection barriers of any kind, opens a challenging new work field, with uncountable opportunities and concepts for industry and production.
The collaborative robotics introduces four different safety basic principles in the human-robot collaboration relationship, described below:
- Learning by manual guidance
The movements to be made by each section of the robotic arm are taught by the operator through physical guidance
- Distance and speed monitoring
The robot predicts a collision with the operator by monitoring their speed and the distance of separation.
- Monitored stop oriented to safety
Robots are programmed to stop or reduce their speed autonomously when the worker accesses the common area of work and continues to work once the worker has left the area.
- Limitation of output and power
The contact pressure between the operator and the robot is technically reduced to an acceptable level.
The legal situation allows human-robot collaboration within certain limits. In any case, considering that, depending on the application, different elements might introduce different risks, systems with cobots require a risk evaluation and their corresponding certification of the complete system safety, provided by an accredited institution.
Our innovative nature has led us to develop, using this technology, our SPCC (Sinterpack’s Palletising Collaborative Cell), which was launched in May 2017.
The SPCC is equipped with a UR10 arm, of 10kg maximum load capacity, and a collaborative gripper with a suction pad, specifically designed by SINTERPACK for this application, weighing 1.5kg, which leaves a nominal load capacity of 8.5kg. It includes a double belt conveyor, for boxes dosage, at the entrance of the cell.
The footprint of the equipment is of 2.2 by 2.4 meters and its output reaches 7.5 cycles per minute in collaborative conditions.