A cobot, or collaborative robot, is a robot intended for direct human robot interaction within a shared space, or where humans and robots are in close proximity. Cobot applications contrast with traditional industrial robot applications in which robots are isolated from human contact. Cobot safety may rely on lightweight construction materials, rounded edges, and inherent limitation of speed and force, or on sensors and software that ensures safe behavior.
In order to determine safety methods for human-machine collaboration applications, ISO/TC 184/SC2 WG3 accepted the commission and prepared ISO/TS 15066 technical specification “Robots and Robotic Equipment — Cooperative industrial Robots”.Therefore, to become a cooperative robot, it needs to meet the safety requirements of ISO/TS 15066.
First, security level monitoring stops.When someone enters the test area, the robot must stop working.The second is manual guidance.The cooperative robot can only work according to the touch force of the operator.The third is speed and separation monitoring.A robot can only work if there is a certain amount of space between it and a human.Fourth, power and power are limited by the controller and built-in design.When a collision occurs, the robot must reduce the output power to prevent the accident.A cooperative robot needs to meet at least one of these requirements, and it must have a status indication when the robot is in a working state.Only when these requirements are met can it be called a cooperative robot.
All of these requirements are related to safety performance, so for collaborative robots, safety is the most important point.So why do we use collaborative robots?What are the advantages of collaborative robots?
First, reduce costs.Since there is no need to install safety barriers, it can be placed anywhere in the factory and can be adjusted at will.
Second, debugging is simple.There is no need to have professional knowledge, just need to move the robot body to teach.
Third, reduce safety accidents.Collaborative robots are easier to control than industrial robots
And these are all determined by their structural characteristics.
The first is its torque sensor.The collaborative robot has six torque sensors that can detect collisions and ensure safety, as well as make the robot’s movement more precise.
The second is the installation position of the servo drive module.The servo drive module controls the mobile robot by electric current.The servo drive module of the industrial robot is usually installed in the control cabinet, while the cooperative robot is installed at each joint.By double-counting the position of the robot, collaborative robots are more accurate and safer than industrial robots.
Post time: Sep-24-2021
