In order to determine the safety method of human-computer cooperation application, the International Organization for Standardization (ISO/TC 184/SC2 WG3) accepted the entrustment and prepared ISO/TS? 15066 technical specification "Robots and robot equipment - collaborative industrial robots", so to become a collaborative robot, it is necessary to meet the safety requirements of ISO/TS 15066.
First, the 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. Only when there is a certain distance between the robot and the human can the robot work. Fourth, power and power are limited by the controller and built-in design. When a touch accident occurs, the robot must reduce its output power to prevent the accident. The cooperative robot needs to meet at least one of these requirements, and must have status indication when the robot is in working state. Only by meeting these requirements can we be called cooperative robots.
All these requirements are related to safety performance. It can be seen that safety is the most important point for cooperative robots. So why do we use collaborative robots? What are the advantages of cooperative robots?
First, reduce costs. Since there is no need to install safety guardrail, 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, but simply move the robot's body to teach.
Third, reduce safety accidents. Compared with industrial robots, cooperative robots are easier to control.
These are determined by their structural characteristics.
The first is its torque sensor. The cooperative robot has six torque sensors, which can detect collision and ensure safety, and make the robot move more accurately.
The second is the installation position of servo drive module. The servo drive module controls the mobile robot through current. The servo drive module of industrial robot is generally installed in the control cabinet, while the cooperative robot is installed at each joint. By double calculating the position value of the robot, the cooperative robot is more accurate and safe than the industrial robot.