16 Apr The calibration of robots in the industry
The calibration of robots is essential to ensure the accuracy of work in the production lines. During the execution of the programmed routines, the robots can deviate, which means that both calibration and recalibration are necessary to guarantee the reliability and precision of the processes.
It is an essential procedure in sectors as diverse as aeronautics, automotive or healthcare, among others.
Next, we offer you a development of some of the most important characteristics of this technique.
Fundamental parameters of the calibration of robots
We can start by saying that, technically, it is about establishing the values of the kinematic and dynamic parameters of a robot.
The kinematic factors allow you to know the orientation and relative position of the connections and junctions of the joints of the robot, while the dynamic factors help you to define the common masses and internal friction.
We highlight the fact that a calibrated robot will present an absolute positioning accuracy greater than one without calibrating. This results in a more accurate transmission of the robot’s actual position to its respective control programs.
The calibration of the production robots is done on site, that is, during real operating conditions, through special software. Obviously, it is heavy equipment that can not be removed from the assembly line to obtain the necessary measurements.
The most important parameters are the accuracy of the pose and the repeatability.
Finally, we highlight the fact that it is the international standard ISO 9283 that certifies and establishes the criteria for the efficient performance of industrial robots together with the associated tests and technical tests.
In short, the calibration of robots is essential so that you can identify the geometric values of a robot, generating the corresponding positioning compensations to optimize its accuracy.