LaserLab

Calibrating and measuring with LaserLAB

The LaserLAB is a universally applicable measuring device for carrying out the complete cell calibration of a robot cell

LaserLab

With the LaserLAB, tools and bases can be calibrated automatically and with high precision, making the use of measuring tips unnecessary. Once your robot cell has been measured with the Wiest LaserLAB, you then have the additional option of a hardware recovery. This means that the geometries changed by a tool replacement or cell relocation can be measured and corrected quickly and reliably.

Moreover, with the LaserLAB any robot can be calibrated, measured with absolute accuracy and mastered automatically.

Measurement of additional axes for synchronised robot movement rounds off the LaserLAB portfolio.

Using the LaserLAB for tool and base measurement couldn't be easier. You just set up the system in the cell and connect it. You then start the robot's measurement program. This makes the robot move to several stored measuring points Your robot is now ready for operation with immediate effect.

For absolutely accurate robot calibration, all the axes are moved and about 20 points measured automatically. The absolute values are then calculated from the robot poses and can be transferred to the robot.

Hardware

The LaserLAB is mounted in the cell or on the robot only for the duration of the measurement. Together with the measuring system pillar, it is flange-mounted into the base plates provided.

The five laser triangulation sensors of the LaserLAB are set up so that their beams from different directions meet in a common centre. The directions of the laser beams are determined precisely by a factory calibration. Based on the directions and the measured distance of the individual sensors, surface points on the ball can be determined in three dimensions. This information can be used to calculate the position of the ball centre. After four measurements the first approximation for the TCP is obtained. This can be transferred to the robot controller at the touch of a button.

Further measurements are obtained simply by re-orientating the ball within LaserLAB. Generally 12 measurements are ample to reach a sufficiently high accuracy.

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