Abstract
In this paper an approach of measuring the positional precision of the execution terminal of the industrial robot is introduced, and the approach based on a non-contact laser tracing measurement has the advantage of high-speed response, high detection accuracy and non-contact measurement. This method utilizes the linear motion units and photo detection units to trace the target actively. The measurement of the target coordinates are measured with the laser interferometer linear measurement module and the grating ruler. This system can achieve the position measurement of the planar motion objects without contact in real-time condition and also possesses the high precision.
Highlights
With the fast development of both robotic technology, industrial robots widely employed in assembly, seam welding, testing, drilling and other fields, requirements of robots’ positioning accuracy and kinematics performance have greatly improved
We study the laser tracing measurement technique based on Cartesian coordinates
To determine the position precision of the industry robot, the laser tracking measurement system is studied in the paper
Summary
With the fast development of both robotic technology, industrial robots widely employed in assembly, seam welding, testing, drilling and other fields, requirements of robots’ positioning accuracy and kinematics performance have greatly improved. Flexible, dynamic and high precision, the laser tracing measurement system can realize high-precision measurement of moving objects in space. Some companies, such as LEICA, API and FARO, have launched commercial laser tracking measurement system based on the spherical coordinate. We study the laser tracing measurement technique based on Cartesian coordinates. This system overcomes the former’s precision coupling. Measuring principle and system structure To track the movement and determine its two-dimensional coordinates of a point in the plane, a target mirror is attached to the end-effector.
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