Test system for measuring repositioning precision of industrial robot

Abstract

The invention discloses a test system for measuring the repositioning precision of an industrial robot. The test system has the structure that a detection device is connected with a data processing terminal through a data acquisition unit; three axial brackets are arranged on a bracket sliding rod of the detection device; three laser displacement sensors are mounted on the axial brackets and are perpendicular to one another in space; when the industrial robot arrives at the test centers of the laser displacement sensors, three paths of light are projected to the tail end of the industrial robot to measure the positions of the three coordinates in space. Due to the adoption of the structure, compared with traditional equipment and a traditional operation manner, the test system provided by the invention is simple in process, is relatively low in cost, is improved in measuring precision, is high in transmission rate, is flexible in communication way, is not restricted to the measurement of a single workstation, can be applied to measurement of the repositioning precision of a multi-workstation robot, and can also be applied to on-the-spot monitoring in factories.

Description

technical field [0001] The invention relates to the manufacturing field of industrial robots, in particular to a test system for measuring the repeated positioning accuracy of industrial robots. Background technique [0002] Repeated positioning accuracy is an important technical parameter of industrial robots, and it is also one of the important parameters about the accuracy of robots. [0003] Today's repetitive positioning accuracy measurement is mainly based on laser trackers, which have high measurement accuracy and many measurement functions. However, during the measurement process, the tester needs to track the operation in real time, record the measurement data in real time, and the end of the robot needs to be accurately aligned with the tracker. The final measurement data needs post-processing by testers, so it can only be tested on a single-station robot. The cost of laser tracker equipment is high, and it is not conducive to the simultaneous measurement of mult...

AI Technical Summary

Problems solved by technology

The cost of laser tracker equipment is high, and it is not conducive to the simultaneous measurement of multi-station robots

At the same time, for the relatively low-cost coordinate measuring instrument used to measure the repeat positioning accuracy, although the cost is low, the accuracy of its own test is not high enough, and most of the measured values ​​are mainly analog output, and the communication method is single , the accuracy of the final data is lower

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