Accuracy and repeatability analysis of industrial robot under loaded conditions and various distances

Mohd Salim, Muhammad Ammar Luqman (2016) Accuracy and repeatability analysis of industrial robot under loaded conditions and various distances. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This project analyses the performance of a six axis COMAU Smart NS industrial robot in terms of its accuracy and repeatability using dial gauge indicator. The dial gauge was choosen because it is the one economic way calibration method compared to laser interferometer and it is easy to set-up. This project also investigates how repeatability and accuracy of the industrial robot are affected by two variables which are varying load and distances. This project started by conducting literature research about the industrial robot and dial gauge indicator using online resources, books, manuals, journals and articles.. This project had obtained successful results to meet the objectives. The dial gauge indicator was able to give measurement values of the accuracy and repeatability with 360 number of experiment for each distance. The repeatability result is ± 0.004 mm and it is proved that the COMAU robot still has good repeatability and accuracy when compared to manufacturer specification. Furthermore, only accuracy against load factor that shows the relationship between each other with the model of equation. The results for this calibration may not accurate as using laser interferometer but this study are able to promote the use of dial gauge indicator as a simpler method to determine robot’s performance for robotic laboratory exercises.

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