Abstract
The end effector (gripper) is an important part of a robotic system that is used for industrial and domestic tasks like grasping, carrying, manipulating, assembling, painting, and so on. For handling different types of objects hard as well as soft, require different types of the gripper. The employment of compliant soft-robotic grasping systems, which are characterized by high flexibility in terms of workpiece shape, dimension, and anatomy, is a good method to incorporate greater flexibility into production. The study's major goal is to build and analyses the soft-robotic grippers in terms of repeatability with large payload capacities. End effector (soft gripper) control is crucial for precision work by applying different gripping forces according to the object going to pick. The selection of suitable gripping force for a particular object is done by the process of machine learning (ML). The soft gripper is designed, fabricated, and tested using Industrial Robot (IRB 360) flex picker robot. The virtual environment is created to move the linear path using Robot studio software with rapid programming language. The accuracy, precision, recall, and receiver operating characteristic curve (ROC) curve are analyzed and predict the gripper force accurately with 94% when compared with experimental value. The gripper is working effectively from 1.4 to 2.8 bars with a maximum payload of 500 g. The soft flexible gripper angle is measured based on the pressure using an image processing edge detection technique. The optimized best possible gripping force is predicted using different objects and control action is done to supply exact force to the gripper.
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Acknowledgements
Author wish to thank the Robotics Lab, Department of Mechanical Engineering at SRMIST for utilizing the IRB360 Robot facility to conduct the experimental work.
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All authors contributed to the study conception, design and Manufacturing. Material preparation, Manufacturing, data collection and analysis were performed by [Darshan.V, Sumesh.KS] and the simulation of Robot modeling was done by S. Prabhu and Machine learning analysis was carried out by M.Uma. The first draft of the manuscript was written and verified by [Darshan.V, Sumesh.KS and S. Prabhu]. All authors read and approved the final manuscript.
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Appendices
Appendix 1: Logistic regression analysis of gripping force
Appendix 2: Bending angle calculation using Matlab Image processing code
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Sethuramalingam, P., Uma, M., Darshan, V. et al. Design and development of universal soft robotic end effector through machine learning on the IRB 360 robot. Int J Intell Robot Appl (2024). https://doi.org/10.1007/s41315-024-00339-w
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DOI: https://doi.org/10.1007/s41315-024-00339-w