Investigation of the influence of the length of the intermediate magnetic circuit on the characteristics of magnetic gripper for robotic complexes of the mining industry
- 1 — St. Petersburg Institute of Informatics and Automation of the Russian Academy of Sciences, St. Petersburg, Russia ▪ Orcid
- 2 — St. Petersburg Institute of Informatics and Automation of the Russian Academy of Sciences, St. Petersburg, Russia ▪ Orcid
- 3 — St. Petersburg Institute of Informatics and Automation of the Russian Academy of Sciences, St. Petersburg, Russia ▪ Orcid
Abstract
The analysis of the existing systems of mechanical grippers of various operating principles and operating environments, in the design of which both soft and hard magnetic materials are executed. The characteristics of existing prototypes are shown and the results of our own research are presented. The article presents a study of the effect of the intermediate magnetic circuit length on the characteristics of magnetic gripper, the principle of which is based on the control of the field of a permanent magnet. The gripper based on this principle of action does not require constant energy expenditures to maintain both on and off states. The description of the magnetic gripper design and the design of the test bench is given, as well as the results of a series of experiments to determine the strength of the release of the gripper at different lengths of the magnetic circuit in the on and off states, followed by statistical processing of the data. The intervals of the ranges in which with a high degree of probability there will be a value of the gripping disengagement force for various lengths of the intermediate magnetic circuit are identified. The nature of the distribution of a random variable, which is the force of decoupling of the gripper, is determined. The dependences of the gripper decoupling force on the length of the intermediate magnetic circuit for each of the gripper states are constructed. It has been established that a decrease in the length of the intermediate magnetic circuit is the cause of a decrease in the gripping adhesion force. Plots of the dependence of the gripper decoupling force were constructed using the modes of the force values varieties to visually display the experimental results. The maximum adhesion force of magnetic pickup – 9.5 kg – was achieved with an intermediate magnetic core length of 50 mm, the minimum with a length of 25 mm – 5.6 kg.
References
- Likhterman V.A., Shiryaev R.E., Sandler R.A., Tsypin E.F., Assanovich K.S., Kozin V.Z. Ability to automate the process of sorting sponge titanium. Zapiski Gornogo instituta. 1978. Vol. 78, p. 111-113 (in Russian).
- Maksarov V.V., Olt Yu. Dynamic stabilization of machining process based on local metastability in controlled robotic systems of CNC machines. Zapiski Gornogo instituta. 2017. Vol. 226, p. 446-451. DOI: 10.25515/PMI.2017.4.446
- Cunha M.P., Foelen Y., van Raak R.J.H. and others. An Untethered Magnetic- and Light-Responsive Rotary Gripper: Shedding Light on Photoresponsive Liquid Crystal Actuators. Advanced Optical Materials. 2019. Vol. 7. DOI: 10.1002/adom.201801643
- Chen C., Chung T. A novel thermomagnetic gripper: IEEE International Magnetics Conference (INTERMAG). 11-15 May 2015. Beijing, China. 2015. DOI: 10.1109/INTMAG.2015.7157658
- Pavliuk N.A., Krestovnikov K.D., Pykhov D.E., Budkov V.U. Design and Operation Principles of the Magnetomechanical Connector of the Module of the Mobile Autonomous Reconfigurable System: Interactive Collaborative Robotics: Third International Conference. Leipzig, Germany, 2018. Proceedings, p. 202-212. DOI: 10.1007/978-3-319-99582-3_21
- Peidró A., Tavakoli M., Marín J.M., Reinoso Ó. Design of compact switchable magnetic grippers for the HyReCRo structure-climbing robot. Mechatronics. 2019. Vol. 59, p. 199-212.
- Fiaz U.A., Abdelkader M., Shamma J.S. An Intelligent Gripper Design for Autonomous Aerial Transport with Passive Magnetic Grasping and Dual-Impulsive Release: IEEE/ASME International Conference on Advanced Intelligent Mechatronics. 9-12 July 2018. Auckland, New Zeland. 2018, p. 1027-1032. DOI: 10.1109/AJM.2018.8452383
- Chavez Vega J., Kaufhold T., Böhm V. et al. Field-induced plasticity of magneto-sensitive elastomers in context with soft robotic gripper applications. PAMM. 2017. Vol. 17. N 1, p. 23-26. DOI: 10.1002/pamm.201710007
- Kwok S.W., Morin S.A., Mosadegh B. et al. Magnetic assembly of soft robots with hard components. Advanced Functional Materials. 2014. Vol. 24. N 15, p. 2180-2187. DOI: 10.1002/adfm.201303047
- Naimzad A., Ghodsi M., Hojjat Y., Maddah A. MREs development and its application on miniature gripper. Proceeding of International Conference on Advanced Materials Engineering. 2011. Vol. 15, p. 75-80.
- Okatani Y., Nishida T., Tadakuma K. Development of universal robot gripper using MRα fluid: Joint 7th International Conference on Soft Computing and Intelligent Systems (SCIS) and 15th International Symposium on Advanced Intelligent Systems (ISIS).
- -6 December 2014. Kitakyushu, Japan. 2014, p. 231-235. DOI: 10.1109/SCIS-ISIS.2014.7044707
- Pavliuk N.A., Krestovnikov K.D., Pykhov D.E. Mobile Autonomous Reconfigurable System. Problemele Energeticii Regionale. 2018. Vol. 1, p. 125-135. DOI: 10.5281/zenodo.1217296
- Pukelsheim F. The three sigma rule. The American Statistician. 1994. Vol. 48. Iss. 2, p. 88-91.
- Tai K., El-Sayed A.-R., Shahriari M., Biglarbegian M., Mahmud S. State of the art robotic grippers and applications. Robotics. 2016. Vol. 5. N 11. DOI: 10.3390/robotics5020011
- Sturges H. The choice of a class-interval. Journal of the American Statistical Association. Vol. 21. N 153, p. 65-66.
- Furuya Y., Okazaki T., Wuttig M. et al. Thermo- and Magneto-elastic Metalic Actuator/Sensor Materials). Materials Technology. 2004. № 19 (2), p. 101-108. DOI: 10.1080/10667857.2004.11753072
- Xu J., Kong Y., Zhu Z. Nonlinear dynamic characteristics of MSMA gripper. International Journal of Applied Electromagnetics and Mechanics. 2016. Vol. 52. N 3-4, p. 959-966. DOI: 10.3233/JAE-162046