[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29, No. 6, pp.457-465

ISSN: 2508-5093 (Print) 2508-5107 (Online)

Print publication date 15 Dec 2020

Received 23 Oct 2020 Revised 02 Nov 2020 Accepted 03 Nov 2020

DOI: https://doi.org/10.7735/ksmte.2020.29.6.457

비접촉식 헤드의 박판 파지 특성에 관한 실험 및 수치적 평가해석

김준현^a ; 윤기원^b ; 성재용^c^{, *}

Experimental and Numerical Analyses of Thin Plate Gripping Characteristics with Non-Contact Head

Joon Hyun Kim^a ; Giwon Yun^b ; Jaeyong Sung^c^{, *}

aNDT Research Center, Seoul National University of Science & Technology
bGraduate School, Department of Mechanical Engineering, Seoul National University of Science & Technology
cDepartment of Mechanical and Automotive Engineering, Seoul National University of Science & Technology

Correspondence to: ^*Tel: +82-2-970-6398 E-mail address: jysung@seoultech.ac.kr (Jaeyong Sung).

Abstract

In this study, a vortex cup and non-contact gripping were considered with commercial specifications for large flat plate application. The stable gripping force range of the cup and non-contact gap that maintains balance between vacuum and thrust were examined numerically and experimentally. In the calculation model, a gripping force of 8 to 14 N and an effective non-contact gap of 0.7 mm were derived according to the flow rate (up to 4,38e-4 kg/s). In actual floating distance measurements using a displacement sensor, the average non-contact gap was 0.6 mm. Further, the flatness could be improved only when using an appropriate flow rate and adjusting the interval between cups. When the gripping force of the cup was greater within the non-contact possibility range than the weight of the sample, then the non-contact gripping of the large plates was considered efficient while ensuring adequate arrangement conditions.

Keywords:

Air head, Gripper, Non-contact, Thin plate, Vortex cup

Acknowledgments

이 연구는 2019년 한국연구재단 개인기초연구사업(기본연구) 과 제번호 2019R1F1A1056931의 연구비 지원으로 수행되었습니다.

References

Kim, J. H., Sung, J., 2019, Influence of Air Head Shape on Lifting Force and Stability of Swirl Flow in a Vortex-Type Non-Contact Gripper, Journal of the Korean Society of Manufacturing Technology Engineers, 28:4 224-231. [https://doi.org/10.7735/ksmte.2019.28.4.224]
SMC viewed 13 Jul. 2020, Web catalogue.
Fantoni, G., Capiferri, S., Tilli, J., 2014, Method for Supporting the Selection of Robot Grippers, Procedia CIRP, 21 330-335,https://doi.org/10.1016/j.procir.2014.03.152, . [https://doi.org/10.1016/j.procir.2014.03.152]
Li, X., Kagawa, T., 2014, Theoretical and Experimental Study of Factors Affecting the Suction Force of a Bernoulli Gripper, Journal of Engineering Mechanics, 140:9 04014066. [https://doi.org/10.1061/(ASCE)EM.1943-7889.0000774]
Dini, G., Fantoni, G., Failli, F., 2009, Grasping Leather Plies by Bernoulli Grippers, CIRP Annuals - Manufacturing Technology, 58 21-24. [https://doi.org/10.1016/j.cirp.2009.03.076]
Li, X., Kagawa, T., 2013, Development of a New Noncontact Gripper Using Swirl Vanes, Robotics and Computer-Integrated Manufacturing, 29 63-70. [https://doi.org/10.1016/j.rcim.2012.07.002]
Zhao, J., Li, X., 2016, Effect of Supply Flow Rate on Performance of Pneumatic Non-Contact Gripper Using Vortex Flow, Experimental Thermal and Fluid Science, 79 91-100. [https://doi.org/10.1016/j.expthermflusci.2016.06.020]
Kim, J., Jeong, Y., Lee, T., Kim, T., Jung H., 2013, Non-Contact Level on Air Levitation Table with Porous Chamber Array, Journal of the Korean Society of Manufacturing Technology Engineers, 22:6 913-920. [https://doi.org/10.7735/ksmte.2013.22.6.913]
Lee, T., Yu, J., Jung H., Kim, J.-H., Kim, J., 2013, Development of the Air Floating Conveyor System for the Large Glass Sheet, Journal of the Korean Society of Manufacturing Technology Engineers, 22:4 635-642. [https://doi.org/10.7735/ksmte.2013.22.4.635]
Li, X., Kawashima, K., Kagawa, T., 2008, Analysis of Vortex Levitation, Experimental Thermal and Fluid Science, 32 1448-1454. [https://doi.org/10.1016/j.expthermflusci.2008.03.010]
Savkiv, V., Mykhailyshyn, R., Duchon, F., Mikhalishin, M., 2017, Energy Efficiency Analysis of the Manipulation Process by the Industrial Objects with the Use of Bernoulli Gripping Devices, Journal of Electrical Engineering, 68:6 496-502. [https://doi.org/10.1515/jee-2017-0087]
Savkiv, V., Mykhailyshyn, R., Duchon, F., Fendo, O., 2017, Justification of Design and Parameters of Bernoulli-Vacuum Gripping Device, International Journal of Advanced Robotic systems, November-December, 1-10. [https://doi.org/10.1177/1729881417741740]
Davis, S., Gray, J. O., Caldwell., D. G., 2008, An End Effector Based on the Bernoulli Principle for Handling Sliced Fruit and Vegetables, Robotics and Computer-Integrated Manufacturing, 24 249-257. [https://doi.org/10.1016/j.rcim.2006.11.002]
Kim, J. H., Lee, S.-J., 2015, Configuration of Noncontact Grip System for Carrying Large Flat Sheets Using Vacuum Air Heads, Journal of Tribology, 137:4 041103. [https://doi.org/10.1115/1.4030710]

Joon Hyun Kim

Research Professor in NDT Research Center, Seoul National University of Science and Technology.His research interest is Tribology.

E-mail: joonk61@seoultech.ac.kr

Giwon Yun

Graduated M.Sc. Program in the Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology.His research interest is Visualization and Fluid Mechanics.

E-mail: yg6223@naver.com

Jaeyong Sung

Professor in the Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology.His research interest is Flow Visualization.

E-mail: jysung@seoultech.ac.kr