Development of a high precision flexure-based microgripper |
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Authors: | Mohd Nashrul Mohd Zubir Bijan Shirinzadeh |
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Affiliation: | aRobotics and Mechatronics Research Laboratory, Department of Mechanical Engineering, Monash University, 3800 Clayton, Melbourne, Victoria, Australia |
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Abstract: | This paper presents the design and development of a high precision microgripper for micromanipulation. The design is based on a hybrid flexure-based compliant mechanism and a bias spring structure which render high fidelity and inherent mechanical advantages. Finite element analysis (FEA) was conducted to evaluate responses of the model under specified load and displacement to investigate optimum design of the model. The prototype of the proposed microgripper was fabricated using electro-discharge machining (EDM) process. An experimental study of the performance was carried out and the results are presented. The experimental results are also compared with the computational analysis results. The results show that a high level of displacement amplification and a maximum stroke of 100 μm can be achieved. |
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Keywords: | Microgripper Piezoelectric actuator Compliant mechanism Bias spring |
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