Deriving and analyzing the effective parameters in microgrippers performance

Nikoobin, A.; Niaki, Mostafa Hassani

doi:10.1016/j.scient.2012.10.020

Cited by 45 publications

(23 citation statements)

References 14 publications

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“…Compared with other driving modes, the piezoelectric drive has the advantages of small size, large output force, high sensitivity, and no gap. Therefore, it is more widely used as the actuators of microgrippers [18,19].…”

Section: Introductionmentioning

confidence: 99%

Design of a Compliant Mechanism Based Four-Stage Amplification Piezoelectric-Driven Asymmetric Microgripper

Chen

Deng

et al. 2019

Micromachines

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The existing symmetrical microgrippers have larger output displacements compared with the asymmetrical counterparts. However, the two jaws of a symmetrical microgripper are less unlikely to offer the same forces on the two sides of a grasped micro-object due to the manufacture and assembly errors. Therefore, this paper proposes a new asymmetric microgripper to obtain stable output force of the gripper. Compared with symmetrical microgrippers, asymmetrical microgrippers usually have smaller output displacements. In order to increase the output displacement, a compliant mechanism with four stage amplification is employed to design the asymmetric microgripper. Consequently, the proposed asymmetrical microgripper possesses the advantages of both the stable output force of the gripper and large displacement amplification. To begin with, the mechanical model of the microgripper is established in this paper. The relationship between the driving force and the output displacement of the microgripper is then derived, followed by the static characteristics’ analysis of the microgripper. Furthermore, finite element analysis (FEA) of the microgripper is also performed, and the mechanical structure of the microgripper is optimized based on the FEA simulations. Lastly, experimental tests are carried out, with a 5.28% difference from the FEA results and an 8.8% difference from the theoretical results. The results from theoretical calculation, FEA simulations, and experimental tests verify that the displacement amplification ratio and the maximum gripping displacement of the microgripper are up to 31.6 and 632 μm, respectively.

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Section: Introductionmentioning

confidence: 99%

Design of a Compliant Mechanism Based Four-Stage Amplification Piezoelectric-Driven Asymmetric Microgripper

Chen

Deng

et al. 2019

Micromachines

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“…In the literature, the research works of compliant mechanisms in micro-/nano-scale manipulation have been well developed and concluded [11][12][13][14][15][16][17]. In this paper, by surveying the related research in recent years and summarizing the methods, processes and components used in the designs, a design flow is proposed by considering the main design factors.…”

Section: Introductionmentioning

confidence: 99%

Survey on Recent Designs of Compliant Micro-/Nano-Positioning Stages

2018

Actuators

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Micromanipulation is a hot topic due to its enabling role in various research fields. In order to perform a high precision operation at a small scale, compliant mechanisms have been proposed and applied for decades. In microscale manipulation, micro-/nano-positioning is the most fundamental operation because a precision positioning is the premise of subsequent operations. This paper is concentrated on reviewing the state-of-the-art research on complaint micro-/nano-positioning stage design in recent years. It involves the major processes and components for designing a compliant positioning stage, e.g., actuator selection, stroke amplifier design, connecting scheme of the multi-DOF stage and structure optimization. The review provides a reference to design a compliant micro-/nano-positioning stage for pertinent applications.

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“…Compared with other contact and contactless micro manipulation and assembly techniques, such as optical, electrostatic, Bernoulli, ultrasonic and magnetic, microgrippers are more preferred, because of their ability to grasp different shaped objects with high precision and low cost [8]. They have many applications in microelectronics, material science, biology and tissue engineering and etc [9].…”

Section: Introductionmentioning

confidence: 99%

Design of a Piezoelectric-Actuated Microgripper With a Three-Stage Flexure-Based Amplification

Wang

Liang

Tian

et al. 2015

IEEE/ASME Trans. Mechatron.

159

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Dawei. (2015) Design of a Piezoelectric-actuated microgripper with a three-stage flexure-based amplification. IEEE/ASME Transactions on Mechatronics, 20 (5 Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way.Publisher's statement: "© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works." http://dx.doi.org/10.1109/TMECH.2014.2368789 A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription.

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Deriving and analyzing the effective parameters in microgrippers performance

Cited by 45 publications

References 14 publications

Design of a Compliant Mechanism Based Four-Stage Amplification Piezoelectric-Driven Asymmetric Microgripper

Design of a Compliant Mechanism Based Four-Stage Amplification Piezoelectric-Driven Asymmetric Microgripper

Survey on Recent Designs of Compliant Micro-/Nano-Positioning Stages

Design of a Piezoelectric-Actuated Microgripper With a Three-Stage Flexure-Based Amplification

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