Feed and align microparts on symmetrically vibrating saw-tooth surface

Le, Phuong Hoai; Mitani, Atsushi; Xuan, Thien; Hirai, Shinichi

doi:10.1109/wcica.2014.7053615

Cited by 3 publications

(5 citation statements)

References 16 publications

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“…The proposed method of omnidirectional manipulation was experimentally tested with multilayer ceramic capacitors (MLCC) as such particles are widely used in microelectronics [ 42 , 43 , 44 , 53 , 54 ]. The developed setup was tested using 0402- and 0603-type MLCCs (Mouser Electronics, Mansfield, MA, USA).…”

Section: Resultsmentioning

confidence: 99%

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Omnidirectional Manipulation of Microparticles on a Platform Subjected to Circular Motion Applying Dynamic Dry Friction Control

et al. 2022

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Currently used planar manipulation methods that utilize oscillating surfaces are usually based on asymmetries of time, kinematic, wave, or power types. This paper proposes a method for omnidirectional manipulation of microparticles on a platform subjected to circular motion, where the motion of the particle is achieved and controlled through the asymmetry created by dynamic friction control. The range of angles at which microparticles can be directed, and the average velocity were considered figures of merit. To determine the intrinsic parameters of the system that define the direction and velocity of the particles, a nondimensional mathematical model of the proposed method was developed, and modeling of the manipulation process was carried out. The modeling has shown that it is possible to direct the particle omnidirectionally at any angle over the full 2π range by changing the phase shift between the function governing the circular motion and the dry friction control function. The shape of the trajectory and the average velocity of the particle depend mainly on the width of the dry friction control function. An experimental investigation of omnidirectional manipulation was carried out by implementing the method of dynamic dry friction control. The experiments verified that the asymmetry created by dynamic dry friction control is technically feasible and can be applied for the omnidirectional manipulation of microparticles. The experimental results were consistent with the modeling results and qualitatively confirmed the influence of the control parameters on the motion characteristics predicted by the modeling. The study enriches the classical theories of particle motion on oscillating rigid plates, and it is relevant for the industries that implement various tasks related to assembling, handling, feeding, transporting, or manipulating microparticles.

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Section: Resultsmentioning

confidence: 99%

“…Asymmetries created in such a way can be designated as force asymmetries. Mitani et al [ 42 , 43 , 44 ] applied an oscillating platform with a textured surface for the feeding of microparts. The motion of the microparts was achieved through a force asymmetry created by the anisotropic friction properties of the textured surface.…”

Section: Introductionmentioning

confidence: 99%

Omnidirectional Manipulation of Microparticles on a Platform Subjected to Circular Motion Applying Dynamic Dry Friction Control

et al. 2022

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“…A similar approach was applied for manipulation of microminiature bodies. General multilayer ceramic capacitors (MLCC) were selected for manipulation as these microminiature bodies are widely used in microelectronics [29][30][31][32]41,42]. The developed experimental setup was tested using 0402-, 0805-, and 1206-type MLCCs (Samsung, Suwon, South Korea) (Figure 5, ( 10)).…”

Section: Methodology Of Experimental Investigationmentioning

confidence: 99%

“…It was demonstrated that a required average velocity can be maintained through temporal asymmetry by tuning the amplitude and frequency of the platform excitation under the given conditions of dry friction. Mitani et al [ 29 , 30 , 31 , 32 ] proposed a vibrating platform with an asymmetric microfabricated saw-tooth surface for manipulation of microparts such as multilayer ceramic capacitors. Microparts were able to move directionally due to the asymmetric adherence to the microfabricated surface.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of Miniature and Microminiature Bodies on a Harmonically Oscillating Platform by Controlling Dry Friction

et al. 2021

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Currently used nonprehensile manipulation systems that are based on vibrational techniques employ temporal (vibrational) asymmetry, spatial asymmetry, or force asymmetry to provide and control a directional motion of a body. This paper presents a novel method of nonprehensile manipulation of miniature and microminiature bodies on a harmonically oscillating platform by creating a frictional asymmetry through dynamic dry friction control. To theoretically verify the feasibility of the method and to determine the control parameters that define the motion characteristics, a mathematical model was developed, and modeling was carried out. Experimental setups for miniature and microminiature bodies were developed for nonprehensile manipulation by dry friction control, and manipulation experiments were carried out to experimentally verify the feasibility of the proposed method and theoretical findings. By revealing how characteristic control parameters influence the direction and velocity, the modeling results theoretically verified the feasibility of the proposed method. The experimental investigation verified that the proposed method is technically feasible and can be applied in practice, as well as confirmed the theoretical findings that the velocity and direction of the body can be controlled by changing the parameters of the function for dynamic dry friction control. The presented research enriches the classical theories of manipulation methods on vibrating plates and platforms, as well as the presented results, are relevant for industries dealing with feeding, assembling, or manipulation of miniature and microminiature bodies.

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“…Umbanhowar et al [40] applied textured surfaces such as micromachined silicon and fabrics to create friction-induced velocity fields on the surface of an oscillating platform for vibratory manipulation of parts. Mitani et al [41][42][43] demonstrated that the directional motion of microparts can be achieved on a symmetrically oscillating platform with a textured surface for feeding applications. Chen et al [44] showed that the surface with fin-like asperities of a longitudinal oscillating trough can be applied for the directional motion of particles achieved due to the net force created by the finlike asperities.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Motion Characteristics of Parts on a Platform Subjected to Planar Oscillations

Kilikevičius,

Liutkauskienė,

Česnavičius

et al. 2023

Applied Sciences

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Positioning applications are very important in a variety of industrial processes, including automatic assembly. This paper proposes a technique for positioning applications that involves employing a platform subjected to planar oscillations along circular, elliptical, and complex trajectories. Dynamic and mathematical models of the motion of a part on the platform were developed to investigate the motion characteristics of the part. The research showed that when the platform was excited in two perpendicular directions by sinusoidal waves, different trajectories of the part’s motion could be obtained by controlling excitation parameters such as the frequencies and amplitudes of the waves and the phase shift between the waves. Furthermore, by adjusting these parameters, the average displacement velocity of the part could be controlled. The results demonstrate that the part can be moved in any direction at a given velocity and can be subjected to complex dense positioning trajectories. Therefore, such a platform can be applied in feeding, positioning, and manipulation tasks.

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Feed and align microparts on symmetrically vibrating saw-tooth surface

Cited by 3 publications

References 16 publications

Omnidirectional Manipulation of Microparticles on a Platform Subjected to Circular Motion Applying Dynamic Dry Friction Control

Omnidirectional Manipulation of Microparticles on a Platform Subjected to Circular Motion Applying Dynamic Dry Friction Control

Manipulation of Miniature and Microminiature Bodies on a Harmonically Oscillating Platform by Controlling Dry Friction

Investigation of the Motion Characteristics of Parts on a Platform Subjected to Planar Oscillations

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