Abstract
A MEMS-based gripper tool to handle a thin, larger surface area component is not available in the market, which is capable of functioning even in the moisture, as the tool is devised by means of a polymer material. The proposed device has a default in plane displacement of less than 500 microns where the tools are completely in closed position. The device works on the principle of a push-pull-based actuation method where it can hold components of thickness of about 300 microns, where the entire device is controlled precisely by a screw-based actuation mechanism. The device can be fabricated by a rapid prototyping process, and structural mechanics simulation study is carried out with COMSOL Multiphysics simulation software for identifying the appropriate results. Various polymers were chosen, comparison of their results in terms of displacement and stress-strain components was obtained, and the suitable material is identified here to be as poly tetra fluoro ethylene (PTFE). For an applied pressure of 0.1 Pa, verowhite produces a displacement of 6.94 × 10−7 μm by sustaining a stress around 1.09 N/m2, which is the best among the materials under consideration.
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Acknowledgement
We thank Saveetha MEMS Design Centre, Saveetha Engineering College, Chennai for providing the facility to complete this project successfully.
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Aravind, T., Praveen Kumar, S., Dinesh Ram, G., Lingaraja, D. (2021). Analysis of Material Profile for Polymer-Based Mechanical Microgripper for Thin Plate Holding. In: Priya, E., Rajinikanth, V. (eds) Signal and Image Processing Techniques for the Development of Intelligent Healthcare Systems. Springer, Singapore. https://doi.org/10.1007/978-981-15-6141-2_6
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