Abstract
This paper presents a novel 3-degree-of-freedom (DOF) large range compliant parallel mechanism (CPM) with a 3-PPR configuration. Each PPR chain is constituted of two mutually perpendicular prismatic (P) joints and one revolute (R) joint. These joints are composed of leaf-type hinges to realize large motion range with the existence of distributed compliance. Based on the compliant parallelogram mechanism, two kinds of optimized translational joints with high cross-axis stiffness and one precise rotary pivot are proposed. Pseudo-body method is implemented to establish the quantitative kinematic model of the proposed mechanism. Finite element analysis is carried out to validate the correctness of the model and analyze the modal of the CPM. Utilizing the VCMs as the actuators, experimental tests are conducted to reveal the dynamic performance of the CPM with PID controller. The results demonstrate that the proposed platform can realize precise positioning within a large XYθz motion range and possess a high bandwidth about 35 Hz.
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Acknowledgment
This work is supported by NSFC-Zhejiang Joint Fund for the Integration of Industrialization and Informatization (U1609206), Ningbo Natural Science Foundation (No. 2018A610150) and the Innovation Team of Key Components and Technology for the New Generation Robot under Grant 2016B10016.
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Yang, B., Zhang, C., Yu, H., Yang, M., Yang, G., Chen, S. (2019). Design and Analysis of a Planar 3-DOF Large Range Compliant Mechanism with Leaf-Type Flexure. In: Yu, H., Liu, J., Liu, L., Ju, Z., Liu, Y., Zhou, D. (eds) Intelligent Robotics and Applications. ICIRA 2019. Lecture Notes in Computer Science(), vol 11740. Springer, Cham. https://doi.org/10.1007/978-3-030-27526-6_35
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DOI: https://doi.org/10.1007/978-3-030-27526-6_35
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