Abstract
A two-degree-of-freedom seven-bar three-axis fixed composite mechanism was introduced. The mechanism was divided into two closed loops to provide the position and direction of movement for the end effector components. Two four-bar analytic equations were constructed through complex number operations, the closed kinematics equations of the mechanism were established, and then converted into a matrix format. The Jacobian matrix was further deduced, and the geometrical analysis and solution of the mechanism model were carried out, and the mathematical model was analyzed. The Jacobian matrix was used to establish a mathematical model, derive the working space range of the mechanism, establish a kinematics model, and obtain the end-effector position, speed and acceleration curve graph. The purpose was to accurately calculate the energy parameters of the mechanism at work. The simulation results showed that when the end-effector moved to the lowest position, the speed was zero, the acceleration change was small, and the impact was minimal. The corrugated cardboard box flap can be folded to the horizontal direction without causing damage to the surface of the box. The correctness and feasibility of the mathematical model was verified by energy parameters, which provided the basic principle analysis for the organization and provided a theoretical reference for practical applications.
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Acknowledgements
This work was finally supported by the National Natural Science Foundation of China(Grant No.31660239).
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Zhenwei, X., Yutan, W. (2023). Geometry and Kinematics Analysis of Seven-Bar Three-Axis Fixed Compound Mechanism. In: Ismail, M.Y., Mohd Sani, M.S., Kumarasamy, S., Hamidi, M.A., Shaari, M.S. (eds) Technological Advancement in Mechanical and Automotive Engineering. ICMER 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-1457-7_38
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DOI: https://doi.org/10.1007/978-981-19-1457-7_38
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