Study on Mechanical Properties of Suspension Mechanism in Oscillating-bar Forging Manipulator

doi:10.3901/JME.2025.01.232

Abstract

Abstract: The forging manipulator has the characteristics of large inertia and strong impact, so it is necessary to study the force characteristics of each component of the manipulator. In order to study the force relationship between the buffer cylinder and the horizontal cylinder, the motion analysis of the suspension mechanism was carried out to solve the position of each rod, and the mapping relationship between the displacement of the clamp rod and the displacement of the two cylinders is established. The traditional force analysis method is used to analyze rods of the suspension system, and the force model of the buffer cylinder and the horizontal cylinder is established. The effect of each parameter on the force change of the two cylinders are analyzed by MATLAB. On the basis of the above research, the Particle Swarm Optimization is selected to optimize the key parameters to obtain the set of non-inferior solution that meets the conditions, and the optimal solution are sought from the set by the Technique for Order Preference by Similarity to Ideal Solution. The optimization results show that the reasonable selection of parameters can effectively reduce the force of the lifting cylinder and change the influence of the buffer cylinder on the force of the lifting cylinder. The result provides a feasible idea for further optimizing the buffer performance of the buffer cylinder, which is of great significance for improving the force bearing performance of the manipulator and reducing energy consumption.

Key words: forging manipulator, lift cylinder, buffer cylinder, force characteristic, parameters optimization

CLC Number:

TG315

ZHANG Miaomiao, LIU Yanyan, YANG Jin, YANG Xiaobo, ZHANG Qiliang. Study on Mechanical Properties of Suspension Mechanism in Oscillating-bar Forging Manipulator[J]. Journal of Mechanical Engineering, 2025, 61(1): 232-242.

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