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A study on designing spindle stage using optimization of flexure  

Park, Jaehyun (Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology)
Kim, Hyo-Young (Department of Mechatronics Engineering, Tech University of Korea (TU Korea))
Yoo, Hyeongmin (School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH))
Publication Information
Design & Manufacturing / v.16, no.3, 2022 , pp. 22-27 More about this Journal
Abstract
The demand for new processing technology that can improve productivity is increasing in industries that require large-scale and various products. In response to this demand, a robot machining system with flexibility is required. Because of the low rigidity of the robot, the robot machining system has a large error during machining and is vulnerable to vibration generated during machining. Vibration generated during machining deteriorates machining quality and reduces the durability of the machine. To solve this problem, a stage for fixing the spindle during machining is required. In order to compensate for the robot's low rigidity, a system combining a piezoelectric actuator for generating a large force and a guide mechanism to actuate with a desired direction is required. Since the rigidity of flexible hinges varies depending on the structure, it is important to optimal design the flexible hinge and high-rigidity system. The purpose of this research is to make analytic model and optimize a flexible hinge and to design a high rigidity stage. In this research, to design a flexible hinge stage, a concept design of system for high rigidity and flexure hinge modeling is carried out. Based on analytic modeling, the optimal design for the purpose of high rigidity is finished and the optimal design results is used to check the error between the modeling and actual simulation results.
Keywords
Flexure; Modeling; Optimal design; Simulation; Stage;
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