Optics and Precision Engineering, Volume. 32, Issue 12, 1891(2024)

Optimal design and experimentation of a low-parasitic performance-balanced compliant guide platform

Chengxin ZHENG1, Xiaoqing SUN1,2、*, Zhihong SUN1, Yijie MIAO1, and Xiusong HOU3
Author Affiliations
  • 1College of Mechanical Engineering, Donghua University, Shanghai20620, China
  • 2Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai0160, China
  • 3National Innovation Center of Advanced Dyeing & Finishing Technology, Tai'an271000, China
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    Inspired by the movement process and symmetrical structure of the hind limbs of frogs. A compliant tool guide platform that combines long stroke and high working frequency was proposed. The problems of short working stroke of the direct drive type and low working frequency of the amplified type in the tool guiding platform were solved. First of all, a preliminary model of the compliant guide platform was proposed. The lengths of important rods were determined. In the second place, multi-objective optimization design was carried out on the preliminary model using finite element analysis. And the entropy weight method and the distance between superior and inferior solutions (TOPSIS) were used to rank the scores. On this basis, the structure was further optimized for the multi-operational topology using finite element analysis. In the end, the test prototype was machined for experimental testing. The finite element analysis and experimental results show that the amplification ratio of the guide platform is 4.67. And the maximum stroke can reach about 90 μm. The first-order natural frequency is 1 765 Hz. The results of experimental tests on amplification ratio and natural frequency indicate that the proposed tool guide platform is capable of achieving long stroke and high frequency motion. And the X-axis parasitic error is 0.002 2%. This can be seen as the presence of low parasitic displacements in the guide platform. At the same time, the resolution of the guide platform can reach the sub-micron level. And the trajectory tracking error is about 2%. Combining the simulation and experimental test results, the proposed compliant tool guide platform can achieve precision guided motion.

    Keywords
    Tools

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    Chengxin ZHENG, Xiaoqing SUN, Zhihong SUN, Yijie MIAO, Xiusong HOU. Optimal design and experimentation of a low-parasitic performance-balanced compliant guide platform[J]. Optics and Precision Engineering, 2024, 32(12): 1891

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    Paper Information

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    Received: Mar. 7, 2024

    Accepted: --

    Published Online: Aug. 28, 2024

    The Author Email: SUN Xiaoqing (sunxq@dhu.edu.cn)

    DOI:10.37188/OPE.20243212.1891

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