Study on finite element simulation and experiment based on the design of zero-point clamping system

IF 2.3 4区工程技术 Q2 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pub Date : 2024-09-07 DOI:10.1177/09544089241275866

Youkang Yin, Zheng Ma, Weiwei Ming, Jinyang Xu, Qinglong An, Ming Chen, Wei Wu, Yuankun Sun

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引用次数: 0

Abstract

The zero-point positioning system (Z-PCS) is more suitable for the increasingly common production modes of multiple types, small batches, and changing conditions than to conventional fixtures. Currently, the Z-PCS cannot provide sufficient clamping force, and the design of the positioning structure is prone to over-positioning. The working principles of each functional module in the system are unclear, making it difficult to promote product design optimization and troubleshooting. This article aims to design a high-performance Z-PCS, revealing the structural composition and working principle of the system, including the clamping structure, positioning structure, and air circuitry arrangement. During the design process, the finite element numerical calculations were adopted to verify the mechanical properties of each key load-bearing component. Finally, the designed product underwent positioning accuracy and clamping force testing. The results indicate that the Z-PCS designed in this article can provide a clamping force of at least 73.7 kN and control the repetitive positioning error below 0.002 mm. Micro-deformation grooves can be adaptively added to compensate for the over-positioning error. Heat-treated martensitic-type stainless steel is an ideal material for constructing the body of a high-performance Z-PCS.

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基于零点夹紧系统设计的有限元模拟和实验研究

与传统夹具相比，零点定位系统（Z-PCS）更适合日益普遍的多类型、小批量和条件多变的生产模式。目前，Z-PCS 无法提供足够的夹紧力，而且定位结构的设计容易造成过度定位。系统中各功能模块的工作原理不明确，难以促进产品设计优化和故障排除。本文以设计高性能 Z-PCS 为目标，揭示了系统的结构组成和工作原理，包括夹紧结构、定位结构和气路布置。在设计过程中，采用有限元数值计算验证了各关键承重部件的机械性能。最后，对设计产品进行了定位精度和夹紧力测试。结果表明，本文设计的 Z-PCS 可以提供至少 73.7 kN 的夹紧力，并将重复定位误差控制在 0.002 mm 以下。微变形槽可自适应添加，以补偿过度定位误差。热处理马氏体型不锈钢是制造高性能 Z-PCS 主体的理想材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 工程技术-工程：机械

CiteScore

3.80

自引率

16.70%

发文量

370

审稿时长

6 months

期刊介绍： The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.