協作式焊接機器人的永磁基座恢復力模型研究
首發時間:2025-11-11
徐建秀(1996-),男,工程師,主要研究方向:鋼結構施工技術
畢強 1 郭旺 1 張騰騰 1 吳振坤 1 王晶 1摘要:協作式焊接機器人在復雜工況下移動作業時,地面不平或自身運動產生的豎向振動會嚴重影響其焊接精度與穩定性。為解決此問題,本文提出一種集成于協作式焊接機器人基座的永磁基座,并深入研究其恢復力模型。該裝置利用永磁體間的斥力與支撐彈簧的拉力并聯,實現了工作點附近的準零剛度,從而有效抑制豎向振動。首先,闡述了減振缸的結構設計與工作原理。其次,基于電磁學理論,推導了永磁體氣隙磁密與斥力的計算公式,并結合彈簧力學,建立了完整的恢復力本構模型。本研究為提升協作式焊接機器人在動態作業中的穩定性提供了解決方案和理論依據。
關鍵詞: 焊接技術與工程 協作式焊接機器人 恢復力模型 永磁基座
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Collaborative Welding Robot Base Vibration Model
徐建秀(1996-),男,工程師,主要研究方向:鋼結構施工技術
Bi Qiang 1 Guo Wang 1 Zhang Tengteng 1 Wu Zhenkun 1 Wang Jing 1Abstract:When collaborative welding robots move and operate in complex working conditions, uneven ground or vertical vibrations generated by their own motion can seriously affect their welding accuracy and stability. To address this issue, this paper proposes a permanent magnet base integrated into the base of a collaborative welding robot and conducts in-depth research on its restoring force model. This device utilizes the repulsion between permanent magnets and the tension of supporting springs in parallel to achieve quasi zero stiffness near the working point, effectively suppressing vertical vibration. Firstly, the structural design and working principle of the vibration reduction cylinder were explained. Secondly, based on electromagnetic theory, the calculation formulas for the magnetic density and repulsion of permanent magnet air gaps were derived, and combined with spring mechanics, a complete constitutive model for restoring force was established. This study provides a solution and theoretical basis for improving the stability of collaborative welding robots in dynamic operations.
Keywords: welding technology and engineering collaborative welding robot restoring force model permanent magnet base
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