本文選題：大型部件 + 對接裝配　； 參考：《機械工程學報》2017年23期

【摘要】：火箭、飛機、艦船等大型產品結構復雜,多為分段制造后進行總裝對接,此類分段大部件對接質量直接影響總體裝配質量。傳統(tǒng)的對接裝配工藝自動化程度低、過度依賴專用檢具和人工經驗。部件對接裝配最佳匹配位置的確定,是提高大部件對接裝配效率和質量關鍵之一,基于先進測量設備和自動化定位裝備,建立面向大部件最優(yōu)匹配位置的綜合評價指標體系。首先,基于點集匹配、直線對齊、平面匹配和曲面匹配的數學模型,建立大部件對接結構中各關鍵特征的裝配準確度評價指標;其次,從制造準確度和協(xié)調準確度兩個方面構建大部件對接裝配最優(yōu)匹配位置的綜合評價指標體系,為部件制造質量評估提供有效的評價方法,也為部件之間最優(yōu)匹配位置求解提供目標;最后,基于實驗室自主研發(fā)的大部件對接平臺,以筒段模擬件對接為研究對象,驗證了這一綜合評價指標體系在指導大部件裝配對接的有效性,與傳統(tǒng)工藝相比,可直接保證最優(yōu)對接位置,提高裝配質量。
[Abstract]:The structure of rocket, aircraft, ship and other large products is complex, most of them are assembled and docked after subsection manufacture. The docking quality of this kind of segmented parts directly affects the overall assembly quality. Traditional docking assembly process automation degree is low, excessive reliance on special tools and manual experience. It is one of the key points to improve the efficiency and quality of the butt assembly of large parts to determine the optimal matching position of the parts. Based on the advanced measuring equipment and the automatic positioning equipment, a comprehensive evaluation index system for the optimal matching position of the large parts is established. Firstly, based on the mathematical models of point set matching, straight line alignment, plane matching and surface matching, the assembly accuracy evaluation indexes of key features in the docking structure of large parts are established. From two aspects of manufacturing accuracy and coordination accuracy, a comprehensive evaluation index system for the optimal matching position of butt joint assembly of large parts is constructed, which provides an effective evaluation method for component manufacturing quality evaluation. It also provides the goal for solving the optimal matching position between components. Finally, based on the large component docking platform independently developed in the laboratory, the paper takes the barrel analog docking as the research object. The effectiveness of the comprehensive evaluation index system in guiding the assembly and docking of large parts is verified. Compared with the traditional technology, the optimal docking position can be directly guaranteed and the assembly quality can be improved.
【作者單位】： 上海交通大學機械系統(tǒng)與振動國家重點實驗室;上海交通大學上海市復雜薄板結構數字化制造重點實驗室;
【基金】：國家重點基礎研究發(fā)展計劃資助項目(973計劃,2014CB046600)
【分類號】：TG95

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本文編號：1943078