CAJ | 학술논문

采用改进的多体系统建模理论对激光拼焊生产线运动误差进行研究.用低序体阵列描述多体系统拓扑结构,用特征矩阵表示多体系统中间体的相对位置和姿态.在基于多体系统理论的误差建模基础上提出位置误差传递函数的概念,用来描述各个误差源对位置精度的影响.根据激光拼焊生产线的结构特点,运用改进的多体系统理论精度分析理论,对激光拼焊生产线运动精度进行系统、全面的分析.采用Leica激光跟踪仪对激光拼焊线的运动误差进行检测,并将检测结果与误差模型分析结果进行对比,结果表明所建立的模型能有效预测激光拼焊线的运动误差.
채용개진적다체계통건모이론대격광병한생산선운동오차진행연구.용저서체진렬묘술다체계통탁복결구,용특정구진표시다체계통중간체적상대위치화자태.재기우다체계통이론적오차건모기출상제출위치오차전체함수적개념,용래묘술각개오차원대위치정도적영향.근거격광병한생산선적결구특점,운용개진적다체계통이론정도분석이론,대격광병한생산선운동정도진행계통、전면적분석.채용Leica격광근종의대격광병한선적운동오차진행검측,병장검측결과여오차모형분석결과진행대비,결과표명소건립적모형능유효예측격광병한선적운동오차.
Research on error modeling of tailored blank laser welding machine which has four linear axes is introduced. The number arrays of low-order body are used to describe the topological structures which are taken to generalize and refine MBS, and the characteristic matrices are employed to represent the relative positions and gestures between any two bodies in MBS. Position error transfer function which can reflect the influence of each error origin on the positioning error of the machine tool is given to describe transmission error of the machine in detail. Based on this method, the error model of the tailored blank laser welding machine is put forward. The measurement and evaluation of their error parameters start, after completed error modeling of the machine. Leica laser tracker is introduced to measure the errors of the machine and to check the result of the error model. The comparison results indicate that the error model can effectively predict errors of the tailored blank laser welding system.