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提出了一种以主动纠偏原理为基础的模锻压机平衡控制系统,通过解析法和拉氏变换法,对模锻压机系统的活动横梁、驱动缸以及驱动系统完成数学建模,同时分析了偏心载荷作用于活动横梁不同位置时系统的同步纠偏精度。在简化控制变量的基础上,利用MATLAB软件进行仿真。分析结果表明,活动横梁在最大压制速度、最大偏心载荷、偏心载荷作用点最远处时的主动纠偏调整时间最长,调整时间为2.00 s,主动同步纠偏精度为0.714 mm·m-1;相比于现有基于被动纠偏原理的同步平衡控制系统,主动同步系统的纠偏调整时间更短,纠偏精度更高。
A balance control system of die forging press based on active deviation correction principle is proposed. By means of analytic method and Laplace transform method, the mathematical model of movable beam, driving cylinder and driving system of die press system is completed. At the same time, eccentricity When the load acts on different positions of the movable beam, the synchronization correction accuracy of the system. On the basis of simplifying the control variables, using MATLAB software to simulate. The analysis results show that the active correction time is the longest, the adjustment time is 2.00 s and the active synchronous correction accuracy is 0.714 mm · m-1 when the movable beam is at the maximum pressing speed, the maximum eccentric load and the point of eccentric load. Compared with the existing synchronous balance control system based on the passive correction principle, the active synchronous system has shorter correction time and higher correction accuracy.