通过对“模型黄河”自动制模机横梁受力分析,并计算在各主要作用力作用下及横梁长度和载荷位置变化的情况下横梁的挠度变形总值,来判断横梁挠度变形是否超出制模机成型精度要求范围。在分析计算基础上,采用了根据横梁跨度的变化分段定值补偿挠度变形的措施,使伺服电机带动垂直丝杠按用修正后的y′值产生位移,以修正横梁挠度变形对成型精度的影响,简化了控制计算,依此来保证制模机的成型精度。 Through the analysis of the force of Beam of “Model Yellow River” Automatic Molding Machine and calculating the total deflection of the beam under the action of the main force and the change of the beam length and load position, it is judged whether the deformation of the beam deflection exceeds Molding machine forming precision requirements. On the basis of the analysis and calculation, the method of compensating the deflection deformation by the sectional setting of the span variation is adopted, and the vertical screw driven by the servo motor is displaced according to the corrected y ’value to correct the deformation of the beam deflection deformation Influence, simplify the control calculation, so as to ensure molding machine molding accuracy.