论文部分内容阅读
通过对旋转锯切过程中工件受力及摩擦引起振动机理的研究分析, 建立了摩擦引起工件粘滑振动的运动方程, 确定了工件粘滑运动的规律, 讨论分析了工件粘滑振动时的位移、速度、加速度及作用力随时间的变化趋势, 并对工件粘滑振动的幅值及周期进行了预估。以φ1650冷锯机锯切0.06×0.06m 2 方钢为例, 对所建理论进行了验证。此项研究成果可为进一步降低锯切过程的振动噪声及提高锯机的效率提供理论依据。
Through the research and analysis of the vibration mechanism caused by the force and friction in the process of rotating sawing, the equation of motion of the stick-slip vibration caused by friction is established and the stick-slip motion of the workpiece is determined. The displacement , Velocity, acceleration and force with time trends, and the magnitude and period of stick-slip vibration of the workpiece are estimated. Take φ1650 cold sawing machine sawing 0.06 × 0.06m 2 square steel as an example, the built theory is verified. The results of this study can provide theoretical basis for further reducing the vibration and noise of the sawing process and improving the efficiency of the sawing machine.