摘要
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。
Via the analysis and study of the workpiece subject to force and vibration mechanism caused by friction in the revolute cutting process, the motion equation for stick slip vibration of workpiece caused by friction is established; the stick slip motion law of workpiece is determined; the tendency varying with time of displacement, velocity, acceleration and action force of stick slip vibration of workpiece are discussed and analysed; and also, the amplitude value and period of stick slip vibration of workpiece are estimated. With 0.06×0.06 m 2 square steel by φ1650 cold saw cutting as an example, the established theory is tested. Whose research results can provide the theoretical basis for reducing vibration and noises in the revolute cutting process as well as increasing efficiency of the cold sawing.
出处
《西安理工大学学报》
CAS
1999年第3期54-58,共5页
Journal of Xi'an University of Technology
关键词
旋转锯切
摩擦
粘滑振动
振动
圆盘锯机
revolute cutting
workpiece
friction
stick slip vibration
