端面法磨削玻璃时减振技术研究

Research on damping technology when grinding glass by tip method

脆性非金属材料在高速高效率镜面磨削时,零件表面容易出现裂纹(或破碎的缺陷层),其根本原因在于加工工艺系统的振动。本文运用理论力学的方法对加工系统进行了分析研究,在双级减振原理的基础上建立数学模型和消振试验装置。利用工艺系统中的弹性介质(如冷却液)等为减振元件,通过改变冷却液的流量和改变主轴转速的方法使砂轮工作在系统共振去以外的区域,最大限度的减少了砂轮的振动,保证了高磨削效率下零件的表面质量。

When brittle non-metallic materials grind mirror in high-speed and high efficiency,the surface of the parts are prone to crack（or broken defect layer）,which lies in the vibration of processing system.It applied theoretical mechanics methods to analyze and study the processing system.Mathematical models and vibration elimination experimental device were established on the basis of two-stage damping principle.Using the elastic medium （such as coolant）in process system as buffer components and changing the coolant flow and spindle speed,grinding wheel can work outside the region,the vibration of the grinding wheel was minimized,and the surface quality of parts in high grinding efficiency was guaranteed.