工具磨床的磨削主轴箱振动测试与分析

Vibration Measurement and Analysis on Headstock of Tool Grinder

机床主轴振动是影响产品加工质量以及刀具寿命的重要因素,在加工过程中,对机床主轴箱的振动情况进行检测和分析显得尤为必要。以公司自行研制的工具磨床为研究对象,利用加速度传感器和NI PXIe数据采集系统,测量机床在不同行程区间以及不同进给速度下,主轴箱在x方向的振动状态。实验表明,自研机床主轴箱x方向在磨削加工行程区间内振动较大,且在15 mm/min进给速度左右机床主轴箱在x方向的振动达到最大值。

As an important factor for the product machining quality and tool life, the spindle vibration measurement and analysis plays a critical role in machining process. With the NI PXIe data acquisition system and accelerometer, the vibration signals are acquired from the headstock of tool grinder in different moving range and feed speed. The experiment results show that X-directional vibration is significantly higher than other components and reach its maximum when the feed speed was at 15mm/min or so.