摘要
针对电主轴轴体的热变形以及重要零部件轴承在加工中心上的常见故障,提出基于收集电主轴温度变化的热误差实时补偿计算方法与轴承常见故障的诊断方法。热误差补偿方法可以通过对轴体上测温点数据的处理对电主轴单元进行实时的热误差补偿提高加工精度。故障诊断方法是对不同的温度节点设置不同的阈值,阈值对应着电主轴单元内部某些重要零件的故障特征,当节点温度变化超出阈值即进行报警以诊断具体零件的故障。促进了电主轴的智能化进程,为接下来的研究打下基础。
To reduce the thermal deformation of a motorized spindle's shaft body and the common faults of important parts such as bearing in the processing center,a real-time thermal error compensation calculation method based on collecting the temperature change of the motorized spindle and the bearing's common fault diagnosis method were proposed.The thermal error compensation calculation method can improve the machining accuracy of the motorized spindle unit through processing the temperature measurement point data of the shaft body.The fault diagnosis method is used to set different thresholds for different temperature nodes.The threshold corresponds to the fault characteristics of a certain important part inside the motorized spindle unit.When the change in a temperature node exceeds the threshold,the alarm is given to diagnose the faults of a particular part.
作者
李滨
彦成
LI Bin;YAN Cheng(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)
出处
《机械科学与技术》
CSCD
北大核心
2024年第3期483-489,共7页
Mechanical Science and Technology for Aerospace Engineering
基金
哈尔滨市应用技术研究与开发项目(2017RALXJ011)。
关键词
加工中心
电主轴
温度
热变形
实时补偿
故障诊断
processing center
motorized spindle
temperature
thermal deformation
real-time compensation
fault diagnosis