Research on Machine Tool Spindle System with Embedded FBG Temperature Sensors
Keywords:Spindle system Bearing temperature measurement Embedded FBG
The spindle system is the core component of machine tool, And the spindle bearing temperature directly influences the size and direction of the spindle thermal error, as well as determines the machining surface quality. A complete spindle system including cutting force, bearing preload upload system, and precise description of bearing temperature field is beneficial to thermal error study and analysis of machining error. This paper set up a spindle system, which covers a preload upload system and a cutting force simulation system, and also a spindle bearing temperature measurement system. Besides, the bearing temperature fields were measured. Results show that optical fiber grating could be applied to the spindle bearing distribution temperature field measurement very well. It could play a certain role in promoting the development of intelligent spindle study.
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