Main shaft vibration monitoring device

The utility model discloses a spindle vibration monitoring device, and relates to the technical field of mechanical spindles. The monitoring device comprises a monitoring box, an arc-shaped frame and a monitoring assembly, the monitoring box comprises a lower box body and an upper box body fixed to the top of the lower box body, the lower box body is fixed to a foundation, and the top of the lower box body and the bottom of the lower box body are each provided with a semicircular groove for a spindle body to penetrate through; an arc-shaped frame is fixed in the lower box body, and a plurality of monitoring assemblies are arranged on the arc-shaped frame; the monitoring assembly comprises a sliding sleeve, and the arc-shaped frame is sleeved with the sliding sleeve in a sliding mode. Vibration of the spindle body in all directions is monitored through the monitoring probes, comprehensive vibration monitoring and analysis functions are provided, monitoring results are more accurate, the position of the monitor