Device for reducing rejection rate of core vibration machine and detecting falling of vibration head

The invention discloses a device for reducing the rejection rate of a core vibration machine and detecting falling of a vibration head, the core vibration machine comprises a base, a plurality of springs, a vibration participating mechanism, a pull-close mechanism and a vibration mechanism, the vibration mechanism comprises the vibration head, and the vibration head is located above a to-be-machined workpiece. The device for reducing the rejection rate of the core vibration machine and detecting falling of the vibration head comprises a support, a plurality of switch bases and a plurality of distance measuring mechanisms. The support is arranged at the front end of the to-be-machined workpiece. The multiple switch bases can be arranged on the support in a transverse and longitudinal moving mode. The multiple distance measuring mechanisms are respectively fixed on the multiple switch bases, and are respectively used for detecting whether the vibration head falls off or not. When the multiple distance measuring