Magnetic core processing device

The utility model discloses a magnetic core processing device which comprises a magnetic core clamp and a polishing device arranged on one side of the magnetic core clamp, a vacuum generator is arranged on the outer side of the polishing device, a driving device is arranged at one end of the vacuum generator, an ejector pin is arranged at the output end of the driving device, and an opening is formed in the end, away from the driving device, of the ejector pin. A flow channel for air circulation is arranged in the ejector pin, a shell capable of covering the ejector pin is arranged on the periphery of the ejector pin, a cavity capable of containing the ejector pin to do axial reciprocating motion is formed in the shell, a driving device is connected through a vacuum generator, and then suction force is generated at an opening in one end of the ejector pin under the action of the flow channel in the ejector pin. When the magnetic core polishing device is used, the machined magnetic core is attracted to the eje