Device for machining core groove of cage type motor rotor

The utility model relates to a device for machining a core groove of a cage type motor rotor. The device for machining the core groove of the cage type motor rotor is characterized by comprising a tool, a connecting piece and an impact tool, wherein the front end of the tool is provided with a guide end, multiple layers of blades are arranged on the periphery of the surface of the tool, the maximum diameter of the tool is matched with the inner diameter of the core groove, and the rear end of the tool is connected with the impact tool through the connecting piece. According to the device for machining the core groove of the cage type motor rotor, the tool is arranged in the iron groove at one end of the cage type motor rotor, the tool is impacted through the impact tool, the tool is pushed out from the iron groove at the other end of the rotor, the blades of the tool cut the iron groove of the rotor, the rugged positions of the inner surface of the iron groove are machined smoothly, and a rotor guide strip is made to be in tight fit with the iron groove.