Injection molding part corner cutting device

The utility model discloses an injection molding part corner cutting device which comprises a base, the upper surface of the base is fixedly connected with a cutting mechanism and a clamping box, the clamping box is located on the left side of the cutting mechanism, and bearings are embedded in the inner top wall and the inner bottom wall of the clamping box. The inner rings of the two bearings are jointly and fixedly connected with a threaded rod, a rectangular through opening is formed in the right side face of the clamping box, a lower clamping plate is arranged below the rectangular through opening, the outer surface of the threaded rod is in threaded connection with a lifting plate, and the right side face of the lifting plate penetrates through the rectangular through opening and is fixedly connected with an upper clamping plate. A rotating handle is fixedly connected to the top end of the threaded rod, and four supporting legs are fixedly connected to the bottom face of the base. According to the devic