Protection mechanism of hydraulic machine for metal part production

The utility model relates to the field of protection mechanisms, and discloses a protection mechanism of a hydraulic machine for metal part production, which comprises a main body, the inner wall of the main body is fixedly connected with a steel plate, the inner wall of the steel plate is fixedly connected with a sensor, the outer wall of the sensor is fixedly connected with a buffer layer, and the outer wall of the buffer layer is fixedly connected with a fiber layer. A clamping groove is formed in the lower surface of the main body, and a door plate is clamped and matched with the inner wall of the clamping groove. Compared with an existing protection mechanism of a hydraulic machine, the protection mechanism of the hydraulic machine is provided with the sensor on the main body, when a metal part flying out of the hydraulic machine is in contact with the buffer layer and the fiber layer, the sensor can detect pressure, the electric telescopic rod is started, and therefore the second plug pin is controlled