The invention relates to the technical field of valve
machining, and discloses a multi-angle
grinding device for valve sealing surface production. The device comprises a shell, wherein a clamping groove is formed in the inner wall of the middle of the shell; a rotating shaft is movably connected to the inner wall of the middle of the shell; a non-magnetic plate is fixedly connected to the inner wall of the middle of the rotating shaft; a connecting rod is fixedly connected to the outer side of the rotating shaft; and an
electromagnet is fixedly connected to the middle inner wall of the rotating shaft. According to the multi-angle
grinding device for valve sealing surface production, a trigger bar drives
dielectric plates to move, the
dielectric plates drive a positive plate and a negative plate to operate, and then a ball and a piezoresistor are used in cooperation, so that the effect of controlling the
electromagnet and a conductive pole to be powered on and powered off is achieved, the trigger bar is pushed towards the left side along the inner wall of a movable groove, the
dielectric plates generate
relative displacement, the relative area of the positive plate and the negative plate is gradually reduced, the
voltage between the two plates is gradually reduced, at the moment, the minimum path
voltage of the piezoresistor is reached, the
electromagnet is powered on to generate a
magnetic field, and a static contact is in contact with a movable contact and the conductive pole is powered on.