Electronic automatic clamp

The invention provides an electric automatic clamp. An installing plate is include, and the upper surface of the installing plate is provided with clamping mechanisms distributed in the circumferential direction of the installing plate; each clamping mechanism comprises a plate body, an inclined wedge and a roller attached to the upper surface of the inclined wedge; one side of each inclined wedgeis provided with a pushing mechanism used for pushing the inclined wedge to go forward; ball screw mechanisms used for driving the plate bodies to move leftwards and rightwards are fixed to the lowersurfaces of the plate bodies, and are fixed to the upper surfaces of supporting plates below the plate bodies; the lower surfaces of the supporting plates are provided with arc-shaped sliders in clamped connection with the supporting plates, and the arc-shaped sliders are in sliding connection with arc-shaped slide grooves formed in the installing plate; the arc-shaped sliders are provided with locking mechanisms, and lif