High-precision cutting device for circuit board processing

The utility model discloses a high-precision cutting device for circuit board processing, which comprises a cutting machine main body, a bottom plate and a base, the cutting device further comprises a screw rod and a sliding rod, the screw rod and the sliding rod are horizontally arranged in an inner cavity of the bottom plate in a penetrating manner, the outer surface wall of the screw rod is connected with a screw sleeve in a screwing manner, and one side of the screw sleeve is fixedly connected with a sliding sleeve through a connecting rod. During use, the rotating handle is rotated to drive the screw rod to rotate, the threaded sleeve is fixedly connected with the sliding sleeve on the outer surface wall of the sliding rod, namely, the threaded sleeve connected with the outer surface wall of the screw rod in a screwed mode can synchronously and correspondingly move with the sliding sleeve, and the base is fixedly connected with the threaded sleeve and the sliding sleeve through the supporting rod. The ba