Core rod clamping device

The utility model provides a core rod clamping device which comprises a clamping device body, the clamping device body comprises a base, a sliding groove is formed in the base, a sliding block is installed in the sliding groove in a sliding mode, a movable plate is welded to the top of the sliding block, displacement mechanisms are fixed to the two ends of the base, one end of each displacement mechanism is installed on the sliding block, and the other end of each displacement mechanism is installed on the movable plate. A supporting rod is welded to the movable plate, a fixing groove is formed in the supporting rod, a movable seat is slidably mounted in the fixing groove, and a fixing rod and a moving mechanism are mounted on the movable seat. According to the core rod clamping device, the moving mechanism pushes the extruding plate to extrude and limit the side of a core rod, and the extruding plate is matched with the fixed rod and the movable seat to realize five-point extruding and limiting, so that the