Heavy high-speed cutting equipment and center positioning mechanism

The utility model discloses heavy high-speed cutting equipment and a center positioning mechanism, and relates to the technical field of cutting machines, the center positioning mechanism comprises a lifting mechanism and a gathering mechanism, and the gathering mechanism comprises an upper electric push rod, a lower electric push rod, a left guide rail, a right guide rail, a supporting seat and a second supporting rod which are arranged on a rack. A left electric push rod, a right electric push rod, a guide rail and a support rod are arranged on the support seat; a pair of first gathering rods and a first sliding block are arranged on the lower sliding plate, a first hinge plate is hinged to the first sliding block, and when the lower sliding plate is pushed by the left electric push rod, the first sliding block slides back and forth on the guide rail; a second gathering rod and a second sliding block are arranged on the upper sliding plate, a second hinge plate is hinged to the upper sliding plate, and when