Hollow billet clamping device for tube push bench front table

The utility model discloses a hollow billet clamping device for a tube push bench front table. The hollow billet clamping device comprises a hydraulic cylinder, a welding bed, a swinging arm, an upper clamping die and a lower clamping die, wherein the lower clamping die is fixedly arranged on the welding bed; the upper clamping die is fixedly arranged on the swinging arm; the middle part of the swinging arm is hinged to the welding bed; one end of the swinging arm is fixedly connected with the upper clamping die, and the other end of the swinging arm is hinged to a cylinder head of the hydraulic cylinder; and the hydraulic cylinder is arranged on the welding bed in a rotating way. The hollow billet clamping device for the tube push bench front table is integrated into a single structure, and can be rapidly disassembled and wholly replaced when failing, so that the downtime, caused by a failure, of the whole production line is reduced, and the production continuity is improved.