Clamping device for hub production and machining

The utility model discloses a clamping device for hub production and machining. Supporting seat, a through hole is formed in the center of the supporting base. A telescopic mechanism is arranged in the through hole; a telescopic column is arranged in the telescopic mechanism; the lower end of the telescopic column is fixedly connected with a conical supporting block. Four supporting columns are fixedly connected to the lower surface of the supporting base at equal intervals. The other ends of the four supporting columns are fixedly connected with the same mounting ring; four inserting groovesare formed in the side wall of the mounting ring at equal intervals; support rods are inserted into the four slots; one end, positioned in the mounting ring, of the supporting rod is fixedly connectedwith an arc-shaped pushing block; the hub clamping device has the advantages that the conical supporting blocks are driven to move up and down through the telescopic mechanisms, the transmission mechanisms and the telescopic