Novel hydraulic clamping mechanism

The utility model discloses a novel hydraulic clamping mechanism. An oil cylinder is arranged on the central place of a convex protrusion of a clamping connecting part of a rocking arm; the oil cylinder is symmetrically provided with a clamping pressing plate on the upper and the lower sides; two clamping pressing plates are provided; a large end of each clamping pressing plate is connected with the inner sides of a lateral side of a clamping jointing part via a spherical pull rod; a rubber adjusting and clamping pad is arranged on each spherical pull rod; each spherical pull rod and each rubber adjusting and clamping pad are fastened via a nut; four spherical pull rods are provided; lever mechanisms are formed by the four spherical pull rod and the two clamping pressing plates; small ends of the two clamping pressing plates have contact with one end of two bending plates; two bending plate are provided; the other end of each bending plate is arranged on the top end of a piston; and a drift angle of each bend