High-precision dynamic and static disc hydraulic clamp

The utility model belongs to the field of hydraulic clamps, and particularly relates to a high-precision dynamic and static disc hydraulic clamp which comprises a shell, a placing table is fixedly installed on the top of the shell, a lifting disc is installed in the shell in a sliding mode, a clamping mechanism is arranged on the top of the placing table, and the clamping mechanism comprises a rectangular base, a moving groove, an extrusion base and an arc-shaped clamping plate. A plurality of rectangular seats are annularly and fixedly installed at the top of the placing table at equal intervals, moving grooves are formed in one sides of the rectangular seats, extrusion seats are slidably installed in the moving grooves, the extrusion seats extend to the outer sides of the rectangular seats and are fixedly provided with arc-shaped clamping plates, inclined holes are formed in one sides of the extrusion seats, and extrusion rods are slidably installed in the inclined holes; and a plurality of driving rods are