Grabbing device for pole frame-mastoid plate or pole plate of hydrogen production electrolytic cell

The utility model relates to a gripping device for a pole frame-mastoid plate or a pole plate of a hydrogen production electrolytic cell, which comprises a mechanical arm and a gripping mechanism controlled by the mechanical arm, and the gripping mechanism comprises a flange seat, an outer gripping assembly and an inner gripping assembly; the outer grabbing assembly comprises a plurality of long rods and outer grabbing units, the long rods are annularly arranged on the peripheral side of the flange base, the lower portion of the outer end of each long rod is connected with the corresponding outer grabbing unit, the outer grabbing units are adjustably arranged in the length direction of the long rods, and each outer grabbing unit comprises an outer mounting base and a grabbing element elastically connected to the lower portion of the outer mounting base in a sliding mode; the inner grabbing assembly comprises a plurality of short rods and inner grabbing units, each short rod is arranged between every two adjac