Knife handle holding device

The knife handle holding device comprises two knife claws which are oppositely arranged, open grooves used for containing the outer contour of a knife handle in a matched mode are formed in the opposite faces of the two knife claws, and stop pin columns which are installed on the inner walls of the two sides of the open grooves in a crossing mode and can be clamped into side wall grooves of the knife handle or transversely support the step face of the side face of the knife handle are arranged in the open grooves. According to the utility model, the open grooves are formed in the clamping jaws; a stop pin column is arranged in the open groove; the stop pin column is used for replacing an existing manipulator to process a flange or a step surface; even if abrasion occurs, the stop pin column is convenient to replace in time, the whole mechanical arm does not need to be scrapped, the arrangement mode and the arrangement position of the stop pin column can be set according to actual requirements, the flexibility