Engineering machine tool arm of force

The utility model relates to an engineering machine tool arm of force. The base on be equipped with four hydraulic pumps, the welding of base center has the revolving stage, has cup jointed whole arm on the revolving stage, whole arm top and arm of force end articulated mutually, period number puts the centre gripping and is fixed with hinge piece in the arm of force, and hinge piece one end articulates in hydraulic stem a, and the other one end of hydraulic stem an articulates in lifting the bizhong hypomere, the other one end of hinge piece with through hydraulic stem b looks drawknot between the hinge props, the hinge two hinge positions of propping other one end, hinge respectively on the arm of force, three hornblocks, three hornblocks in the fixed welding of socket joint have oblique single arm -drag, the single arm -drag end is equipped with flexible arm, the terminal articulated couple of flexible arm to one side, the utility model discloses a simple structure, hydraulic drive loss are little, high tr