The utility model discloses a balanced type anchor clamps, include working plate down, the bottom plate is connected to lower working plate, and upper bracket department is equipped with work piece back shaft, work piece clamping piece and upset motor. Work piece clamping piece in the tip of looks remote site evenly is equipped with a plurality of counter weight grooves, and the counter weight inslot is equipped with the balancing weight. The balancing weight include with the plumbous system counter weight post of counter weight groove looks adaptation, the bottom joint of counter weight posthas permanent magnet, the fixedly connected with of tank bottom department in counter weight groove is used for adsorbing permanent magnet's steel sheet. The utility model discloses can provide four freedom degrees to in upset during the work piece, can be according to the balancing weight of work piece weight in the suitable suitable quantity of position installation, guarantee the good work piece of clamping after, the holistic focus of work piece and work piece clamping piece is located the axis of work piece back shaft, guarantees steadily to overturn, the power harm that brings high one minute and low the next of the motor of avoiding overturning.