The utility model discloses a spring high accuracy straightening device relates to spring
processing equipment technical field, including frame, the surface sliding connection of frame has the pressing plate, the top of frame is provided with the
hydraulic cylinder for driving the sliding of pressing plate, the side wall fixed connection of frame has the control mechanism for controlling the
hydraulic cylinder, is provided with the straightening subassembly on the frame, and the surface of pressing plate is equipped with the guide slot, and the two inner side walls of guide slot all are equipped with the limit sliding slot, and the inside of guide slot is provided with two limit subassembly, and the rotation of pressing plate is connected with the adjusting
assembly, in the process of straightening, make spring clamping between two limit clamps, the recess is used for the convex of the adapter expansion board, and two limit clamps will be held in limit spring, avoid the deviation of spring to left and right sides in the process of pressing plate pressing, make its straightening position deviation, influence straightening accuracy and result, solved the device of existing not setting limit structure, the problem that spring is easy because of unbalanced force makes the straightening position deviation when straightening.