Auxiliary device for shaping and machining rectangular spiral stirrup and using method of auxiliary device

The invention relates to an auxiliary device for shaping and machining a rectangular spiral stirrup and a using method of the auxiliary device. The auxiliary device comprises a fixed tray, a rotary forming system and a power system; a through hole matched with a rotating disc of a steel bar bending machine is arranged at the central position of the fixed tray; adjustable supports are arranged at the bottoms of the four corners of a square steel plate correspondingly, and the rotary forming system comprises a frame body with a quadrangular frustum shape, a reinforcing steel bar fixing clamp arranged at the bottom of the side edge of the frame body and a spring shrinking device; and the power system is arranged in the steel bar bending machine and is in driving connection with the rotating disc. The auxiliary device has the characteristics of being convenient to install, simple to operate and reliable in machining quality, not only can effectively accelerate the construction progress, shorten the construction p