Precast beam machining device for municipal bridge engineering and using method thereof

The invention discloses a precast beam processing device for municipal bridge engineering and a using method thereof.The precast beam processing device comprises precast molds, a supporting frame is detachably connected between the precast molds, a plurality of clamping bodies are hung on the supporting frame, sliding ways which are symmetrically arranged are formed in the bottom ends of the clamping bodies, and movable petal bodies are slidably connected into the two sliding ways; a channel for a reinforcing steel bar to pass through is reserved between the two movable petal bodies; the clamp body is in sliding connection with a sliding rod arranged in the vertical direction, the upper ends of the two movable petal bodies are rotationally connected with a left pull rod and a right pull rod respectively, and the left pull rod and the right pull rod are rotationally connected with the sliding rod through the same rotating shaft. The device is convenient to operate, the reinforcing steel bar can be fixed to any