The invention provides a roll
welding device for a precast
pile reinforcement cage framework. The roll
welding device comprises a rotary table mechanism, a straightening mechanism and a
welding mechanism, wherein the straightening mechanism and the welding mechanism are arranged on the two sides of the rotary table mechanism, the rotary table mechanism and the welding mechanism are in
signal connection with a controller, the rotary table mechanism comprises a base, a drawing device, a
diameter adjusting device and a supporting device, the drawing device, the
diameter adjusting device and the supporting device are arranged above the base and are parallel to each other, the drawing device and the supporting device are located on the two sides of the
diameter adjusting device respectively, the diameter adjusting device and the drawing device are connected through a connecting shaft, the diameter adjusting device and the supporting device are connected through a connecting shaft respectively, a plurality of second lifting devices are arranged between the diameter adjusting device and the drawing device, and a plurality of first lifting devices are arranged between the diameter adjusting device and the supporting device. According to the roll welding device for the precast
pile reinforcement cage framework, displacement of the reinforcement cage can be conducted through the drawing device, diameter changing in the production process of the reinforcement cage can be conducted through the diameter adjusting device, framework ribs are pre-straightened through the supporting device so as to release tension and torsion, operation is easy, and the product precision is high.