Online shaping device for frame arc welding line

The utility model discloses an online shaping device for a frame arc welding line. The utility model relates to the technical field of frame welding, including a base, wherein a shaping device and a product precision judging mechanism are arranged on the base; shaping device comprises a support, bracket fixed on base, oil hydraulic cylinder is arranged on the support, the oil hydraulic cylinder isconnected with an ejector rod; a jacking head is arranged on the jacking rod; a first cylinder is arranged on one side of the ejector rod; a piston of the first air cylinder is connected with a clamping mechanism used for clamping a workpiece. The product precision judging mechanism comprises a supporting base arranged on one side of the shaping device, a movable block and an ejection air cylinder are arranged on the supporting base, the movable block is arranged on the supporting base in a sliding mode, a supporting block is arranged at the top of the movable block, and a linear sensor is arranged at the bottom of t