Squeezing roller device for welding small-caliber thick-wall pipe

The utility model relates to the technical field of thick-wall pipe welding, in particular to a small-caliber thick-wall pipe welding extrusion roller device which comprises a machine frame and two extrusion roller assemblies. The rack comprises a wheel carrier; the extrusion roller assembly comprises a roller frame and an extrusion roller provided with an extrusion groove. The roller frame comprises two roller frame bodies, and a long connecting shaft and a short connecting shaft are arranged at the two ends of the extrusion roller correspondingly. The long connecting shaft and the short connecting shaft are respectively hinged with two roller frame bodies of the roller frame through bearings; the extrusion rollers are arranged in opposite directions, and the roller frame body of one roller frame and the long connecting shaft of the extrusion roller on the other roller frame have an overlapped part in the height direction. On the premise that the strength is guaranteed, the radius of the extrusion roller can