MACHINE A SOUDER LES BARRES, ET PROCEDE DE FABRICATION DE BARRES DE FORAGE A EXTREMITE FILETEE ET TARAUDEE

摘要

Rod welding apparatus that includes a rod positioner and a chuck assembly mounted on opposite ends of a frame for movement toward and away from one another, a plurality of roller assemblies intermediate the first mentioned assemblies for supporting a pair of rod portions with a threaded together pin and box combination intermediate the rod portions, a hold down assembly having driven rollers to releasably hold the rod portions down on the roller assemblies and rotate the rod portions and said combination while the rod portions and combination are held in axial compression by the first mentioned assemblies, a welder machine, a seam locator unit and controls for welding the pin to one rod portion and the box to the other rod portion, and a linear travel assembly for moving the rod portion adjacent the rod positioner assembly toward the chuck assembly, and the method of welding the rod portions together.