Device for making butt-joints of at least two panels of sheet metal in an installation for welding with an energy beam of high density

摘要

The two metal sheet blanks (2,3) are positioned and clamped edge to edge, for welding by a high energy density beam (1). Horizontal reference surfaces (30,60) are provided above each sheet, positioned (10,50) below and with clamps (40,70) above the reference surfaces. The clamps and reference surfaces are displaced perpendicular to the junction plane. A longitudinal stop (92), under the clamping surfaces, moves between three positions. Firstly, horizontal, retracted, and secondly, intermediate, vertical, controlled by an actuator (100). A second actuator controls it between the intermediate and a third vertical position, referencing the first blank (2). The stop base (92a) is pinched between the clamps, its top extending over the horizontal reference, positioning the blank in the welding beam axis.