Abstract: An electron beam processing device includes a chamber housing that defines a chamber interior space and has a first opening. A carriage is movable along the first opening. An electron beam generator is disposed on the carriage so that the generated electron beam passes through the first opening when the carriage moves along the first opening. A disk is disposed between the chamber housing and the carriage and is rotatable about a rotational axis, which is perpendicular to the first opening, at least between a first rotational position and a second rotational position. The disk has a second opening spaced from the rotational axis of the disk in the radial direction. The rotational axis of the disk is disposed so that the first opening always overlaps the second opening at least along an electron beam propagation axis when the disk rotates between the first and second rotational positions.

Abstract: An electron beam processing device includes a chamber housing that defines a chamber interior space and has a first opening. A carriage is movable along the first opening. An electron beam generator is disposed on the carriage so that the generated electron beam passes through the first opening when the carriage moves along the first opening. A disk is disposed between the chamber housing and the carriage and is rotatable about a rotational axis, which is perpendicular to the first opening, at least between a first rotational position and a second rotational position. The disk has a second opening spaced from the rotational axis of the disk in the radial direction. The rotational axis of the disk is disposed so that the first opening always overlaps the second opening at least along an electron beam propagation axis when the disk rotates between the first and second rotational positions.

Abstract: In the determination of the position and geometry of workpiece surfaces, especially weld grooves in automatic arc welding, the workpiece surface or a section thereof, is imaged from two different observation points onto two image pickups. This is so that mutually shifted images of the workpiece surface are reproduced on the two image pickups. This is as well as from the position and the spacing of the defined points of the workpiece surface on the two image pickups. The position of these defined points within the spatial coordinate system of the measuring device is calculated in order to then determine from the position of all calculated points the geometry of the workpiece surface as well as the position of the latter with respect to the observation system.

Abstract: In order to maintain the degree of filling of weld seams constant, especially those seams having a changing size of the cross section of the weld groove, in arc welding, the spacing of the welding gun from the workpiece is kept constant, the welding amperage and/or the welding voltage are measured, and the thus-measured value for the welding amperage or the welding voltage, respectively, is compared with a predetermined set value corresponding to the desired degree of filling. In case of a deviation of the measured value from the predetermined set value, the welding speed and/or the welding output are changed correspondingly.

Abstract: An automatic welding machine (robot machine) in which several, for example two, multi-articulated holders for welding guns or pincher welding guns are provided on a beam, which beam is movable in at least two degrees of freedom, which holders are arranged displaceably in the longitudinal direction of the beam.