MULTIPLE ELECTRODE SPOT WELDER FOR MANUFACTURING GRID OR LATTICED GRATING

This multispotwelding machine serving for the production of grids or gratings has a welding electrode system (50, 51, 52) suitable for double spotwelding in the direction of the longitudinal members (L) and having two lines of weld (S1, S2), two crosswire feed lines (E1, E2) arranged in a fixed position at a distance apart (A), two crosswire transfer tools (4, 5) which are arranged on a common bearer (1), which can be shifted in the direction of the grid feed by a length of stroke (H) corresponding with the distance of the plane of symmetry (ME) of the feed lines from the plane of symmetry (MS) of the lines of weld (S1, S2) of the welding electrode system, as well as a grid feed mechanism (67). For enabling alteration of the crosswire pitches a mechanism (2, 3, 21, 23) is provided by which the crosswire transfer tools (4, 5) can, during the motion of the transfer tools, be adjusted on the common bearer (1) in opposite senses by equal amounts (x) in the direction of the longitudinal members (L), so that their lengths of stroke (H+/-x) are altered in opposite senses with respect to the length of stroke (H) of the bearer (1).