Patent ID: 6105845
Filing Date: 2000-08-22
Classification: B23K

Abstract:
Apparatus for connecting two workpieces together by welding a seam in a welding station, the apparatus comprising:a first pair of opposed tracks extending in a conveying direction to engage and advance one of the workpieces toward a welding station from a receiving section of the tracks to a discharging section of the tracks and a second pair of opposed tracks adjacent said first pair of opposed tracks and extending in the conveying direction to engage and advance the other of the workpieces toward the welding station with the one of the workpieces, each of said tracks running around guide rollers to advance their respective workpieces in the conveying direction, each track comprising a plurality of individual members;means for subjecting the individual members of each track and the workpieces to different pressures; andmeans for creating a clearance between each pair of opposed tracks in the receiving section of the tracks to receive the workpieces advancing toward the welding operation.