Seam welding machine for joining sheet blanks together
AssigneeElpatronic AG
InventorsWalter Bischofberger, Karl Wueger
Life of this patent
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Abstract
The seam welding machine with welding arrangement 10 has a lower part (1) and an upper (2). Load-bearing components are upper and lower longitudinal girders (20, 21) with a rigid connection (3, 4) between them. For clamping sheet blanks (7, 8) for welding, two clamping blocks are provided, each with upper and lower pressure beams (24, 25); at least the upper pressure beams (24) can be raised and lowered by means of jacks. For longitudinal transport of workpieces (7, 8) along the weld axis (Z), each beam has a feed unit (40, 41). Each feed unit comprises a longitudinal guide extending in the direction of the axis (Z), a slide, with clamping devices, guided on this longitudinal guide, and a reversible linear drive connected to the slide.
Claims11
Seam welding machine for joining together with a seam weld sheet blanks clamped side by side, comprising
- a welding head defining a weld axis (Z),
- two clamping blocks arranged on either side of the weld axis (Z) for the sheet blanks each with upper and lower pressure beams and upper and lower clamping devices defining a receiving gap (5) for the sheet blanks and
- a longitudinal transport system for advancing the clamped sheet blanks in the direction of the weld axis (Z),
- characterized in that
- the two upper pressure beams are carried by an upper longitudinal girder and the two lower pressure beams are carried by a lower longitudinal girder, said girders being fixed and rigid and rigidly connected to one another, and at least the upper pressure beams can be raised and lowered with respect to the upper longitudinal girder by jacks,
- and each pressure beam has a feed unit, each unit comprising longitudinal guides (43) extending in the direction of the welding axis (Z), a slide running on the guides and carrying the clamping devices and a reversible linear drive connected to the slide.
Dependencies are inferred from the claim text.