The utility model provides a kind of resistance material belt
laser welding device, it includes feeding
assembly,
welding assembly and winding frame sequentially arranged along material belt feeding direction.
Welding assembly includes jig, vacuum box, distance adjusting support and two
laser welding machines on distance adjusting support;Jig includes base, sealing cover, upper support, limit sliding block and two auxiliary clamping blocks, base is equipped with feeding end,
discharge end and welding area, auxiliary clamping block is equipped with gas groove;Sealing cover is equipped with
optical glass,
optical glass is attached with anti -reflective film;First retaining roller and reference shaft are equipped in welding area, upper support is located in sealing cover, upper support is equipped with second retaining roller, limit sliding block is equipped with limit shaft.First retaining roller, second retaining roller, limit shaft and reference shaft cooperate to provide limit to material belt, avoid to occur to deviate or to miss weld, and vacuum box and auxiliary clamping block are vacuumized in welding position, remove the
impurity generated in
welding process, avoid the formation of blowhole or inclusion in weld position, improve welding quality.