Welding device for flexible circuit board processing

The utility model discloses a welding device for processing a flexible circuit board, which relates to the field of circuit board welding and comprises a supporting column, a connecting rod is mounted at the top end of the supporting column, a lifting mechanism is mounted at the middle end of the connecting rod, and a tin soldering head assembly is mounted at the lower end of the lifting mechanism. The tin soldering head assembly is rotated to a needed angle through the circular shaft, tin wires and soldering bits of different specifications can be replaced according to needs, the welding requirements of circuit boards of different sizes can be met, the applicability of the device can be improved, and the cost is reduced. A motor installed in the device can adjust the positions of the two welding tables at the same time through two sets of gears and racks, the production efficiency can be improved, workers can place circuit boards conveniently through the movable welding tables, a tin soldering head assembly