Circuit board welding forming device

The invention discloses a circuit board welding forming device, and particularly relates to the technical field of circuit board processing, the circuit board welding forming device comprises support legs and a base, and two groups of support legs are fixedly connected to two sides of the bottom end of the base. By arranging a polishing box, a driving motor, a polishing disc, a first cavity, a connecting shaft, a second cavity, a collecting box and a handle, the surfaces of pins on the back face of a welded circuit board are sharp, skin is prone to being scratched, the polishing disc is installed on one side of the device, and the driving motor drives the polishing disc to polish the pins on the back face of the circuit board, chippings generated after polishing directly fall into the collecting box at the bottom end of the second cavity, after the collecting box collects the chippings for a period of time, the collecting box can be pulled out from the interior of the polishing box through the handle to be cl