The invention discloses a
laser welding device for heat exchange plate
machining, and provides the following scheme that the
laser welding device comprises a
laser welding head, a fixing frame is connected to the laser welding head, a rotating
brush wheel is connected to the fixing frame, an
inductance heating block is connected to one side of the fixing frame, and a fixing cylinder is installed on the side, located on the laser welding head, of the fixing frame; a plurality of
layers of rebound rings are mounted on the inner wall of the fixing cylinder, and an air suction
pipe is mounted on the fixing frame; when the heat exchange plate of the electric automobile is subjected to laser welding through the laser welding head, the heat exchange plate of the electric automobile is heated through the
inductance heating block, so that burrs on the surface of the heat exchange plate are softened, the air density is reduced, the heat exchange plate of the electric automobile is preheated, and the surface of the heat exchange plate is cleaned through the
brush wheel; and the
exhaust gas is collected through the gas suction
pipe, particles are screened through the
brush wheel, the
smoke particles can be beaten and intercepted through rotation of the brush wheel, the particles are thrown out, and the multifunctionality of the brush wheel is achieved.