Power lithium battery module welding device

The utility model provides a power lithium battery module welding device which comprises a welding table, a supporting frame is installed at the top of the welding table, a top plate is installed on the front face of the supporting frame, an air cylinder is installed at the bottom of the top plate, a purification mechanism is installed at the bottom of the air cylinder, and a laser shielding plate is installed on the front face of the purification mechanism. A light transmitting hole is formed in the top of the laser shielding plate in a penetrating mode and located under the laser emitting head. When the device is used, harmful gas generated during welding of the lithium battery can be more effectively purified, the pollution phenomenon of the harmful gas to the surrounding environment is reduced, granular impurities in the harmful gas can be collected, the cleaning burden of people on the site of the device is reduced, and by cooling the harmful gas, the welding quality of the lithium battery is improved. T