Four-way valve welding assisting device

The invention provides a four-way valve welding assisting device and relates to the technical field of industrial production. The four-way valve welding assisting device comprises a rotating disk, a plurality of fixing assemblies and a plurality of nitrogen filling assemblies; the fixing assemblies and the nitrogen filling assemblies are equal in number and are in one-to-one correspondence; the fixing assemblies are used for fixing four-way valves and guide pipes; and the nitrogen filling assemblies are used for performing nitrogen filling on the connected positions of the guide pipes and thefour-way valves. Due to the four-way valve welding assisting device, one worker can complete welding, cooperation of a plurality of workers is not needed, and the welding efficiency is greatly improved. Each set of fixing assembly and nitrogen filling assembly correspondingly arranged on the rotating disk serves as one work unit; the rotating disk can drive the work units to rotate; after the worker completes welding of o