Welding positioner mainly refers to a kind of equipment which can play an auxiliary role in welding. It is mainly used for welding which requires the workpiece to be able to realize displacement during welding. In this way, the ideal welding position and welding efficiency can be achieved. Welding positioner can be used with many other types of machines to form the type of automatic welding. It can also be used for workpiece displacement during manual welding. At present, there are many kinds of positioners in the market, so it is a difficult problem for consumers to choose.