Adjustable positioning tool for cross beam machining

The utility model discloses an adjustable positioning tool for cross beam processing, which comprises a base, the top of the base is sequentially provided with a left connecting seat, a supporting seat and a right connecting seat from left to right, the top of the left connecting seat and the top of the right connecting seat are respectively provided with a left connecting plate and a right connecting plate, and the left connecting plate and the right connecting plate are oppositely arranged; the two ends of the top of the supporting base in the length direction are each connected with a threaded rod through threads. When the tool is used, the left connecting plate and the right connecting plate are connected with the cross beam connecting plates, then the middle part of the cross beam is placed on the supporting seat, the screws on the two sides are adjusted, the middle part of the cross beam is adjusted to a proper position, then the two ends of the middle part of the cross beam are welded to the cross beam