Front cross beam welding assembly for harvester

A front cross beam welding assembly for a harvester comprises an assembly A and an assembly B. The assembly A is a rectangular steel plate, the assembly A is provided with an L-shaped return hook, rectangular steel plates are arranged at the two ends of the assembly A, a notch is formed in the L-shaped return hook of the steel plate of the assembly A, the assembly B is a rectangular steel plate, and rectangular steel plates are arranged at the two ends of the assembly B. The assembly A and the assembly B are each provided with two fixed circular holes which are the same in position and size, the two circular holes in the assembly A and the two circular holes in the assembly B are attached and fixedly connected through bolts, and the assembly A and the assembly B are sprayed with epoxy resin paint or polyurethane anti-corrosion wear-resistant paint. The disassembly of the bolts on the circular holes of the assembly A is expanded through the rectangular notches formed in the assembly A, so that maintenance is f