Welding and positioning device for front axle of silage maize harvester

The utility model relates to a silage maize harvester front axle welding positioning device which comprises a positioning support, a first positioning assembly, a second positioning assembly and a first limiting assembly, the rear side wall of the positioning support is provided with a clamping assembly and an oil cylinder installation base positioning assembly, and the positioning support is provided with a second limiting assembly. The front axle welding device has the advantages that a front axle needing to be welded is positioned on the positioning support through the first positioning assembly and the second positioning assembly, a workpiece can be positioned more accurately, the welding precision is better, the oil cylinder mounting seat can be positioned through the oil cylinder mounting seat positioning assembly, the welding precision of the oil cylinder mounting seat is guaranteed, and the welding efficiency is improved. And on the other hand, the post-welding machining procedure is reduced, the prod