Technology device for general welding

The utility model provides a technology device for general welding, comprising a platform, a first rack body and a second rack body which are both disposed on the platform along a vertical direction. The first and second rack bodies both comprise a general ear hinge positioning assembly for positioning the ear hinge of a workpiece to be welded. The first and second rack bodies also comprise a general ear hinge positioning base, an ear hinge positioning plate which is disposed at a first side of the general ear hinge positioning base along a vertical direction and is provided with a horizontal location hole, an ear hinge positioning shaft sleeve which penetrates the horizontal location hole with an inner hole of the ear hinge positioning shaft sleeve forming an ear hinge location hole and one end of the ear hinge positioning shaft sleeve having an ear hinge positioning boss, an ear hinge positioning lock ring which is detachably connected to a second end of the ear hinge positioning shaft sleeve, and a positioning pin penetrating the ear hinge location hole. The technology device for general welding resolves the problem of the prior art that universality is poor.