Tinning device facilitating welding

A tinning device facilitating welding comprises a machining platform, a translation positioning assembly, a lifting abutting assembly and a tinning assembly, the translation positioning assembly is fixedly arranged on the machining platform, the upper end of the lifting abutting assembly is arranged on the translation positioning assembly, and the tinning assembly is arranged at the lower end of the lifting abutting assembly; the tinning assembly comprises a syringe, an injection rod and an injection head, the syringe is in a cylindrical design with an opening in the upper end, an injection opening is further formed in the lower end of the syringe, the injection rod is arranged in the syringe in a penetrating mode from top to bottom and can movably ascend and descend, the injection head is in an inverted-funnel-shaped structural design with openings in the upper end and the lower end, and the injection head is fixedly arranged on the injection opening. According to the utility model, the injection type tinnin