Surface coating structure for solder lugs of convenient bucket

The invention provides a surface coating structure for solder lugs of a convenient bucket. The surface coating structure ensures quick and convenient coating of the solder lug parts, can accurately control the coating area and consumption, and therefore improves the quality of the convenient bucket. The surface coating structure comprises a base allowing the convenient bucket to be placed thereon, wherein a support capable of going up and down in the vertical direction is arranged right above the base; two first horizontal cylinders arranged back to back are mounted at the lower end of the support; an inner coating device is fixedly mounted at the tail end of each first horizontal cylinder; two outer coating devices are arranged at the outer ring position of the convenient bucket, are in one-to-one correspondence to the inner coating devices and are arranged at the same angle positions as the inner coating device relative to the convenient bucket; a second horizontal cylinder is arranged on the outer side of