Hook buffer maintenance assembly line and hook buffer maintenance method

The invention relates to the technical field of coupler buffer overhauling, in particular to a coupler buffer overhauling assembly line and a coupler buffer overhauling method.The coupler buffer overhauling assembly line comprises a buffer overhauling conveying line, a coupler tail frame transfer line, a coupler tail frame shot blasting cleaning system, a coupler tail frame overhauling line, a coupler tail frame paint dipping drying line and a first coupler tail frame assembling conveying line; the universal coupler buffer disassembling machine is used for disassembling coupler buffer workpieces, the disassembled buffers are inspected and maintained on the buffer overhaul conveying line, and the coupler tail frame workpieces are sequentially transferred through the coupler tail frame transfer line and subjected to surface shot blasting through the coupler tail frame shot blasting cleaning system. A coupler yoke overhauling turnover machine and a coupler yoke magnetic powder flaw detector of the coupler yoke o