Linkage door fitting for automobile assembly line

The utility model relates to the field of linkage door assembling tools, in particular to an automobile assembly line linkage door assembling tool which comprises a base table, an inner pressing mechanism and two sets of outer pressing mechanisms, the inner pressing mechanism comprises four sets of inner clamping assemblies, and the four sets of inner clamping assemblies are symmetrical in pairs and are fixedly arranged in the middle of the base table; the two external pressing mechanisms are symmetrically arranged on the two sides of the internal pressing mechanism, each external pressing mechanism comprises a rotating assembly and two external clamping assemblies, the two external clamping assemblies are symmetrically arranged on the two sides of one end of the base table, the rotating assemblies are fixedly arranged on the base table, and the rotating assemblies are engaged with the two external clamping assemblies; the vehicle door base plate can be pressed and fixed by manually rotating the two sets of c