Automobile inner plate robot coating engineering paint slag falling-free automobile door limiting jig

The utility model belongs to the technical field of automobile coating engineering, and discloses an automobile inner plate robot coating engineering paint slag falling-free automobile door limiting jig which comprises an automobile door lap joint plate and a positioning pull rod movably arranged on the automobile door lap joint plate in a penetrating mode. A plurality of extending structural plates are arranged on the vehicle door lap joint plate towards the same side, a moving space for the positioning pull rod to move is formed by the extending structural plates, and a clamping mechanism is arranged at the end, away from the vehicle door lap joint plate, of each extending structural plate; the positioning pull rod comprises a first rod section and a second rod section, one end of the first rod section is used for being connected with a vehicle body, a plurality of opening positioning grooves corresponding to the clamping mechanism are formed in the second rod section, and when the positioning pull rod is i