Automobile white body welding production line and whole automobile assembling production line

The invention discloses an automobile white body welding production line and a whole automobile assembly production line, the automobile white body welding production line is used for welding and installing an automobile white body, the automobile white body welding production line comprises a device machine base, a first installation station, a second installation station and a welding station are formed on the device machine base, the first mounting station and the welding station are arranged in a spaced mode in the first direction, and a spot welding position and a full welding position which are distributed from bottom to top are formed at the welding station; the first conveying device comprises a first conveying rail extending in the first direction, and the extending path of the first conveying rail passes through the first mounting station and the welding station; the carrying robot can move between the first mounting station and the second mounting station; the grabbing and transferring device is co