Nut mounting device suitable for mounting nut on bolt

The invention provides a nut mounting device suitable for mounting a nut on a bolt, and the nut mounting device comprises a shell, at least one of two opposite side surfaces of the shell is provided with a strip-shaped opening penetrating through the shell in the height direction, four strip-shaped protrusions which are symmetrical in pairs and extend in the height direction are formed in an inner cavity of the shell, and the strip-shaped openings and the strip-shaped protrusions form nut bins suitable for storing nuts. The telescopic mechanism is installed in the shell, and the telescopic mechanism is constructed to push the nut in the nut bin to move towards the top of the shell; and the limiting mechanism is installed on one side in the shell, and the limiting mechanism is configured to control the telescopic length of the telescopic mechanism so as to control the nuts in the nut bin to sequentially move towards the top. 本公开提供了一种适用于将螺母安装到螺栓上的螺母安装装置，该螺母安装装置包括：外壳，外壳的两个相对的侧面中的至少一个侧面上设有在高度方向上贯穿外壳的条形开口，外壳的内腔形成有