Assembling method of clamp for assembling tool box

The invention discloses a clamp for assembling a tool box and an assembling method thereof. The clamp comprises a base station, wherein the base station is provided with an assembly interval; a fastening device is arranged in the assembly interval; a front hopper and a rear hopper which are used for storing assembly components are respectively arranged before and behind the assembly interval; a front hopper power device is arranged at the position of the base station, which corresponds to the front hopper; and a rear hopper power device is arranged at the position of the base station, which corresponds to the rear hopper. An assembling method of the clamp comprises the following steps of: storing a metal needle in the hoppers; placing a turning cover on which a metal clamping piece is arranged into the assembly interval and fixing; preassembling an upper cover and a base and placing into the assembly interval and fixing; opening the front hopper power device and the rear hopper power device to enable the meta