The automatic assembly machine for flint tooth boxes is an efficient automation equipment designed specifically for flint tooth box assembly. It has highly accurate alignment and assembly functions and is widely used in various application fields such as toy accessories. This device can be customized according to different application fields to ensure precise installation of components and high-quality output of finished products. It adopts the latest technological concept to achieve fully automated assembly from mainspring, iron shaft, gear, reducer to upper cover. The entire production line covers the complete process of feeding, sorting, assembly, fiber optic inspection, removal of defective products to qualified finished product discharge, fully realizing automated production, significantly saving labor and improving production efficiency.