The current overload protector (thermal relay) is an electrical protection device composed of multiple parts, including upper and lower covers, reset springs, reset push rods, nuts, rivets and bimetals of key parts. Our company was successful in 2013 The automatic assembly machine for the overcurrent protector developed by the company uses multiple shock disk automatic feeding methods, fully automatic assembly of 8 accessories, automatic riveting, and automatic detection. The manual production of one device can save 6-8 people. The production of overcurrent protectors in the factory has high labor costs, instability in production capacity and quality, thereby improving corporate image and competitiveness.