With the development trend of mechanical engineering, the utilization rate of copper terminals is getting higher and higher, and there are more and more suitable situations. Although copper core wire terminals are a good product for connecting power lines, for better transmission and reasonable power line connection, several common methods must be mastered. General standard for copper terminal interface: 1. Welding is the most common teaching strategy. Important scientific research is welding-led data information, that is, connecting terminal arrangement surface and tin intermediate information, leading to the sustainability of metal materials. For the design requirements of this connection management scheme, the terminal block should be malleable so that students can produce better expected results. 2. Pressure connection. This method is to make the copper smart terminal smaller in the standard and then connect it, which is more suitable for harsh environments, especially in the current area, and the smaller one is the only interface standard, because this method will be more stable than soldering , but note that the small is a permanent connection and can only be used once. 3. Cable winding. This way, the power wires are damaged by the winding guns and stationary electromagnets, which are usually wound and touch the parts smoothly to create a better seal. Few people use such sockets. Since this method requires a lot, there are clear requirements for the diameter of the power line and the expansion of the raw material of the power line, and there are certain restrictions on the use, which is not easy to use on a large scale.