As a kind of connector, the terminal block is an important component in the electrical industry, and it plays an irreplaceable and non-negligible role. Because engineers and technicians first check the interface, that is, the terminal, when overhauling, the terminal block design is particularly important.

During the test of the crimped wire, it is often found that the individual core crimped wires are not delivered in place, or cannot be locked after they are delivered, and the contact is unreliable. The reason for the analysis is that there are burrs or dirt on the screw teeth of individual installation holes. Especially when using several installation holes that have been installed in a plug socket by the factory, after finding the defect, we have to unload the crimped wires in the other holes that have been installed one by one, and replace the socket socket again. In addition, due to improper selection of the wire diameter of the wire and the crimping aperture, or due to the wrong operation of the crimping process, an accident that the crimping end is not strong will also be caused.