Cable connector

The utility model discloses a cable connector, which relates to the field of welding equipment and comprises a socket mechanism, a plug mechanism and a conducting ring. The socket mechanism comprises a socket body, a first air pipe communicated with the interior of the socket body and a first cable electrically connected with the socket body; the plug mechanism comprises a plug body matched and plugged with the socket body, a second air pipe communicated with the interior of the plug body and a second cable electrically connected with the plug body; and the conductive ring is arranged between the socket body and the plug body and is used for electrically connecting the socket body and the plug body. Through the structural design, conductive connection requirements and ventilation connection requirements can be simultaneously met by utilizing one-time plugging between the socket body and the plug body, and the socket has the characteristics of simplicity and convenience in operation, high efficiency, small occ