How is the connector made?

A connector is a coupling device that connects electrical terminals to form an electrical circuit. In many places in life, connectors are used in electronic devices such as automobiles and computers.

Many people think that there are too many types of electronic connectors, and the manufacturing process should be different. In fact, the manufacturing process of the connector is basically the same, which can be divided into four manufacturing processes: Stamping, Plating, Molding, and Assembly.

l Stamping is the use of large high-speed presses to stamp electronic connectors (pins) from thin metal strips. One end of the large-volume metal strip is fed into the front end of the punching machine, and the other end is wound into the take-up reel through the hydraulic working table of the punching machine, and the metal strip is pulled out by the take-up reel and rolled out to punch out the finished terminal.

l The connector pin should be sent to the plating stage after stamping.

   During the electroplating stage, the electronic contact surface of the connector will be plated with various metal coatings, nickel plated, tin plated, plated with gold to prevent oxidation and enhance electrical conductivity. The distortion, chipping or deformation of the pins during the feeding of the punched pins into the plating equipment. These quality defects are easily detected by the above techniques.

l Molding injection refers to the production of a plastic case for an electronic connector by injecting molten plastic into a metal film and then rapidly cooling it. Also pay attention to the detection of "Short Shots" when the molten plastic is not completely filled with the film, which is a typical defect that needs to be detected during the injection molding stage.

      Other drawbacks include the filling or partial blockage of the jacks (the jacks must be kept clean and clear for proper insertion with the pins during final assembly).

l The final stage in the manufacture of assembly electronic connectors is the assembly of finished products. There are two ways to assemble the plated pins and the injection box holder: the first one is a single pair, the single pair refers to one pin at a time; the second is a combined pair plug-in pair, which means that multiple pins are plugged into the box at the same time.

       Regardless of the type of plug-in to be assembled, make sure that all pins do not have any leaks and that positioning must be correct. In addition to ensuring the quality of the product, the manufacturing process of the connector must be safe.