How to See the Quality of the Connector from the Plating Problem?

As a FAKRA Long Female Connector Factory, share with you. Now, in the colorful world of the connector market, the shape of the connector is ever-changing, users not only from straight, bent, the outer diameter of the wire or cable and the fixing requirements with the shell, volume, weight, whether to connect metal hoses In terms of selection, the connectors used on the panel must also be selected from the aspects of aesthetics, shape, color, etc. However, there are inevitably some phenomena of overcharging in the connector, which is a mixed country.

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There are many types of connectors, but the manufacturing process is basically the same, generally can be divided into the following four stages stamping, plating, injection, assembly, of which from the plating stage we can See the quality of professional connectors.

The connector pin should be sent to the electroplating section after stamping. At this stage, the electrical contact surface of the connector will be coated with various metal coatings. A type of problem similar to the stamping stage, such as twisting, chipping or deformation of the pin, will also occur during the process of feeding the punched pin into the electroplating equipment. Such quality defects are easily detected.

Because some types of connector pins need to be coated with multiple layers of metal, manufacturers also hope that the inspection system can distinguish between various metal coatings in order to verify that they are in place and in correct proportions. This is a very difficult task for a vision system using a black-and-white camera, because the gray levels of images with different metal coatings are practically the same. Although the camera of the color vision system can successfully distinguish these different metal coatings, due to the irregular angle and reflection of the coating surface, the problem of difficult lighting still exists.

However, for most of the machine vision system Car Connector, many quality defects that appear in the plating process still belong to the "forbidden zone" of the inspection system. Electronic connector manufacturers hope that the inspection system can detect various inconsistent defects such as fine scratches and pinholes on the connector pin plating surface.

Although these defects are easy to identify for other products (such as aluminum can bottoms or other relatively flat surfaces); due to the irregular and angled surface design of most electronic connectors, visual inspection systems are difficult to obtain It is enough to identify the images required for these subtle defects.

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