What is the manufacturing process of waterproof connectors?
Waterproof connectors are more and more widely used. Many people who read my previous article should know the advantages and uses of waterproof connectors. So today, you may not know the knowledge of waterproof connectors. The manufacturing process of waterproof connectors is How is it? Today, the engineer from the Lilutong connector manufacturer will introduce to you.
Waterproof connector manufacturing process
1. Stamping
The manufacturing process of electronic connectors generally starts with stamping pins. Through a large high-speed punching machine, the electronic connector (pin) is punched from a thin metal strip. One end of the large coiled metal belt is fed into the front end of the punching machine, and the other end is passed through the hydraulic worktable of the punching machine to be wound into the reel. The reel pulls out the metal belt and rolls it up to punch out the finished product.
2. Electroplating
After the connector pin is stamped, it should be sent to the electroplating section. At this stage, the electrical contact surface of the connector will be plated with various metal coatings. A type of problem similar to the stamping stage, such as twisting, chipping or deformation of the pins, also occurs when the stamped pins are fed into the electroplating equipment. Through the techniques described in this article, such quality defects can be easily detected.
However, for most machine vision system suppliers, many quality defects that appear during the electroplating process are still the "forbidden zone" of the inspection system. Electronic waterproof connector manufacturers hope that the inspection system can detect various inconsistent defects such as small scratches and pinholes on the plating surface of the connector pins. Although these defects are easy to identify for other products (such as aluminum can bottoms or other relatively flat surfaces); however, due to the irregular and angled surface design of most electronic connectors, visual inspection systems are difficult to obtain The image needed to identify these subtle defects.
3. Injection
The plastic box seat of the electronic waterproof connector is made in the injection molding stage. The usual process is to inject molten plastic into the metal fetal film, and then quickly cool it to form. So-called "short shots" appear when the molten plastic fails to completely fill the fetal membrane, which is a typical defect that needs to be detected during the injection molding stage. Other defects include filling or partial blockage of the sockets (the sockets must be kept clean and unobstructed so that they can be correctly connected to the pins during the final assembly). Since the use of backlight can easily identify the missing box seat and plugging of the socket, the machine vision system for quality inspection after injection molding is relatively simple and easy to implement.
4. Assembly
The final stage of electronic connector manufacturing is finished product assembly. There are two ways to connect the electroplated pins to the injection box seat: individual mating or combined mating. Individual mating means inserting one pin at a time; combined mating means connecting multiple pins with the box seat at the same time. No matter which connection method is adopted, the manufacturer requires all pins to be inspected for defects and correct positioning during the assembly stage; another type of routine inspection task is related to the measurement of the distance between the mating surfaces of the connector.
Like the stamping stage, the assembly of the connector also poses a challenge to the automatic inspection system in terms of inspection speed. Although most assembly lines have one to two pieces per second, the vision system usually needs to complete multiple different inspection projects for each connector passing through the camera. Therefore, the detection speed has once again become an important system performance index.
