Automobile fault diagnosis instrument is an important instrument in vehicle maintenance. After the OBD connector of the diagnostic instrument is correctly connected to the car diagnostic interface, the diagnostic instrument can easily read various parameters of the vehicle and assist the vehicle in quick maintenance and inspection. So how are OBD connectors manufactured? Today, let us walk into the production base of the connector spot factory TXGA, and have an in-depth understanding of the production process of automotive OBD connectors.
The first step in OBD connector production is terminal stamping. TXGA uses 0.8mm high-quality copper alloy raw material, which has high material strength, less impurities and good electrical conductivity. The molds used are developed and designed by the TXGA mold engineer team. Before the official production, they have gone through professional design, review, mold trial, mold repair and other links to ensure the quality of the mold and stamping parts. During production, the copper alloy strip enters a high-speed precision punching machine, which punches at a high frequency of 500-1000 punches per minute, and instantly completes the processes of cutting, blanking, punching, and bending, with a processing accuracy of 0.01 mm. Finished stamped terminals remain in ribbon form, brought out by eccentrics and packaged into discs for easy electroplating.
After the electroplating is completed, the terminal strip needs to be cut into individual conductive terminals by the terminal automatic cutting machine before entering the injection molding process.
Before injection molding, the plastic raw material should be baked first. After the pc engineering plastic used in the OBD connector enters the barrel, the temperature of the drying barrel should be set to 70-90 ℃, and the drying should be continued for 4 hours. In order to reduce the moisture in the plastic, ensure the appearance and mechanical strength of the product after heating and injection molding.
The dried raw material will enter the heating tube and be heated to a molten state. The operator needs to put the terminal in the reserved terminal position of the OBD connector injection mold, then close the safety door, and the injection molding machine starts to close the mold. The nozzle of the precision injection molding machine will quickly fill the mold cavity with the molten material. After the molten material is cooled and formed, the mold is automatically separated. At this time, the terminal is firmly fixed in the plastic body, and the excess waste is directly sent out by the robot arm. The operator only needs to take out the injection-molded OBD body. You can proceed to the next step - via soldering.
In the through-hole welding process, first put the main body of the OBD connector into the welding tool, and install the pcb board with the welded pin headers, and then put the tool on the console of the automatic welding machine. The welding machine automatically locates the welding position and melts the tin for welding. After the welding is completed, the operator checks that the solder joints are full and there is no virtual welding or continuous welding, and the connector enters the next process - shrapnel installation.
When installing, you need to use flat-nose pliers to hold the shrapnel, and then install it into the notch of the connector body. The concave structure of the shrapnel can hang the plug after the connector is mated with the car diagnostic interface. Make the male and female headers more firmly inserted. After completing the installation of the shrapnel, you can enter the final inspection process.
Circuit testing. After the tester inserts the OBD connector with the test head, the tester will automatically test the electrical performance of the connector to ensure that each terminal can conduct normally. Appearance inspection adopts visual inspection method, and each product is manually inspected for scratches, cracks, burrs or small dirt. At the same time, TXGA also has systems such as random inspection, patrol inspection, and analysis of defective parts. Make sure that each connector is a qualified product when it leaves the factory.
After passing the inspection, the OBD connector can be packaged into the warehouse, waiting to be loaded and sent to all parts of the world.
From a roll of copper tape, a bag of plastic, to a reliable connector in the hands of customers, TXGA insists on controlling every detail of production, dedicates high-quality and reliable products to customers, and builds a solid foundation for the electronic technology industry. Purchase the connector, come to the connector stock factory TXGA.
