Assembly assembly line, is a production line used to assemble printed circuit boards (PCBs). It is an automated production system for soldering various electronic components (such as chips, resistors, capacitors, etc.) and connectors onto PCBs to complete the assembly process of electronic products.
PCBA assembly line usually includes the following major steps:
1.
Printing and Insertion: Solder paste is applied to the PCB and the component mounting points are marked on the PCB by printing technology. Surface mounted components (SMD) and plug-in components are then manually or automatically mounted onto the PCB.
2. Soldering: Using SMT soldering technology, SMD components are soldered to the PCB via reflow or wave soldering techniques. Plug-in components can be accomplished by wave soldering or hand soldering.
3.
Inspection and testing: Visual inspection and automated optical inspection (AOI) are performed to ensure that the components are properly mounted and soldered. Functional and electrical testing is then performed to verify the functionality and performance of the assembled electronics.
4. Cleaning: The PCB is cleaned after soldering using specialized cleaning equipment to remove any residual solder paste or dirt that may be present.
5. Whole board test: The whole assembled electronic product is subjected to comprehensive functional and performance tests to ensure product quality and reliability.
6. Packing and Shipping: Pack the tested electronic products and prepare them for shipping to customers.
The use of PCBA assembly line can improve productivity, ensure product quality and consistency, and reduce human error. It is widely used in the electronics manufacturing industry, including consumer electronics, communication equipment, industrial control equipment, medical equipment and other fields.