Recently, Delta provided a PCB conformal coating dispensing and inspection solution for an electronic automotive component manufacturer in Tianjin, China. The solution integrates Delta’s motion controller and machine vision system to precisely control the amount of conformal coating and the dispensing positions and it can implement using automated optical inspection (AOI) with direct UV ring light. It shows fast results, enables high precision of the dispensing effect, and integrates the necessary processes, including dispensing coatings, bake-out, and inspection for high manufacturing efficiency. The solution features the following advantages:

Highly efficient and precise positioning for dispensing coatings
Conformal coatings can be flawlessly applied onto PCBs through precise positioning with the machine vision system, and it can quickly identify the dispensing and non-dispensing areas. The Multi-axis Motion Controller DVP-50MC Series conducts 3-axis gantry operations to dispense coatings at a high speed with adequate amount, and this prevents over- or intermittent dispensing.

Easy operation for flexible changeover 
The electronic automotive component manufacturer can control the processes of PCB coating dispensing, baking and inspecting
directly on the Human Machine Interface DOP-100 Series. With the user-friendly and editable interface, the customer can save time developing different interfaces for various operations and implement fast changeover by only exchanging the positioning modules and photomask areas for dispensing.

Seamless integration with one-stop-shop service
The key components involved in the solution are designed and manufactured by Delta for seamless integration and operation guarantee.

This saves maintenance costs and time and reduces anomalies and product line shutdown. The machine vision system helps the customer inspect the coatings with high efficiency and quality, and the secondary inspection only requires a little time and manpower.