After the automation transformation of high-frequency PCB production lines, the increase in production efficiency is usually 35% to 60%, which depends on the original automation foundation of the production line, the coverage of process automation, and the adaptability of the process.
1, Quantitative range for efficiency improvement
The production line that originally relied on manual processes (such as plug-in assembly, visual inspection, and manual testing) accounted for ≥ 60%, but after the transformation, the efficiency has been improved by about 50% to 60%;
The original semi-automatic production line (automatic mounting+manual visual inspection) has been improved by about 35% to 45% after renovation;
Local modifications that do not cover key processes (such as high-frequency board pretreatment), with an improvement rate of less than 20%, have no practical value.
2, Key factors affecting the degree of improvement (1) Process adaptability
High frequency PCB materials (Rogers, PTFE, etc.) require equipment accuracy of ± 0.05mm. If the equipment calibration does not meet the standard, it will lead to a decrease in mounting/testing yield, indirectly reducing efficiency;
Standardization level of panel assembly: The manual panel assembly and changeover time is about 15-20 minutes per time, while the automated panel assembly needs to match the fixed size of the equipment. Unreasonable panel assembly will increase the changeover time and offset some of the efficiency improvement. (2) Automated coverage rate
Only by renovating the installation process and increasing it by about 15%, it is necessary to cover the entire process of loading and unloading, AOI automatic detection, ICT testing, and board splitting in order to achieve an improvement rate of over 35%;
Automated material storage AGV can increase turnover efficiency by an additional 5% to 10%.
3, Verification requirements for efficiency improvement
Using the ratio of qualified boards per unit working hour for calculation, non production time such as equipment debugging and changeover needs to be deducted;
The operation of automated equipment needs to be debugged and maintained by SMT professionals certified by IPC to avoid accuracy deviation affecting efficiency.
