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Surface mount technology SMT is a more popular technology and process in the electronic assembly industry. To ensure the success of SMT production, at least three conditions must be accurately controlled: including solder paste supply, placement material comparison, reflow and inspection checks. In order to manage the above-mentioned key factors, and driven by external and internal demands, companies often need to introduce new management techniques and methods to support the needs of management and development.
With the rapid development of electronic technology and the shortening of product cycles, high requirements have been placed on PCB assembly manufacturers. At the same time, global competition has put more and more pressure on enterprises. If modern PCB board assembly and manufacturing enterprises want to survive and develop in the competition, they must adopt new production models so that customers can get quick response and provide high-quality products. At present, the new efficient management technology for enterprises is system integration and information integration.
Many companies continue to improve the automation of placement production lines and introduce high-quality corporate management systems, which have improved the level of production management of their companies.
But generally MRP2/ERP only manages enterprise-level resource planning, it can usually only process historical or forecast data, and cannot reflect the current status and data in a timely and accurate manner. At the same time, the on-site production equipment control system cannot transfer production data to the upper-level resource management system in real time. As a result, the enterprise resource planning layer lacks information support, and the control link cannot be effectively optimized.
How to effectively combine the advanced production line control system and the enterprise-level production management information system and build a bridge between the two is a problem that needs to be solved in the construction of enterprise information. MES manufacturing execution system can solve this problem. The manufacturing execution system is a management information system oriented to the shop floor between the plan management system at the upper level and the production process control system at the bottom. It collects on-site real-time data to optimize management of the entire production process from order placement to product completion.
The PCB board assembly industry is a typical process manufacturing industry with a high degree of equipment automation. In order to fully tap the production potential of advanced equipment, optimize production behavior, and comprehensively improve the level of enterprise information management, the construction and application of MES system is particularly important.
Summary of MES system solutions for the assembly industry:
1. At present, MES system is widely used in China. Enterprises should customize an MES system that meets their company's needs and development process through analysis and planning according to the company's internal and external conditions. For the assembly industry, the requirements for information automation are relatively high. The implementation of the MES system can start from data collection and monitoring, and on this basis, data quality analysis, process scheduling, etc. will be effective.
2. MES system is a bridge for communication between production and management information, and plays a role in linking the past and the next in the enterprise information integration system. The ERP system without MES will not be able to quickly organize production according to market demand. Therefore, the MES system should handle the interface with the upper-level ERP system.
3. Agile production is the core of the advanced manufacturing model. Traditional MES system solutions are difficult to adapt to this requirement. The MES system for agile manufacturing must have good integration, configuration, adaptability, scalability and reliability.
The construction goals of the MES system for the PCB board assembly industry are:
1) Build an MES platform with a unified basic data and system framework. Provide customized user interface, business modules and secondary development.2) Develop an MES system with the goal of dynamic quality control of the production process based on the requirements of the lean production management model. Through the establishment of SMT assembly line production process management control model. Information data is collected and uploaded in real time, monitored and dispatched. Realize the integrated information management from product production task assignment, equipment management and on-site dynamic scheduling.
3) Provide dynamic quality analysis methods, real-time quality problem alarms, promote the improvement of management level, and make the quality management mode transition from manual inspection to automatic processing and real-time control. Establish a quality knowledge base to promote the optimization of quality standards. Through the cyclic process of collection, analysis, processing, and accumulation, the quality is improved.
4) Complete the integration with the existing information system of the enterprise.
According to the characteristics of the PCB board assembly industry, the functional module division mainly includes data collection, monitoring and alarm, dynamic quality process control, process planning and scheduling, equipment management, auxiliary production site management, etc.
