The Current State and Challenges of Industrial Robotics in the Smartphone Manufacturing Industry

In the past two years, the domestic robotics industry has developed rapidly, with 3C manufacturing and automobile manufacturing becoming the primary markets for domestic robots. In the 3C industry, smartphone manufacturing is the most representative as a labor- and technology-intensive industry. Major Chinese smartphone manufacturers like Foxconn and Huawei are investing more in intelligent manufacturing equipment to improve production efficiency, indicating significant potential for automation transformation in the smartphone industry.

Application of Robots in Smartphone Production

The automated production lines in smartphone manufacturing are divided into assembly lines and component production lines. There are hundreds of assembly processes, and robots currently replace manual work in processes where the tasks are relatively fixed, such as polishing and grinding smartphone cases, loading and unloading machines, stamping, assembling, screen handling, and boxing.

Common industrial robots used on smartphone production lines include 6-axis robots, Scara robots, AGV logistics robots, desktop soldering, and dispensing robots. 6-axis robots are generally used for material handling and grinding; Scara robots are common in assembly (especially for screw driving); AGVs are used for material handling and storage. Desktop robots for dispensing and soldering are used for dispensing glue and soldering.

Two commonly automated processes in smartphone production are dispensing glue and driving screws, as these tasks are relatively simple, and even with frequent smartphone updates, these robots can continue to be used by merely changing the system parameters. The polishing of smartphone cases demands high precision and quality, with curve and line precision being crucial factors, leading to more foreign-made grinding robots in this process. The proportion of assembly robots in smartphone automation is relatively low, as assembly lines rely heavily on skilled workers. However, automating assembly lines has significant potential to increase production efficiency for companies.

Current Challenges in Smartphone Industry Automation

1. Flexibility Challenges: With the increasing variety and personalization of smartphone products, the standardized and large-scale nature of robotic production conflicts with these requirements. This creates a challenge for automation equipment to adapt to flexible production. The rapid changeover of production lines, tooling, and fixtures requires further research to address this flexibility challenge.

2. Investment Return Challenges: The cost of automation is high, and sales and profits for smartphone brands are often unpredictable, especially with the widespread adoption of smartphones leading to thinner profit margins. This makes investment return rates a significant concern for smartphone manufacturers. This challenge is closely tied to the flexibility issue, as without flexible production, automation equipment cannot be used effectively on a large scale, making it even harder to justify investments in smart factories. The typical frequency for changing smartphone production lines is every 6 to 8 months, while the return on investment for automated equipment usually takes 1 to 2 years to materialize. For complete automated production lines, the return period can be even longer, posing survival challenges for smaller smartphone manufacturing plants.

3. Cross-Disciplinary Integration Challenges: There's a peculiar trend in the industry where many manufacturing companies opt to design and build semi-automated or automated equipment themselves instead of procuring them from external suppliers. The reason is that automation equipment must align with a company's production processes, and unfamiliarity with internal processes makes it difficult to create suitable equipment. Production processes are critical to a company's competitiveness, and outsourcing automation equipment production to third parties risks leaking industry secrets.