Screw tightening is a common procedure that we are all familiar with. For manufacturing and assembly industries, it is an important process that closely relates to product quality, productivity, and yield rate. If inconsistent processing occurs, it may cause low efficiency and have a negative impact on small-volume large-variety or high value-added production. What’s worse, traditional screwdriving relies heavily on manual processing, which often results in missing, underdriven, stripped screws, or even cracks on the product surface. In a nutshell, manual operation not only affects product quality and utilization rate but it also fails to comprehensively record screwdriving data, leading to poor quality control.

To deal with manual processing, manufacturers usually employ manual inspection at the end of the process to filter defective products and monitor product quality. However, technicians are still required to record data, which is time-consuming and labor-intensive. To address the above issues, Delta has introduced its brand new Smart Screwdriving System with three key features to help fix customers’ pain points and enhance product quality in electronics and electric vehicle manufacturing. The first feature is process planning. By setting screwdriving parameters through its user-friendly controller interface, the system helps achieve precise control of tightening torque, angle, and rotation speed for optimal screwdriving quality. 

The second feature is data collection. Operators can download orders via a Manufacturing Execution System (MES) to the screwdriving system. The system then conducts screwdriving based on the preset parameters and further records processing data. These useful and complete reports assist operators in verifying screwdriving results, analyzing manufacturing quality, and tracing the production process. Last but not least, flexible usability is the third highlight of the Smart Screwdriving System. One controller is capable of driving two screwdrivers and can store up to 500 sets of parameters and tightening sequences. The system can also work with industrial robots for more extensive automation. In addition, Delta has developed dedicated system architecture for the electronics and electric vehicle industry. With a simple adjustment, the Smart Screwdriving System can be integrated into the manufacturing process swiftly and effortlessly.

Delta has integrated its Smart Screwdriving System with hardware such as HMIs, drives, and sensors, as well as software such as the MES system and SCADA system. The screwdriving solution has been fully implemented in Delta’s manufacturing sites in Wujiang, China and Thailand, which exponentially enhances production efficiency and product quality. The former plant produces industrial automation devices and the latter manufactures electric vehicle components. By leveraging its advanced functions and successful applications, the Delta Smart Screwdriving System helps the assembly industry move further towards smart manufacturing.  

On the production line, operators can set screwdriving parameters through a user-friendly controller interface to achieve precise control of tightening torque, angle, and rotation speed for optimal screwdriving quality.