As the core energy storage component of electric vehicles, the tightening quality of the battery pack casing directly determines its sealing protection capability, structural safety, and long-term reliability. The high-frequency fastening of hundreds of screws per pack, stringent torque accuracy requirements, and the need for full lifecycle traceability impose very high standards on the tightening assembly process.

Traditional corded tools are restricted by cable movement, ordinary cordless tools suffer from unstable signals, and manual operations lack adequate error-proofing capabilities. These issues have become core bottlenecks constraining the efficiency and quality of battery pack assembly. The DaniKor TBE/TBD series cordless transducerized tightening tools, paired with a 3D vision positioning and error-proofing system, provide a high-precision, traceable, and fully error-proofed intelligent tightening solution for new energy battery packs.

I. Core Pain Points in Battery Pack Assembly Tightening

Battery pack assembly stations feature numerous screw points, fast cycle times, and complex working conditions. Traditional tightening methods commonly face four types of problems:

1. Difficult Error-Proofing and Traceability: With hundreds of screws of various specifications dispersed across the pack, manual operations are prone to missed fastening, wrong fastening, and sequence errors, making it difficult to achieve single-screw level quality traceability.

2. Low Operational Efficiency: Corded tools are constrained by cable limitations on movement, while ordinary cordless tools suffer from insufficient battery life and high reaction torque during fastening, making it difficult to adapt to high-frequency production cycles of 3 seconds per screw.

3. Poor Signal Stability: The workshop's extensive metal structures can easily shield signals, leading to disconnections and data loss, failing to meet the requirements for real-time production data upload and traceability.

4. Weak Precision Consistency: Under high-intensity continuous operation, torque accuracy tends to degrade, potentially causing sealing failures, casing thread damage, and other quality risks that threaten the safety of the battery pack.

II. DaniKor Cordless Tightening Solution: Deeply Adapted to Battery Pack Assembly Needs

The DaniKor TBE cordless pulse transducer tool and TBD cordless transducer tool cover a torque range of 0.4–80 Nm. They feature an integrated control system and a barcode scanning module, combining portability, intelligence, and high performance. They meet the needs of new energy battery pack assembly across four dimensions: error-proofing, efficiency, data, and precision.

1. Full-Process Error-Proofing and Traceability, Meeting Battery Pack Quality Management Requirements
   Paired with a 3D vision positioning and error-proofing system, it can identify screw points and tightening status in real time, precisely controlling the tightening sequence, torque, and angle parameters for each screw. This fundamentally prevents missed fastening, wrong fastening, and sequence errors, adapting to the complex assembly scenarios with multiple screw specifications and positions typical of battery packs. The tool's built-in barcode scanning module can link the tightening data of each screw to the battery pack's serial number (SN), enabling full lifecycle traceability from production to after-sales service. This aligns with the stringent quality traceability and production control standards of the new energy industry.

2. Cordless, Long Battery Life, and High Durability, Adapting to High-Frequency Continuous Operation Cycles
   The integrated cordless design completely eliminates cable restrictions, offering high operational flexibility and easily adapting to mobile assembly scenarios across different workstations for battery packs. The tool is equipped with industrial-grade power batteries, ensuring it meets the high-intensity production line cycle of 3 seconds per screw.
   The TBE series' pulse function significantly counteracts reaction torque during fastening, reducing operator fatigue during prolonged work. The TBD series features a lightweight carbon fiber body, providing comfort even during extended use. Both products have passed multi-angle drop tests and can maintain initial tightening accuracy for up to 500,000 cycles. They are durable and reduce long-term maintenance costs for battery pack production lines.

3. Stable Data Transmission + Integrated Standalone Operation, Coping with Complex Workshop Conditions
   Equipped with a high-penetration industrial WiFi module, it effectively penetrates metal barriers in the workshop, ensuring stable signal transmission during cross-workstation operations. The device features an automatic data protection mechanism for network disconnections. In the event of a signal interruption, data is automatically cached locally and resumes transmission once the connection is restored, preventing the loss of tightening data and ensuring complete traceability of production data.
   The tool incorporates a built-in controller, integrating strategy configuration, data acquisition, and MES upload functions. It can operate independently even when offline, saving equipment costs and simplifying deployment. The TBD series also supports intelligent SD card sharing, allowing seamless migration of programs and tightening data, making tool replacement simple and reducing production line debugging and equipment management costs.

4. Dual-Mode High-Precision Tightening, Ensuring Battery Pack Assembly Consistency
   Across the full torque range, the traditional mode achieves a 6σ accuracy of ±5%, while the pulse mode achieves a 6σ accuracy of ±7.5%. Customized tightening strategies can be developed for different joint conditions (hard or soft) at various stations, such as the battery pack casing and modules. This ensures stable and precise torque output, effectively avoiding both risks of sealing failure and water ingress due to insufficient torque, and casing deformation or thread damage caused by excessive torque. This guarantees the consistency of the battery pack's structural strength and sealing performance.

The DaniKor cordless tightening solution centers on the core requirements of efficiency, quality, and traceability for new energy battery pack assembly. It addresses the traditional pain points of tightening stations through the operational freedom of cordless design, reliable and stable precision performance, and a fully closed-loop error-proofing and traceability system. This solution not only enhances production line efficiency and reduces quality risks but also helps companies establish a standardized and intelligent tightening assembly system, supporting quality improvement, efficiency enhancement, and safety upgrades for new energy production lines.