TY - JOUR AU - Hoang Quoc Tuan, AU - Pham Xuan Hien, AU - Nguyen Cong Thuat, PY - 2019/07/10 Y2 - 2024/03/29 TI - RESEARCH, DESIGN AND MANUFACTURE OF AUTOMATIC LENGTH-BASED SPRING CLASSIFICATION MACHINE JF - UTEHY Journal of Science and Technology JA - jst VL - 22 IS - SE - Articles DO - UR - http://tapchi.utehy.edu.vn/index.php/jst/article/view/35 SP - 13-17 AB -  In study, an automatic length-based spring classification machine has been successfully designed and fabricated. It has ability to automatically the springs which has the length range of 20-50 mm. The number of good and bad springs are also monitored and displayed on the LCD screen. This machine using a cheap microcontroller is in stable operation. It help to reduce labor cost and improve labor productivity. ER -