The invention discloses a
system and a method for detecting the tab
welding quality of a flexibly packaged
battery cell module, and belongs to the field of
new energy vehicles. A battery module walking
assembly is installed on a first guide rail on the
machine table, the vibration leveling
assembly and the detection
assembly are installed on the same side of the first guide rail, an
ultrasonic welding machine welding head in the vibration leveling assembly and a line
laser measuring instrument sensing head in the detection assembly are both located above the first guide rail, and the sensing head is arranged at the downstream position of the
welding head in the working procedure. According to the
system, related control programs can be flexibly set according to different weld joint positions and numbers of different battery modules, the welding head vibrates on the
busbar near the weld joint by setting the downward pressure of the welding head and the like; according to the method, thewelding seam with poor welding is loosened and tilted, whether the welding seam is welded or not is judged by photographing and scanning, and whether the welding is qualified is judged by measuring the relative
height difference between the tab and the
busbar, so that the tab welding seam subjected to
laser welding meets the requirements of the welding position and reliably fits the
busbar.