Lithium battery cell pack line detection system

 Project overview 

In order to be able to meet the machine vision needs of customers' highly automated production lines, we provide a complete machine vision project system integration solution.From the customer site, OdinVision has an in-depth understanding of the production process of the entire battery pack line, from feeding to entering the closed loop of the downstream production line, every production link urgently needs to complete the quality control and production control with high efficiency and high quality. Odinvision machine vision products tailor-made battery pack line visual inspection solutions for them, through Odinvision intelligent machine vision software Advanced Vision Builder(AVB), vision controller, camera, lens, light source, digital light source controller and other hardware and software, to build a complete battery pack line inspection system for customers, to help customers achieve CCD positioning labeling, alignment, high-precision dimensional measurement, assembly positioning guidance, solder joint detection and other visual inspection requirements, so as to achieve the purpose of helping customers improve product quality and production efficiency.The following is selected from the visual inspection cases of two of the production processes：

 Project configuration 

【Analysis of key technologies and indicators】

1. Input battery：

Camera field of view: FOV=21x15.75mm; camera working distance: WD=130mm

Detection accuracy: visual pixel accuracy = 0.008mm/pixel

The pixel composition of the camera: 2592*1944, frame rate: 14fps, Cmos camera pixels are 5 million

The visual repeat positioning accuracy can be 0.1-1 pixel, and the positioning time for taking pictures is about 0.2s.

2. PSA1 glue bonding inspection：

Camera field of view: FOV=21x15.75mm; camera working distance: WD=130mm

Detection accuracy: visual pixel accuracy = 0.008mm/pixel

The pixel composition of the camera: 2592*1944, frame rate: 14fps, Cmos camera pixels are 5 million

The visual repeat positioning accuracy can be 0.1-1 pixel, and the positioning time for taking pictures is about 0.2s.

3. PSA1 glue bonding：

Camera field of view: FOV=22.8*17mm; camera working distance: WD=130mm

Detection accuracy: visual pixel accuracy = 0.0059mm/pixel

The pixel composition of the camera: 3840*2748, frame rate: 10fps, Cmos camera pixels are 10 million visual repeat positioning accuracy can be 0.1-1 pixel, and the camera plus positioning time is about 0.2s.

 Detect visual effects 

 Project configuration  

 Detect visual effects 

【Analysis of key technologies and indicators】

1. Battery positioning：

Camera field of view: FOV=20.46x15.35mm; camera working distance: WD=240mm

Detection accuracy: visual pixel accuracy = 0.0053mm/pixel

The pixel composition of the camera: 3840*2748, frame rate: 10fps, Cmos camera pixels are 10 million

The visual repeat positioning accuracy can be 0.1-1 pixel, and the positioning time for taking pictures is about 0.2s.

2. Functional glue positioning：

Camera field of view: FOV=18x14.25mm; camera working distance: WD=105mm

Detection accuracy: visual pixel accuracy = 0.007mm/pixel

The pixel composition of the camera: 3840*2748, frame rate: 10fps, Cmos camera pixels are 10 million

The visual repeat positioning accuracy can be 0.1-1 pixel, and the positioning time for taking pictures is about 0.2s

3. Functional glue detection：

Camera field of view: FOV=17x12.8mm; camera working distance: WD=150mm

Detection accuracy: visual pixel accuracy = 0.007mm/pixel

The pixel composition of the camera: 2592*1944, frame rate: 14fps, Cmos camera pixels are 5 million

The visual detection accuracy can be 5-10 pixels, and the camera and positioning time are about 0.2s.