Square shell battery sealing nail 2D and 3D detection

Demand description

Station 1: Sealing nails, nail positioning, accuracy requirement of 0.05mm；

Station 2: Pre-spot welding of sealing nails, accuracy requirement 0.01mm;

Station three: The sealing nail is fully welded, and the accuracy requirement is 0.01mm;

 Station 4: Inspection after sealing nail welding, it can detect broken welding, pinholes and burst points (diameter ≥0.2mm), over-kill rate ≤3%, leakage rate ≤0.2%；

 Solution 

  1. 3D camera shooting height and direction information

2. The 2D camera captures information such as pinholes/blackening, etc.

3、Rice 15s/pc

4. Welding defects (residual height, burst holes, pores, etc.)

5. The detection accuracy reaches 0.1mm

6. Whether to manually repair welding according to defect classification to reduce poor welding

 Program process 

1. Use the outer contour of the product to match the template, and realize the initial positioning of the product according to the angle and position coordinates obtained by the matching.After the initial positioning, use the detection circle tool to find the circle, and realize the positioning of the sealing nail according to the position of the center of the circle obtained.

   
   

2. After the initial positioning, use the circle finding tool to find the outer circle of the sealing nail and the inner circle of the groove. The distance between the two centers is used to determine whether the sealing nail is placed in the groove.

3. When the sealing nail is completely placed in the groove, first use the circle finding tool to extract the circle, and then create a straight line through the center of the circle. Secondly, create a vertical line of the straight line, and obtain four intersections. The sealing nail is pre-spot welded, and the nail is biased according to the concentricity of the inner and outer circles.

4. Use the outer contour of the product to match the template, and realize the initial positioning of the product according to the angle and position coordinates obtained by the matching.After the initial positioning, use the circle finder to extract the outer circle of the sealing nail, and realize the full welding according to the center and radius obtained.，

5. Accurately locate the position of the product through template matching, determine the product outline by finding circles, and analyze internal defects.

  Project configuration

  Project picture 3D