Fully automatic assembly of solid state drive

 Demand description 

1. Is the opening of the circuit board aligned with the bottom screw hole?

2. Is the cover plate hole aligned with the circuit board and the bottom screw hole?

3. The length and width of the product

4. After the screw is finished, check if there are scratches around the hole.

 Program process 

1. After the circuit board is placed on the bottom seat, take a picture and detect it. The two stations on both sides use cameras to detect it. First locate the position of the circuit board pad, and then detect the size and position of the white area in the center of the circuit board pad to determine whether the circuit board is biased. There are three positions in total that need to be detected.

2. After the back cover is closed, the camera is used to detect the stations on both sides. First locate the position of the back cover that needs to be perforated, and then detect the size and position of the white area in the center of the back cover that needs to be perforated to determine whether the back cover is covered. At the same time, the software detects whether the periphery of the hole is scratched by a screwdriver. There are four positions in total that need to be detected.

3. Through camera calibration, after converting the cameras on the left and right sides to the same coordinate system, the width of the product is detected by measurement to detect whether the back cover is covered.

 Project configuration 

Camera: 2 million pixels

OdinVision brand CCD industrial camera, resolution 1600×1200 image surface size 1/1.8“ cell size 4.40µm frame rate 19.9fps shutter type global black and white, the theoretical accuracy can reach 25/1600=0.015mm.

Lens: Telecentric lens 0.288 times, working distance is 95 mm.(The working distance is the distance from the bottom of the lens to the surface of the product)

Light source: white coaxial light source

Light source controller: analog controller.

software：Advanced Vision Builder(AVB)