The images are processed by Scorpion Vision Software on a compact PC located inside the inspection system. Image processing is carried out before inspection takes place, using software filters to normalise the light level across the image. The second stage of this image conditioning is the conversion of the images using a propriety filter within Scorpion Vision Software that ‘flattens’ the surface area to be inspected. The vision system then scans the structure and locates any marks or deviations in the surface of the metal.
The system operates in a semi-automatic manner in that it is ‘fed’ new clamps from a rotating bowl feeder singularly, with each inspection taking 8 seconds, the longest process being the time the clamp takes to travel along the conveyor before it arrives at the other end of the machine.
A pass will let the clamp continue on to the end of the conveyor and into a pallet ready for packaging. If a clamp fails inspection, a pneumatic device will open a trapdoor so that the clamp falls into a reject bin.
Walsall Pressings can be confident that the machine will inspect 100% of the parts and that any flaws in the surface of the metal will be detected.