Hello,
I am looking into a robotic sanding and grinding project where we would need area scanners. I just spoke with OMRON and they say that their scanners wont work in that environment. Does anyone have any idea on what scanners might work in a metal grinding work shop?
Area Scanner.
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jaiiyer -
August 31, 2023 at 8:46 PM -
Thread is Unresolved
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MOM
August 31, 2023 at 8:50 PM Approved the thread. -
You could use floor safety mats. Or fence it all in and have a method to transfer parts in.
All safety scanners can be tripped by chips.
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On at least some area scanners, it's possible to set a "debounce" time, where they have to be broken for more than a certain amount of time before they fault. Of course, this slows down the reaction time of the scanner, which means you need to increase the physical distance of your safety boundaries to compensate.
IIRC, it's also possible to have area scanners ignore any obstruction that's below a certain size -- say, smaller than a finger.
But if you're throwing clouds of chips or sparks, there's a possibility to exceed either of these limits.
The other issue is dust accumulating on the glass of the scanner. That, you would need to address with some dust visors, and implement some regular PM.
I've always been fond of the Keyence area scanners, they're usually pretty "smart" and easy to work with. SICKs are often regarded as the "Cadillac" of area scanners, and priced accordingly, but they work well.
Going further afield, you might look into Veo FreeMove. It's a 3D system, and uses down-looking optics, so it might be less vulnerable. But it's probably substantially more expensive.
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The other issue is dust accumulating on the glass of the scanner. That, you would need to address with some dust visors, and implement some regular PM.
Did a service call once at a very nasty galvanized welding facility. Dirty, dirty, nasty process. They had SICK scanners on every cell, with custom air knife curtains around every one of them. Kept the lenses clean, but damn was it noisy!
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jaiiyer I pulled one of our SICK floor scanner manuals, and there is just a single mention of air quality.
Keep the area to be monitored free of smoke, fog, vapor and other air impurities.
No condensation must be allowed to form at the light emission window. The
function of the device may otherwise be impaired, which can lead to unintended
shutdowns
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