Can I use arduino to make sure a particular part is fit on assembly at inspection station.
We manufacture assemblies and operators every now and then forget to fit a part. I want to use arduino to detect presence of that part every time and flag the operator if it's not fit.
too vague... each specific problem may require a different solution.
vinayakvaidya:
Can I use arduino to make sure a particular part is fit on assembly at inspection station.
We manufacture assemblies of engines and operators every now and then forget to fit a part. I want to use arduino to detect presence of that part every time and flag the operator if it's not fit.
Parts left over not enough of a clue or do your procedures not make that obvious?
Sorry for not being clear enough.
As i said we manufacture about 70 - 80 assemblies in a day and operators will miss a particular part that goes on top of the assembly.
I want to create a arduino project which will be installed on side of the assembly line. The assemblies will come in front of that in a specific orientation and if a that part is not present then the operator will be flagged by a LED light or a sound.
Sorry for not being clear enough.
But you don't say anything more clear.
If you want us to be able to help you then you have to stop being vague about what this stuff is.
What are the assemblies and what part do you want to detect? Be VERY specific. How you do this and whether it is possible will depend entirely on those answers. Nobody can answer if they don't know what it is that you are looking at.
vinayakvaidya:
The assemblies will come in front of that in a specific orientation and if a that part is not present then the operator will be flagged by a LED light or a sound.
No matter how you approach it this will be a complex task and you have not told us anything useful about the nature of the product or of the parts that you want to detect or how they might be detected. Detecting the absence of something can often be more difficult than detecting its presence.
Perhaps you could weigh the apparatus at different stages of assembly. You can use load cells with Arduinos.
Another option might be using a camera and image recognition. An Arduino is not nearly powerful enough for that.
Or employ a quality control inspector - s/he will already have all the necessary sensors and programs built in at birth.
...R
If each part gets placed in a specific order, an Arduino with a screen and some buttons could be placed next to the operator. The arduino will display the part to be placed. The operator places the part and presses a button to verify that the part is in position. Once each part is placed a green light glows and the operator can start on the next assembly.
darrob:
If each part gets placed in a specific order, an Arduino with a screen and some buttons could be placed next to the operator. The arduino will display the part to be placed. The operator places the part and presses a button to verify that the part is in position. Once each part is placed a green light glows and the operator can start on the next assembly.
I like this.
Simple and effective.
If the operator pushes the button and then ‘doesn't’ place the part, fire their ass.
IMO, you're attacking from the wrong end. The Arduino is irrelevant, you could signal this with a relay and a light bulb. The tricky part is selecting and positioning a sensor, or sensors, to detect part absence. What characteristics does the missing part have which can be sensed?
What characteristics does the missing part have which can be sensed?
And what makes the missing part unique? "It's metal", when the rest of the parts are plastic would make it possible to detect that the part is missing. "It's metal" and so is everything else is going to make detecting the presence or absence of that part much more challenging.
larryd:
I like this.
Simple and effective.
If the operator pushes the button and then ‘doesn't’ place the part, fire their ass.
But the faulty product might be with a customer before you discover there is a missing part - not very effective.
I was reading a product review yesterday in which the item sent to the magazine had different signs on the two sides when they should have been the same.
...R
GoForSmoke:
Parts left over not enough of a clue or do your procedures not make that obvious?
No no no.. That's profit! 
-jim lee
Or "shrinkage" 8)
vinayakvaidya:
Sorry for not being clear enough.As i said we manufacture about 70 - 80 assemblies in a day and operators will miss a particular part that goes on top of the assembly.
I want to create a arduino project which will be installed on side of the assembly line. The assemblies will come in front of that in a specific orientation and if a that part is not present then the operator will be flagged by a LED light or a sound.
You are trying to determine a solution when you have not begun to tell us HOW YOU, personally, tell there is a part missing. Are you looking for something? Are you feeling for something? Exactly how do you sense the part is missing!
Once you can tell us, then, perhaps, someone can provide some semblance of a solution.
Paul
“But the faulty product might be with a customer before you discover there is a missing part - not very effective.”
But the QC person or system test line should catch that.
I'm still unclear whether "assembly" refers to a wristwatch or a Panamax bulk carrier diesel engine.
larryd:
But the QC person or system test line should catch that.
I suggested that in Reply #5
Whatever about missing components, it seems the biggest problem is the missing OP
...R
Robin2:
Whatever about missing components, it seems the biggest problem is the missing OP
Robin2:
I suggested that in Reply #5Whatever about missing components, it seems the biggest problem is the missing OP
...R
The OP was fired.
vinayakvaidya:
Sorry for not being clear enough.As i said we manufacture about 70 - 80 assemblies in a day and operators will miss a particular part that goes on top of the assembly.
I want to create a arduino project which will be installed on side of the assembly line. The assemblies will come in front of that in a specific orientation and if a that part is not present then the operator will be flagged by a LED light or a sound.
If it is only one particular part that always get missed and that part adds significant additional height to the assembly, use an Arduino and two break-beam sensors. Each one set at different heights. If both beams break then close when the assembly passed by, all is good. If only one beam gets broken then closes again, halt the line and sound an alarm.