Pneumatic Screw Gun Motor

khewes · Aug 18, 2016

Hello All,

I'm working on an air logic system where I want to detect when an air motor activates. When an air motor activates does it draw more psi? or anything of the sort? im super lost.

If there is anyway to detect when an air motor is on or off please let me know! or send me in the right direction!

Thank you ,
Kris

just the cowboy · Aug 18, 2016

Something like this

You would need something like this pressure drop would not be reliable enough . http://www.ifm.com/ifmus/web/pmain040_030_010.htm

mendonsy · Aug 18, 2016

Something like a prox sensor to detect rotation of the motor shaft would be a lot more reliable.

AGill · Aug 18, 2016

Are you using a solenoid to start the air motor? If so, use the signal that turns on the solenoid.

khewes · Aug 18, 2016

AGill said:
Are you using a solenoid to start the air motor? If so, use the signal that turns on the solenoid.

no solenoid. and the application is for an pneumatic screw gun with tool arm, so i cannot exactly get in there and change the hardware to add a prox sensor.

perhaps i could add solenoid. I will look into it,

Right now i believe a precise flow control valve or something of the sort is the way to go.

Thanks all

mendonsy · Aug 18, 2016

If it is a manually operated screw gun about the only thing you can do is to detect air flow or possibly a pressure drop in the air line. That will tell you that the screw gun is trying to run but not necessarily that it is actually running.

khewes · Aug 18, 2016

mendonsy said:
If it is a manually operated screw gun about the only thing you can do is to detect air flow or possibly a pressure drop in the air line. That will tell you that the screw gun is trying to run but not necessarily that it is actually running.

im struggling to find the component needed.

i want to detect the air flow, and when the air flow is detected i want to activate a switch. when the air flow stops i want to deactivate the switch. more precision is better

Does such a piece exist?
If so where/what...

Bob O · Aug 18, 2016

Did you follow the link on post #2?

Tom Jenkins · Aug 18, 2016

A flow switch won't confirm rotation, but it will confirm air flow through the supply line. These are available in many styles from folks like FCI, Omega Engineering, Dwyer, Automation Direct, and others.

http://www.automationdirect.com/adc...low_Switches?gclid=CNX-1pbuy84CFYU0aQoderIJNA

http://www.mmcontrol.com/Dwyer/pdf/04-Flow.pdf

Pneumatic Screw Gun Motor

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