Compression spring design
Compression spring design
(OP)
Hello,
I am designing a tool that will hold parellels against the inside faces of a vise. I am having problem selecting the right compression spring. I do not know how to calculate the required load (a machinist should be able to fully compress it with one hand) in order to deternime the number of coils or materials to use or even wire diameter. My guess is that it should be resistant to typical CNC mill coolant. What I do know is that is should fit over 3/8 inch diameter tubing, a free lenght of 8.500 inch or more and a minimum working lentgh between .750 - 1.000 inch.
Thank you.
I am designing a tool that will hold parellels against the inside faces of a vise. I am having problem selecting the right compression spring. I do not know how to calculate the required load (a machinist should be able to fully compress it with one hand) in order to deternime the number of coils or materials to use or even wire diameter. My guess is that it should be resistant to typical CNC mill coolant. What I do know is that is should fit over 3/8 inch diameter tubing, a free lenght of 8.500 inch or more and a minimum working lentgh between .750 - 1.000 inch.
Thank you.





RE: Compression spring design
Tunalover
RE: Compression spring design
Why don't you take this to forum 693 spring engineering?
B.E.
RE: Compression spring design
RE: Compression spring design
RE: Compression spring design
Try this calculator:
http://www.engineersedge.com/spring_menu.shtml
RE: Compression spring design
I keep a spring scale at my desk. If I want to figure out how much force to exert on something, one option is to pull on the spring scale. I can exert a force I feel comfortable with, then I can put a number on it.
RE: Compression spring design
Selecting how strong a spring you want can be surprisingly tricky. A colleague and I got it fairly wrong once and ended up with a tool that once closed was almost impossible to open. Not my finest hour, and this was done with a bunch of calcs to try and find the required load, I'm guessing we made a mistake in our assumptions somewhere.
KENAT,
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RE: Compression spring design
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