I really appreciate all the input folks.
Prex, RB1957 & GregLocock thank you, Zekeman thank you for the details and Cockroach thank you so much for the neat upload!
I need to digest this and maybe get back with a question or two when I get a chance to take this information in.
Have a nice...
I am designing a bent spring ;
http://files.engineering.com/getfile.aspx?folder=519f7b2d-4dc6-447c-9e16-72038deeef43&file=Capture.JPG
A simplified version is illustrated in the above link. It consists of two straight sections and a curved section in the middle.
Multiple springs will hold an...
Referring to the attached sheet one. I am designing a simple mechanism that consists of a rotating arm that will lock in position using a steel ball mated in a machined conical cup and a spring force will hold the ball in place...
Thank you Zekeman,
Your are wealth of Knowledge.
So a steel is hardened to have a 130,000 psi working stress, would I be correct in presuming this steel would therefore have a greater resistance to an applied bending force?
For example the L shaped spring we discussed earlier, Its shaped...
Hi Desert fox,
In my last post I was quoting what Zekeman said about the working stress of stainless steel 302.
''Stainless 302 data I have is 130,000 psi working stress for flat spring material''
Maybe It was a typo, the statement just confused me.
I have Roarks so will give that a look...
If you have the relevant data It might be worth your while using the SKF online bearing selection application.
http://www.skf.com/portal/skf/home/products?maincatalogue=1&lang=en&newlink=1_0_2
Hi folks,
Thanks again for the input.
I am using the FEA program in Unigraphics to run an analysis of the spring. I hadnt set it up correctly in my previous post. I seem to be getting ok results now (but I would really rather use hand calculations). The analysis setup allows one to choose from...
Thank you all for the insightful responses.
Apologies for the delay in getting back to you
@TheTick (Mechanical);
Multiple leaves is a good idea but unfortunately wouldn’t be ideal in this cleanroom environment.
@asimpson (Mechanical);
No Clean room latches wouldn’t suffice but thank you...
Heres my problem.
I need to design a small spring type device that has minimal moving parts for a cleanroom environment.
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A sketch of the spring lever mechanism...
Thank you so much for all the helpful information.
Because space is very limited for picking and placing this metal ring, I would like to use something alond the lines of the principle of a Vacuum plate that is sometimes used in cnc machining operations, I would really like to avoid suction...
I need to attempt to design a vacuum pick and place tool.
I will need to pick and place an aluminium ring inner diameter about 160mm, outer diamerer about 190mm and height 15mm.
It would be possible to build in slots on the ring if this was to assist the tool in attaching to the ring when a...
