I have the attached gizmo which I believe is a vacuum chuck, based on the grooves in the surface and the air fitting underneath.
It is not rigidly attached to the base - it's sprung at the three points on the underside with the red nuts (which, interestingly, but possibly not by chance, are 30 degrees apart from the pins sticking out from the base). The nuts limit the travel upwards and light springs push upwards at the three points.
The pieces at the top and left of the vacuum disk appear to be fences.
What would this be used for?
If I held something with it, any operations on the work piece would cause it to move, so I can't see how it would be used for machining.
Steve
Vacuum chuck
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Re: Vacuum chuck
It's a wafer chuck for handling semiconductor wafers, probably for use with a prober.
Re: Vacuum chuck
OK. That makes sense.
Steve
Steve
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Re: Vacuum chuck
We used vacuum fixture plates/chucks for machining thin graphite plates where I worked. Made to fit the blank in production work. Large ones for proto type work, machinist would tape off unused regions to get a good vacuum.