I am wondering the effects of vibration from stamping presses on the machine accuracy.
Funny you should mention this....
I happen to have a e1550 Integrex mounted 40 feet from (3) 800 ton presses in a building that also has a couple dozen more presses of various tonage nearby as well. What are the effects and time frame? That's going to depend on several things and your time relativity of "short term" and "long term". So, let's break it down....
The immediate effects are likely to be surface finishes and tool chiping if your cutting hard materials. How bad this might be will depend on a few factors.
As for geometry, you didn't mention what VMC was installed but machine design for both the frame and foot pads will play a role. C-frame machines will be very violent on the finishes as opposed to a bridge or double column. 3-point machines isn't likely to get twisted up like a conventional machine pad set up.
You're not on a isolated foundation so your affects has an even bigger question mark because other things come into play like number of concrete pads the machine sits on, the base rock of the floor and the dirt all of that sits on. The machine sheet metal is not a real good indicator of vibrations. You need to feel the table and head assembly. If you can feel the press in them, you'll likely see an affect on the part.
Geometrically, the machine is not bolted down, no foundation to isolate, and it's near a press. The time frame of going "out of square" is hard to say but you'll want to monitor it for sure.
The press cycle will play a role as well. 150ton press isn't that big. So they tend to have short strokes and fast cycles. These little ones can actually wreak more havoc than the big ones just due to the cycling. Also, the type of die set makes a big difference. Such as.... a form die generally isn't nearly as violent as a cutoff/punch die.
Component/hardware/electrical wise, I wouldn't be overly concerned about them. You think about it, machines vibrate on their own from cutting. So these components are usually installed to handle quite a bit of Rockn-n-Rolln.
So, how frequent will you be fixing things? It will depend on all of the factors I mentioned above... time will soon tell......