In this week's fixture Friday, we're highlighting a new workholding
method - pallatized workholding but rotary style.
So hopefully
if you're subscribed, you see that we have highlighted
a lot of fixtures using our power systems, both the Pro and Mini.
But we've recently added the ability for pallets to be held
with our RotoVise workholding system.
So first, let me give you a quick overview of that.
The rotovise is a simple to use bolt on work holding system
that harnesses the typically unused extra Z volume of the machine
to not only achieve high density work holding, but also to access
multiple faces of a part which radically reduces setups.
Now the rotovise allows you to hold four parts per cycle
and access at least three of the faces of the part.
So this is a 12 time production boost compared to a standard vise
four parts times three faces equals 12 times
more work in only one setup.
So for now, let's talk about the pallets.
Now the rotovise device pallets are made from 7075 T6 aluminum and have a size
of seven and three quarter inches by three inches by inch and a quarter tall.
Now they have a dual dovetail design
with the front dovetail being self centering and the rear dovetail
pulling the pallet down flat with rock solid rigidity
using only 15 foot pounds of torque on the vise handle.
Now this coupled with an alignment pin in the pallet is
what gets us our sub three tenths repeatability.
Now let's take a look at the part
the part where machining is made from 4140 chrome all steel in measures
roughly three quarter inch tall by 875 thick by three inches long
and is actually the serrated jaw carrier for the rotovise
Now this part gets machined on all six sides, four faces though.
So if we are running it in a standard six inch vise, it would mean that
we would have four set ups, one for each face.
But since we're holding two parts
per pallet and four pallets per cycle,
we're holding eight parts with access
to 24 faces in one setup.
I got to calm down a bit.
I'm just excited for our own production ya know?
Now, taking a look at the pallet, we're holding two parts
at a time on the center line to maintain symmetry in the setup.
We're using three rocker style clamps per part
in the three quarter inch with for maximum rigidity.
So the A0 position faces the part drills
counterbore slot
profiles it and then chamfers the top side.
Then we rotate 90 degrees and drill through counter
bore slot and chamfer all the features.
Then we rotate back 180 degrees and again counter
bore cut the slot and chamfer again.
Now of course every time we pull up a tool
we're only going to change it one time, meaning we're going to face
rotate face rotate and so on and then change to the next tool.
So this particular setup only requires
six tools and for that reason we have
six tool changes per cycle,
whereas the one part in one vice approach
we would have required 48 tool changes.
Now that's an 88% reduction
in tool change time alone.
Now all save up to for another Fixture Friday.
But if you want to learn more,
visit our website where you can learn more and buy everything online.
24 / 7 at piersonworkholding.com So until next time, go innovate your production.