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Press Brake Attachment
I recently purchased a 45-ton air-over-hydraulic press, so I'm casting about for what sort of tooling will increase the usefulness of this new machine. One of the most obvious is a press brake attachment.
Note: If you don't want to design and build a press brake attachment, you can buy a press brake attachment kit.
Here is a design study I did in Rhino. My press will accomodate a 15" by 31.5" opening. This brake is designed for 24" punches and dies.
This is a work in progress, and will probably change significantly before it gets built. There are some open questions. For example, I'm showing 1" shafting for the linear bearing system. I thinking it would be better to go up to 1 1/4" or even more. I'm showing a 5/8" deep tooling slot, but apparently 13/16" is the industry standard for press brake tooling holders.
I'm planning some pretty basic specifications:
24" wide tooling held via set screws in a standard 1/2" by 13/16" deep slot
Back gauge features:
- Raise and lower the gage bar
- Slide back to the right bending depth
- Fingers on the gage bar are adjustable
As usual, I have been canvasing the various online resources to get ideas.
Below is a collection of photos and links that are serving as inspiration.
Talented German amateur's brake with rubber die:
UHMW die prevents marring of work...
Note the massive guide system on the sides...
American Press Brake Punches & Dies: Great information on the basic punches and dies for a press brake. Note the standard 1/2" by 5/8" tab that is used. I will build that into my design so I can run standard tooling that I find out on eBay and other places.
Tooling Notes and Operating Tips: A nice thread on WeldingWeb.com on press brakes.
4-way Die and Holder Dimensions: A 4-way die would be really slick.
ShopOutfitters: The nicest ready made press brake attachment I have found.
Midwest Press Brake: More good reference data from a commercial supplier
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