Re: [CAD_CAM_EDM_DRO] Home Shop Machinist Drawing Files

Carl Boudreau (pressenter) wrote:

>Thanks Jon,
>
>Can someone point me to pictures of the CNC punch head types out there?
>What are the fastest punch head types?
>
>

The big machines (Houdaille, now changed to Strippit, their brand name,
and Amada) are fully enclosed, so the pictures are no use in understanding
how they work. Basically, they have a pair of synchronized turrets.
The top
one holds punches, the lower one holds dies. These can be rotated by G-code
command (a C word, I suspect). So, you can have 24 or more sets of dies,
anything you can fit in a 2", 3" or larger circle, depending on the machine.
They can not only do cutouts, they can also do louvers, knock-outs, and
slit material with a pair of stepped rollers that make a scissors action.

The Strippit and Amada punches can do at least 10 to 20 punch strokes
per second if the XY move is not very far. Some people use them to make
sections with air vent grilles with hundreds of holes.

If you do a web search, you will have no difficulty finding pictures of big
yellow boxes, but I haven't seen any pictures of the insides on the web.

Jon