A while back I had to make a couple 5000 piece runs.I drilled the end of the arbor press ram and tapped the side for a setscrew so the punch rod could be secured. The material was then cut into long strips and fed thru the slot in the die block while the smaller diameter was punched. After all the strips were thru, the rod for the large diameter was installed and the block repositioned and the strips fed thru again.
For the second operation the punch rod must have a smaller diameter right at the end to act as an indexer to align for the second operation. The finished washers fall out the bottom; I drilled a hole in the table and let them fall into a box. |