On Sat, Jun 9, 2012, at 09:32 AM, Igor Chudov wrote:
> How does it work if one needs to punch a hole at the far > end of the table? Does the head extend/telescope forward? No, the punching point is fixed at the end of the head. The round "turret" that you see under the head (and a matching one below the table) carry the punches and dies. The turrets rotate to put the selected punch/die combination under the ram at the front of the head, then the ram drives the punch thru the sheet and into the die. The control moves the sheet - the maximum sheet size is roughly half the table size, so that you can move the sheet to put any point under the punch. The yellow cross-arm moves toward and away from the head, and a pair of sheet clamps move left and right along the arm. The table doesn't move - the sheet itself slides on the table, (actually, it rolls on balls sticking out of the table, just barely visible in the photo). The overall sheet size is limited by the throat depth from the centerline of the punch to the machine frame. This video shows how they work: http://www.youtube.com/watch?v=sf2ltFHuGWo Unfortunately there is no sheet (it is a machinery dealer doing a demo). But you can see the sheet clamps moving in X, the cross-arm moving in Y, and the turret turns a couple of times to do tool changes. On that particular machine, part of the table does move, but in Y only. The state of the art has changed a bit since that machine was made. I ran across this while trying to find the above video: http://www.youtube.com/watch?v=VPRtpd4tNTc -- John Kasunich [email protected] ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
