On 9/29/2016 9:52 PM, Kirk Wallace wrote: > On 09/29/2016 01:11 PM, Jim Craig wrote: > ... snip >> My machine uses NMTB30 tool holders so it would not be a direct fit. The >> concept is good. I might try to replicate the mechanism. However the >> wrist looks like it could be complicated to get that motion. >> >> Do you happen to have an exploded view drawing of the arm/wrist mechanism? > ... snip > > I have seen an exploded diagram of this arm assembly, but I don't recall > where at the moment. I'll keep this in mind and pass it along if I find > anything. Hmm, I think here: > http://www.wallacecompany.com/machine_shop//Shizuoka/atc_manual/bandit_changer-0064.png > http://www.wallacecompany.com/machine_shop//Shizuoka/atc_manual/bandit_changer-0065.png > http://www.wallacecompany.com/machine_shop//Shizuoka/atc_manual/bandit_changer-0066.png > http://www.wallacecompany.com/machine_shop//Shizuoka/atc_manual/ > > The arm slides in a vertical tube with a spiral slot that rotates the > arm to or from the tool box or to the spindle as the arm slides up and > down. The arm operates at fairly low pressure, so no one gets hurt if > body parts get in the way, which is nice. The wrist has a bevel gear > which is driven by a bevel gear on the vertical inner shaft which is > fixed. When the arm rotates, wrist rotates as well. > > I tend to think I would make a more robot like arm if I were making one > from scratch. The current arm has to remove the old tool from the > spindle and put it away before getting the new tool, then load it. Some > changers have the new tool ready before making a change. With LinuxCNC > on-board there is plenty of control resource available. > Kirk, I really appreciate it. That is some good information. I think you are right and I will use steppers to automate the motion. Lots of stuff to get me thinking and staying awake at night designing something that I don't need. LOL!
Thanks again, Jim ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
