Re: [Emc-users] West Coast Mills (USA)
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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] West Coast Mills (USA)
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 Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] West Coast Mills (USA)
On 9/29/2016 2:37 PM, Kirk Wallace wrote: > On 09/29/2016 12:00 PM, Jim Craig wrote: >> On 9/29/2016 1:02 PM, Kirk Wallace wrote: >>> Just in case someone might be interested: >>> http://www.ebay.com/itm/121734977870 >>> >>> My slightly smaller ST-N as reference: >>> http://www.wallacecompany.com/machine_shop/Shizuoka/ >>> >> That tool changer setup looks perfect for my machine. Do you have a >> video of it in action? Any details on the tool changer arm? > http://www.wallacecompany.com/machine_shop/Shizuoka/tool_changer_video.html > > The Shizuoka uses NMTB40 tool holders. If your machine uses NMTB40 the > changer might work, otherwise the claw and tool pockets will be a > problem (NMTB = single flange with boss on end of taper, CAT = dual > flange, no boss). The arm is rotated by a pneumatic cylinder which makes > the arm raise and lower, as well as rotate the wrist. The tool comes out > of the spindle with the tool pointing down. The wrist turns the tool > holder over, tool up, as the arm moves towards the carousel. The changer > functions are controlled by relay contacts so are pretty easy to hook up. > > 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? Thanks again, Jim -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] West Coast Mills (USA)
On 09/29/2016 12:00 PM, Jim Craig wrote: > On 9/29/2016 1:02 PM, Kirk Wallace wrote: >> Just in case someone might be interested: >> http://www.ebay.com/itm/121734977870 >> >> My slightly smaller ST-N as reference: >> http://www.wallacecompany.com/machine_shop/Shizuoka/ >> > That tool changer setup looks perfect for my machine. Do you have a > video of it in action? Any details on the tool changer arm? http://www.wallacecompany.com/machine_shop/Shizuoka/tool_changer_video.html The Shizuoka uses NMTB40 tool holders. If your machine uses NMTB40 the changer might work, otherwise the claw and tool pockets will be a problem (NMTB = single flange with boss on end of taper, CAT = dual flange, no boss). The arm is rotated by a pneumatic cylinder which makes the arm raise and lower, as well as rotate the wrist. The tool comes out of the spindle with the tool pointing down. The wrist turns the tool holder over, tool up, as the arm moves towards the carousel. The changer functions are controlled by relay contacts so are pretty easy to hook up. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] West Coast Mills (USA)
On 9/29/2016 1:02 PM, Kirk Wallace wrote: > Just in case someone might be interested: > http://www.ebay.com/itm/121734977870 > > My slightly smaller ST-N as reference: > http://www.wallacecompany.com/machine_shop/Shizuoka/ > That tool changer setup looks perfect for my machine. Do you have a video of it in action? Any details on the tool changer arm? Thanks, Jim -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
