Denford LATHE ATC - drill holders

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Dangle_kt
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Denford LATHE ATC - drill holders

Post by Dangle_kt » Wed 18 Oct , 2017 14:35 pm

Hi,

Does anyone know the name or style of drill holders the denford lathe ATC takes? I have one, which I could copy, but I'd rather look to see if I can buy them. They sit on the face of the ATC, and fit into a round hole held in by a couple of grub screws.

Any help knowing what I am looking for would be great!

Thanks

TDIPower
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Re: Denford LATHE ATC - drill holders

Post by TDIPower » Wed 18 Oct , 2017 21:13 pm

I ended up making them for my starturn 5, bit of bar turned to the required OD, drilled to fit the various drills. filed a flat on one side for the grub screw to tighten on, My initial one I slit so when I tightened up the grub screws it would tighten on the bit. This didn't work.. the bits would move. The revised version I fitted grub screws to the holders.

There is a drawing of an ATC on here somewhere with all the dims.

Pete

Dangle_kt
Posts: 22
Joined: Mon 27 Mar , 2017 9:54 am
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Denford Startturn 8 with turret
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Fusion 360 CAD/CAM

Re: Denford LATHE ATC - drill holders

Post by Dangle_kt » Thu 19 Oct , 2017 22:17 pm

Thanks - thats a shame, but expected. Interesting that the slit wasn't effective. Did the second attempt put the grub screws straight onto the drill bit?

TDIPower
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Posts: 427
Joined: Tue 29 Apr , 2014 18:38 pm
Hardware/Software: Starturn 5 (sort of running, I will get this done!)
Lathe cam designer V1.11
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Microrouter Pro NS V5 (microstep)
VR2 and VR5
Boxford VMC260
Techsoft 2d Design tools V1 > V2
ProDesktop
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Deskproto

Re: Denford LATHE ATC - drill holders

Post by TDIPower » Sat 21 Oct , 2017 13:49 pm

The tool holders I made have 2 grub screws (I think it was 19 OD bar x 20mm) when screwed in they are just under the OD of the bar/holder for a 10mm drill. They screw directly against the side of the drill or boring bar. The grub screw in the ATC screws against the side of the tool holder. IT was a bit of 'fun' getting it right for the boring bar.

When I tired the slotted method even with the grub screws in the ATC as tight as I could get them the drill got pushed out the back f the holder!

Pete

Martin
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Re: Denford LATHE ATC - drill holders

Post by Martin » Sat 21 Oct , 2017 13:59 pm

The ones we fit now are turned to 19mm with the appopriate hole through the centre & 2 grub screw hole . The grub screws clamp on to the tool.

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