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| Oh Blimey I bought a CNC Lathe !!!! |
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| awemawson:
Shortly after I had bought the chuck, I'd identified and sourced the correct adapter flange to fit it to the spindle nose, so in theory all that I have to do, is turn up and thread a draw tube adapter that takes the hydraulic draw tube at one end, and the chuck operating 'ring nut' at the other. It involves some careful length measurement and probably won't happen for a few days |
| awemawson:
Anyway it's progress, and I'm relieved to say that the adapter flange fits the spindle nose, which until today I hadn't actually seen :scratch: |
| vtsteam:
Nothing like going away from a puzzle for awhile in order to solve it. And mornings are the time for inspirations and solutions! :clap: :clap: :clap: :beer: |
| awemawson:
Thanks Steve. Just a little bit of progress today. I managed to withdraw the co-axial hydraulic cylinder chuck operating tube from the main spindle of the lathe so that I could measure it's diameter and pitch. That well known standard 74 mm x 1.5 mm :ddb: It unscrews from the co-axial cylinder, but to lock the spindle meant I had to have power on the machine and use it's hydraulic spindle brake. Upside was that the correct tubular spanner was in the bits that came with the machine. I also measured the chuck operating nut that the other end of the adaptor will screw into - another nice standard at 53 mm x 1.5 So now I know that I need an adaptor with a female 74.0 x 1.5 mm thread at one and, and a male 53 mm x 1.5 at the other, with an outer diameter of no more than 78 mm. with the biggest bore I can get away with. Just need to determine the exact length. Gets slightly complicated as the chuck needs a different length of movement to the collet chuck that I've removed, and the 'far' side of the co-axial hydraulic cylinder has a proximity switch checking the movement and determining if the chuck is locked on safely or not - so the length has to fall within fairly close limits. My thoughts at the moment are to err on the long side of the male thread and adjust to fit. |
| Kjelle:
Nothing like a standard, everyone should have his own! :hammer: Good luck Andrew, I've been following this from the beginning! Kjelle |
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