Live tool (3rd axis) for drilling bolt pattern on a CXA size QCTP !

fredybender

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Lucky enough to have the M19 spindle orientation on the lathe. Even though ther are no spindle brake, the lathe main spindle is held in place by the motor.

I do quite a few bolt patterns, and this would just help in the fact that I do not need to go on a second set-up do drill the bolt pattern (The small mill and its DRO, will see less work for shure!)

This is not a milling set-up, but it could be looked into eventually, but the placing of the head will need to be adressed, because of the turret.

A few pictures to show how I installed a Sherline hi-torque headstock, on my CXA size QCTP. The headstock comes with a 3/4-16 OD thread, which is coupled to a 36B female threaded chuck. I would have prefered a ER collet interface, but Sherline only supply ER16, which is too small for my applications. I did run the power of the motor almost to its limits, but this will only be for very short duty cycles.

Drilled a few holes with a 10mm drill in aluminum yesterday, and it works great!

P1040094_zpsd7f8431e.jpg
P1040093_zps63e6ee7e.jpg
 
This has got me into the engineering state of mind.......what are the specs on the
Sherline head ?



William
 
Live tooling! Nice idea, especially of you make a lot of bolted flanges or rings.
Machinists with manual machines (no M19) could do this too if they had a geared drive to the spindle and set it up to orient the spindle at the desired angular increment for the bolt circle. :thinking: I think :)).
 
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