On 2008-02-13, Joseph Gwinn wrote:
In article ,
"DoN. Nichols" wrote:
On 2008-02-13, Joseph Gwinn wrote:
[ ... ]
In mine, the T-stud cam hits the raised pedestal upon which the collar
rests. This pedestal is an integral part of the toolpost body.
In which case, it is an intentional interference to prevent
rotating the cam too far and perhaps making it more difficult to slide
the tool holder into place.
I don't think the collar is used for this, as the raised pedestal
already prevents over-rotation.
O.K. I was getting confused as to which was which in your
toolpost.
I may make the top collar a bit smaller, to prevent interference with
wrenches.
With the wrenches, or with the locking flanges on the cam shaft?
The wrench only. The wrench is L-shaped, and has a fully formed hex
socket at one end.
With a bend of about 45 degrees so it clears the nut, or does
yours have a full right-angle bend? Mine is about 45 degrees.
Note that this is one of the advantages to the Aloris style
toolposts. You don't have a detachable (and losable) wrench, but
rather a rotating collar around the raised part which the nut tightens
onto to lock the toolpost into place. (Of course, if you have a hinged
shield to keep the chips out of the operator's eyes, as on the
Compact-5/CNC, the removable wrench means that the shield does not need
to be as large.)
The Clausing does not have such a shield. But I may add one.
More common on a CNC machine, where you push a button and stand
back until the job is done. Normally the tool changing is handled by
the electric turret, but you can run programs with the QC toolpost and
have to change tools in mid-program. The spindle can be (and should be)
programmed to stop while you do this.
A manual machine, like our Clausings, needs more frequent
access. Though there are often guards which curve over the chuck --
nice to keep a well-lubed chuck from painting a vertical oil stripe on
your shirt. :-)
Enjoy,
DoN.
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