What might this Indexer be part of?

[Joseph Noci 1Participant @josephnoci1]

I have an Indexer but wonder what machine this belonged to

[Joseph Noci 1Participant @josephnoci1]

Hello to all.

I have this Indexer assembly, taking 5C collets, and with a neat dovetail base and leadscrew nut, but none of the rest of what this Indexer may once have been a part of. Does anyone recognize this item and have any idea what it was fitted to or what its task was?

It has a collar with 12 indexing slots into which the index pin slides.

These slots are numbered in a very strange manner – There is a grub screw in the collar which fixes the collar to the indexing hollow shaft. That grubscrew lines up with a slot in the indexing collar. Starting from that position, going clockwise, the numbers read – 6 -4&3 – 6 – 2 – 6&4 – 3 – 6 -4 -6 2&3 – 4&6 – grubscrew – and then start again.

The '4&3' numbers denote 2 numbers on one slot position, ie, 4&3 or 6&4, etc.

There is no number 1 or number 5…etc. Very strange…

It has a nice dovetail base with a fine thread brass/bronze leadscrew nut attached.

????

Joe

[JasonBModerator @jasonb]

Sounds like it is for two, three, four or six flute cutters

Edited By JasonB on 19/05/2017 21:12:35

[Anonymous]

Division by 2, 3, 4 or 6

Andrew

[Neil WyattModerator @neilwyatt]

They got there first, does it fit something like a Clarkson or Vertex tool and cutter grinder?

[Joseph Noci 1Participant @josephnoci1]

Thanks for the heads up fellows. With that info it was easy to dig on the net and I found a number of cutter grinders that have what looks like the identical indexor on – seems though that these all do only the tips of cutters, ie, drills, endmills and CSK bits. The collet holder does not slide in the housing, so no side of tools could be done on these machines from what I see – unless the entire holder/carriage could slide laterally, I suppose.

Thanks again for enlightening me – Obvious now, but that's the luxury of hindsight…

Joe

[John ReeseParticipant @johnreese12848]

Could it be from a radius grinder, one that puts the radius on the end or corner of a milling cutter? If so there would have been another dovetailed slide at right angles to this dovetail.

[BazyleParticipant @bazyle]

The sides would be done by a different wheel anyway so normal to have a specific holder for ends with a different style for sides.

[Author]

Posts