Machining tool - dividing head?

[bb_max]

Anyone tell me the name/use for this tool? Appears to have multiple settings to index your work.
Brand/Mfgr?







Picked it up at an estate tag sale for $5
Now just to figure out what to do with it.

 

[Ign]

Looks like a 5C collet indexer

 

[Jim Johnstone]

Yep collet indexer, sometimes used as a spin fixture or "spindex".

 

[rsanter]

Spin index fixture.
Can in some ways work like an index head but the index head will be more precise and more versatile.
Still a good tool to have. That one looks like it's Chinese but again they can be very helpful for doing direct indexing, holding round stuff to drill and cross drill, holding round stuff for cutting a keyway...etc

Bob

 

[Jim Johnstone]

Spin index fixture.
Can in some ways work like an index head but the index head will be more precise and more versatile.
Still a good tool to have. That one looks like it's Chinese but again they can be very helpful for doing direct indexing, holding round stuff to drill and cross drill, holding round stuff for cutting a keyway...etc

Bob

Od grinding small parts as well.

 

[OccupantRJ]

One of the most used tools in my shop at work.

 

[DaveIRL]

it sorta resembles an index screw cutting but it is straight

 

[harleybear66]

its an indexing head or indexing jig. it is mounted on the table ways of a bridgeport type vertical milling machine but can be used on a horizontal miller or any other machine as needed. it holds a round part and it indexes the part so one can mill, drill, or somehow machine that part. it divides the part equally around. can be any division, four sided, six sided, eight, thirteen fourty seven, etc etc. kind of like cutting a bolthead on a round part

 

[harleybear66]

its been 35 years since getting out of trade school but those holes are used along with a manual to turn the part equally

 

[harleybear66]

you need to know how many complete rotations and partial rotations to turn and what number hole to stop at.

 

[Jim Johnstone]

you need to know how many complete rotations and partial rotations to turn and what number hole to stop at.

No you don't, not on this one. On this item, the bolt circle is fixed to the spindle, 1:1 ratio. You want to index 45 degree, then you turn it 45 degrees.

 

[OccupantRJ]

Adding to what Jim said, this type unit can be indexed in one degree increments. The various holes in the main casting are used to get numbers other than 10 degree increments.

 

[bb_max]

Thanks guys, I had kind of figured basically what it does or could do, just had never seen one. The first reply looks like he got it right.

Looks like it would be worth keeping around.