I need to increase production on a job here...
It is a second-op end-work operation ( cnc milling ) on a small turned piece and I need to chuck onto it off of the threaded end which is @ 4mm.
Currently I am using a 5/64 5c collet in a lever operated hardinge type indexer which works great but this only allows one part at a time to be machined and we do these things by the thousands and the cycle time is only a minute or so meaning this job currently requires full time labor input...
So I been thinking--why not use a soft collet and bore it out 3 places?( near to where the pins go )
--allows holding 3 parts per cycle now now instead of only one...
In fact, I could probably even use a brass collet and machine some extra slots in it, which would allow holding 6 parts, perhaps 9 even
--so long as every hole is centered on a collet slot AND they are all at the same radial distance from centerline I can't forsee any problems.
So I guess my question then would be does anybody else see a problem with doing this ?