Collet Indexing Fixture - 2: Operation
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.
A 24 position indexing fixture can be manually moved to the index points by actuating the ratchet handle. The head of the fixture holds a 5C collet so the correct collet must be chosen to suit the work piece. The collet is held in the fixture with the collet thread nut (the knurled ring at the back of the fixture). Actuation of the collet (grip and release) is accomplished by pulling the handle out to lock and in to release.
The 24 position indexing fixture can be set to skip any on of the 24 indexing positions. In the rear of the fixture there is access to 24 set screws. By screwing these set screw a few turns to the right the position of that set screw is will be skipped by the indexer
Mounting of the indexing fixture can be accomplished one of two ways. The fixture can be mounted on the milling machine table so that the collet spindle is parallel to the table or it can be mounted so the so that the collet spindle is perpendicular to the table. Both the bottom of the fixture and the rear of the fixture are machined perpendicular for these purposes.

A table mounted center can be used to assist holding long parts while indexing. Use them just like you use a center on a lathe.
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label: Milling machine, collet indexer, indexing, setup, operation