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Milling – workholding – non-rotating chucks

A chuck as used on a lathe can be a useful way of holding a workpiece when it is necessary to machine the end of it.

A four jaw chuck is useful for square and rectangular workpieces. A three jaw chuck is useful for round workpieces

 

Non-rotating three jaw chuck

This is the three jaw chuck mounted on a plate as used on the rotary table.

It is useful where there is more than one part to be machined since all parts after the first will be aligned automatically.

 

Non-rotating four jaw chuck

This device was found to be too low down so that doing up the jaws was too difficult.

This version was much easier to us.

This larger size is even more useful but due to the weight it needed handles to be able to lift is easily.

 

Aligning the four jaw chuck fixture