Workpiece supporting assembly

An implement for machining a multiple datum axis workpiece, comprising:

• a body member having a workpiece channel;
• a plurality of arbors supported by the body member, each arbor having an axis, the workpiece supportable in the workpiece channel so that each of the workpiece datum axes is coincident with one of the arbor axes;
• means for rotating a selected one of the arbors so that the workpiece is rotated about a selected one of the workpiece axes.

A workpiece supporting assembly for securing an elbow during a machining process that is performed on the elbow by operation of a workpiece machining implement, the workpiece supporting assembly comprising:

• a body having an internal surface defining a channel, the internal surface sized to receive a medial portion of the elbow when the elbow is operably disposed in the channel;
• and
• a support that is selectively positionable to secure the elbow in the workpiece supporting assembly, the body pivotable to a first pivoted position, the body sized so that a first end of the elbow extends from the channel and beyond the body so the first end of the elbow is presentable to the workpiece machining implement for performing the machining process, the body pivotable to a second position and sized so that a second end of the elbow extends from the channel beyond the body so the second end of the elbow is presentable to the workpiece machining implement for performing the machining process.

A workpiece supporting assembly for rigidly supporting an elbow during a machining process that is performed on the elbow by a workpiece machining implement, the workpiece supporting assembly comprising:

• a body having an internal surface defining a channel, the internal surface sized to receive a medial portion of the elbow when the elbow is operably disposed in the channel;
• and
• a support adjustment bolt threadingly engaged with the body and selectively positionable to urge the medial portion of the elbow against the internal surface, the body sized so that each end of the elbow extends from the channel and beyond the body so that each end of the elbow is presentable to the workpiece machining implement for performing the machining process after securing the elbow and before removing the secured elbow from the workpiece supporting assembly.

A workpiece supporting assembly for securing an elbow during a machining process that is performed on the elbow by operation of a workpiece machining implement, the workpiece supporting assembly comprising:

• a body having an internal surface defining a channel, the internal surface sized to receive a medial portion of the elbow when the elbow is operably disposed in the channel;
• and
• a support that is selectively positionable to operably urge the medial portion of the elbow against the internal surface to thereby secure the elbow in the workpiece supporting assembly, the body selectively positionable to a first position where a datum axis of one end of the secured elbow is operably aligned with the workpiece machining implement, and the body alternatively positionable to a different second position where a datum axis of the other end of the secured elbow is operably aligned with the workpiece machining implement.

A workpiece supporting assembly for securing an elbow during machining of first and second ends of the elbow by a workpiece machining implement, comprising:

• a body having a channel therein for receiving the elbow, whereby the first and second ends of the elbow extend from the channel;
• a support that engages the body and secures the elbow in the channel, the body positionable between a first position for machining the first end of the elbow by the workpiece machining implement and a second position for machining the second end of the elbow by the workpiece machining implement.