Gear-cutting-machine Set-up Operator, Tool
Overall rating: (N/A)
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Sets up and operates variety of gear-cutting machines, such as
gear shapers, hobs, and generators to machine spline, rack, or
gear teeth on metal blanks, analyzing specifications according
to knowledge of gear designs, shop mathematics, and gear
machining procedures: Studies blueprint to visualize machining
required, and plans sequence of operations.
Selects machnie and
method of holding workpiece.
Computes machine settings from gear
specificatinos. Positions and secures workpiece to cutting anlge
on arbor, in chuck or other holding device, using wrenches.
Selects, positions, and secures cutters in toolhead, in spindle,
or on arbor.
Sets feed rates and rotation speeds of cutters and
workpiece in relation to each other by selecting and mounting
gears, cams, or templates, or by mvoing levers.
Moves controls
to set cutting speeds and depth of stroke and cut for
reciprocating cutters, and to position tool and workpiece in
relation to each other.
May select and mount guides to imprat
twisting motion to spindle for cutting helical gears.
Starts
machine, turns valve handle to start flow of coolant against
cutter and workpiece. Verifies conformance of machined gear to
specifications, using gear measuring wires, involute checker,
master gears, optical comparator (shadowgraph), and other
special gear inspection equipment. May operate broaching machine
to broach internal splines or gears [Broaching-Machine Set-Up
Operator (machine shop) 605.382-010].
May work on nonmetallic
mtaerials.
May be required to have experience with particular
gear type, material, or size, type, or trade name of machine.
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Gear-Cutting-Machine Set-Up Operator, Tool
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