| Job Title |
Grinder Set-up Operator, Gear, Tool |
| Job Description |
Sets Up And Operates Precision Gear Grinding Machine With
Special Indexing Equipment To Grind Master And Precision Gears,
Usually On Custom Basis, Analyzing Specifications And Selecting
Tooling According To Knowledge Of Gear Grinding Procedures:
Studies Blueprints And Machining Instructions To Determine
Grinding Operations And To Plan Sequence Of Operations. Computes
Machine Indexing Ratios And Cam Dimensions For Specified Spacing
And Contour Of Gear Teeth, Using Shop Mathematics. Selects Index
Plate, Cams, Grinding Wheel, Feed Rates, Grinding Speed, And
Depth Of Cut, According To Computations, Gear Specifications,
And Knowledge Of Gear Design, Metal Properties, And Abrasives.
Positions And Secures Index Plate, Cams, And Grinding Wheel In
Machine, Using Wrenches And Measuring Devices. Sets Up Automatic
Dressing Device To Dress Wheel To Specified Profile. Moves
Controls To Set Synchronized Rotation Speeds And Feed Rates.
Positions And Secures Workpiece On Mandrel Between Centers Or In
Chuck, And Turns Handwheels To Position Workpiece And Wheel,
Verifying Positions With Thickness Gauges, Dial Indicators, And
Micrometers. Turns Valve Handle And Directs Flow Of Coolant
Against Wheel And Workpiece. Moves Controls To Index Workpiece
And Feed Wheel To Workpiece, Adjusting Depth Of Cut In Part By
Sight And Feel. Verifies Dimensions Of Ground Workpiece For
Conformance To Specifications, Using Gear Measuring Wires And
Involute Checker. May Grind Nonmetallic Materials. May Be
Required To Have Experience With Particular Type Of Gear,
Precision Level, Or Type Or Trade Name Of Machine.
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