| Job Title |
Grinder Set-up Operator, Jig |
| Job Description |
Sets Up And Operates Jig Grinding Machine To Locate And
Precision-grind Holes And Contours In Metal Objects, Such As
Tool, Die, And Machine Parts, On Custom Basis, Analyzing
Blueprints And Specifications And Selecting Tooling According To
Knowledge Of Jig Grinding Procedures: Studies Blueprint, Layout
On Workpiece, Or Written Or Oral Specifications To Visualize
Grinding To Be Done And Plans Sequence Of Operations. Computes
And Sketches Hole And Contour Dimensions And Locations In
Relation To Base Reference Points And Lines. Positions And
Secures Workpiece On Machine Table, And Turns Handwheels To Move
Table And Workpiece To Computed Position Under Spindle Center,
Verifying Each Step With Dial Indicator. Selects Grinding Wheel,
Grinding Speeds, And Feed Rates For Each Operation According To
Knowledge Of Metal Properties And Abrasives, And Mounts Wheel On
Spindle. Moves Controls And Reads Dials To Set Grinding Speed,
Feed Rate, Spindle Angle For Taper Grinding, Diameter Of
Planetary Action, And Limits Of Automatic Reciprocating Wheel
Feed. Dresses Wheel Manually Or With Preset Dressing Device.
Moves Controls To Feed Wheel Into Hole And Against Surface Of
Workpiece. Verifies Hole Locations And Dimensions For
Conformance To Specifications, Using Measuring Instruments, Such
As Dial Indicator, Gauge Blocks, And Telescoping Gauges. May Be
Required To Have Experience With Particular Material, Product,
Precision Level, Or With Machine Of Particular Type Or Trade
Name.
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