| Job Title |
Drill-press Operator, Numerical Control |
| Job Description |
Sets Up And Operates Numerically Controlled Drill Press That
Automatically Performs Machining Operations Such As Drilling,
Reaming, Countersinking, Spot-facing, And Tapping Of Holes In
Metal Workpieces, According To Specifications, Setup
Instructions, And Knowledge Of Machining: Studies Blueprints Or
Setup Instructions To Determine Dimensional Specifications,
Setup Requirements, And Work Procedure. Installs Workpiece
Holders, Such As Blocks, Risers, And Clamps, On Indexing Table
Of Machine, Using Machinist Handtools. Lifts Workpiece Manually
Or With Hoist And Positions And Secures It On Machine Table Or
In Holding Fixture With Clamps And Bolts. Installs Cutting Tools
In Tool Magazine, Turret, Or Spindle Of Machine. Inserts
Programmed Tape Or Punched Card In Tape Or Card Reader Of
Control Unit. Actuates Machine That Automatically Positions
Indexing Table Containing Workpiece Under Spindle, Selects Tool,
And Machines Part According To Programmed Instructions. Stops
Machine After Trial Run And Inspects Machined Workpiece To
Ensure Conformance To Blueprint Specifications, Using Fixed
Gauges, Dial Indicators, Micrometers, And Calipers. Monitors
Machine Operation And Display Panel Of Control Unit For
Indications Of Malfunction. Notifies Supervisor If Machined
Workpiece Does Not Conform To Specifications Or If Machine
Malfunctions. May Make Manual Adjustments, Such As Aligning
Workpiece On Machine Table, Changing Cutting Tools, Or Setting
Cutting Speed, Feed Rates, And Depth Of Cut. May Occasionally
Operate Machine In Semiautomatic Mode By Setting Selector Switch
And Manually Dialing In Data According To Oral Or Written
Instructions To Machine Relatively Simple Pieces.
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