| Job Title |
Screw-machine Set-up Operator, Multiple Spindle |
| Job Description |
Sets Up And Operates One Or More Multiple-spindle Lathe-type
Screw Machines Equipped With Automatic Indexing And Feeding
Mechanisms To Perform Turning, Boring, Threading, And Facing
Operations On Metal Bar Stock On Custom Basis, Analyzing
Specifications And Deciding On Tooling According To Knowledge Of
Screw-machine Operations: Studies Blueprint, Visualizes
Machining To Be Done, Dimensions Of Parts And Permissible
Tolerances, And Plans Sequence Of Operations. Visualizes
Movements Of Machine Parts, Workpieces, And Tools In Each
Operation In Relation To Others, And Decides On Station And
Timing Of Each Operation To Assure Efficient Use Of Tools And
Time. Selects Cutting Speeds, Feed Rates, Depth Of Cuts, And
Cutting Tools To Be Used On Basis Of Experience And Knowledge Of
Metal Properties And Shop Mathematics. Installs Collets,
Bushings, And Stock Pushers In Stock-feeding Mechanism, Using
Wrenches And Screwdrivers. Installs And Adjusts Cams, Gears, And
Stops To Control Stock And Tool Movements At Each Station.
Positions And Secures Tools In Tool Holders, Verifying Positions
With Gauges And Other Measuring Instruments. Moves Controls To
Set Cutting Speeds And Feed Rates. Cranks Machine Through Cycle,
Stopping Machine And Adjusting Tool Positions And Machine
Controls To Allow For Such Factors As Timing, Clearance Between
Moving Parts, And Chip Removal. Starts Machine, Observes
Operation, And Verifies Conformance To Specifications Of
First-run And Sample Workpieces, Using Such Instruments As Plug
And Ring Gauges, Calipers, And Micrometers. Replaces Worn Tools.
May Operate Bench Grinder Or Cutter-grinding Machine To Sharpen
Tools. May Machine Plastics Or Other Nonmetallic Materials. May
Set Up And Operate Single-spindle Screw Machine. May Be Required
To Have Experience With Particular Material Or Product Or
Machine Of Particular Size, Type, Or Trade Name. May Set Up
Machines For Other Workers.
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