Jig Boring Machine Set Up Operator: A description for the jig boring machine set up operator job

Machine Trades Jobs » Metal Machining Jobs » Boring Jobs » Jig Boring Machine Set Up Operator

Jig Boring Machine Set Up Operator – Jig-borer Sets up and operates jig borer to perform machining operations, for example boring, drilling, reaming, and counterboring holes in metal workpieces, for example jigs, fixtures, gauges, and dies, according to specifications, applying knowledge of metal properties, tooling, and precision machining: Studies machining instructions, for example job order, blueprint, process sheet, or layout on workpiece to determine dimensional and finish specifications, sequence of operation, setup, and tooling requirements. Lifts workpiece either manually or with hoist onto machine table. Positions and secures workpiece on table with bolts, clamps, shims, or other holding devices, using machinist’s handtools. Verifies parallelism of reference lines on workpiece to axis of table motion, using dial indicator mounted in spindle. Establishes zero reference point on workpiece, for example at intersection of two edges or over hole location. Turns handwheel to adjust machine table to align spindle over point, using dial indicator. Sets table-position dial at zero, measures all machining locations from this zero point. Selects and sets cutting speeds, feed rates, depth of cut, and cutting tool according to machining instructions or knowledge of metal properties. Installs tool in spindle. Turns handwheels to lower tool to workpiece and engages automatic feed. Turns valve and directs flow of coolant or cutting oil over cutting area. Verifies location and dimensions of holes, using measuring instruments, for example dial indicator, gauge blocks, telescoping gauge and internal micrometer. Works to tolerances as close as plus or minus 0.0001 inch. May also work only from blueprint. May also lay out reference lines and machining locations on workpiece, according to blueprint, using layout tools, for example rule, divider, and scriber, applying knowledge of shop mathematics and layout techniques. May also fasten workpiece in holding fixture mounted on machine table or clamp jig or template in position on workpiece. May also operate machine manually throughout first piece operation to verify accuracy of setup. May also sharpen tools on bench grinder.

Job industry: machine shop

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