Grizzly G8689, Руководство пользователя

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G8689 Mini Mill (Mfg. 8/06+)
-9-
The following is a list of common definitions, terms and phrases used throughout this manual as they relate
to this mill and metalworking in general. Become familiar with these terms for assembling, adjusting or
operating this machine. Your safety is
VERY important to us at Grizzly!
Arbor: A machine shaft that supports a cutting
tool.
Backlash: Wear in a screw or gear mechanism
that may result in slippage, vibration and loss
of tolerance.
Collet: A conical shaped split-sleeve bushing
which holds round or rectangular tool and/or
workpieces by their outside diameter.
Cross Feed: The movement of the table toward
or away from the column.
Cross Slide: A fixture attached to the lathe car-
riage that holds the compound rest and can be
moved in and out.
Cutting Speed: The distance a point on a cutter
moves in one minute, expressed in meters or
feet per minute.
Dial Indicator: An instrument used in setup
and inspection work that shows on a dial the
amount of error in size or alignment of a part.
Dividing Head: A milling machine accessory
used to divide a circular object into a number
of equal parts.
Down Milling or Climb Milling: Feeding the
workpiece in the same direction as the cutter
rotation.
End Mill: A cutter with cutting surfaces on both
its circumference and end.
Facing: cutting across the face of a workpiece,
usually to machine a flat surface.
Feed: The movement of a cutting tool into a
workpiece.
Fixture: A device that securely holds the
workpiece in place during cutting operation as
opposed to a
Jig which is used to hold and
guide a workpiece through an operation.
Gib: A tapered wedge located along a sliding
member to take up wear or to ensure a proper
fit.
Headstock: The major component that houses
the spindle and motor drive system to turn the
workpiece.
Leadscrew: The screws that move the table in
longitudinal, transverse, or vertical directions.
Spindle: The revolving shaft that holds and
drives the workpiece or cutting tool.
Turret: The part of a mill which rotates on the
column and can be set to a specific degree.
Ways: The precision machined and flat tracks on
a lathe or mill on which the carriage, tailstock
and the mill table and knee slide.
Glossary Of Terms