28-12-2012, 05:06 PM
Milling Machines
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Horizontal Milling Machines
Manufacturing-type
Cutter height is controlled by vertical movement of headstock
Special-type
Designed for specific milling operations
Knee-and-column-type
Relationship between cutter height and work controlled by vertical movement of table
Universal Horizontal Milling Machines
Difference from plain horizontal machine is addition of table swivel housing
Located between table and saddle
Permits table to be swiveled 45º in either direction in a horizontal plane
Used for milling of helical grooves in twist drills, milling cutters, and gears
Milling Machine Parts
Feed dial
Used to regulate table feeds
Spindle
Provides drive for attachments, arbors, cutters
Overarm
Provides for correct alignment and support of arbor and various attachments
Can be adjusted and locked in various positions