Campbell 700/8086-36S 2000

Grinding Head:

Grinding head will contain two precision spindles on power
driven turret. Spindles will be 180 degrees opposed and will allow OD
ad ID surface to be ground concentrically with one part set up
OD spindle will be motorized 10 HP, 1700-3600 RPM interchangeable
motorized style for use with 14" to 8" diameter wheels. ID spindle will
be motorized 5 HP and is designed for 3" wheels and will provide up to
12,000 RPM at the spindle. RPM will vary so cutting speed remains constant as wheel is dressed to minimum diameter.

Dresser:

diamond disc wafer for profile dressing. Also, optional single
point diamond articulating arm style CNC Control mounted on rigid stand
adjacent to table. The horizontal slide automatically travels to the
dresser, forms the wheel, compensates and returns to part. Wheel contours
can be configured with CNC control.
     

 Base:

 Fabricated steel weldment with integral coolant through and drain

provisions. Hold down bolt holes and leveling screws accurately located

for anchoring to shop floor. No special foundation required. All

weldments thoroughly stress-relieved to eliminate aging and creep.
Cross braced and reinforced with polymer concrete (granitan) for stiffness
and dampening of induced or transient vibration. Interface surfaces
milled to accuracy of .001" per foot or less scraping provided as
necessary for improved accuracy. All welds chipped and ground and free of
splatter. Exposed corners and joints chamfered and ground

Cross Slides:

Slide actuation through an anti-backlash, precision ball
screw by means of a AC servomotor and direct drive and safety switches
at the end of travel. Rapid traverse rate is 40"/minute. Feed rate
variable from .05 IPM to 40.0 IPM. 96" total horizontal range of
movement (traverse stroke) on cross rail. Dimension to the right of the
table centerline in outboard positioning is 76".

Vertical slide:

Enclosed square design with anti-friction bearings on
hardened ways. Variable power feed reciprocation by AC servo drive.
Length of reciprocation adjustable from 1" to 48". 19" minimum height
under rail. Reciprocation rate variable from 0 to 40 IPM. Tapers,
including + or - 45-degree angles, can accurately generated by the
GE/FANUC CNC Controller.

Size Control:

Fanuc 15 series CNC system with man-machine control
and electronic AC servo motor drives will provide compact and trouble
free solid-state control system. System will provide precise zero
stop function and retract to start position. Auxiliary positions can be
programmed to change feed rate. Initiate dress, or whatever other control
functions might be desired. Operator can easily adjust to tapers
if necessary. Custom CRT screen menus will provide operator references
as to cycle position. Visual CRT displays will show wheel position from
"zero" as well as, horizontal and vertical slide location. Control
systems will be operator friendly or can be fully programmed by CNC
parts programmer. Error messages for ease of maintenance included.

Coolant System:

Encyclon cyclonic type coolant filter for aerospace
materials, 5 micron filtration 300 gallon tank, 60 GPM flow rate,
60 PSI capacity, a 1.5 HP, 18,600 BTU refrigeration unit is mounted

Controls:

Machine operating controls are contained in conveniently
located oil tight panel and will permit manual and/r automatic
operation of all machine functions. Visual indications of cycles
location provided via lights or illuminated pushbuttons.
Hand pendant with jog functions and .0001 pulse movements provides
convenient set-up and inspection for operator.

Lubrication:

Automatic motor driven continuous feed to vertical slide and
cross slide via Lincoln. lubrication system. Table spindle bearing
is packed and require minimum maintenance.
Electric motors and gearboxes are subject to periodic lubrication.

Way Covers:

The machine will be protected with oil resistant,
according to type way covers throughout. Other protective devices will be
used as necessary to insure proper protection and accurate service life.

Electrical:

Machine input to be 480V, 60 cycle, 3 phase.
All electrical equipment and circuits will conform to J.I.C., N.M.T.B.A.
electrics.