CAMPBELL MODEL AS48-60-18D 8-AXIS PRECISION UNIVERSAL

Worktable
1.Worktable will be 48" precision table with 8 tee-slots for "full circl
e"
rotational grinding
2.Above unit will provide maximum 60" swing clearance
3.Lubrication access and coolant shielding will be provided
4.Rotational mode will provide variable speed form 0 to 40 RPM
Grinding Spindles
1.Reversible precision pope spindles will be interchangeable for ease of
maintenance
2.The spindle will be precision balanced, and arranged for mounting heav
y-duty
wheel dresser
3.Grinding wheel spindle run-out and caming shall not exceed .002"T.I.R.
with
wheel in place either perpendicular to the base or set off at any angl
e
4.Spindle design will enable the use of 12" diameter grinding wheels, wi
th wheel
life to 5" diameter
5.Drive motors are 10 HP, 1755 RPM, optional variable speed was provided
Grinding Wheel Dresser
1.Latest diamond roll dresser is of rigid design and provides error proo
f infeed
control through precision servo motors
2.Precise infeed adjustment variable from .0001 to .005"/dress with "pau
se"
cycle between feed pulses for optimum dressing performance
3.Units will facilitate 1-1/4" stack of 4" diameter diamond rolls
4.Dresser will incorporate wheel guard to enclose 180 deg.of grinding wh
eel
for operator safety
5.Positive hydraulic drive for diamond roll spindle
Horizontal Slides
1.Electronic servo motor provides positioning controlJog direction is r
eversible
2.Traverse rate is 40" per minute
3.Horizontal slid movement is 40"(38" from table center to outboard posi
tion)
and shall be parrallel to table surface within .002" across table radi
us
4.Preloaded ball screw will be used for accuracy and stiffness
Vertical Slides
1.The vertical slide movement shall be 21" and shall not deviate from a
straight line
perpendicular to the worktable by more than .001" at the side and .002
" at the front
2.Vertical position controlled by electronic servo motor
3.Preloaded ball actuator screws will be used for accuracy and stiffness
4.All slide way shall be provide with adjustable gibs, dowelled in locat
ion
individually lubricated and adjusted by set screw.
Cont.on

Angle Slides
1.Grinding spindle will be mounted to angle slide
2.Angle slide will have variable feed capability in pulse increments of
.0001" to 020"
per minute, by electrnic motor
3.Automatic sequencing from coarse to fine feed by controller
4.Traverse rate will be 10 IPM
5.Slide will swivel + or 90 degrees from vertical
6.Total slide travel will be 6"
7.Attached dresser will dress wheel during the grind cycle to eliminate
dressing time
8.Automatic compensation will maintain correct zero position whenever d
ress occurs
Control System (Angle Slide)
1.Modern programmable Fanuc CNC and electronic motor drives will provid
e
compact and trouble-free solid state control system
2.System will provide precise zero stop function and retract to start p
osition
Auxiliary positions can be programmed to change feed rate, initiate d
ress, or
whatever other control functions might be desired
3.Indicating lights will provide operator reference as to cycle positio
n
4.Visual displays will show wheel position form "zero", as well as, hor
izontal and
vertical slide locations
Coolant
1.The coolant system shall have a capacity of 150 gallons of coolant an
d be equipped
with a pump having an output capacity of 20 gallons per minute at 30
P.S.I.
Lubrication
All sliding way surfaces will be automatically lubricated with force fe
ed lubricator
Lubrication pump will be interlocked with grinding spindle to function
when needed
Grinding spindle is permanently lubricated as are all other electric mo
tors
Feed screws are lubricated according to manufacturers specifications
Hydraulic Unit
All hydraulic units will comply with J.I.C. and N.M.T.B.A. standards wi
th controls
integrated as required
Electrical
Machine input will be 480 volts, 60 cycles, 3 phase, heavy duty oil tig
ht safety
switches will be provided on all moving slides to prevent overtravel or
to limit
required movements
Painting
Will be on color, type and specification of customer
Floor Space
Right to Left 12-1/2'
Front to Back 10'
Height 9'
Weight 35,000 LBS
Cont.on Page 3
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