The Cage Twin window
grinder is a high production CNC machine with automatic loading
used for grinding the ball contact faces of a CVJoint cage.
Benefits
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Grinds two
windows simultaneously
Integrated automatic gantry loader for unattended operation
Features one tool for full range of cages (50 – 82mm diameter)
OEM quality engineered machine tool
Uses dressable grinding wheels that provide constant cutting
performance
Wheel life of up to 700 cages per set of two
Two powerful 7.5KW grinding spindles with speeds up to 45,000
rpm
Spindle overload protection
High pressure, temperature controlled, dual filtered, mineral
oil coolant
Productivity (at 100%)
92 per hour
Changeover
Cage with
similar diameter
Large cage to small cage
Wheel change **
10 - 15
minutes
20 - 25
minutes
8 - 10
minutes
Specification
The AES Cage Twin CVJoint window grinder is a 5-axis CNC machine
dedicated to the grinding of windows in a CVJ cage. It grinds
two windows simultaneously, has automatic loading and uses low
cost, dressable grinding wheels able to grind up to 700 cages
per wheel set **
The main elements of the machine are
arranged on a very strong, rigid, steel base, as follows
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Grinding Spindles
Two identical, 7.5KW chiller-cooled grinding spindles have
infinitely variable speed up to a maximum of 45,000 rpm. They
are mounted horizontally, on opposing slideways, to the left and
right of the workhead. Each spindle has controlled movement to
and from the workhead via its synchronized slideway system (X &
Y axes)
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Workhead
The workhead is mounted horizontally on a slideway that is 90*
and central to the two grinding spindles. The work spindle can
index to the three grind positions, oscillate for grinding and
rotate at 750 rpm for dressing (C-axis). The workhead slideway
gives control of window size and centerline dimensions (Z-axis)
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Dresser
A diamond-dressing ring surrounds the workholding fixture. When
required, grinding wheels are automatically dressed as they exit
the cage windows
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Workholding
A rotating cone-locating device is applied to the cage that
accommodates all sizes. A drawbar working through the
spindle provides failsafe clamping
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Automatic Gantry Loader
Full CNC controlled, servo motor driven gantry with twin
armed pneumatic grippers working in conjunction with a
magazine loader
Other features include
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Slideway tables
driven by the latest GE Fanuc brushless AC motors and large
diameter ballscrews
Table positions controlled by absolute encoder feedback through
fiber optic cables to a GE Fanuc 21iMB CNC
User friendly push button control panel and VDU
Simple program change by manual data entry input of parameter
values
Machine mounted electrical and electronic control cabinet
Auto load magazine holds 12 to 15 cages (depending on diameter),
giving 8 to 10 minutes of unattended operation and opportunity
for one operator to run two machines
Slideway lubrication by pressurised oil mist
Slideway protection by wiper seals and bellows
High-pressure (12 bar) temperature controlled (25ºC) mineral oil
coolant system, dual cleaned by magnetic separator and pressure
bag filter
Machine base is painted with two pack epoxy blue & enclosure
stove enamelled grey
Hook-on splash guard for easy access
Optional language CNC and parameter display
Dimensions
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Width 295cm (9’8"),
Length 350cm (11’6") including coolant system, Height 230cm
(7’6") including oil mist extractor
Weight 4500 Kg (9,900 lbs)
Services
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Electricity:
380/415/460/480 volts, 3 phase, 50/60 Hz, 60 amps per phase
Compressed air minimum pressure 5.5 bar (80psi), 1.0 m3 /min (35
ft³/min)
