Concept One Robot Assembly: Remanufacturing
Process
|
|
Disassembly/Inspection
Our remanufacturing process starts with complete
disassembly and ultrasonic cleaning. Followed by detailed
inspection of all shafts, hubs and other reusable portions of the assembly.
Any problems are identified at this point in the process,
corrective actions are taken to restore the robot to “as new” or “better than
new” condition.
Reassembly
During reassembly, over 50 critical components
are replaced with new parts that either meet or in many cases exceed OEM
specifications. This includes all gears, the leadscrew, all bearings, stepper
motors, o-rings and seals. We use Krytox® 143AD exclusively to
lubricate all components.
Testing
The robot is then tested utilizing a test
fixture designed to simulate the C1 operating environment. Using
original “C” drives and a 90 volt DC power for systems that require this
configuration. We also have the flexibility to test using the newer
OEM750 / Zeta motor setup, operating at 75 volts DC, if your system has been
retrofitted to FCO #: C1SF017.
All units are serialized and test results are
documented for future tracking, including;
- Helium
leak testing (Veeco MS-40 DRY)
- Cycle
testing, minimum of 2000 wafers simulating C1 operation
- Parametric
testing of stepper motor performance
CIP (continuous improvement) upgrades also enhance reliability:
- Shielded
bearings are used in critical areas to reduce contamination and extend
their service life
- The
rotation reduction drive spindle is redesigned to ensure correct thrust
preload on the spindle bearings to avoid premature wear.
Components replaced:
- 10
Gears (rotation, extension, rotation reduction set, extension reduction
set, anti-backlash and motor spur gear)
- Lift
leadscrew
- Stepper
motors (extension, rotation, and lift motors)
- 16
Springs, spring and crescent washers
- 12
Bearings (rotation drive, rotation main shaft, lift main housing,
extension drive, lift drive group)
- 2
O-Rings
- Extension
and rotation lip seals
- Optic
sensor assemblies for lift, rotate and extension