Manual, Robotic Electric Tool Changer, QC‑18
Document #9620‑20‑B‑18 Electric Tool Changer‑06
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 • Tel: 919.772.0115 • Fax: 919.772.8259 •
B-18
US Patent No.: 8,132,816 B2
4. Maintenance
WARNING:
Do not perform maintenance or repair(s) on the Tool Changer or modules unless
the Tool is safely supported or placed in the tool stand, all energized circuits (for example:
electrical, air, water, etc.) are turned off, pressurized connections are purged and power
is discharged from circuits in accordance with the customer specific safety practices and
policies. Injury or equipment damage can occur with the Tool not placed and energized
circuits on. Place the Tool in the tool stand, turn off and discharge all energized circuits,
purge all pressurized connections, and verify all circuits are de-energized before performing
maintenance or repair(s) on the Tool Changer or modules.
NOTICE:
The cleanliness of the work environment strongly influences the trouble free operation of
the Tool Changer. The dirtier the environment, the greater the need for protection against debris.
Protection of the entire EOAT, the Master, the Tool and all of the modules may be necessary. Protective
measures include the following:
1) Placement of tool stands away from debris generators.
2) Covers incorporated into the tool stands.
3) Guards, deflectors, air curtains, and similar devices built into the EOAT and the tool stand.
4.1 Preventive Maintenance
The Tool Changer and optional modules are designed to provide a long life with regular maintenance. A
visual inspection and preventive maintenance schedule is provided in the following table depending upon
the application. Detailed assembly drawings are provided in
for detailed preventive maintenance steps for all utility modules).
Table 4.1—Maintenance
Application(s)
Tool Change Frequency Inspection Schedule
General Usage Material Handling Docking Station
> 1 per minute
Weekly
< 1 per minute
Monthly
Welding/Servo/Deburring, Foundry Operations (Dirty
Environments)
All
Weekly
Checklist
Mounting Fasteners
г
Inspect fasteners for proper torque, interferences, and wear. Tighten and correct as required.
Ball Bearings/Alignment Pins/Bushings/Bearing Race
г
Inspect for wear and proper lubrication. MobilGrease XHP222 Special is a NLGI #2 lithium complex grease
with molybdenum disulfide additive is suggested for locking mechanism and alignment pin lubrication. Over
time, lubricants can become contaminated with debris. Therefore, it is recommended to thoroughly clean the
existing grease and replace with new as needed (refer to
Section 4.2—Cleaning and Lubrication of the Locking
г
Inspect for excessive alignment pin/bushing wear, may be an indication of poor robot position during pickup/
drop off. Adjust robot position as needed. Check tool stand for wear and alignment problems. To replace worn
alignment pins (refer to
Section 5.3.2—Alignment Pin Replacement
г
Inspect for wear on the ball bearings/bearing race, may be an indication of excessive loading.
Sensors and Cables
г
Inspect sensor cable connectors for tightness, if loose tighten connections.
Electrical Contacts/Pin Block (Modules)
г
Inspect for damage, debris, and stuck/burnt pins. Clean pin blocks as required (refer to
Seals (Modules)
г
Inspect for wear, abrasion, and cuts (refer to
