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Manual, Tool Changer, QC-303
Document #9620-20-B-303 Base Tool Changer-09
2.3.2

2.4 Pneumatic and Electrical Connections

The air supply used for coupling and uncoupling the Tool Changer should be clean, dry and
non-lubricated. A supply pressure in the range of 60 to 100 psi is acceptable for operation of
the locking mechanism, with a setting of 80 psi suggested. The air should be filtered 50
micron or better.

3. Operation

The Master locking mechanism is pneumatically driven to couple and uncouple with the bearing race on
the Tool Plate. The Master Plate utilizes air ports from a control module to provide lock and unlock
pressure to the locking mechanism.
CAUTION: Safe, reliable operation of the Tool Changer is dependent on a
continuous supply of compressed air at a pressure of 60–100 PSI. Robot motion
should be halted if the air supply pressure drops below 60 PSI for any reason.
ATTENTION: All Tool Changers are initially lubricated using MobilGrease® XHP222
Special grease. The end user must apply additional lubricant to the locking mechanism
components and alignment pins prior to start of service (See
Lubrication, Adjustment and
with every Tool Changer. Note: MobilGrease® XHP222 Special is a NLGI #2 lithium

3.1 Coupling Sequence

Position the Master above the Tool and move the Master into locking position. The mating
surfaces of the Master and Tool should be parallel and not touching. Make sure that the
tapered alignment pins from the Master enter the alignment holes on the Tool. The alignment
pins should be relatively concentric with the alignment holes such that they do not rub against
the edge.
The locking mechanism allows the Master to "pull up" the Tool with relatively large gaps
between the two sides. It is recommended that the mating faces of the Master and Tool not be
touching, but be within 0.04" (1 mm) of each other when coupling to minimize stress and wear
on the locking mechanism.

Pinnacle Park
1031 Goodworth Drive

Tool Stand Sensors

It is highly suggested that the customer provide a sensor that detects the presence of a
properly seated tool in the Tool Stand. The sensor may be used prior to coupling to
ensure there is a tool properly seated in the stand. Sensors may also be used as the
robot starts to move away after uncoupling. This provides a fail-safe measure in the
event that a tool should become jammed in the stand or if the tool should fail to
release properly from the robot.
Proximity sensors should be located so that the sensing face is vertical to prevent
swarf or other debris from falling on the sensor and creating false readings.
CAUTION: Do not use the Tool Changer in the fail-safe condition for
extended periods of time. Do not transport the Tool Changer in the fail-
safe condition. Possible damage to the locking mechanism could occur.
Replacement). Tubes of lubricant for this purpose are shipped
CAUTION: The locking mechanism must be in the unlock position when
attempting to couple the Tool Changer. Failure to adhere to this condition
may result in damage to the unit and/or the robot.
Apex, NC 27539
Tel: 919.772.0115
Fax: 919.772.8259
B - 7
Section 4.2—Cleaning,
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