Manual, Robotic Tool Changer, QC-5 through QC-27
Document #9610-20-2254-09
Pinnacle Park • 1041 Goodworth Drive • Apex, NC 27539 USA • Tel: 919.772.0115 • Fax: 919.772.8259 • www.ati-ia.com
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3.9 Lock and Unlock Pneumatic and Valve Requirements
To lock or unlock the Tool Changer, a constant supply of compressed air is required. If there is a
loss of air pressure in the locked state, the cam prole prevents the master plate and tool plate
from unlocking, and the Tool Changer goes into the fail-safe condition.
CAUTION: Do not use or transport the Tool Changer in the fail-safe condition, a state
where the master plate is locked to a tool plate with no air pressure supplied. Damage
to the locking mechanism might occur. Restore proper air pressure before continuing to
use the Tool Changer.
3.9.1 Air Requirements
Proper operation of the locking mechanism requires a constant supply of clean, dry, non-
lubricated air, with the following conditions:
• Pressure range: 60-100 psi (4.1–6.9 Bar).
• Filter minimum: 40 microns.
• Flow maximum: 1/3 CFM at 70 psi (4.8 Bar), when cycled continuously.
3.9.2 Valve Requirements and Connections
To lock the Tool Changer, air must vent to the atmosphere from the unlock port and be
supplied to the lock port. Conversely, to unlock the Tool Changer, air must vent to the
atmosphere from the lock port and be supplied to the unlock port. Therefore, a single,
2-position, 4-way or 5-way valve with either a 4-port or 5-port conguration is required.
CAUTION: Do not use a single, 3-way valve to supply air to the Tool Changer,
as this type of valve can not vent trapped air. Improper venting might result in
damage to the product and attached tooling, or injury to personnel. Connect
the lock and unlock air supplies to a single, 2-position, 4-way or 5-way valve
with either a 4-port or 5-port conguration.
Figure 3.19—QC-5 and QC-11 Lock and Unlock Pneumatic Connections
4 or 5-way Valve
Supply Clean, Dry,
Non-lubricated Air
60 – 100 psi (4.1 – 6.9 Bar)
Exhaust
Open to Atmosphere
Lock Port
Unlock Port
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