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-7
US Patent No.: 8,132,816 B2
2.1 Master Interface
The Master assembly is attached to the robot arm. The Master plate is designed with mounting features
such as a boss and/or bolt and dowel holes. These features are used to accurately position and secure the
Master to the robot.
An interface plate is utilized to adapt the Master plate to a specific robot flange that is not compatible with
the Master plate mounting features. Custom interface plates are available upon request (refer to
of this manual for technical information on mounting features).
If the customer chooses to design and build an interface plate, the following should be considered:
CAUTION:
Do not use more than two alignment features when securing a Master plate
to an interface plate. Using more than two alignment features can cause damage to
equipment. Use either two dowel pins or a single dowel pin along with a boss/recess
feature to align the Master plate with the interface plate.
CAUTION:
Do not use dowel pins that are too long that will not allow the interface plate
and Master body to mate flush with each other. Using dowel pins that are too long will
cause a gap between the interface plate and the Master body causing damage to the
equipment. Use the proper size dowel pins that will not extend further than allowed by
the Master body.
Master Plate
Interface Plate
Dowel pins which are
proper size allowing
interface plate and Master
Plate to mount flush.
Two dowel pins
(or a single dowel pin along
with a boss/recess) being
used as alignment features.
Flush
Correct Mounting of Master Plate
Master Plate
Interface Plate
Dowel pins which are
too long can cause a
plate and Master Plate.
gap between interface
Optional Boss
Gap
Gap
A boss and two dowel pins
as alignment features can
as difficult to align and can
cause damage to equipment.
Incorrect Mounting of Master Plate
•
The interface plate should be designed to include bolt holes for mounting and either two dowel pins
or
a dowel pin and a boss for accurate positioning on the robot and Master plate. The dowel and boss
features are important to prevent rotation (refer to robot manual for robot mounting features).
•
The thickness of the interface plate must be great enough to provide the necessary thread engagement
for the mounting bolts.
•
Dowel pins must not extend out from the surface of the interface plate farther than the depth of the
dowel holes in the Master plate.
•
If a boss is used on the Master plate, a recess of proper depth and diameter must be machined into the
interface plate to correspond with the boss on the Master plate.
•
Mounting bolts should not be too long, such that a gap is formed at the interface.
•
The interface plate must be properly designed to provide rigid mounting to the Master plate.
•
The interface plate design should take into account clearances required for Tool Changer module
attachments and accessories.
