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Leadscrews
Applications
Trantek Drive Systems
Inc., offers Screw Driven Robot and Tooling Shuttles.
TranTek Drive Systems Inc. has been providing screw driven
shuttles to move robots and tooling in automotive feeder plants. A typical
shuttle must move 5,000 pounds at a maximum speed of 8 feet/second along
varying length indexes (as short as 5 feet and as long as 150 feet). The
tooling shuttles typically move 2000 pounds.
TranTek Drive Systems, Inc. has provided these screw driven
shuttles when the application and environment are not well suited for other
types of shuttles (eg. Rack and pinion driven).
The screw driven typical shuttle includes:
- Heavy duty steel
frame weldment
- Hardened and ground
wear rails
- 2 _ diameter high
lead (six inches) cold formed screw
- Heavy duty patented Dri-Tran®
polymer nut
- Follower and drive
end bearings
- Gear reducer
- Cat track assembly
- Steel carriage with
gear reducer mounting assembly
- Screw cover/guard
- Heavy duty cam
follower bearings
- Machined interface
tie plate for joining 16 foot sections for longer shuttles
- Mastering
pin/fixture assembly for mastering robot position
- Electronic/automatic
lubrication device for Dri-Tran®
polymer nut
- Rail wipers to
remove debris
- Rail covers to keep
debris off the rails
- Leveling and floor
mounting assembly
- Safety stops
TranTek provides system integration and a 20 hour run-off
by integrating the robot and robot seventh axis drive package and cycling
the robot/shuttle along the length of the shuttle.
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Screw
Driven
Robot Transfer Shuttle
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Load
Bearing Cam Followers and Fixture
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Nut Fastened to
Carriage With Nut
Lubricator - Wear Rail With
Wipers and Guard
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Fixed
Drive Motor at End of Shuttle
That Allows Fewer Cables to Wear
in the Cat Track
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Screw
Stand-off With Lubricator
for Longer Lengths
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The features
and benefits of this program included:
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Feature
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Benefit
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Custom Shuttle Design
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- Shuttle designed
for each process application
- Different shuttle
cross sections to fit in smaller areas
- Different cat
track locations to accommodate process
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Heavy Duty Cam Follower Bearings
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- Bearing L10 life
over 5 years
- Eccentric bearings
on sides and bottom to facilitate set up and assembly
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Seventh Axis Robot Package for Drive
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- Lower costs
compared with separate drive and controls
- Integrated robot
motion and programmed thru robot teach pendant
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Cold Formed Drive Screw With High Lead
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- Stand-offs allow
multiple screws for longer indexes
- Six inch screw
lead allows faster speed shuttle (up to 8 feet/second)
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Flame Hardened and Ground Wear Rails
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- Lower overall
costs compared with profile rail
- Easier to align
for longer lengths compared with profile rails
- Excellent wear
properties with a hardness of 60 Rc on
wear surfaces
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High Lead Screw and Dri-Tran®
Polymer Nut
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- Lower noise than
rack and pinion
- 67% faster than
rack and pinion
- Better suited for
harsh (dirt/weld slag/foundry/etc) environments
- More forgiving to
crashes
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TranTek Drive Systems, Inc. personnel are available to review
your shuttle applications and recommend the best shuttle solution. Please
call us at (231) 946-6270 Ext. 1011 for further information. You can also
email your inquiry jgriffin@trantekautomation.com.
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