High-Capacity Automated Guided Vehicles
Fori Automation recently provided (2) High Capacity AGVs for the assembly of rockets for a large aerospace OEM.
The High Capacity AGVs can lift and transport up to 330,000 lbs. when used as a pair. Each AGV is capable of 165,000 lbs. when used in a single tool configuration. The system is designed to carry several different tools with varying lengths, widths, and total weights. The AGV system utilizes an optical coupler to communicate between the AGVs to coordinate motion and safety.
Each AGV includes (4) servo lift arbors, (6) suspended drive wheel assemblies and (8) suspended caster assemblies. The AGV chassis was custom designed to accommodate all of the different use cases. Each system included (3) different guidance methods for the various use cases within the plant. Currently, the system utilizes semi-automated control, with the ability to be upgraded to fully automated in the future.
The system can repeatedly locate within +/- 1.5mm at pick and drop stations. While driving the vehicle must maintain +/- 10 mm at slower speed. Improved accuracy and repeatability are accomplished through the use of Siemens servo motors and drives. The system is based on a high voltage DC Architecture, with a DC-DC converter to run the high voltage servo motors and drives.
The AGV solution reduced reliance on overhead cranes and other manual material handling methods for moving tooling and product through the plant. The AGVs will improve production flow and improve safety and repeatability for the assembly processes moving forward.