The Rise of the Seventh Axis in Robotic Applications
In recent years, the significance of the seventh axis in robotics has gained immense traction, transforming how industries approach automation. A few years back, discussions around robotics typically revolved around four, five, or six-axis arms that dominated various applications. However, the introduction and increasing adoption of seventh-axis products have broadened the scope of robotic capabilities, offering innovative solutions across various sectors.
Understanding the Seventh Axis
At its core, the seventh axis—often termed a robot transfer unit (RTU)—functions as a linear track that allows robotic arms to traverse different locations within a work cell or assembly line. This added functionality minimizes the need for manual repositioning of the robot, significantly enhancing efficiency and workflow. The seventh axis acts as an extension of the robot’s reach, allowing for a greater operational footprint without the cumbersome need to relocate the entire robotic system.
Güdel: A Pioneer in the Seventh Axis Space
Swiss industrial automation company Güdel has been at the forefront of developing solutions involving the seventh axis. With a rich history of designing tracks, axes, and gantries for automated assembly, Güdel has successfully integrated these systems into modern robotic applications. Their recent innovation, the CoboMover, exemplifies the company’s dedication to pushing the boundaries of robotic functionality.
Spotlight on the CoboMover
The CoboMover is a remarkable seventh-axis linear track engineered specifically for collaborative and lightweight robots. It extends the working range of these robots up to an impressive 5 meters (or 16.4 feet). This capability allows operators to optimize their robotic systems, enabling robots mounted on the CoboMover to service multiple workstations seamlessly without manual intervention.
Güdel has ensured compatibility across the board, with the CoboMover being suitable for over 60 collaborative robots and smaller traditional robotic systems. Additionally, it features mounting options at both 0° and 180°, providing users with versatility based on their operational needs. With a payload capacity of up to 78 kg (172 lbs.), the CoboMover accommodates the robot’s weight, ensuring a well-rounded performance.
The technical specifications highlight the CoboMover’s efficiency, offering stroke lengths ranging from 1000 mm to 5000 mm, with a maximum speed of 2 m/s, and acceleration capable of reaching 2 m/s². Moreover, it boasts a repeatability of ± 0.05 mm, underscoring its precision for various tasks.
The drive system utilizes a toothed belt paired with Güdel’s HPG045 angular gearbox, delivering durability and reliability, hallmarks of Güdel’s engineering prowess.
Güdel’s Modular Track System: TMF-4-B
In addition to the CoboMover, Güdel continues to innovate with the introduction of the TMF-4-B modular track system, featuring cutting-edge air bearings. Designed to meet specific industry needs, particularly in the automotive sector, the TMF-4-B can handle robots weighing up to six tons. It primarily serves the body-in-white market where precise component handling and welding are essential.
This advanced track system was developed in response to an integrator’s request to move a precision paint robot efficiently without embedding tracks into the floor, showcasing Güdel’s commitment to tailored solutions.
Check out the video below from Güdel, demonstrating the TMF-4-B in action.
Conclusion
In the evolving landscape of robotic applications, the seventh axis stands out as a transformative technology, driving efficiency and flexibility in automation. Companies like Güdel are pioneering this shift with innovative solutions that enhance productivity and redefine the possibilities of robotic systems. As the adoption of the seventh axis continues to grow, industries can look forward to a new era of streamlined operations.