Gripping, turning, pivoting, picking up and putting down again, then returning back to the starting position – articulated arms in industrial robotic systems perform the exact same movement time after time. For this purpose, igus has developed the new modular and cost-effective robolink D. In this new system, the robolink articulated arm is driven directly by positioning the motor directly on the axle. The new development is based on igus’ line of self-lubricating PRT slewing ring bearings, which are installed in a plastic housing.
The system is driven by a worm gear drive and a NEMA 17 or 23 stepper motor. These and other engines are controlled with commercially available standard control modules. The new robolink D system differs from previous igus robotics in its drive technology. Until now, the stepper motors were not placed in the robotic arm itself, but instead in a separate drive unit, driven by means of rope hoists coupled to it. This has the advantage of keeping the system very lightweight. and the direct drive makes the robolink articulated arm tougher and more durable, opening up more opportunities for lean automation. Here, robots carry components from cell to cell. This allows manufacturers to respond to adaptations more flexibly, and to achieve a significant cost savings.
The robolink D articulated arm system is driven directly by a motor on the axle. The basis of the joint is an igus self-lubricating PRT polymer slewing ring. (Source: igus GmbH)
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