RM2 Ferris Wheel Part Positioners
Yaskawa MotomanPosted 09/25/2013
The new Yaskawa Motoman RM2-series slim-line Ferris Wheel positioner models have a 17% smaller width than standard positioners and are available with 755 kg (RM2-755SL) and 1,255 kg (RM2-1255SL) payload capacities. The overall positioner width is only 1 m wider than the part span (standard lengths are 2 and 3 meters); this results in a robotic welding work cell footprint that is only 1 m wider than the part. The positioner can rotate parts up to 1.3 m diameter. The 755 kg and 1,255 kg capacity models support mechanized automotive part fixtures and many construction machinery parts.
A new extra-large capacity Ferris Wheel positioner was designed to provide a higher payload (two models) and turning diameters in a reduced profile. The new models feature a 1,555 kg (RM2-1555) and 2,355 kg (RM2-2355) payload capacities. These larger scale positioners are suitable for truck exhaust assemblies or heavy agriculture/construction machinery components, and they have a turning diameter capacity of 1,524 mm (60 in) and 1,778 mm (70 in) with standard part spans of 3 or 4 meters.
The Ferris Wheel positioner provides two trunnion axes on each side of a major “Sweep” axis. All three axes are servo-driven, saving cycle time by allowing parts to turn into position while the trunnion stations rotate over/under the sweep axis. Motion of the trunnion in front of the robot(s) can be coordinated to the robot(s) to make circumferential welds while the part rotates. The load station can be “jogged” by the operator to an ergonomic position or to facilitate part tracking.
The positioners include air and DeviceNet service to each side of the positioner and feature the patented MotoMount fixture mounting system. They were designed to be compliant with the updated version of the Robotic Safety Standard (ANSI/RIA R15.06-2012).