Yaskawa Motoman industrial robots and robotics automation systems

Motoman Robots Loading/Unloading

Custom material handling system includes two sets of dual Motoman UP400RN robots, working together in pairs using coordinated motion to load/unload chassis assemblies to/from a hanging conveyor. (Unloading cell shown.)Automotive Chassis Frame Assemblies

Motoman Robotics provided flexible robot system capable of handling all required chassis frame models and wheelbase lengths. Robot system meets line production rate of one chassis frame every 70 seconds. Robot gripper design prevents parts from dropping if air or power to cell is interrupted.

Project Challenges

Motoman Robotics Solution

Motoman Robotics provided a custom UP400RN material handling system consisting of loading and unloading cells. Working together, two robots grasp individual chassis frames at opposite ends and use coordinated motion to load them from a frame fixture onto a hanging conveyor. Two additional robots unload individual frames from the hanging conveyor onto an exit conveyor. Total system includes:

Fixtures/Tooling Details

Motoman Robotics provided four custom pneumatic grippers (one per robot), each including part present, gripper open/closed sensors. In the unload cell, two laser sensors on one robot and four laser sensors on the other are used to locate frames accurately (±1 mm/0.04") for pick-up. If air or power to cell is interrupted, a locking slide mechanism on the gripper prevents parts from being dropped. Motoman also provided two hanger stabilizing stations (one per cell). Each station uses 16 pneumatic cylinders and 32 sensors controlled by PLC to hold location accuracy of the hanger to ±3 mm (0.118"). Includes pneumatically actuated straightening device able to accommodate 15-degrees of hanger rotation and 5-degrees of hanger sway, mounted to a welded tubular cantilevered frame capable of supporting hanger assembly with two frames 5 degrees off center.

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