Yaskawa Motoman Robotics

Motoman Robots Arc Welding and Handling

Motoman HP200 robots transfer individual 45-ft irrigation pipes between stations. Three HP50-35 robots equipped with multi-function grippers plasma cut holes for couplers, handle couplers and also weld couplers onto the pipes.Agricultural Irrigation Pipe

Both multiprocess robotic systems meet all project goals and objectives and improve productivity by automating material handling, plasma cutting and welding operations. Systems achieve aggressive process cycle time of 2 minutes for pipes with 5 holes and 4.5 minutes for pipes with 18 holes. Direct labor was significantly reduced by two to three (hard-to-find) skilled welders per system to part-time tending by an operator from an upstream robotic cell. Robotic systems meet customer’s quality objectives of 99.8% good welds.

Project Challenges

Motoman Robotics Solution

Motoman Robotics provided two identical five-robot multiprocess systems to plasma cut holes and weld couplings in irrigation pipes, as well as handle pipes between stations. Each custom system includes:

Fixtures/Tooling Details

Motoman Robotics provided custom end-of-arm tooling with clamping fixtures. The two HP200 robots use pneumatic 3-jaw mechanical (I.D.) grippers to handle pipes by their ends. Multifunction grippers on the three HP50-35 robots use two fingers to pick up a plasma cutting torch and cut holes in the pipe. The same fingers also pick up couplers and hold them in place for tack welding by the integrated welding torch. The handling portion of the EOAT pivots out of the way for the finish welding process.

 


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