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so we could reduce labor costs for each part, and free our people to work on other tasks. We chose Hartwig because their proposal satisfied all of our demands and they convinced us that the Okuma CNC lathe was the best solution for our application.”


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Hartwig’s Scott Clinger recommended the Okuma LB- 3000EX-MYW CNC machine tool as the best choice for per- forming the various machining operations necessary to meet Loveridge’s accuracy and part volume requirements. “How- ever, this situation demanded a lot more than a great machine tool, so I con- tacted our factory automation partner, Gosiger Automation in Dayton, Ohio. After I explained the customer’s require- ments to Mark Eddy and his team, they designed a comprehensive solution that incorporated robotics, inspection and material handling.”


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www.clausing-industrial.com 90 ManufacturingEngineeringMedia.com | June 2014


“One of the critical issues with this application is that the part starts as an aluminum impact forging and the OD to ID is not perfectly concentric. This made automating loading and unloading of parts more difficult. Another factor we wanted to address is how to automate part inspection and any necessary tool offsets,” said Loveridge.


Meeting these demands required Gosiger Automation to integrate a num- ber of components with the Okuma lathe. The first challenge, according to Mark Eddy, was enabling the Fanuc M-10iA/10 six-axis industrial robot to properly locate and grip the forgings despite the lack of OD/ID concentricity. “The aluminum impact forgings are manually loaded onto a powered conveyor queue standing on end, hollow end up. The conveyor has fixed side rails to maintain the part positioning. At the robot end of the con- veyor, a nest captures the leading part in a nesting position for robotic handling. Each of the continuous belt conveyors has a capacity of 30 parts,” said Eddy. “After pick up, the forging is evaluated using Fanuc iR-Vision to determine the offset of the part bore from the robot- gripped O.D. This eliminates the effects of I.D. to O.D. part run out when loading the work holding. The robot, using


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