Assembly - January 2009 - (Page 8) Automation Profiles Eight Robotic Cells Assemble Engine Part Those robots can fly like maniac ninjas. C rimping and press-fitting are not inherently difficult assembly processes—unless you have to complete them in less then 2 seconds and meet a tolerance of 1/50th the diameter of a human hair. That was the challenge faced by engineers at Device Tech Inc. (Hampshire, IL), when designing a system to assemble an engine component called a cam phaser. A cam phaser is an adjustable timing gear that uses oil pressure and a spring-loaded toothed wheel to retard and advance cam timing based on engine load and speed. In this first installment of a new series dedicated to automated assembly systems, Bruce Flesher, president of Device Tech, describes how his team met the challenge. For more information on Device Tech, call 847-683-7235 or visit www.devicetech.net. Describe the system. Power-and-free assembly system with eight cells. What are the dimensions of the product? 5 inches long and 1 inch in diameter. How many parts are assembled to complete the product? 22 What materials are the parts made of? Steel, aluminum, stainless steel, plastic, rubber, copper and an oil-based lubricant. What equipment is used in the system? 11 feeder bowls; eight, compact six-axis robots; three servo-driven linear slides; two hydraulic In this automated assembly system, compact six-axis robots load and unload parts from trays. Photo courtesy Device Tech Inc. Your Experts for Medical Device Adhesives & Dispensing Equipment Distributing Over 50 Brands of Adhesives, Dispensing Equipment & Adhesive Technology Adhesives for Medical Device Assembly from Permabond and Loctite. UV systems and cyanoacrylates. USP Class VI and ISO 10993 approved. A complete line of dispensing equipment and packaging options. Visit our website or contact the Glue DoctorTM with your assembly questions at www.ellsworth.com 800-888-0698 8 ASSEMBLY / January 2009 www.assemblymag.com http://www.devicetech.net http://www.ellsworth.com http://www.ellsworth.com http://www.assemblymag.com
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