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15/09/2008
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A new linear assembly system has been developed that is based on rotary indexing technology.
The Weiss LS linear transfer system has been incorporated in a special purpose machine developed by Dorner Engineering for the assembly of housings for CD and DVD navigation systems. In it, two work-piece carriers are linked together to form a pair, which run using precision guide rollers on a central guide rail. The carrier pair, with its lateral roller bearings, is picked up by a cylindrical cam at the entrance to the carrier locking station. Based on a 70mm indexing pitch, this principle enables up to 60 cycles per minute. A simple conveyor belt takes over the transportation of the carrier pairs between the individual locking stations.
Individual operations that take place within the system include: feeding of component parts, welding operations using a laser and the subsequent checking of dimensions and welding seams using an image processing system.
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Author
Tom Shelley
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