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Omron's linear direct drive axes in the electronics industry
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LET – Automation located near Frankfurt is one of the leading companies in the electronics industry for the processing of materials and components using laser technology. For several years, the company has been providing innovative mechanical engineering and process solutions to its renowned customer base. As far as drive technology is concerned, the company and its employees have, for some time now, been relying on linear direct drives from Omron.
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Shorter project processing times with increased machine utilisation
With the newly-developed “Z-CO3” laser bonding cell, the focus of the development engineers was on maximum utilization with minimum downtime. Furthermore, prefabricated linear axis were to be used, in order not to jeopardize the already very tightly-calculated project time schedule. For these reasons, the designers decided in favour of the extensive range of Omron complete axes with linear drive. Using the provided 3D CAD drawings, the factory-assembled complete axes enable the developers, in the shortest possible time, to design the machine on the PC and to localize collision areas. Thanks to the well-adapted range, the developers were able to select the appropriate linear system for the already predefined installation space.
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Minimised downtimes – Thanks to the “twin” linear axis in double-head configuration
The double-head axis selected for loading and laser soldering comprises 2 moving tables on one track. This allows running two different, high-precision processes at the same target position at different times. For the laser soldering application, this actually means that the electronic component is transported and positioned by the first moving table so that, subsequently, the second moving table can position the laser with µm-precision for the soldering process. The repeatability of the positioning for both processes as well as an exact in-positioning control, are the deciding criteria for the subsequent quality of the soldered bond. For the movement and positioning of the substrate carrier, a standard complete linear axis is used with a maximum force of 220 N and a travel distance of 643 mm.
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Simplest integration and fastest commissioning.
The factory-assembled complete axes are endurance-run tested before delivery to the customers. They include the linear motor incl. magnetic track, measurement system and the mechanical carrier and guide elements. According to the fitters, the mechanical integration was child’s play, as the unit was of compact dimensions and already contained the cable chain. The commissioning engineer praised the plug-in connection system and the easy-to-operate “auto tuning” of the linear complete axes.
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