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LMT Fette Uses Bluetooth To Operate Thread Rolling Cycle
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LMT's Fette division, regarded as a world leader in thread rolling technology, has developed a totally new type of thread rolling head that uses Bluetooth communications technology between the head and control system on a CNC machine tool in order to control the rolling cycle and monitor the process. Available, from LMT (UK) in Coventry, the LMT Fette ES 16 ‘intelligent' radial rolling head will roll form threads between 12 mm and 22 mm diameter and up to 29.6 mm thread length in-cycle on almost any CNC machine tool. The tool head can be used either statically or in rotating applications and be mounted on the machine via shank or flange fittings. The thread rolling process is significantly faster for producing external threads and, because the material is cold formed under mechanical pressure, provides a stronger thread with an improved burnished surface finish. Within the rolling head is an integrated power amplifier, a contact sensor and a magnet to control the rolling cycle which is initiated automatically from the CNC control system through the Bluetooth wireless interface. The on-board, long life battery that powers the lifting magnet to actuate the head is guaranteed to perform more than 10,000 work cycles and can be quickly exchanged and recharged. In addition, an integrated interlock, via a cam plate, prevents the rolling head accidentally opening during the rolling process and the internal electronics are encapsulated so that they are shielded from any possible external influences. A mini control panel displays data such as battery condition, confirmation of the Bluetooth connection and ‘Ready to Process' indication signals that can be generated up to 50 m away. An important advantage achieved with the design of the electronic head is the simplification of the normal mechanical elements. For instance, pressure and tension springs and triggers are eliminated enabling service and repair to be performed more easily and setting up the three rolls for each size of thread is very straightforward. Both left and right hand threads can be rolled. http://www.machinetoolsonline.com/article.mvc |
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