Usually threads are tested by hand after manufacturing and often on a random basis. However, equipment is needed for built-in, automated test with which a 100% control is possible. For these reasons, an automated thread control device has been developed as an intelligent tool holder with built-in wireless sensors. The sensors detect during cutting of the thread the occurring torques and the relative stroke of the plug gauge. Using this new device measurement of the thread length and the compliance with specified tolerances are possible in process. The software of the measurement system was developed with LabVIEW and enables the capture, processing, visualization, documentation and reproduction of the measured data and tolerances. The software can also stopp the maschine tool if there is a fault.
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