NEW: Touch Probe TC76-DIGILOG

Blum-Novotest introduces the first 25mm analogue touch probe – the TC76-DIGILOG

Touch probes are normally exactly what the name says: probes. If the stylus touches the workpiece surface, a switch signal is generated. Previously, analogue touch probes, i.e. those which measure and analyse the deflection of the stylus and simply do not emit a digital On/Off signal, were very large and costly and for the most part could only be found in coordinate measuring machines. In the shape of the TC76-DIGILOG, Blum-Novotest is introducing the world’s first touch probe for robust use in machine tools, combining digital and analogue technology in a 25 mm diameter device. In short: a "digilog" touch probe.

Flexibility in manufacture is becoming ever more important, not least because the increasing customisation of products is shrinking batch sizes. However, batch sizes are also falling due to “KAIZEN” techniques, because production is no longer taking place on a “stockpile” basis but always when supplies of a component are running low. The more frequently a machining centre is retooled, the more significant the set-up times become. Automatic retooling and calibration of devices, workpieces and tools can save a huge amount of time here.

A measurement system in the machine tool itself enables you to achieve this and more: automatic workpiece zero point detection, inspecting the raw part before machining – in this way undersized blanks can be detected and separated out before machining starts – or even detecting inaccuracies in the clamping of complex or very large components. With the latter, for example in the case of gear wheels for wind turbines, often a 100% quality check is not carried out following manufacture on a coordinate measuring machine, because machines which can measure such huge items are simply not available.

For decades now, Blum-Novotest has been offering touch probes and laser measuring systems for use in machine tools. The touch probes are either mounted in the machining area and the signal relayed by cable to the control, or the touch probe is housed in the tool magazine and exchanged like any milling tool into the spindle and then starts up the workpiece or tool to be measured. In this case, infrared or radio technology is used for data transmission.


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