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Rapid measurement of metal cutting discs

24 January 2012

A manufacturer of carbide cutting tools for metalworking is using laser displacement sensors from Micro-Epsilon to measure the width and height of cutting discs which wear very rapidly.

To ensure the accuracy of the finished machine tool, precise positioning is necessary, including the cutting discs.

Ceratizit relies on a measurement system that uses the optoCONTROL 2500 sensor during production control of the cutting discs. The measurement set-up was designed and developed by Benzing Feinwerktechnik GmbH. The vertically mounted optoCONTROL 2500 sensor traverses along the measurement object supported by a pneumatic processing unit.
The measurement system uses the shadow principle to detect the width of cutting edges in order to offer reliable measurement results with respect to the distance and height of the cutting edge lines.

Because the wear-free system works without touching the cutting disc, it has a minimal measurement time. The measurement data detected is transferred to a PC for further evaluation. The target object is assessed very quickly as the latitude is displayed graphically.

Micro-Epsilon’s optoCONTROL 2500 is a non-contact, laser-based measurement sensor that uses an integral, high resolution CCD camera for dimensional measurements. The sensor offers a high sampling rate (2.3kHz), combined with excellent repeatability (<3µm) and resolution (<To ensure the accuracy of the finished machine tool, precise positioning is necessary, including the cutting discs.

OptoCONTROL measures the dimensions of a target or the position of an edge using the ‘shadow principle’. The system consists of a sensor unit and a controller. A parallel light curtain is produced using a laser light source. The CCD camera in the receiver section measures the ‘target’ contour formed by the shadow. The sensor unit is controlled and evaluated by an intelligent controller, with a graphical display provided for operation and measurement functions.

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