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Renishaw has added a probe option for its Revo five-axis measurement system, which allows surface-finish inspection to be fully integrated within coordinate measuring machine (CMM) routines.

With a measurement capability of 6.3 to 0.05 micron Ra, the SFP1 surface-finish probe provides a ‘single platform’ that will eliminate the need for handheld sensors or the necessity to move parts to costly dedicated surface-finish measuring machines, reducing labour costs and inspection lead times.

CMM users will now be able to automatically switch between part scanning and surface-finish measurement, with analysis all contained in a single measurement report.

As a fully integrated option for the Revo five-axis measurement system, users of the SFP1 surface-finish probe will benefit from a range of features that will boost inspection speed and flexibility, according to the company.

The probe incorporates a C axis, which, combined with the infinite positioning capability of the Revo measuring head and a choice of stylus holders, allows the probe tip to be automatically orientated to any angle to suit the part, ensuring that high-quality surface data is acquired.

The SFP1 is supplied with two dedicated stylus holders, the SFS-1 straight stylus and SFS-2 cranked stylus, which are selected under full measurement program control using the Revo system’s modular rack system (MRS).

This enables flexible access to component features combined with the consistency of a fully automated CNC methodology.

Calibration of the sensor is also automated and is carried out within a CMM software program.

A new surface-finish calibration artefact is mounted on the MRS and is measured using the SFP1 probe.

Software then adjusts parameters within the probe in accordance with the artefact’s calibrated value.

A skidded probe type with a 2-micron (0.000079in) tip radius diamond stylus, the SFP1 surface-finish probe outputs Ra, RMS and raw data formats to the metrology application client software via Renishaw’s UCCServer software using the I++ DME protocol.

The raw data can subsequently be presented to specialist surface analysis software packages for further detailed reporting.

Renishaw

A world leader in engineering technologies, Renishaw’s core skills in measurement and precision machining serve sectors as diverse as dimensional metrology, spectroscopy, machine calibration, motion control, dentistry and surgical robotics.

A world leader in engineering technologies, Renishaw’s core skills in measurement and precision machining serve sectors as diverse as dimensional metrology, spectroscopy, machine calibration, motion control, dentistry and surgical robotics.

Sensors for co-ordinate measuring machines (CMMs) are an industry standard, from basic touch-trigger probes through to automated stylus and probe changers, motorised indexing probe heads, and revolutionary five-axis measurement systems.

Machine probes for CNC machine tools allow automated tool setting, workpiece set-up, in-cycle gauging and part inspection. Products include laser tool setters, contact tool setters, tool breakage detectors, touch probes and high accuracy inspection probes.

For motion control, Renishaw supplies laser encoders, optical linear encoders, optical angle encoders, optical rotary encoders, magnetic rotary encoders, magnetic chip encoders and magnetic linear encoders.

To analyse the static and dynamic performance of position-critical motion systems, Renishaw’s laser interferometer and environmental compensation system offers a linear measurement accuracy of 0.5 ppm, readings of up to 50 kHz and a linear measurement speed of up to 4 m/s, with a linear resolution of 1nm.

Renishaw’s Raman spectroscopy products exploit the Raman effect to identify and characterise the chemistry and structure of materials. A diverse range of analytical applications include pharmaceutical, forensic science, nanotechnology, biomedical and semiconductors.

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