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Renishaw showcases new RVP in Metalex 2016!

Source:Ringier Metalworking Release Date:2016-12-06 204
Metalworking
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The RVP (vision measurement probe) is a new vision measurement probe or use with the REVO-2 5-axis measurement system on co-ordinate measuring machines (CMMs). 

For certain applications, non-contact inspection provides clear advantages over traditional tactile probing techniques. Thin sheet metal parts or components with large numbers of holes as small as 0.5 mm, and parts which are not suited to tactile measurement, can be fully inspected with the RVP system.  RVP also gives exceptional improvements in throughput and CMM capability by utilising the 5-axis motion and infinite positioning provided by the REVO head.  It has an increased range of movement in the negative A-axis which can improve part access and reduce the complexity of stylus set-ups.

The RVP system comprises a vision probe body, a number of vision modules, rack ports and a calibration artefact. The image capture and processing components of the system are held inside the vision probe body and include an industry standard, robust, CMOS sensor for reliable image capture. The vision modules allow a range of features with different sizes and shapes to be inspected.  All vision modules contain integral LED lighting to achieve a sharp contrast between holes and part material. Background feature enhancement is also available using backlighting combined with bespoke part fixturing.

REVO-2 multi-sensor measurement system is the only scanning system for CMMs that simultaneously controls the motion of three machine and two head axes whilst collecting workpiece data using its range of 2D and 3D tactile probes, surface roughness measurement probe and non-contact vision probe. The head's novel design incorporates sophisticated laser measurement and electrical signal transmission technology for precise workpiece measurement at extremely high rates of data capture. The five-axis control system removes most of the unwanted dynamic errors associated with machine movement because the measuring head performs most of the work. As the head is much lighter and more dynamic than the CMM, it is able to quickly follow changes in the part geometry without introducing harmful dynamic errors. The REVO-2 multi-sensor system is managed by the same I++ DME compliant interface as the original REVO product.

REVO-2 incorporates Renishaw's own ATOM™ optical incremental encoder system that uniquely combines miniaturisation with ruggedness and exceptional metrology performance. ATOM is the world's smallest readhead using filtering optics. It offers speeds up to 20 m/s (29,000 RPM on a 17 mm disc) and resolutions to 1 nm (0.004 arc second on a 108 mm disc) with a range of linear and rotary (angle) scales available in stainless steel and glass.

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