QMT News: March 2014
High speed contact scanning
Renishaw will give a UK exhibition premiere to its new SPRINT high-speed contact scanning system for CNC machine tools. The SPRINT system incorporates a new generation of on-machine scanning technology that Renishaw says will deliver a step-change in the benefits of process control, enabling fast and accurate form and profile data capture from both prismatic and complex 3D components.

It says that on Stand 5730 visitors will see that for blade manufacture, the SPRINT system provides unprecedented capability for blade tip refurbishment and root blending applications. The high-speed measurement of blade sections coupled with high data integrity (even on leading and trailing edges) ensures the indication of true part condition leading to an adaptive machining capability. Automated routines, such as set-up, blade alignment, blade scanning and data collection result in significant accuracy and cycle time improvements over touch-trigger systems.

For multi-task machining applications, the SPRINT machine tool scanning system offers process control capabilities including exceptionally repeatable diameter measurement cycles. By employing master part comparison, the SPRINT system becomes an ‘active' control enabling measure-cut processes to be automated for accurate diameters on large parts. This capability can result in the size of diameters being automatically controlled to within a few microns of tolerance.
Additional functionality offered by the SPRINT system provides a rapid health-check of a CNC machine tool's linear and rotary axes in seconds, making it possible to implement a daily machine monitoring regime with little or no operator involvement.

Each SPRINT application is enabled and supported by a software toolkit package which is dedicated to a specific industrial task, for example, the SPRINT blade toolkit. The toolkits include on-machine data analysis tools which run automatically in-cycle and provide measurement feedback to a CNC machining process.

At the core of the SPRINT system is the OSP60 scanning probe which has an analogue sensor with 0.1 μm resolution in three dimensions. The analogue sensor technology in the probe provides a continuous deflection output that is combined with machine position to derive the true location of the part surface. Measuring 1000 true 3D data points per second, Renishaw says the system's analytical capabilities provide unparalleled opportunities for work piece measurement, inspection, adaptive machining and on-machine process control.
www.renishaw.com
  
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