Calibration System

XR20-W

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The Renishaw  calibration system measures the angular position of rotary axes to within ±1 arc second, wirelessly, for testing the accuracy of lathes, multi-axis machine tools, mill-turn machines, trunnion tables and spindles. The XR20-W works in conjunction with XL-80 or ML10 laser interferometers, as the system combines the readings of the rotary calibrator and laser to determine positioning errors in axes under test.

 

The rotary axis calibrator is generating positive feedback from the field with its advanced, compact design allowing easier set-up and use, the company states. Application flexibility is extended by the addition of new off-axis rotary software that allows the XR20-W to be used even when it cannot be positioned directly on the rotary axis under test. The software calculates true position and records axis performance and errors when compared to the intended target. The test takes about ten minutes and results are sent to a PC via Bluetooth® connection. Users say they can now test more and different machine tools than previously possible, giving a better return on investment and offering a more attractive service to their customers.

 
The XR20-W’s lightweight–just over two pounds–and wireless operation allow fast setup and eliminate safety hazards created by cables. It attaches to a rotary axis via a flexible mounting ring assembly, and is centered within ±1 mm (0.04") using a visual aid. Flexible mounting options include an adapter plate for rotary tables with unsuitable center recesses and a chuck adapter for lathes. The various mounting options ensure faster set-up and minimize alignment errors that can lead to measurement errors.

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