engleski

Checking the accuracy of working systems

Deviations from a given relative motion between tool and workpiece are consequence of: failures generated in manufacturing phase or during assembly; elastic deformations caused by static, dynamic and/or thermal stresses; failures in control circuits. Check can be done by means of test devices that can be quickly and easily set on a machine, and processing of the given information can be performed on personal computers. One such test was made by means of “Quick Check Ballbar System” equipment of the “Renishaw” company on the three-axis machining centre. Testing is very short, and information about current condition of the machine is sufficient for analysis. Monitoring of working system condition, i.e. monitoring of changes in deviations could be done by laser interferometer. Besides, by applying elements of adaptive control, laser interferometer could be used for automatic (program) correction of geometrical deviations.

testing; monitoring; maintenance

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