Abstract
A geometric accuracy design method of multi-axis NC machine tool for improving machining accuracy reliability
Highlights
Machining accuracy is critical for the quality and performance of a mechanical product and is an important consideration for any manufacturer
This study suggests that it is possible to obtain the relationships between geometric errors and specify the accuracy grades of main feeding components of mechanical assemblies for improving machining accuracy reliability
It is influenced by machining errors belonging to several categories, e.g. geometric errors caused by mechanical-geometric imperfections, misalignments, wear of the linkages and elements of the machine tool structure, by the non-uniform thermal expansion of the machine structure, and static/dynamic load induced errors [8]
Summary
Machining accuracy is critical for the quality and performance of a mechanical product and is an important consideration for any manufacturer. It is influenced by machining errors belonging to several categories, e.g. geometric errors caused by mechanical-geometric imperfections, misalignments, wear of the linkages and elements of the machine tool structure, by the non-uniform thermal expansion of the machine structure, and static/dynamic load induced errors [8]. A as a result, the distribution of accuracy of machine tools is a problem of distribution of tolerances of these geometric errors. This practice of allocation has not been developed and applied in any systematic manner to the design of machine tools
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