Single setup identification of component errors for rotary axes on five-axis machine tools based on pre-layout of target points and shift of measuring reference

• A basic idea of pre-layout of target points is proposed.
• A basic idea of shift of measuring reference is proposed.
• A single setup identification method of 12 component errors is proposed.
• The basic idea is expanded to different configurations of machine tools.
• Validation and uncertainty analysis are provided.

This paper proposes a single setup identification method of 12 component errors of rotary axes on five-axis machine tools by using a touch trigger probe and an artefact. At first, a basic idea of pre-layout of target points combined with the shift of measuring reference is proposed. Influence of setup errors of touch trigger probe and artefact on measuring results is identified quantitatively and included in error models. A single setup measuring method is then designed to identify 12 component errors of rotary axes on five-axis machine tools with a tilting head and a rotary table. The expansion of this basic idea on five-axis machine tools with other configurations is also provided. Validation and uncertainty analysis of the identified values are also provided. The measuring accuracy is guaranteed by the complete error model while the measuring efficiency is improved significantly by the single setup measuring method.