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- W4365514744 abstract "Abstract The geometric error of the rotation axis of a multi-axis machine tool is a highly sensitive error in the geometry error of the machine tool. Therefore, establishing an evaluation system for geometric errors of rotation axes is important for improving the machining accuracy of workpieces. First, a model for predicting the geometric error of the rotation axis was established based on the multi-body system theory, and then the mapping relationship between the geometric error of the rotation axis and each region with curvature changes in the S-shaped sample is identified. Next, based on the average value in seven different regions with curvature changes in the S-shaped sample, the weights of the mapping regions were calculated. Subsequently, the weights of the 12 geometric errors of the rotation axis (ε x (A), ε y (A), ε z (A), (δ x (A), (δ y (A), (δ z (A), (ε x (C), ε y (C), ε z (C), (δ x (C), (δ y (C) and (δ z (C)), and the weights of two rotation axes were identified to establish a comprehensive evaluation system for the geometric errors of rotation axes. Finally, an S-shaped sample was machined on the TuopuVMC-C50 five-axis CNC machine tool, and on-machine measurement experiments were conducted on two rotation axes with the established evaluation system. The results indicate that the relative error between the actual value and the theoretical value is less than 1.0%. Further, the comprehensive performance of the machine's rotation axes was evaluated step by step based on the theoretically calculated weight values." @default.
- W4365514744 created "2023-04-15" @default.
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- W4365514744 date "2023-04-14" @default.
- W4365514744 modified "2023-09-23" @default.
- W4365514744 title "Comprehensive Analysis and Evaluation of the Geometric Errors of the Rotating Axis of Five-axis Double-pendulum Machine Tools Based on S-shaped Samples." @default.
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- W4365514744 doi "https://doi.org/10.21203/rs.3.rs-2778656/v1" @default.
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