Manufacturing Technology 2024, 24(2):307-314

Research on Linkage Accuracy of "Baby Hanging Basket" Five-axis Precision Machine Tool

Yuanyuan Wu ORCID...1, Huiling An ORCID...1, Bo Li ORCID...1, Hua Zhang ORCID...1, Lai Hu ORCID...1,2
1 School of Electrical and Electronic Engineering, Chongqing Vocational and Technical University of Mechatronics, Chongqing, 402760, P.R. China
2 School of Mechanical Engineering, Xi’an Jiaotong University, 28 Xianning Road, Xi’an, Shaanxi 710049, P.R. China

The "baby hanging basket" five-axis precision machine tool (BHBFPMT) studied in this study is mainly used to process open impeller and closed impeller in aerospace field. However, the linkage accuracy (LA) measurement of five-axis machine tool is one of the important detection means to ensure the tolerance requirements of precision parts. The mathematical model of linkage accuracy (LA) of "baby hanging basket" five-axis precision machine tool (BHBFPMT) was established. The accuracy of X, Y, Z, B and C axes was measured, respectively. Combined with the measurement results, a pulse compensation method was proposed to compensate the accuracy. The linkage accuracy of the machine tool was analyzed by the machining and precision measurement method of "round-rhombic-square" trial cutting parts. The results show that: (1) In single-axis measurement, the positioning accuracy of X, Y, Z, B and C axes are 0.00096 mm, 0.00261 mm, 0.00173 mm, 0.0113 mm and 3.62 '', respectively. (2) When the pulse changes of B axis and C axis are 1048630 and 1048596, respectively, the positioning accuracy meets the accuracy requirements of "baby hanging basket" five-axis precision machine tool. (3) By measuring and analyzing the accuracy of "round-rhomb-square" test pieces, the linkage accuracy of "baby hanging basket" five-axis precision machine tool is less than 20 μm, which meets the factory standards and precision requirements of machine tool.

Keywords: "Baby hanging basket" five-axis precision machine tool (BHBFPMT), Linkage accuracy (LA), Precision, Measurement, Pulse compensation
Grants and funding:

This research was funded by the Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJZD-K202203701)

Received: July 4, 2023; Revised: August 25, 2023; Accepted: April 8, 2024; Prepublished online: April 8, 2024; Published: April 30, 2024  Show citation

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Wu Y, An H, Li B, Zhang H, Hu L. Research on Linkage Accuracy of "Baby Hanging Basket" Five-axis Precision Machine Tool. Manufacturing Technology. 2024;24(2):307-314.
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