Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (6): 857-861.DOI: 10.12068/j.issn.1005-3026.2019.06.018

• Mechanical Engineering • Previous Articles     Next Articles

Reconstruction Algorithm of Machine Tool Flatness Error Profile Based on Mutative Scale Method

LU Ze-chen, ZHAO Chun-yu, LIU Zhi-xue   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2018-04-23 Revised:2018-04-23 Online:2019-06-15 Published:2019-06-14
  • Contact: ZHAO Chun-yu
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Abstract: In order to solve the problem that the flatness measurement of the installation surface of machine tool guides in China cannot be digitally described, a new method of flatness error detection of the guide rail mounting surface of numerical control machines was proposed based on the mutative scale theory, whereby the total length of the mounting surface can be measured by splicing several short mounting surfaces with overlapping areas. The new instrument was designed and the measurement principles were made. The theoretical model of the algorithm was established by utilizing the geometric relationship between the reference plate, the measuring instrument and the installation surface of the machine tool guideway. And an algorithm for reconstructing the flatness error profile of the installation surface of the machine tool guideway was developed and simulated. The results demonstrated that the algorithm can reconstruct the flatness error profile of machine tool guides’ installation surface accurately.

Key words: flatness, mutative scale theory, digital detection, stitching measurement, profile reconstruction algorithm

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