A mapping model between the workpiece geometric tolerance and the end pose error of CNC machine tool considering structure distortion of cutting process system

Lin, Zixin; Tian, Wenjie; Zhang, Dawei; Gao, Weiguo; Wang, Lina

doi:10.1177/16878140211004771

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…In addition, geometric errors are relatively stable and easily compensated [3] . CNC geometric errors compensation is an important technique to improve CNC machining precision [4] .…”

Section: Introductionmentioning

confidence: 99%

A data-driven high-precision modeling method of machine tool spatial error under the influence of Abbe error

Zhang

jiang²,

Chen³

et al. 2023

Preprint

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Due to the complex mechanism of the influence of Abbe error on spatial accuracy, the Abbe error accumulated in the traditional spatial accuracy model is hard to be identified and cannot be eliminated, which affects the modeling accuracy and restricts the effect of accuracy improvement. This paper presents a data-driven spatial accuracy modeling method for machine tool under the influence of Abbe error, using a three-axis coupling measurement optical path to directly measure the comprehensive spatial accuracy data of machine tool containing Abbe error. In addition, in order to effectively identify the Abbe error in the comprehensive spatial accuracy, the Abbe error quantization function is established to eliminate the Abbe error in the spatial accuracy data of machine tool by analyzing its formation mechanism in the measurement process. Further, aiming at the problem of small data samples after eliminating Abbe error, the data samples are extended based on the degradation mechanism of machine tool spatial accuracy at different coordinate positions, and a high-precision spatial error model for machine tool is given. Finally, the experiment is conducted on a three-axis CNC machine tool with the model accuracy of over 95%, and the example application verification shows that the developed model scheme is feasible and effective.

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“…In addition, geometric errors are relatively stable and easily compensated [3] . CNC geometric errors compensation is an important technique to improve CNC machining precision [4] .…”

Section: Introductionmentioning

confidence: 99%

A data-driven high-precision modeling method of machine tool spatial error under the influence of Abbe error

Zhang

jiang²,

Chen³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…While the presented methodology follows roughly those of Lin et al (2021), the approach is much more pragmatic and suited to adaptability onsite considering differences in environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

A Parametric Tolerance Model for Numerically Controlled Digital Fabrication: Adaptation of kit-of-parts components for a pre-manufactured WikiHouse scenario

Buš,

Russell,

Curry

et al. 2023

Proceedings of the 41st International Conference on Education and Research in Computer Aided Architectural Design in Europe (eC

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Numerically controlled digital fabrication (NC) encompasses precise toolpaths generated according to the predefined geometry, material characteristics, type of machining processes, and processing tools. This includes a definition of tolerances, necessary for a successful and smooth assembly process when dealing with component-driven assembly after the components were fabricated. However, the prototyping and assembly practice often encounters a variety of issues in real fabrication and assembly scenarios: humidity of the environment, specific material properties, such as the ability of the stock material to change its dimensions according to the unexpected environmental conditions, unexpected different dimensions of the stock material delivered from a factory or a producer, variety of fabrication producers with different machine types, or unique conditions of a production machine. Therefore, there is a need to adapt the geometry of components to different humidity scenarios and combinations of stock material properties or specific machine or production-related processes, which influence the dimensions, and the tolerances embedded into the process of toolpath generation. To address these, we introduce an adaptive parametric model. This has been created as an open-source and open-access algorithm within the Grasshopper environment to easily modify the dimensions of tolerances according to specific and unexpected conditions. The paper also elaborates on and discusses the limitations of such an approach and the scalability and extendibility of the proposed tolerance engine.

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Research on machining deformation of aluminum alloy rolled ring induced by residual stress

Xue

Yang²,

Wu³

et al. 2023

Int J Adv Manuf Technol

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A mapping model between the workpiece geometric tolerance and the end pose error of CNC machine tool considering structure distortion of cutting process system

Cited by 7 publications

References 14 publications

A data-driven high-precision modeling method of machine tool spatial error under the influence of Abbe error

A data-driven high-precision modeling method of machine tool spatial error under the influence of Abbe error

A Parametric Tolerance Model for Numerically Controlled Digital Fabrication: Adaptation of kit-of-parts components for a pre-manufactured WikiHouse scenario

Research on machining deformation of aluminum alloy rolled ring induced by residual stress

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