Angular Measurement of High Precision Reducer for Industrial Robot

XUE, Jie; Qiu, Zurong; Fang, Lin; Lu, Yaohuan; Hu, Wenchuan

doi:10.1109/tim.2020.3028887

Cited by 21 publications

(5 citation statements)

References 25 publications

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“…The simulation and analysis of the exact operation of robots and gear tooth contact were discussed by the authors Spitas C. et al [23] and Walha L. et al [24] in their publications. Angular measurements of high-precision reducers used in robots have been investigated by Xue J. et al [25]. Many mathematical tools are used to process calculations and model control systems, which were discussed in the publication by Caldarola F. et al [26].…”

Section: Parameters Characteristic Of High-precision Reducersmentioning

confidence: 99%

Determination of Methodology and Research of the Influence of the Trial Run of High-Precision Reducers on the Change of Their Characterizing Properties

et al. 2021

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This paper describes, in detail, the research of the influence of the trial run of high-precision reducers on the change of their characterizing parameters with the subsequent determination of the methodology for the identification of their critical parameters and positioning accuracy. The research was carried out on a sample of high-precision reducers during a 48 h run-in with the evaluation of changes in their characterizing parameters. The developed methodology unifies the approach to measuring the static and dynamic properties of high-precision reducers to identify their critical parameters and positioning accuracy. The article also points to the need for the correct implementation of the process for the introduction of the bearing reducer into operation after its incorporation into the relevant equipment with emphasis on improving the monitored critical parameters. The running-in of reducers is a little-explored area in terms of its effect on changing the wide range of characterizing properties of high-precision reducers. At the same time, it is complicated by the non-existent uniform methodology for the implementation of their run-in.

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Section: Parameters Characteristic Of High-precision Reducersmentioning

confidence: 99%

Determination of Methodology and Research of the Influence of the Trial Run of High-Precision Reducers on the Change of Their Characterizing Properties

et al. 2021

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“…igital displacement measurement technologies mainly involve capacitive grating [1] , magnetic grating [2][3] , optical grating [4][5] and time grating [6][7] measurement. Meanwhile, optical grating displacement measurement technology is widely used because of its strong anti-interference feature, simple structure, and ability to easily perform large-range measurements [8] . With the development of optical grating measurement technology, high-performance displacement measurements based on image recognition has emerged as a new high-performance approach [9] .…”

Section: Introductionmentioning

confidence: 99%

Stain-Detection and Anti-Stain Algorithms Based on Dual Detector Data Interchange in Image-Type Displacement Measurement Technology

Wan

Zhao

2023

IEEE Trans. Instrum. Meas.

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Displacement measurement technology based on image recognition algorithms represents a novel high-performance technique. In such measurements, when there are stains contaminating the measuring light path, it causes recognition errors from the linear array image sensor on the grating, resulting in inaccurate measurement results. Therefore, this report proposes stain-detection and anti-stain algorithms based on image recognition. The principle of image-type displacement measurement technology is described, and the influence of stains on the displacement measurements is analyzed according to four criteria in order to judge whether there are stains present. Then, an anti-stain algorithm based on the data exchange of dual-image sensors is proposed. Finally, experimental verifications are carried out. The experimental results show that the proposed algorithm effectively identifies the errors in the displacement measurements, when the experimental device is contaminated, the developed algorithms can accurately self-correct for the stain's interference. The results presented herein provide a theoretical basis for developing highly-reliable displacement measurement devices.

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“…Rotate vector (RV) reducer has the advantages of small size, compact structure and large transmission ratio [1]. The quality of its assembly determines the performance, production cost, and production efficiency of the product.…”

Section: Introductionmentioning

confidence: 99%

An Accuracy Prediction Method of the RV Reducer to Be Assembled Considering Dendritic Weighting Function

et al. 2022

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There are many factors affecting the assembly quality of rotate vector reducer, and the assembly quality is unstable. Matching is an assembly method that can obtain high-precision products or avoid a large number of secondary rejects. Selecting suitable parts to assemble together can improve the transmission accuracy of the reducer. In the actual assembly of the reducer, the success rate of one-time selection of parts is low, and “trial and error assembly” will lead to a waste of labor, time cost, and errors accumulation. In view of this situation, a dendritic neural network prediction model based on mass production and practical engineering applications has been established. The size parameters of the parts that affected transmission error of the reducer were selected as influencing factors for input. The key performance index of reducer was transmission error as output index. After data standardization preprocessing, a quality prediction model was established to predict the transmission error. The experimental results show that the dendritic neural network model can realize the regression prediction of reducer mass and has good prediction accuracy and generalization capability. The proposed method can provide help for the selection of parts in the assembly process of the RV reducer.

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Angular Measurement of High Precision Reducer for Industrial Robot

Cited by 21 publications

References 25 publications

Determination of Methodology and Research of the Influence of the Trial Run of High-Precision Reducers on the Change of Their Characterizing Properties

Determination of Methodology and Research of the Influence of the Trial Run of High-Precision Reducers on the Change of Their Characterizing Properties

Stain-Detection and Anti-Stain Algorithms Based on Dual Detector Data Interchange in Image-Type Displacement Measurement Technology

An Accuracy Prediction Method of the RV Reducer to Be Assembled Considering Dendritic Weighting Function

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