A non-contact high precision measuring method for the radial runout of cylindrical gear tooth profile

Pei, Yong-Chen; Xie, Hai-Liang; Tan, Qing

doi:10.1016/j.ymssp.2019.106543

Cited by 21 publications

(5 citation statements)

References 14 publications

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“…Disk parts are important mechanical components that are widely used in industry [ 1 ]. Online measurement technology based on machine vision is of great significance for development of intelligent and digital manufacturing technology [ 2 , 3 ], and has been widely studied in recent years [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Online measurement method for dimensions of disk parts based on machine vision

Miao,

Tan,

Sun

et al. 2024

PLoS ONE

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Online measurement of disk part dimensions by the standard industrial camera features low cost, high efficiency and good universality, but the impact of projection distortion and end face chamfer on measurement is needed to overcome. Present work presents a measurement method to resolve above issues based on machine vision. To improve the measurement accuracy, lower end face of a disk part is determined as calibration plane and the upper end face is measurement plane. To reduce the impact of projection distortion and chamfer on measurement, the measurement points are reconstructed on the measurement plane by re-projection. Then, the inner and outer diameters of disk parts are measured by circle geometric fitting, and the thickness is calculated by the measurement plane position. The experimental results show that the method can online measure disk part dimensions just by a single image, and accuracy meets the requirements of universal grade disk parts.

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Section: Introductionmentioning

confidence: 99%

Online measurement method for dimensions of disk parts based on machine vision

Miao,

Tan,

Sun

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…The effect on the measurement results caused by the installation error of a gear has also been investigated [8,9]. Moreover, optical and visual methods for gear measurement have been widely used, which offer unique advantages in terms of micro-mini gear measurement, non-contact measurement, measurement for full tooth surface information and measurement efficiency [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect on the measurement for gear involute profile caused by the error of probe position

Ling¹,

Ling²,

Li³

et al. 2022

Meas. Sci. Technol.

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Gear involute artefact is a kind of measurement standard used to calibrate the involute measuring instruments. To measure the profile deviation of gear involute artefact more accurately, the effect on the measurement for gear involute profile caused by the error of probe position is considered, the value of profile deviations would be affected and the measurement curve of profile deviations would be compressed or stretched along the roll path length caused by the error of probe position. Moreover, about 60% of the measurement errors are concentrated within the involute root of roll path length ρ=0~5 mm. Based on above research, an adjustment method for probe position with the double roller-guide involute measuring instrument is proposed and measurement experiments are carried out by probes with probe radius ro =0.5 mm, 1.5 mm and 2.5 mm. As the error of probe position e>0, the curve of profile deviations at the root of involute is biased towards the body. As the error of probe position e<0, part curve of profile deviations at the root of the involute is biased towards the body but the profile deviation curve near the base circle is biased out of the body caused by the interference of the transition surface, and the measurement curve of profile deviations at the root of involute is significantly compressed. These errors decrease as the probe radius increases and the error of probe position decreases. The difference of profile slope deviations and profile form deviations measured by the three probes after adjustment is 0.11 μm and 0.04 μm respectively, which indicates the feasibility of the probe adjustment method described above. The research supports the machining and measurement of high-precision gear involute artefact.

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“…Therefore, this measurement is inefficient due to the rotation of the gear shaft. Pei et al [1] measured the relative distance change of gear tooth tips by a laser ranging sensor when the gear shaft rotates, then the gear shaft radial runout can be obtained by iteration of Jacobian gradient matrix. However, since the number of the gear teeth has influence on the sampling frequency of the sensor, the gear shaft can only rotate at low speed, which affects the efficiency of the straightening.…”

Section: Introductionmentioning

confidence: 99%