B4.3 - Optical Sensor system for 3D measurements on large gears

Auerswald, Matthias Marcus; Freyberg, Axel von; Fischer, A.

doi:10.5162/sensor2017/b4.3

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Experimental verification indicated that this method allowed 3D gear measurements with good repeatability and accuracy. Matthias et al [6] constructed a 3D surface inspection device for measuring large gears. They used a laser line triangulation sensor to inspect the tooth surface of large gears and revealed the problem of multiple reflections of the laser line in the tooth root region during the measurement process, which adversely affected accuracy.…”

Section: Introductionmentioning

confidence: 99%

Research on the Construction of a Digital Twin Model for a 3D Measurement System of Gears

Li,

Guo,

Guo

et al. 2023

IEEE Access

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As an advanced metrology technology, three-dimensional (3D) gear measurement using linear laser techniques is susceptible to the influence of multiple coupling factors. Consequently, there exists an urgent need for new principles to effectively decouple the effects of each factor. Digital twins realize the connection between physical and virtual spaces. By fusing multi-source data from the existing system, a highfidelity digital model is established to realize the simulation of the gear measurement process in this paper. Moreover, simulation of the light reflections of tooth flanks and the dynamic error coupling process can effectively clarify the coupling mechanism of measurement errors. This paper presents a method of constructing a digital twin model of a 3D measurement system for gears and realizes the expression of the actual measurement processing. It provides the foundation for subsequently studying the reflection characteristics of the tooth flank at different incident angles and searching for the optimum incident attitude of the line structured light sensor.INDEX TERMS digital twin, model construction, multi-source data, gear measurement.

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Section: Introductionmentioning

confidence: 99%

Research on the Construction of a Digital Twin Model for a 3D Measurement System of Gears

Li,

Guo,

Guo

et al. 2023

IEEE Access

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“…A typical gear measurement procedure measures one profile on both flanks of three or four out of all the teeth, measuring one pitch point on each flank, and evaluating the deviations according to the standards [17,18]. Recently, various optical measurement methods have enabled a holistic gear measurement approach [19] and areal evaluation [20][21][22]. Essentially, the optical methods enable a quick acquisition of the whole gear geometry, which can be used to comprehensively characterise the gears' geometrical quality.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Areal Geometric Quality Characterisation of Injection Moulded Thermoplastic Gears

et al. 2022

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Injection moulding is currently the most widely employed production method for polymer gears. Current standardised gear metrology methods, which are based on metal gear inspection procedures, do not provide the key information regarding the geometric stability of injection moulded gears and are insufficient for a thorough gear inspection. The study developed novel areal quality parameters, along with a so-called moulding runout quality parameter, with a focus on the injection moulding method. The developed parameters were validated on twenty-nine gear samples, produced in the same moulding tool using various processing parameters. The gears were measured using a high-precision structured-light 3D scanner. The influence of injection moulding process parameters on the introduced novel quality parameters was investigated. The developed moulding runout quality parameter proved to be effective in evaluating the shrinkage that can occur in the injection moulding process. The novel moulding runout parameter returned an average value of −21.8 μm in comparison to 29.4 μm exhibited by the standard parameter on all the gears, where the negative value points directly to mould shrinkages. The rate of cooling was determined to be the most influential factor for the shrinkage of the gear. The developed areal parameters demonstrated to be advantageous in characterising the deviations on the teeth more comprehensively.

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