3D Involute gear evaluation – Supplement: Measurements in double-flank contact

Stein, Martin; Härtig, Frank

doi:10.1016/j.measurement.2021.109079

Cited by 6 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on previous work that introduced a dedicated involute gear coordinate system [20], which was used to describe measurements in double flank contact [21] as well as profile and helix measurements [22], this article presents a universal model for helical machine elements. Defining a general class of helical machine elements allows metrological methods to be standardized for both gears and screw threads, as well as for any other geometry having an arbitrary transverse profile helically wound about the workpiece axis.…”

Section: Introductionmentioning

confidence: 99%

A Unified Theory for 3D Gear and Thread Metrology

2021

Self Cite

View full text Add to dashboard Cite

We propose a unified theory for the metrological treatment of helical machine elements such as cylindrical and conical gears, worms, and screw threads. The main idea is to introduce a universal 3D geometry model for threaded components that provides for distinct parameterization using a unique set of geometry parameters and that offers and a functional description of the transverse profile. Using modern 3D coordinate measuring technology, a holistic evaluation algorithm yields the actual geometry as the result of a high dimensional best-fit procedure and form deviations as corresponding residuals. All determinants and evaluation parameters can then be calculated from the set of actual geometry parameters. By applying certain constraints to the model to be fitted, the novel method can be reduced to the established 2D methods and hence meets demands for the comparison of the two procedures. The results of the novel approach have proven to be very stable and they enable the evaluation of areal measurements with no loss of information.

show abstract

Section: Introductionmentioning

confidence: 99%