One-dimensional non-uniform gear morphology point cloud precise registration method
An accurate registration and non-uniform technology, applied in the field of data processing, can solve the problems of large registration errors of discrete sequences
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[0026] to combine Figure 1 to Figure 4 In this embodiment, the precise registration method of one-dimensional non-uniform gear shape point cloud is realized by the following steps:
[0027] Step 1: Quantity registration between the measured gear sequence and the virtual gear sequence;
[0028] Assuming that the total sampling number N of a certain laser scanning involute straight internal gear is 2519, the sampling interval Δt(n) is non-uniform, and the sampling number n is used as an independent variable to obtain the measured gear sequence x(n), combined with figure 2 ;
[0029] It is known that the number of gear teeth z is 85, the modulus m is 3.27742, the pressure angle α at the indexing circle is 25°, and the addendum height coefficient h a * is 0.8, head clearance coefficient c * is 0.3. According to the gear design parameters, the gear equation is generated as follows:
[0030] Q ( t ) = ...
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