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Extraction Method of Feature Parameters of Cylindrical Shaft Parts

A technology of feature parameters and extraction methods, which is applied in the direction of measuring devices, instruments, and optical devices, can solve problems such as difficulty in meeting the high-precision requirements of cylindrical shaft parts, and achieve fast processing speed, accurate detection, and accurate feature parameters. Effect

Active Publication Date: 2016-12-21
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has fast processing speed and improved detection accuracy, but it is still difficult to meet the high-precision requirements of cylindrical shaft parts.

Method used

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  • Extraction Method of Feature Parameters of Cylindrical Shaft Parts
  • Extraction Method of Feature Parameters of Cylindrical Shaft Parts

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Embodiment Construction

[0035] The following introduces some of the possible embodiments of the present invention, which are intended to provide a basic understanding of the present invention, but are not intended to identify key or decisive elements of the present invention or limit the scope of protection. It is easy to understand that, according to the technical solution of the present invention, those skilled in the art may propose other alternative implementation manners without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0036] FIG. 1 is a schematic diagram of a scanning trajectory obtained by non-contact scanning on a cylindrical shaft part, and FIG. 2 is a schematic flowchart of a metho...

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Abstract

The invention provides a characteristic parameter extraction method for cylindrical axis parts, and belongs to the technical field of scanning detection of the axis parts. The method comprises two section projection processes. The second section projection process comprises the steps that a plurality of first circle centers obtained through the first section projection process are projected to an original ellipse plane along the first cylindrical axis, a plurality of corresponding intersection points are obtained, and then second section projection is conducted. Characteristic parameters extracted based on the characteristic parameter extraction method are more accurate and high in precision, and the extraction speed is high.

Description

technical field [0001] The invention belongs to the technical field of scanning detection of shaft parts, relates to extracting characteristic parameters of cylindrical shaft parts after scanning detection, and in particular to a method for extracting characteristic parameters of cylindrical fittings based on quadratic section projection. Background technique [0002] In the manufacturing industry, it is usually necessary to inspect and measure the manufactured parts to determine whether their shape parameters meet the specified requirements, and to judge or improve the accuracy of the manufacturing process. Among them, the cylindrical shaft part is a common part, which can be detected and measured by non-contact scanning method. Since the non-contact scanning method does not require physical gauges or measuring tools, it has the advantages of good environmental adaptability, no interference with work, fast detection speed, remote online operation, and suitable for assembly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/25G01B11/08
Inventor 田志松
Owner SAIC MOTOR
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