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Method, system and medium for monitoring cylindrical shape error with spatial correlation

A spatial correlation, cylindrical technology, applied in complex mathematical operations, geometric CAD, instruments, etc., can solve problems such as processing quality evaluation

Active Publication Date: 2021-02-12
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the spatial correlation between the measurement points, this method cannot evaluate the processing quality

Method used

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  • Method, system and medium for monitoring cylindrical shape error with spatial correlation
  • Method, system and medium for monitoring cylindrical shape error with spatial correlation
  • Method, system and medium for monitoring cylindrical shape error with spatial correlation

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Embodiment Construction

[0300] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0301] According to a monitoring method of a cylindrical shape error with spatial correlation provided by the present invention, comprising:

[0302] Surface measurement step: measure the surface of the cylinder to obtain the three-dimensional coordinate data of the measurement point;

[0303] Data processing step: according to the obtained three-dimensional coordinate data of the measuring point, the error value of the measuring point is obtained;

[0304] Spatial correlation judging step: according t...

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Abstract

The present invention provides a monitoring method, system and medium for cylindrical shape error with spatial correlation, comprising: surface measurement step: measuring the surface of the cylinder to obtain three-dimensional coordinate data of the measurement point; data processing step: according to the obtained measurement According to the three-dimensional coordinate data of the point, the error value of the measurement point is obtained; the spatial correlation judgment step: according to the obtained error value of the measurement point, it is judged whether the error value of the measurement point has spatial correlation, and the spatial correlation judgment result is obtained. The monitoring of the geometric error of the cylinder with spatial correlation proposed by the present invention can reflect the shape of the processing error more accurately, remove the influence of the spatial correlation on the measurement result, and effectively improve the recognition rate of unqualified products. The shortcomings of the traditional cylinder quality monitoring that cannot reflect the geometry of the cylinder and the spatial correlation caused by a large number of measurement points are improved.

Description

technical field [0001] The invention relates to the technical field of quality monitoring of cylindrical parts, in particular to a method, system and medium for monitoring cylindrical shape errors with spatial correlation. Background technique [0002] Shape and position error is an important control object of mechanical parts in modern manufacturing, which directly affects the quality of products. The shape error of a cylinder is an important indicator of high-precision rotating parts. The improvement of manufacturing precision puts forward higher requirements for the accurate measurement of cylindrical shape error. The accuracy index of the traditional cylindrical shape error is cylindricity, and the measurement methods include two-point method, three-point method, three-coordinate measurement method, data acquisition instrument connection dial indicator measurement method, etc. These methods consider the actual cylindrical surface to determine the minimum contained area...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/17G06F17/10G06F17/11G01B21/20
CPCG06F17/10G06F17/11G01B21/20G06F30/20
Inventor 杜世昌赵晨邓亚飞李贵龙
Owner SHANGHAI JIAOTONG UNIV
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