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Bearing defect detecting device and bearing defect detecting method

A technology for flaw detection devices and bearings, which is applied to measuring devices, material analysis through optical means, instruments, etc., can solve the problems of low efficiency of flaw detection and bearing flaw detection, and achieve improved flaw detection efficiency, low cost, and measurement The effect of high accuracy

Active Publication Date: 2019-10-18
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the flaw detection efficiency of existing bearings is low, and it is impossible to realize comprehensive and multi-angle flaw detection of bearings, the present invention provides a bearing defect detection device and a bearing defect detection method
[0006] The present invention solves the technical problem that the flaw detection efficiency of existing bearings is low and cannot realize omnidirectional and multi-angle flaw detection and detection of bearings through the transportation component, detection component and data processing module, and obtains not only all-round, multi-angle Carry out flaw detection on bearings from different angles, and at the same time improve the technical effect of bearing flaw detection efficiency

Method used

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  • Bearing defect detecting device and bearing defect detecting method
  • Bearing defect detecting device and bearing defect detecting method
  • Bearing defect detecting device and bearing defect detecting method

Examples

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Embodiment 1

[0039] Please combine figure 1 , The bearing defect detection device includes a frame 5, a transport assembly, a detection assembly, a drive assembly and a data processing module.

[0040] The frame 5 includes a housing 16 and a support 17 . The housing 16 is a rectangular box as a whole. In other embodiments, the housing 16 can also be a cylindrical box as a whole. As long as the stability of the overall structure of the housing 16 is not affected, other structures can also be used. The interior of the housing 16 is separated by an upright partition 2 19 to form a transmission area (not marked) and a detection area (not marked). The top of the detection area of ​​the housing 16 is separated by a horizontal partition 18 to form a driven area (not shown).

[0041] In this embodiment, the top of the transmission area communicates with one side of the driven area. There are openings on the casing 16 on both sides and bottom of the detection area.

[0042] Please combine figu...

Embodiment 2

[0071] Please combine image 3 The difference between this embodiment 2 and embodiment 1 is that this embodiment 2 provides a bearing defect detection method. The bearing defect detection method is applied to a bearing defect detection device, and the bearing defect detection method includes the following steps:

[0072] Step S1: When the bearing to be tested is transported to the bottom of the mounting frame, control the driving motor 1 to stop and the driving motor 2 to start;

[0073] Step S2: drive the CCD camera to take the machine vision image of the bearing to be tested; drive the eddy current sensor to detect the impedance change value of the bearing to be tested;

[0074] Step S3: Drive the image acquisition card to collect the machine vision image shot by the CCD camera to obtain the original image;

[0075] Step S4: performing filtering, sharpening and feature extraction on the original image;

[0076] Step S5: Using visionscape software to identify the original ...

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Abstract

The invention relates to the field of detecting equipment, and discloses a bearing defect detecting device and a bearing defect detecting method. The bearing defect detecting device includes a rack, atransportation component, a detection component, a driving component, and a data processing module; the transportation component is used for transporting a bearing to be detected to the rack; the detection component is used for detecting the bearing to be detected transported to the rack; the data processing module is used for collecting a machine vision image to detect the defect position of thebearing to be detected; and the data processing module is further used for determining whether the impedance change value is within a predetermined range, and driving the transportation component totransport the next bearing to be detected if the impedance change value is within the predetermined range. According to the invention, an eddy current sensor and a CCD camera are used for flaw detection of the bearing; the eddy current sensor can perform measurement without touching the bearing to be detected, the measurement accuracy is high, and the cost is low; and the combination of the CCD camera and the machine vision method can ensure high-precision detection, replace human eye recognition and reduce the detection error.

Description

technical field [0001] The invention relates to the field of detection equipment, in particular to a bearing defect detection device and a bearing defect detection method. Background technique [0002] After the manufacturing process of the bearing, in order to check the defective rate, it is necessary to detect the hardness of the inner and outer rings of the bearing and the cracks and scratches on the surface of the inner and outer rings of the bearing, that is, to detect the flaw detection hardness of the bearing. The flaw detection hardness of existing bearings is usually Hardness testing equipment and flaw detection equipment are used to manually detect bearings. This detection method is inefficient and labor-intensive. In manual detection, due to the influence of human factors, the detection range is not comprehensive, and detection blind spots will appear. , thus affecting the testing quality of the bearing. [0003] In the prior art, one of the traditional bearing f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/892G01N27/90G01N27/9093
CPCG01N21/892G01N27/9026
Inventor 洪占勇郑书林杨永跃周成武
Owner HEFEI UNIV OF TECH