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Seamless steel tube diameter measurement and surface defect detection system

A seamless steel pipe and defect detection technology, which is applied in the direction of measuring devices, instruments, and material analysis through optical means, to achieve satisfactory detection results, increase stability and expandability

Pending Publication Date: 2021-07-23
浙江增诚钢管有限公司
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  • Description
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Problems solved by technology

The market demand for seamless steel pipes is increasing, and the traditional seamless steel pipe detection methods are difficult to meet the production requirements of enterprises

Method used

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  • Seamless steel tube diameter measurement and surface defect detection system
  • Seamless steel tube diameter measurement and surface defect detection system
  • Seamless steel tube diameter measurement and surface defect detection system

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Embodiment Construction

[0027] Hereinafter, the present invention is described in more detail to facilitate understanding of the present invention.

[0028] Such as figure 1 and figure 2 As shown, the seamless steel pipe diameter measurement and surface defect detection system of the present invention includes a stand 1, a first guide rail 3, a first strip light source 4, a second strip light source 5, a parallel light source 6, and an area array camera 7 , the second guide rail 8, the auxiliary shaft 9, the drive shaft 10, the display screen 11, the image processing device 12 and the motor 13, the first guide rail 3 is arranged on the top of the stand 1; the first strip light source 4 , the second strip light source 5 and the area array camera 7 are all installed on the first guide rail 3 and can slide left and right along the first guide rail; the auxiliary rotating shaft 9 is rotatably installed on one side of the stand, and the driving rotating shaft 10 It is rotatably installed on the other s...

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Abstract

The invention relates to a seamless steel pipe diameter measurement and surface defect detection system which comprises a rack, a first guide rail, a first strip-shaped light source, a second strip-shaped light source, a parallel light source, an area-array camera, a second guide rail, an auxiliary rotating shaft, a driving rotating shaft, a display screen, an image processing device and a motor, the image processing device counts a first reference number of times, a second reference number of times, a first reference total number of times N1, and a second reference total number of times N2, wherein the first reference number of times is the sum of the first reference numbers of the plurality of hypothetical mark lines; the second reference total number of times is the sum of the second reference number of times of the plurality of hypothetical mark lines; the image processing device calculates the first reference total frequency N1 and divides the first reference total frequency N2 by the second reference total frequency N2, and if N1 / N2 is larger than or equal to V, it is determined that defects exist; and if N1 / N2 < V, it is determined that no defect exists, V being a constant specified by the technician according to the allowable defect size.

Description

technical field [0001] The invention relates to the technical field of detection of seamless steel pipes, in particular to a system for measuring the diameter of seamless steel pipes and detecting surface defects. Background technique [0002] Seamless steel pipe is a highly practical cross-section steel, which has great demand in production and life, such as petroleum, boilers, power stations, ships, machinery manufacturing, automobiles, aviation, aerospace, energy, geology, construction and military industry and other fields. The diameter and surface defect information of seamless steel pipes are important criteria for judging the quality of seamless steel pipes, and are also the most concerned parts of enterprises and customers. The market demand for seamless steel pipes is increasing, and the traditional seamless steel pipe detection methods are difficult to meet the production requirements of enterprises. Contents of the invention [0003] The present invention aims...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/08G01N21/952G01N21/01
CPCG01B11/08G01N21/01G01N21/952
Inventor 王建国郑宝弟郑鸿达
Owner 浙江增诚钢管有限公司
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