Method, device and system for automatically identifying welding seam position based on square tube

A technology of automatic identification and welding seam position, applied in welding equipment, laser welding equipment, image data processing, etc.

Active Publication Date: 2019-06-14
济南奥图科技有限责任公司
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention innovatively proposes a method, device and system based on the automatic identification of the weld position of square pipes, which solves the time-consuming and labor-intensive problems of manual judgment of the weld seam of square pipes and the low efficiency of positioning and rotation. problems, and avoid the errors in manual observation and judgment, improve the accuracy of square tube processing on CNC laser tube cutting machines, improve processing efficiency, and reduce labor costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method, device and system for automatically identifying welding seam position based on square tube
  • Method, device and system for automatically identifying welding seam position based on square tube
  • Method, device and system for automatically identifying welding seam position based on square tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1Shown, the present invention provides a kind of method based on the automatic identification of square pipe weld position, comprising:

[0049] S1, the image acquisition device collects and saves the picture of the cross section of the square tube;

[0050] S2, the image processing device divides the collected pictures into nine equal parts and numbers them, and selects at least four pictures containing the inner sides and saves them respectively;

[0051] S3, the image processing device separately obtains the contour length and / or the total contour area of ​​the weld in at least four selected pictures containing the internal side, according to the contour length and / or the total contour area of ​​the weld in the picture Determines the number of the picture where the weld is located.

[0052] In step S1, the picture of the cross-section of the square pipe is collected at least including four sides inside the square pipe. In the embodiment of the presen...

Embodiment 2

[0059] Such as image 3 As shown, step S3 in the technical solution of the present invention based on a method for automatic identification of square pipe weld positions specifically includes:

[0060] S31. The image processing device performs smoothing processing on at least four selected pictures containing internal sides by a median filter method;

[0061] S32. Perform grayscale processing on at least four smoothed selected pictures including interior sides;

[0062] S33, performing dilation processing on at least four selected images including the inner sides after the grayscale processing;

[0063] S34, setting the first grayscale threshold, comparing the grayscale values ​​of at least four selected pixels of the picture including the inner side after the expansion process with the set first grayscale value, and selecting a value larger than the set first grayscale value Selected at least four pixel points of the picture containing the inner side after dilation processi...

Embodiment 3

[0078] Such as Figure 4 Shown, the present invention also provides a kind of method based on the automatic identification of square pipe weld position, comprising:

[0079] S1, the image acquisition device collects and saves the picture of the cross section of the square tube;

[0080] S2, the image processing device divides the collected pictures into nine equal parts and numbers them, and selects at least four pictures containing the inner sides and saves them respectively;

[0081] S3, the image processing device separately obtains the contour length and / or the total contour area of ​​the weld in at least four selected pictures containing the internal side, according to the contour length and / or the total contour area of ​​the weld in the picture Determine the number of the picture where the weld is located;

[0082] S4, according to the number of the picture where the weld is located, the angle of the weld of the square tube is judged according to the corresponding rule...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

In order to solve the problems existing in the prior art, the invention innovatively provides an automatic identification method based on a square tube weld joint position, and the method comprises the steps: image collection equipment collects and stores pictures of the cross section of a square tube; the image processing equipment equally divides the collected pictures into nine blocks, numbersthe nine blocks, and selects at least four pictures containing internal side surfaces to be stored respectively; the image processing equipment respectively obtains the contour length of the welding seam and/or the total contour area of the welding seam in the at least four selected pictures containing the inner side surfaces; determining the number of the picture where the weld joint is located according to the contour length of the weld joint in the picture and/or the total contour area of the weld joint. The invention further provides a device and a system for automatically identifying theposition of the welding seam based on the square tube. The problems that time and labor are wasted and the positioning and rotating efficiency is low when square pipe welding seams are judged manuallyare solved, errors existing in the manual observation and judgment process are avoided, the accuracy of square pipe machining on the numerical control laser pipe cutting machine is improved, the machining efficiency is improved, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the fields of machine vision and automatic control, in particular to a method, device and system based on automatic identification of the welding seam position of a square pipe. Background technique [0002] At present, with the development of image processing technology, it is possible to process images by installing programming software and machine vision libraries in PCs, and various shapes on the images can be detected through various image processing methods. [0003] When processing square pipes on a CNC laser pipe cutting machine, the position of the processed shape needs to be determined according to the position of the weld seam when the pipe is cut. The position of the weld seam of each pipe is uncertain in the pipe bundle, so it is necessary to judge the weld seam before processing On which side of the square tube. [0004] In the current technical application, it is necessary to observe the position of the weld sea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/62G06T7/73G06T5/00G06T5/30B23K26/70
Inventor 杨绪广毕延勇李树斌
Owner 济南奥图科技有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap