Unlock instant, AI-driven research and patent intelligence for your innovation.

A welding seam tracking system and method based on structured light vision sensing

A visual sensing and tracking system technology, applied in the field of industrial manufacturing, can solve the problems of poor adaptability, incompatible large-scale promotion, high cost, etc., and achieve the effect of low cost, simple structure and strong adaptability

Active Publication Date: 2021-11-26
GUANGDONG UNIV OF TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of the traditional PC-based machine vision system in the prior art, but its cost is too high, its adaptability is poor, and it is not suitable for large-scale promotion, the present invention provides a weld seam tracking system and method based on structured light vision sensing

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
  • A welding seam tracking system and method based on structured light vision sensing
  • A welding seam tracking system and method based on structured light vision sensing
  • A welding seam tracking system and method based on structured light vision sensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 as well as Figure 4 As shown, a seam tracking system based on structured light visual sensing includes a gantry 4, a welding table 5 and a welding torch 6, and is characterized in that the system includes a laser vision sensor 3, and a seam tracking deviation axis 2 and the host computer 1; the laser vision sensor 3 is installed on the welding seam tracking and deviation correction axis 2, and the welding seam tracking and deviation correction axis 2 is installed on the gantry 4; the welding seam tracking and deviation correction axis 2 is installed on There is a welding torch 6; the laser vision sensor 3 and the welding seam tracking and deviation correction axis 2 are respectively connected with the host computer 1;

[0057] The laser vision sensor 3 is used to emit laser light onto the weld seam and collect the image of the weld seam, and transmit the image to the upper computer 1;

[0058] The host computer 1 is used to analyze the collected images...

Embodiment 2

[0062] Such as figure 1 , figure 2 as well as image 3 As shown, this embodiment provides a seam tracking method based on structured light vision sensing, the method is based on the above-mentioned system, and includes the following steps:

[0063] Step S1: the laser vision sensor 3 collects the image of the weld seam, and transmits the collected image to the host computer 1;

[0064] Step S2: The host computer 1 preprocesses the collected images, and extracts the centerline of the weld seam and the feature points of the centerline from the preprocessed image;

[0065] Step S3: The upper computer 1 performs deviation calculation based on the center line and the feature points of the center line, and obtains the deviation between the welding torch 6 and the center of the weld;

[0066] Step S4: The host computer 1 transmits the deviation amount to the seam tracking deviation correction axis 2, and the welding seam tracking deviation correction axis 2 adjusts the position of...

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

The present invention relates to the field of industrial manufacturing, and more specifically, to a seam tracking system and method based on structured light vision sensing. The system includes a gantry, a welding table and a welding torch, and is characterized in that the system includes a laser vision sensor welding seam tracking deviation correction axis and a host computer; the method includes the following steps: collecting the welding seam by the laser vision sensor image, and transmit the weld image to the host computer, the host computer processes the weld image, extracts the center line of the weld and the feature points of the center line, and calculates the deviation between the welding torch and the center of the weld according to the feature points of the center line. According to the deviation, the movement of the welding seam tracking and rectifying axis is controlled to realize the real-time tracking of the welding seam. The invention has simple structure, strong adaptability, low manufacturing cost and is suitable for large-scale popularization.

Description

technical field [0001] The present invention relates to the field of industrial manufacturing, and more specifically, to a seam tracking system and method based on structured light vision sensing. Background technique [0002] Welding is an important processing technology in the manufacturing industry, which has many characteristics such as harsh working conditions, heavy workload and high quality requirements. Arc welding and laser welding are relatively common welding processes in the welding industry. It is an important means of welding automation to realize automatic welding control with arc and laser beam as the controlled object. Among them, accurate seam tracking is the premise to ensure the welding quality, that is, the laser beam or arc must be controlled throughout the welding process so that it is always aligned with the seam, otherwise it will cause scrap. To this end, it is necessary to accurately and automatically detect the position of the weld seam and reali...

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 Patents(China)
IPC IPC(8): B23K9/127
CPCB23K9/1274
Inventor 高向东马波黄怡洁季玉坤
Owner GUANGDONG UNIV OF TECH