Trajectory Tracking Method for Welding

A trajectory tracking and trajectory technology, which is applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems affecting the control accuracy and stability, and the accuracy of measurement data, so as to achieve high-precision control and tracking, and stable and reliable data Effect
CN110773841BActive Publication Date: 2021-12-03ZHEJIANG JINHUA JUNENG ELECTRONICS TECH
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG JINHUA JUNENG ELECTRONICS TECH
Publication Date
2021-12-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a welding track tracking method. A single laser beam is used to irradiate the weld along the length direction of the weld, and the laser beam is reflected to the photosensitive element through the weld and the areas on both sides of the weld to generate corresponding electrical signals. Using the measurement principle of single-point laser triangulation, calculate the distance between the laser generating device and the welding plate, and measure the average value of the entire laser beam distance, and judge whether the welding track is offset by the average value of the distance; when the welding track exists When offset, the signal is fed back to the position adjustment mechanism on the welding machine to adjust the welding track. The present invention utilizes the height difference when the ranging laser beam moves from one side of the weld to the other side, resulting in different average values ​​and a linear change interval, and judges the offset of the welding track according to the average height difference, which is in the process of measurement It will not be affected by external light, especially the intensity of welding arc light, the measured data is stable and reliable, and has the actual application conditions of welding tracking.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a trajectory tracking method for welding, in particular to a laser tracking method for welding trajectory. Background technique

[0002] For the construction of Mark Ⅲ membrane LNG ship, it is necessary to implement high-precision automatic welding for a large number of lap welds of corrugated plates with a thickness of only 1.2mm. A high-precision weld seam tracking system with a control accuracy of more than 0.1mm is required.

[0003] At present, the seam tracking measurement is to detect the offset in real time when the seam is being welded, and then transmit the measurement information of the seam to the welding actuator, and adjust the position of the welding torch or seam through the deviation correction mechanism, so that the two always maintain Appropriate relative positional relationship. Existing high-precision trajectory tracking methods for welding are generally divided into two types: contact and non-contact. Am...

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