US 11,897,060 B2
Systems and methods for welding torch weaving
Lance F. Guymon, Fort Collins, CO (US); Adewole A. Ayoade, Streetsboro, OH (US); Floyd M. Thompson, Jr., Tomball, TX (US); and Edward D. Hillen, Painesville, OH (US)
Assigned to LINCOLN GLOBAL, INC., Santa Fe Springs, CA (US)
Filed by Lincoln Global, Inc., Santa Fe Springs, CA (US)
Filed on May 4, 2021, as Appl. No. 17/307,040.
Application 17/307,040 is a continuation in part of application No. 16/161,255, filed on Oct. 16, 2018, granted, now 11,548,088.
Claims priority of provisional application 62/592,072, filed on Nov. 29, 2017.
Prior Publication US 2021/0252624 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B23K 9/095 (2006.01); B23K 31/12 (2006.01); B23K 9/09 (2006.01); B23K 9/02 (2006.01)
CPC B23K 9/0953 (2013.01) [B23K 9/0216 (2013.01); B23K 9/091 (2013.01); B23K 31/125 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An automated electric arc welding system, comprising:
a torch manipulator;
a welding torch extending from the torch manipulator;
a motion controller operatively connected to the torch manipulator to control movement of the welding torch along a weld path in a direction of a weld seam during a welding operation, and simultaneously weaving movements of the welding torch back and forth across the weld seam at a weave frequency and a weave period; and
a welding power supply operatively connected to the welding torch to control a welding waveform, and operatively connected to the motion controller for communication therewith, wherein the welding waveform includes a pulse current portion, and a low current portion having a lower current level than the pulse current portion, and wherein the welding power supply is configured to sample a plurality of weld parameters during a sampling period of the welding operation and form an analysis packet, and process the analysis packet to generate a weld quality score,
wherein the welding power supply obtains the weave frequency or the weave period and automatically adjusts the sampling period for forming the analysis packet based on the weave frequency or the weave period such that the sampling period equals the weave period,
wherein the automated electric arc welding system includes through arc seam tracking logic that tracks the weld seam and calculates corrections to the weld path,
wherein the through arc seam tracking logic calculates the corrections to the weld path from welding current data classified as corresponding to the pulse current portion of the welding waveform, and welding current data classified as corresponding to the low current portion of the welding waveform, provided by the welding power supply, and
wherein when calculating the corrections to the weld path, the through arc seam tracking logic weighs said welding current data classified as corresponding to the pulse current portion of the welding waveform more heavily than said welding current data classified as corresponding to the low current portion of the welding waveform.