IP Library › Granted Patent US 9,108,264
Granted Patent B2
US 9,108,264 · App. 14/589,716 · Granted Aug 18, 2015

Systems and methods for diagnosing secondary weld errors

Inventors: Robert Raimund Davidson (New London, WI); Richard J. Schuh (Freedom, WI); Anthony Joseph Kowaleski (Manawa, WI); Thomas Allen Bunker (DePere, WI); Nicholas James Dessart (Appleton, WI); Bruce A. Casner (Neenah, WI)
Assignee: ILLINOIS TOOL WORKS INC.
B23K9/10B23K31/12B23K9/0953B23K9/28B23K9/323
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Quick Facts
Patent No.
US 9,108,264
App. No.
14/589,716
Granted
Aug 18, 2015
Kind
B2
Abstract

A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range.

Claims (26)

1. A welding system comprising:

a welding power supply;

a fixture configured to secure a workpiece in a welding location;

a ground cable coupled to the welding power supply and at least one of the fixture and the workpiece; and

at least one test contact disposed on at least one of the fixture and the workpiece for determining at least one of a weld cabling parameter, a weld torch parameter, a rotary ground parameter, a fixturing parameter, and a workpiece parameter.

2. The welding system of claim 1 , wherein the test contact comprises one or more projections configured to receive a welding torch tip.

3. The welding system of claim 1 , wherein the test contact comprises one or more apertures configured to receive one or more securement members.

4. The welding system of claim 1 , wherein the welding power supply comprises a processor configured to execute one or more algorithms to control a welding process of the welding power supply, wherein the one or more algorithms are configured to:

determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter acquired via shorting of a welding torch tip to the weld secondary component via the test contact;

compare the determined value to a reference value range; and

alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range.

5. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a negative weld lead length, and to determine the referenced value range based on the negative weld lead length.

6. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a negative weld lead size, and to determine the referenced value range based on the negative weld lead size.

7. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a positive weld lead length, and to determine the referenced value range based on the positive weld lead length.

8. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a positive weld lead size, and to determine the referenced value range based on the positive weld lead size.

9. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a welding torch manufacturer, and to determine the referenced value range based on the welding torch manufacturer.

10. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a welding torch model number, and to determine the referenced value range based on the welding torch model number.

11. The welding system of claim 4 , wherein the one or more algorithms are configured to receive an input from the user regarding a welding torch length, and to determine the referenced value range based on the welding torch length.

12. The welding system of claim 4 , wherein the reference range value is determined based on a measured value of an initial drop in the weld secondary parameter across the weld secondary component based on the sensed parameter at a prior time.

13. The welding system of claim 4 , wherein the weld secondary parameter is at least one of a voltage, a current, a power, a resistance, a conductance, and an inductance.

14. The welding system of claim 4 , wherein the weld secondary component is weld cabling.

15. The welding system of claim 4 , wherein the weld secondary component is a welding torch.

16. The welding system of claim 4 , wherein the weld secondary component is a rotary ground.

17. The welding system of claim 4 , wherein the weld secondary component is the fixture.

18. The welding system of claim 4 , wherein the weld secondary component is the workpiece.

19. The welding system of claim 4 , wherein the one or more algorithms are configured to store the determined value in the weld secondary parameter to a memory.

Continuity (5)
Division 14064946 · Oct 28, 2013
Division 13747150 · Jan 22, 2013
Division 12813316 · Jun 10, 2010
Provisional Application 61186175 · Jun 11, 2009
Related Publication 20150114939A1 · Apr 30, 2015