POSITIONAL MONITORING SYSTEMS AND METHODS FOR WELDING DEVICES

• US 20110220619A1
• Filed: 03/04/2011
• Published: 09/15/2011
• Est. Priority Date: 03/10/2010
• Status: Abandoned Application

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Mehn, Peter Donald
• Application Number:
  US13/041,205
• Publication Number:
  US 20110220619A1
• Time in Patent Office: Days
• US Class Current: 219/108
• CPC Class Codes: B23K 9/0953 using computing means
• CPC Class Codes: B23K 9/0956 using sensing means, e.g. optical
• CPC Class Codes: G01B 11/002 for measuring two or more coordinates
• CPC Class Codes: G01B 11/03 by measuring coordinates of points

Abstract

Welding systems including a welding device adapted to be utilized in a welding operation to establish a welding arc and a position detection system adapted to measure a parameter indicative of a position of the welding device are provided. Such welding systems may also include a controller adapted to receive feedback from the position detection system regarding the position of the welding device in at least two axes and to selectively transition control of the welding system between a first set of operational parameters and a second set of operational parameters based on changes in the received feedback during a welding operation.

Claims

1. A welding system, comprising:

a welding power source comprising power conversion circuitry configured to receive primary power and to convert the primary power to a weld power output for use in a welding operation;

a position detection system comprising at least one sensor configured to measure a parameter of a welding device indicative of a position of the welding device during the welding operation; and

a controller communicatively coupled to the position detection system and configured to receive feedback from the position detection system regarding the position of the welding device during the welding operation, to identify when the position of the welding device reaches a predefined transition point, and to control the welding power source to operate within a first set of weld parameters when the position of the welding device has not reached the predefined transition point and to operate within a second set of weld parameters when the position of the welding device reaches the predefined transition point.

2. The welding system of claim 1, wherein the predefined transition point comprises a preset angle corresponding to a direction of rotation of the welding device.

3. The welding system of claim 2, wherein the preset angle is between approximately 0°

and approximately 90°

.

4. The welding system of claim 1, wherein the at least one sensor comprises an accelerometer configured to measure a magnitude and direction of the acceleration of the welding device.

5. The welding system of claim 1, wherein the first set of weld parameters corresponds to a set of parameters suitable for welding in position, and the second set of weld parameters corresponds to a set of parameters suitable for welding out of position.

6. The welding system of claim 1, wherein the controller is configured to identify when the position of the welding device reaches a predefined transition point via hysteresis by comparing presently received feedback from the position detection system to previously received feedback from the position detection system.

7. A welding system, comprising:

a welding device configured to be utilized in a welding operation to establish a welding arc;

a position detection system configured to measure a parameter indicative of a position of the welding device; and

a controller configured to receive feedback from the position detection system regarding the position of the welding device in at least two axes and to selectively transition control of the welding system between a first set of operational parameters and a second set of operational parameters based on changes in the received feedback during a welding operation.

8. The welding system of claim 7, wherein the welding operation comprises periods in which a welding arc is established between the welding device and a workpiece and periods in which a welding arc is not established between the welding device and the workpiece.

9. The welding system of claim 7, wherein the welding device comprises at least one of a welding torch and a plasma torch.

10. The welding system of claim 7, wherein the first set of operational parameters is suitable for in position welding and the second set of operational parameters is suitable for overhead welding.

11. The welding system of claim 7, wherein the position detection system comprises a visual detection system comprises one or more optical devices configured to track the movement of the welding device.

12. The welding system of claim 7, further comprising a wire feeder configured to supply wire to the welding device.

13. The welding system of claim 7, further comprising a welding power supply configured to supply power to the welding device for establishing and maintaining the welding arc.

14. The welding system of claim 7, wherein the controller is further configured to resolve the angular orientation of the welding device based on the positional feedback from the position detection system regarding the position of the welding device in at least two axes.

15. The welding system of claim 7, wherein the position detection system is configured as a retrofit module configured to be coupled to the welding device and to communicate with the controller via a wireless link.

16. A controller for a welding system, configured to:

receive feedback regarding a position of a welding device;

resolve a position of the welding device in a planar coordinate system comprising at least two axes based on the received feedback;

monitor the position of the welding device in the planar coordinate system during a welding operation; and

indicate to at least one of a welding power source and an operator when the position of the welding device reaches a predefined transition point.

17. The controller of claim 16, wherein the controller is disposed in a welding wire feeder.

18. The controller of claim 16, further configured to alter one or more weld parameters when the position of the welding device reaches the predefined transition point.

19. The controller of claim 16, wherein the predefined transition point comprises an angle corresponding to an overhead welding position.

20. The controller of claim 16, wherein the received feedback comprises a magnitude and direction of acceleration of the welding device.

21. The controller of claim 16, wherein indicating when the position of the welding device reaches a predefined transition point comprises activating an indicator on a control panel, activating an indicator on a welding helmet, activating an indicator on a welding torch, or alerting a second welding device.