Virtual welding system

• US 9,011,154 B2
• Filed: 02/02/2012
• Issued: 04/21/2015
• Est. Priority Date: 07/10/2009
• Status: Active Grant

• Current Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Original Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Inventors: Kindig, Michael A., Leach, Jason, Aditjandra, Antonius, Postlethwaite, Deanna, Bennett, Matt
• Primary Examiner(s): Utama, Robert J
• Application Number:
  US13/364,489
• Publication Number:
  US 20120189993A1
• Time in Patent Office: 1,174 Days
• Field of Search: 434/234, 345/419
• US Class Current: 434/234
• CPC Class Codes: B23K 9/09 Arrangements or circuits for arc welding with pulsed current or voltage
• CPC Class Codes: B23K 9/095 Monitoring or automatic control of welding parameters
• CPC Class Codes: G09B 19/24 Use of tools
• CPC Class Codes: G09B 25/02 of industrial processes; of machinery
• CPC Class Codes: G09B 9/00 Simulators for teaching or training purposes for the use of weapons F41; computing aspects G06; protocols for games, networked simulations or virtual reality H04L67/131

Abstract

A virtual reality welding process and system is described which includes a programmable processor based subsystem, a spatial tracker operatively connected to the programmable processor based subsystem, a mock welding tool capable of being spatially tracked by the spatial tracker in which the mock welding tool includes two or more adapters. Each adapter emulates the real-world appearance of a particular weld type and interfaces with a base that is removably coupled to each of the two or more adapters. The base has one or more sensors to determine spatial location relative to the spatial tracker. The programmable processor based subsystem executes an appropriate instruction set associated with each adapter to render a display to the user on a face-mounted display device commensurate for each of the two or more adapters.

Claims

1. A virtual welding system, comprising:

a programmable processor based subsystem;

a spatial tracker operatively connected to the programmable processor based subsystem;

a mock welding tool capable of being spatially tracked by the spatial tracker, the mock welding tool includes,

two or more adapters, wherein each adapter emulates the real-world appearance of a particular weld type; and

a base that is removably coupled to each of the two or more adapters, said base comprising one or more sensors to determine spatial location relative to said spatial tracker; and

further wherein

each of said two or more adapters interfacing with said base, and

said programmable processor based subsystem executing an appropriate instruction set associated with each adapter to render a display on a face-mounted display device commensurate for each of said two or more adapters.

2. The virtual welding system of claim 1, further including:

one or more sensors disposed within the base; and

a magnet that has a spatial location, which is tracked by the one or more sensors to identify the relative location of the mock welding tool to the magnet.

3. The virtual welding system of claim 2, further including:

a welding coupon having at least one surface and simulating a real world part to be welded, the welding coupon is disposed a known distance from the magnet, the welding coupon having at least one surface and simulating a real-world part to be welded, wherein said at least one surface of said welding coupon is simulated in said virtual reality space as a double displacement layer including a solid displacement layer and a puddle displacement layer, wherein said puddle displacement layer is capable of modifying said solid displacement layer.

4. The virtual welding system of claim 3, further including:

a stand which is utilized to support the magnet and the welding coupon in a predetermined spatial relationship.

5. The virtual welding system of claim 1, further including:

a helmet that is worn by a user; and

a face mounted display device disposed within the helmet, which displays real time molten metal fluidity and heat dissipation characteristics of the simulated weld puddle to provide real time visual feedback to a user of the mock welding tool when displayed on the face mounted display device, allowing the user to adjust her or maintain a welding technique in real time in response to the real time visual feedback.

6. The system of claim 5, wherein

the helmet location is determined by the spatial tracker and communicated to the programmable processor based subsystem.

7. The system of claim 6, further including:

one or more sensors disposed within the helmet to track the spatial location of the helmet relative to the magnet.

8. The system of claim 7, wherein

the sensors are one or more of a capacitance sensor, a piezoelectric sensors, an infrared proximity sensor, a hall effect sensor, an eddy current sensor, an inductive sensor, and an ultrasonic sensor.

9. A mock welding tool used within a virtual welding system, comprising:

two or more adapters, each adapter emulates the physical characteristics of a particular weld type; and

a base which is removably coupled to each of the two or more adapters, the base identifies a real time spatial location of the mock welding tool relative to a datum location, said base comprising one or more sensors to determine spatial location relative to said spatial tracker; and

further wherein

each of said two or more adapters interfacing with said base, and

a programmable processor based subsystem executing an appropriate instruction set associated with each adapter to render a display on a face-mounted display device commensurate for each of said two or more adapters.

10. The system of claim 9, wherein

the datum point is a welding coupon having at least one surface in simulating a real world part to be welded, the welding coupon having at least one surface and simulating a real-world part to be welded, wherein said at least one surface of said welding coupon is simulated in said virtual reality space as a double displacement layer including a solid displacement layer and a puddle displacement layer, wherein said puddle displacement layer is capable of modifying said solid displacement layer.

11. The system of claim 10, further including:

a magnet that is disposed in a predetermined location relative to the welding coupon.

12. The system of claim 11, further including:

a stand that fixes the spatial location of the magnet relative to the welding coupon.

13. The system of claim 12, further including:

one or more sensors that are disposed within the base, the one or more sensors determine the location of the base relative to the magnet.

14. The system of claim 13, wherein the sensors communicate their locations to the programmable processor based subsystem.

15. The system of claim 14, further including:

an interface disposed at a first end of the base, the interface facilitates the removable mechanical coupling with each of the one or more adapters.

16. The system of claim 15, wherein

the interface includes at least one first mechanical feature that is complimentary to at least one second mechanical feature within the adapter to facilitate removable mechanical coupling of each adapter to the base.

17. The system of claim 9, wherein

the base further includes a trigger that is used to indicate an active weld state within a virtual welding system.

18. The system of claim 9, wherein

the trigger is engaged via a sleeve within each adapter, the sleeve is mechanically manipulated to initiate an active weld state by a user via the adapter.

19. A method of using a mock welding tool within a virtual welding system, comprising:

removably connecting a first adapter to a base, the first adapter is associated with a first weld type;

identifying said first adapter to a programmable processor-based subsystem to allow said system to load and execute an appropriate instruction set associated with said first adapter and rendering said instruction set as a display on a face-mounted display device;

removing the first adapter from the base; and

removably connecting a second adapter to the same base, the second adapter is associated with a second weld type;

identifying said second adapter to said programmable processor-based subsystem to allow said system to load and execute an appropriate instruction set associated with said second adapter and rendering said instruction set as a display on a face-mounted display device;

wherein the base includes a sensor that determines the spatial location of the mock welding tool relative to a welding coupon, wherein the location of the base is updated in real time to a display.

20. The method of claim 19, further including:

a magnet disposed at a known location relative to the welding coupon, wherein the sensor determines the location of the magnet and computes the location of the welding coupon based at least upon the location of the magnet.

21. The method of claim 19, further including:

moving the mock welding tool with the first adapter with respect to a welding coupon in accordance with a first welding technique;

tracking the mock welding tool with the first adapter in three-dimensional space using said virtual reality welding system;

viewing a display of said virtual reality welding system showing a real-time virtual reality simulation of the mock welding tool with the first adapter and the welding coupon in a virtual reality space as the simulated mock welding tool with the first adapter deposits a first simulated weld bead material onto at least one simulated surface of said simulated welding coupon by forming a simulated weld puddle in the vicinity of a simulated arc emitting from the mock welding tool with the first adapter;

viewing, on said display, first real-time molten metal fluidity and heat dissipation characteristics of said first simulated weld puddle; and

modifying, in real-time, at least one aspect of said first welding technique in response to viewing said first real-time molten metal fluidity and heat dissipation characteristics of said first simulated weld puddle.

22. The method of claim 19, further including:

moving the mock welding tool with the second adapter with respect to a welding coupon in accordance with a second welding technique;

tracking the mock welding tool with the second adapter in three-dimensional space using said virtual reality welding system;

viewing a display of said virtual reality welding system showing a real-time virtual reality simulation of the mock welding tool with the second adapter and said welding coupon in a virtual reality space as the simulated mock welding tool with the second adapter deposits a second simulated weld bead material onto at least one simulated surface of said simulated welding coupon by forming a second simulated weld puddle in the vicinity of a simulated arc emitting from said simulated mock welding tool with the second adapter;

viewing, on said display, a second real-time molten metal fluidity and heat dissipation characteristics of the second simulated weld puddle; and

modifying, in real-time, at least one aspect of the second welding technique in response to viewing the second real-time molten metal fluidity and heat dissipation characteristics of the second simulated weld puddle.