Induction heating system travel sensor assembly

Patent metadata

Field	Value
Publication number	US-9913320-B2
Application number	US-201414280227-A
Country	US
Kind code	B2
Filing date	May 16, 2014
Priority date	May 16, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece.

First claim

The invention claimed is:

1. An induction heating system comprising:
an induction heating device configured to move relative to a workpiece, to generate induction heat, and to direct the induction heat to the workpiece;
a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating device relative to the workpiece, wherein the travel sensor assembly is removably detachable from a housing of the induction heating device;
a contacting detection mechanism that contacts the workpiece as the induction heating device moves relative to the workpiece; and
a force adjustment mechanism configured to vary an amount of force between the contacting detection mechanism and the workpiece, wherein the force adjustment mechanism comprises a biasing member configured to enable the travel sensor assembly to maintain contact between the travel sensor assembly and the workpiece while maintaining detection of the position, movement, or direction of movement of the induction heating device relative to the workpiece.

2. The induction heating system of claim 1 , wherein the travel sensor assembly is configured to transmit a feedback signal relating to the detected position, movement, or direction of movement to a controller that controls a power source providing power to the induction heating device.

3. The induction heating system of claim 2 , comprising the controller, wherein the controller is configured to adjust an amount of power provided by the power source to the induction heating device based at least in part on the feedback signal.

4. The induction heating system of claim 3 , wherein the controller is configured to automatically detect when the travel sensor assembly is communicatively coupled to the controller, and to automatically adjust control of the power source based on the detection of the travel sensor assembly.

5. The induction heating system of claim 1 , wherein the travel sensor assembly comprises an optical sensor configured to detect the position, movement, or direction of movement.

6. The induction heating system of claim 1 , wherein the travel sensor assembly comprises a tachometer configured to detect the position, movement, or direction of movement.

7. The induction heating system of claim 1 , wherein the travel sensor assembly comprises an accelerometer configured to detect the position, movement, or direction of movement.

8. The induction heating system of claim 1 , wherein the travel sensor assembly comprises a magnetic sensor configured to detect the position, movement, or direction of movement.

9. The induction heating system of claim 1 , wherein the contacting detection mechanism comprises a contacting detection wheel.

10. The induction heating system of claim 9 , wherein the travel sensor assembly comprises a replaceable wear ring disposed in a circumferential groove extending along a circumference of the contacting detection wheel.

11. The induction heating system of claim 1 , wherein a position of the contacting detection mechanism relative to the induction heating device is adjustable.

12. The induction heating system of claim 1 , wherein an orientation of the contacting detection mechanism relative to the induction heating device is adjustable.

13. The induction heating system of claim 1 , wherein the induction heating device comprises a first rail system disposed on a first side of the induction heating device, and a second rail system disposed on a second side of the induction heating device, wherein the travel sensor assembly is configured to selectively attach to either of the first and second rail systems.

14. The induction heating system of claim 13 , wherein a position of the travel sensor assembly along the first and second rail systems is adjustable.

15. The induction heating system of claim 3 , wherein the controller is configured to adjust the amount of power provided by the power source to the induction heating device based at least in part on parameters of a welding operation performed on the workpiece.

16. The induction heating system of claim 1 , wherein the force adjustment mechanism comprises a knob, wherein tightening or loosening of the knob adjusts a position of the travel sensor assembly relative to the housing of the induction heating device.

17. The induction heating system of claim 16 , wherein the biasing member opposes the adjustment of the position of the travel sensor assembly relative to the housing of the induction heating device.

18. The induction heating system of claim 1 , wherein the biasing member is configured to enable the travel sensor assembly to maintain contact between the travel sensor assembly and the workpiece while accommodating for jostling, vibration, or a combination thereof.

Assignees

• Illinois Tool Works

Inventors

• Garvey Paul William
• Beistle Edward G
• Liebert Scott Stephen
• Mlnarik Kevin John

Classifications

• B23K9/235

  Preliminary treatment · CPC title

• H05B6/06 Primary

  Control, e.g. of temperature, of power · CPC title

• B23K37/00

  Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass · CPC title

• H05B6/101

  for local heating of metal pieces · CPC title

• B23K9/0282

  for welding tube sections · CPC title