Welding device and welding method

Patent metadata

Field	Value
Publication number	US-11623293-B2
Application number	US-201816649310-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Oct 6, 2017
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A device and method for welding a welding stud to a base is provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

First claim

The invention claimed is:

1. A welding device for welding a welding stud to a base material, the device comprising a stud holder; a welding-current contact element for applying a welding current to the welding stud to partially liquefy a material of the welding stud and/or the base material; a stud immersing device for immersing the welding stud into the liquefied material of the welding stud and/or the base material when the welding stud and/or the base material is partially liquefied due to the welding current; a detecting device for detecting one or more parameters of a welding operation; a data memory for storing the one or more parameters detected by the detecting device; a control device which is suitable for comparing the one or more parameters detected by the detecting device during a current welding operation with the one or more parameters stored in the data memory, and an output device, the control device outputting, by the output device, differences between the one or more parameters detected by the detecting device during the current welding operation and the one or more parameters stored in the data memory and/or information derived from the differences, wherein the information derived comprises a recommendation and/or request for cleaning and/or maintaining the welding device.

2. The welding device as claimed in claim 1 , wherein the output device comprises a visual display.

3. The welding device as claimed in claim 1 , wherein the output device comprises a wireless transmission device.

4. The welding device as claimed in claim 1 , wherein the one or more parameters of the welding operation that can be detected by the detecting device comprise an electrical voltage and/or a current intensity of the welding current, and/or a speed and/or a position and/or a direction of movement of the welding stud and/or a number of welding operations carried out.

5. The welding device as claimed in claim 1 , wherein the control device is suitable for controlling the one or more parameters of a subsequent welding operation in dependence on the one or more parameters detected by the detecting device during a previous welding operation.

6. A method for welding a welding stud to a base, material using a welding device in a welding operation, the method comprising
a) providing a welding stud,
b) applying a welding current to the welding stud between the welding stud and the base material,
c) partially liquefying a material of the welding stud and/or the base material,
d) allowing the liquefied material of the welding stud or the base material to solidify,
e) immersing the welding stud into the liquefied material of the welding stud or the base material before it solidifies,
f) detecting one or more parameters of the welding operation by a detecting device, and outputting differences between the one or more parameters detected by the detecting device during a current welding operation and the one or more parameters stored in a data memory and/or information derived from the differences, wherein the information derived comprises a recommendation and/or request for cleaning and/or maintaining the welding device
g) storing the one or more parameters detected by the detecting device, and
h) comparing the one or more parameters detected by the detecting device during a current welding operation with the one or more parameters stored in the data memory.

7. The method as claimed in claim 6 , comprising visually outputting the differences between the one or more parameters detected by the detecting device during the current welding operation and the one or more parameters stored in the data memory or the information derived from the differences.

8. The method as claimed in claim 6 , comprising wirelessly transmitting the differences between the one or more parameters detected by the detecting device during the current welding operation and the one or more parameters stored in the data memory or the information derived from the differences.

9. The method as claimed in claim 6 , wherein the one or more parameters of the welding operation detected in f) comprise an electrical voltage and/or a current intensity of the welding current, and/or a speed and/or a position and/or a direction of movement of the welding stud and/or a number of welding operations carried out.

10. The method as claimed in claim 6 , wherein one or more parameters of a subsequent welding operation are controlled in dependence on the one or more parameters detected during a previous welding operation.

11. The welding device as claimed in claim 2 , the output device comprising a wireless transmission device.

Assignees

• Hilti Ag

Inventors

• Bertsch Klaus
• Popp Uwe

Classifications

• B23K9/0953 Primary

  using computing means · CPC title

• B23K9/202 Primary

  by means of portable equipment, e.g. stud-welding gun · 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

• B23K9/1087

  Arc welding using remote control · CPC title