Device and method for contacting a welding rod and contact shell
US9902009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/287
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device and a method for contacting a welding wire in a welding torch includes at least two contact shells having a contact area for contacting the welding wire. In order to make the contact of the welding wire as constant and permanent as possible during the lifetime of a contacting device, the contact shells have a holding section and are arranged inside a sleeve to define a rotational axis, the sleeve being fastened to a nozzle pipe having an integrated pressure mechanism. The pressure mechanism is adapted to exert pressure on the contact shells. The sleeve includes a holding device for exerting a counter-force onto the contact shells. The welding wire is contacted in the contact area of the contact shells with a contact force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.