Method of welding a cage and nut assembly to a workpiece
US6770835B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2003 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention provides a method of welding a cage and nut combination to a surface of a workpiece using a welding electrode as a holding and locating member for the cage and nut. The cage and nut are placed, upside-down, in a recess formed in the welding tip of a lower electrode which is positioned vertically with its tip up. The workpiece backed by an opposing welding electrode are positioned above the electrode holding the inverted cage. The inverted cage and workpiece are pressed together along a vertical axis and electrically welded. The lower electrode with its recess serves to accurately locate the inverted cage with its weld material projections for uniform welding contact with the surface of the workpiece for more efficient welding setup and an improved welded bond between the cage, retaining a nut, and the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.