Seam welding method and seam welding apparatus
US8431858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2009 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The seam welding apparatus welds a workpiece held by a robot while delivering the workpiece between a pair of electrode rolls. The seam welding apparatus includes a load cell mounted on the robot, for detecting a load imposed along a Y direction which is perpendicular to a pressing direction Z along which the electrode rolls press the workpiece at a weld point and a delivering direction X along which the robot delivers the workpiece at the weld point, a robot controller and an arithmetic unit, a turning mechanism for turning the electrode rolls about the pressing direction Z, and a control device for controlling the turning mechanism to operate depending on the magnitude of the load in the Y direction detected by the load cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.