Workpiece monitoring means for electric discharge working apparatus
US4348578A · kind A · utility
9Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1979 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Aug 14, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/093
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An automatic arc welding machine having a welding torch adapted to be placed against a workpiece and a monitoring sensor such as an image taking tube for sensing the workpiece. The operation of the sensor is so controlled that it is operated when the welding current to the torch is interrupted or decreased so that any effect of welding arc on the image taking tube can be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.