Method and apparatus for aligning axes of assisting gas nozzles with laser beam axes in laser processing machines
US4427873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Mar 18, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/702
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of and apparatus for aligning the axis of an assisting gas nozzle with a laser beam axis using a test piece in apparatus which uses a laser to process workpieces is disclosed in which the laser beam is arranged to pass through the assisting gas nozzle, and pierce the test piece. The test piece is held by a holder which includes a pressure detector which measures the pressure of the assist gas flowing through the hold pierced in the test piece. The assisting gas nozzle is adjusted in a plane perpendicular to the axis of the laser beam to obtain a maximum pressure value, which indicates that the axis of the assisting gas nozzle and the axis of the laser beam are in alignment with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.