Laser soldering head in an automatic soldering installation
US5998758A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Aug 12, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An automatic soldering installation includes a soldering head (10) which is composed of a connecting element (11), a soldering wire dispenser (12), focusing optics (13), and an actuator (24). The soldering head (10) is mounted on the arm of a robot (16) which allows to position it in such a manner that the soldering wire (14) is positioned in the area of a respective soldering point (19). The focusing optics (13) is connected to a laser (21) by an optical fiber (22) and operates to focus the free laser beam (15) on the soldering point (19). The actuator (24), which is controlled by a control system (25), allows to vary the distance between the focusing optics (13) and the soldering point (19) independently from the robot (16), and thus to vary the width of the laser beam (15) at the soldering point (19). A more uniform temperature distribution on soldering points (19) of different sizes is thus obtained. The control systems (17, 23, 25) of the robot (16), of the laser (23), and of the actuator (24), respectively, cooperate in order to supply an optimal amount of energy for each soldering operation in every case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.