Method and apparatus for detecting hold-position of electronic component, and apparatus for mounting electronic component
US4747198A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Sep 12, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Are disclosed a method of detecting a hold-position of an electronic component in which the component is held by an electronic-component holding apparatus, an electronic-component holding apparatus having a hold-position detecting device, and an electronic-component mounting apparatus for mounting an electronic component on a printed-circuit board. The above method includes the steps of emitting light beams in a direction toward the electronic component (W) held by the electronic-component holding apparatus (58, 70), so as to take a projection of the component, and of detecting a position of the projection, thereby detecting the hold-position of the component. The above holding apparatus is characterized in that at least a part of a holding head body (86) which surrounds a center line of a sucking pipe (88) is made of a transparent material, and in that the holding apparatus has the hold-position detecting device which includes a light emitter (146) for emitting light beams in a direction parallel to the center line of the sucking pipe so as to take a projection of the component held by the sucking pipe, and further includes an electronic image device (150) for detecting a position…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.