Method of loading parts
US4807356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Jan 7, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53178
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a part mounting device for mounting chip parts on a substrate, comprising a linear motor having a columnar yoke with upper and lower ends thereof pivotably supported on the device, permanent magnets disposed in the vicinity of the columnar yoke and forming with the columnar yoke a magnetic circuit, and a bobbin disposed in the vicinity of the columnar yoke and slidable in the columnar direction of the yoke; PA1 a chip part holder fixedly secured to the bobbin and having a vacuum nozzle for picking up and holding chip parts; PA1 a mechanism connected to said linear motor for controlling the driving of the linear motor for driving the part holder rapidly for moving chip parts quickly from a first position remote from the position of the substrate on which the chip parts are to be mounted to a third position just before the chip parts are on the substrate and then driving the part holder slowly to move the chip parts from the third position to a second position where the chip parts are on the substrate; and PA1 a mechanism connected to the yoke for rotating the yoke in a plane transverse to the columnar direction of the yoke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.