Assembly system for electronic circuit boards
US4598456A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1984 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Oct 19, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53261
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for automatically inserting the leads of electrical components into circuit boards is disclosed. In the preferred embodiment, an electrical component is acquired by the robot. The leads of the component have been trimmed and preformed such that they are substantially parallel with respect to each other with the leads differing in length. The robot positions the component at a fixed location relative to the axis of the robot and within the view of an optical sensor such as a TV camera. The sensor determines the location of each of the leads relative to a fixed location. A first rotary motion rotates the component about a selected axis of the robot through a predetermined angle and a second measurement is made. A second rotation positions the component 180.degree. from the original position and a third measurement is made. Since the angles through which the component is rotated are known, the distance or radius of rotation of each of the leads can be calculated using the known axis of rotation and the radius of rotation, the precise location of each of the leads with respect to the robot is calculated. From the results of these calculations, the longest lead is partially ins…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.