Inter-electrode displacement monitoring and control
US5558785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K31/125
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrode displacement monitoring and control system for predicting and adaptively controlling resistance weld quality. The relative displacement (34) between a movable electrode (16) and a fixed electrode (20) is monitored during a resistance weld cycle. The displacement information is processed and applied as a control signal for dynamically and adaptively varying various weld parameters including current application in order to control weld quality. A reversal in the direction of electrode displacement is identified and used in the adaptive control strategy to determine the amount of dynamic indentation achieved in a weld cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.