Tuning mechanism and method for vibration welding
US6364977B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jun 5, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/9592
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for determining the resonance frequency for a vibration welder are described. The vibration frequencies at a predetermined vibration level and on both sides of the resonance frequency are derived and are then used to determine and operate the vibration welder at the resonance frequency. In one embodiment the vibration frequency of the vibration welder is swept up from one side of the resonance point and the vibration amplitude is monitored and a first frequency at a particular vibration amplitude is determined. The same sweeping is done from the other side of the resonance point and a second frequency determined for the same vibration amplitude reference level but on the other side of the resonance frequency. The two measured frequencies are then combined to yield the resonance frequency which can then be used to operate the vibration welder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.