Dual cam servo weld splicer
US11517977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Mar 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/021
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An ultrasonic welding apparatus joins metal pieces, such as wires, which are placed in a weldment zone where the metal pieces are subjected to pressure through a compressive height anvil and an adjustable width anvil, and intimate contact is made with a sonotrode of an ultrasonic stack. A first electric motor actuates movement of the height anvil to develop a compressive force for ultrasonic welding of the metal pieces. A second electric motor can position the width anvil before and during welding. A sensor, such as a load cell, measures the compressive force developed. The sensor directly can measure the load on the height anvil independent of the ultrasonic stack. A software algorithm can compensate for deflection of the load cell sensor and lost motion in the first electric motor actuating movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.