Tool using a piezo actuator
US7157833B2 · kind B2 · utility
5Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2005 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Feb 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool has a tool insert and an electrically operated drive unit oscillatingly driving the tool insert. The drive unit has a piezo actuator and an adjusting travel enlarger coupled to the piezo actuator. The adjusting travel enlarger has a master piston, at least one slave piston, and at least one pressure chamber. The master piston acts through the at least one pressure chamber on the at least one slave piston. The piezo actuator and the master piston are fixedly connected to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.