Fine hole electric discharge machine
US11077510B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jan 16, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/265
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fine hole electric discharge machine includes a machining tank, a storage tank, at least one pipeline, a guide base, a liquid current generator, and a controller. The at least one pipeline has at least one opening directed to the upper surface of a workpiece and allows machining liquid to flow through. The liquid current generator selectively forms a first liquid current in which the machining liquid is supplied from the storage tank and jetted from a predetermined opening of the opening, or a second liquid current in which the machining liquid is sucked from an opening the same as or different from the predetermined opening and recovered to the storage tank. The controller controls the liquid current generator to form the first liquid current or the second liquid current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.