Electro-erosion machine tools and head assemblies therefor
US4205212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1977 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Apr 26, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A head assembly for an electro-erosion machine tool comprises, in a housing, a guide for guiding the moving filamentary or strip-form tool electrode and first contact means for supplying erosion energy to the electrode. The scavenging medium is fed into the housing so as to cool the contact means and guide, and leaves it by way of a nozzle through which also the electrode leaves the housing on its way to another head assembly arranged on the opposite side of the location where machining is performed, the scaverging medium being thereby fed to the machining location as an envelope coaxial to the electrode. Second contact means for contacting the workpiece to be machined are fixed to the nozzle and the connections to each contact means are arranged for low inductive energy loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.