Electrical discharge boring machine
US4705932A · kind A · utility
16Cited by
13References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1985 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Oct 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H9/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrical discharge boring machine including: a main unit (12) which is moved vertically relative to a workpiece (W); a rotary chuck (14) attached to the lower part of the main unit (12) for holding a hollow bar electrode (16); a guide (36) for slidably guiding the hollow bar electrode (16) near the workpiece (W); a nozzle unit (40) provided on the lower part of the guide for supplying a machining liquid; a rotary joint (28) for introducing the machining liquid into the hollow bar electrode; and a connection (34) for supplying electric power for electrical discharge machining to the hollow bar electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.