Apparatus for electrodischarge machining
US6459063B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 1, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Mar 1, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric discharge machining apparatus includes a first movable body (40, 42, 50) movable along the Z axis, a ball screw (34), a motor (30) for causing rotation of the ball screw, a nut (35), attached to the first movable body, threadingly engaging the ball screw, a second movable body (10, 13) movable along the Z axis relative to the first movable body, capable of having the tool electrode attached thereto, and a linear motor (71, 72, 73) for moving the second movable body, for machining a workpiece by moving a tool electrode along a Z axis towards the workpiece while causing an electric discharge between the workpiece and the tool electrode. The linear motor includes a stator (73) attached to the first movable body, and a mover (71, 72) attached to the second movable body. The first and second movable bodies include respective electrode attachment units (50, 13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.