Electrical discharge machine

摘要

The electrical discharge machine comprises a tool (17) intended to machine a workpiece (15) positioned in a work tank (12) containing a machining fluid (16). A regulating device (29) for regulating the level of machining fluid in the work tank is mounted in an outlet pipe (26) connecting the work tank to a reservoir (24). It comprises a deformable element (31), such as an inflatable balloon, connected to a source of pressurized fluid. The dimensions of this deformable element (31) are controlled by a control unit (33) acting on the pressurized fluid. By virtue of the invention there is obtained reliable control over the level of machining fluid, insensitivity to soiling, and high flexibility of installation.