Method and apparatus for adjusting and replacing EDM components

Details Method and apparatus for adjusting and replacing EDM components Method and apparatus for adjusting and replacing EDM components

1993-09-13

1995-07-04

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 710

Patent

active

054302684

ABSTRACT:
An electrical discharge machine apparatus including a guide assembly for guiding a wire in cutting engagement with a workpiece and having a working end closest to the workpiece. The apparatus incorporates a bore-type or a barrel-type current pickup in sliding engagement with the wire for transferring current to or from the wire. A ring gear is provided on a flush cup coupled to gear teeth on the current pickup in a manner whereby turning of the flush cup causes turning of the pickup for exposing a new surface to the wire. A process is provided for indexing current pickups from the working end of the guide assembly. A process is also provided for removing and replacing guide assembly components from the working end of the guide assembly.

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