Spark erosion machine with coupled wire electrode guidance heads

Details Spark erosion machine with coupled wire electrode guidance heads Spark erosion machine with coupled wire electrode guidance heads

1986-03-21

1987-06-30

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

204206, 226199, B23H 710

Patent

active

046772707

ABSTRACT:
A spark erosion machine having two spaced apart wire electrode guidance heads, which are forcibly coupled with one another in such a way that the guidance heads are always coaxial to one another. The forced coupling takes place by a hydraulic system that includes adjusting cylinders for the guidance heads and associated control cylinders. The piston rods of the adjusting cylinders are coupled to one another. By the use of hydraulic circuits, a displacement of the piston rods of the control cylinders leads to a corresponding displacement of the piston rods of the associated adjusting cylinders, so that the orientation of both wire guidance heads is always the same. As a result of this hydraulic system, there is no need to couple the upper and lower wire guidance heads by a mechanical linkage, so that the working zone between the heads and the lateral area for the workpiece connected thereto can be of a random magnitude.

REFERENCES:
patent: 3588196 (1971-06-01), Bonga et al.
patent: 3731044 (1973-05-01), Ullmann et al.
patent: 3849624 (1974-11-01), Dulebohn et al.
patent: 3946189 (1976-03-01), Pomella et al.
patent: 4431896 (1984-02-01), Lodetti
patent: 4485288 (1984-11-01), Schneider
patent: 4547646 (1985-10-01), Briffod
patent: 4596640 (1986-06-01), Inoue
"Fail-Safe Electrical Discharge Machine", IBM Technical Disclose Bulletin, vol. 17, No. 11, Apr. 1975 by Iwata et al.

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