Current feeding device for wire electrical discharge machining
AssigneeAgie Charmilles SA
InventorFranco Volpi
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a current feeding device for the supply of electrical current to a wire electrode traveling in an electro-erosion machine during the machining operation. The current feeding device comprising: a rotary electrically conductive body which is in contact with the wire electrode; at least one bearing for supporting the rotary electrically conductive body at one side; and a brush for electrically contacting the rotary electrically conductive body and for supporting the rotary electrically conductive body at the other side of the body and opposite side to the bearing. The brush is at the rotary axis of the rotary electrically conductive body.
Claims13
A current feeding device for the supply of electrical current to a wire electrode traveling in an electro-erosion machine during the machining operation, the current feeding device comprising:
- a rotary electrically conductive body which is in contact with the wire electrode;
- at least one bearing for supporting the rotary electrically conductive body at one side;
- a brush directly electrically contacting the rotary electrically conductive body and for supporting the rotary electrically conductive body at another side of the body and opposite to the bearing,
- the brush being concentric with a rotary axis of the rotary electrically conductive body and supporting the rotary electrically conductive body at the rotary axis.
A current feeding device for the supply of electrical current to a wire electrode traveling in an electro-erosion machine during the machining operation, the current feeding device comprising:
- a rotary electrically conductive body which is in contact about its rim with the wire electrode;
- at least one bearing for supporting the rotary electrically conductive body at one side;
- a brush for electrically contacting the rotary electrically conductive body and for supporting the rotary electrically conductive body at another side of the body and opposite to the bearing,
- the brush and bearing being at a rotary axis of the rotary electrically conductive body;
- and
- the bearing and brush being configured so that the electrically conductive body rotates, without the assistance of a motor, as the wire electrode travels about the rim to thereby present new rim surfaces to further portions of the wire electrode.
Dependencies are inferred from the claim text.