| 摘要 |
The invention relates to an electro-erosion threading device aptable to amachine (A) for electro-erosion machining with massive electrode, including an assembly with rack and gear wheels for the movement of an electrode holder tool (14) that, in order to carry out the rotation and forward motion of the electrode holder tool (14) simultaneously comprises, inside a housing (1) fastened on the front face of the working head (B), a cylindrical wheel (5) in contact with a wheel adjusting plate (6, 7, 8 and 9) transmitting rotation to a bevel gearing (10 and 11), the wheel (11) being integral with an assembly: rod (12) - gripping chuck (13) the electrod holder tool (14).
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