Tool head comprising piezoelectric actuators

Details Tool head comprising piezoelectric actuators Tool head comprising piezoelectric actuators

B - Operations, Transporting

23

Q

B23Q 1/34 (2006.01) B23B 29/12 (2006.01) B23Q 1/58 (2006.01) B23Q 1/62 (2006.01) B23Q 5/027 (2006.01) H01L 41/09 (2006.01)

Patent

CA 2531180

The invention relates to a tool head (1) comprising a holder (2) for receiving a tool (3), and two actuators (4, 5) which are connected to the holder (2) by means of a web (6, 7). The actuators (4, 5) enable the holder (2) to be displaced from a rest position by a few micrometers and also enable the holder (2) to be impinged upon with ultrasound. The actuators (4, 5) contain a piezoelectric drive (12). The tool head (1) can be mounted onto a conventional machine tool after use. The tool head (1) can be used in many ways, especially in the production of micromechanical structures on the surface of a tool.

L'invention concerne une tête d'outil (1) présentant un support (2) prévu pour recevoir un outil (3) et deux actionneurs (4, 5) reliés au support (2) par l'intermédiaire d'une entretoise respective (6, 7). Ces actionneurs (4, 5) permettent, d'une part, de dévier le support (2) de quelques micromètres depuis une position de repos et, d'autre part, de soumettre ce support (2) à des ultrasons. A cet effet, ces actionneurs (4, 5) intègrent une commande piézoélectrique (12). Ladite tête d'outil (1) peut être fixée sur une machine-outil classique selon chaque application. Cette tête d'outil (1) convient à beaucoup d'applications, en particulier à la production de structures micromécaniques dans la surface d'une pièce.

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