Spindle device of machine tool

Details Spindle device of machine tool Spindle device of machine tool

B - Operations, Transporting

23

Q

B23Q 11/10 (2006.01) B23B 31/26 (2006.01) B23Q 1/00 (2006.01) B23Q 1/70 (2006.01) B23Q 3/12 (2006.01)

Patent

CA 2378476

A spindle device and a tool holder of a machine tool stably ejecting spray coolant from the tip of a tool (19) in a tool holder (18) and suppressing a waste of the spray coolant, wherein the tool holder (18) is fixed to the tip part of a spindle (2) mechanically detachably through clamp means (KR), an extension passage (104) is formed in the state that an in-spindle spray coolant passage (102) formed in the center part of the spindle (2) is formed to communicate with the in-holder spray coolant passage (103) through the extension passage (104).

L'invention porte sur une broche et un porte-outil de machine-outil, un fluide de refroidissement étant éjecté par atomisation de l'embout d'un outil (19) placé dans un porte-outil (18), ce qui permet de ne pas gaspiller de fluide. Le porte-outil (18) est fixé mécaniquement et de manière amovible à la partie terminale d'une broche (2) au moyen d'une pince (KR). Un passage d'extension (104) est formé de sorte que le passage (103) pour le fluide de refroidissement formé dans la partie centrale du porte-outil (18) s'étende vers l'arrière, et le passage (102) pour le fluide de refroidissement formé dans la partie centrale de la broche (2) communique avec le passage (3) par le passage (4) d'extension.

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