Spannvorrichtung für Werkzeughalter

Details

Veröffentlichungs-Nr.

EP3865235

Aktenzeichen

EP20157695

Anmeldetag

17. Februar 2020

Veröffentlichung

14. Dezember 2022

Erteilung

14. Dezember 2022

Rechtsraum

EP

IPC

B23B31/26B23B31/30// B23B31/28F15B15/12

Abstract

A clamping device for releasably holding a tool holder shank (91), comprising:- a housing (2);- a drawbar (5) axially moveable in a bore (3) in the housing;- engagement members (20) moveable under the effect of the drawbar into locking engagement with the tool holder shank; and- an actuating member (14) rotatably arranged in the bore.Upon rotation of the actuating member, a contact surface on a motion transferring element (50) fixedly connected to the actuating member achieves an axial movement of the drawbar by pressing against a contact surface on another motion transferring element (40) fixedly connected to the drawbar. At least one of said contact surfaces comprises two sections with mutually different pitch, such that the same angular displacement of the actuating member, when rotated in a first rotary direction, results in a longer axial movement of the drawbar in a first phase of the rotary movement than in a final phase thereof.

Anmelder

Firma

AB Sandvik Coromant

Land

🇸🇪 Schweden

Fachgebiete