用于铣削刀具的可转位铣削刀片

Indexable milling insert for milling tools

Abstract

The present invention relates to an indexable milling insert and a corresponding basic body, intended for use in milling tools of small diameters, foremost in rotary shank-end mills for the machining of metallic workpieces. The invention also relates to a milling tool having indexable milling inserts detachably mounted in a basic body. The milling insert, according to the invention, is mounted in the basic body without fastening members, which considerably facilitates the mounting of the milling inserts for the operator who should handle the milling tool. According to the invention, an interface is created between milling inserts and basic body that guarantees that the milling insert is kept in place in the correct position during the milling operation, without a fastening member needing to be used. The milling insert is fitted tangentially obliquely down into the body from the side by means of a key and is locked in all directions using a lock means of the milling insert and the basic body, respectively. The lock means consists of locking surfaces and coupling means, and the interface created by the lock means provides the milling insert a satisfactory stability.
本发明涉及旨在用于在具有小直径的铣削刀具中、主要地在用于金属工件加工的带有旋转柄的端铣刀中使用的可转位铣削刀片和对应基体。本发明还涉及具有被以可拆离方式安装在基体中的可转位铣削刀片的铣削刀具。根据本发明的铣削刀片不用紧固部件而安装在基体中,这显著便于应操控铣削刀具的操作员安装铣削刀片。根据本发明,铣削刀片和基体之间形成接口,这在铣削操作期间保证铣削刀片保持在正确的位置中而不需要使用紧固部件。铣削刀片利用键而从侧面沿切向倾斜向下地装配到本体中并且分别使用铣削刀片和基体的锁定装置而沿着所有的方向锁定。所述锁定装置由锁定表面和联接装置构成,并且由锁定装置形成的所述接口为铣削刀片提供令人满意的稳定性。

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