A milling tool

Abstract

The invention concerns a milling tool of the type that comprises a basic body (1) having a centre axis (CI), on which the same is rotatable, and having an outside, which includes a pair of opposite front and back sides (3, 4) as well as a peripheral envelope surface (5), and is equipped with a plurality of replaceable cutting inserts (2). According to the invention, the basic body (1) includes an inner hollow space (36) having an internal limiting surface (37), in which there collectively mouth a plurality of bores (11), which also mouth in the outside, each cutting insert (2) being mounted on an outer end of an ejector (29), which is rectilinearly movable in the individual bore (11) and has an inner end (25) accessible from the hollow space (36), and which interacts with a compressible force generator (14), which always aims at pulling in the same into the bore (11). By mounting the cutting inserts (2) on ejectors (29), which simultaneously are accessible from a common hollow space, the cutting inserts (2) can be replaced quickly and easily, and possibly also be indexed.

Description

technical field [0001] The present invention relates to a milling cutter for chip removal machining, of the type comprising a body having a central axis on which the body is rotatable, and an outer side comprising a pair of opposing Front and back and peripheral envelope surfaces with multiple replaceable cutting inserts. [0002] Tools of the described type are used for machining workpieces of metal or similar materials, such as composite materials. Background technique [0003] The starting point of the invention lies in the problems associated with the mounting and dismounting of the cutting inserts of milling cutters, especially when there are several cutting inserts. Typically, the cutting inserts of milling cutters are indexable by being formed with a plurality of alternately individually usable cutting edges. Particularly common milling cutting inserts are single-sided and have four alternately usable cutting edges as well as a central hole opening into the chip fac...

AI Technical Summary

Problems solved by technology

However, a particularly serious disadvantage is that the cutting inserts can only be indexed or replaced one by one

Even though the screws that clamp the cutting inserts do not have to be manually loosened for indexing, the indexing work is still time-consuming because the cutting edge exchange mechanism for all cutting inserts must be entered into each The position where the lever contacts and can be actuated by the impact member

Furthermore, since the clamping spring must be removed before the cutting insert can be removed, replacement of worn cutting inserts will likely be tedious and time consuming

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