Efficient drilling tool with strong chip removal ability

Abstract

Disclosed in the present invention is an efficient drilling tool with a strong chip removal capacity. The drilling tool comprises a rotating tool holder (1), a core cutting insert (2) and a peripheral cutting insert (3), wherein the rotating tool holder (1) comprises a cutting end (11), a clamping handle (12), and a peripheral surface (13) located between the cutting end (11) and the clamping handle (12); the clamping handle (12) and the peripheral surface (13) are both symmetrical about a central axis (9) of the rotating tool holder (1); the cutting end (11) is provided with a core cutter slot (51) and a peripheral cutter slot (52), and the core cutting insert (2) and the peripheral cutting insert (3) are installed in the core cutter slot (51) and the peripheral cutter slot (52) respectively; the peripheral surface (13) is provided with a core chip pocket (71) and a peripheral chip pocket (72) that communicate with the core cutter slot (51) and the peripheral cutter slot (52) respectively; the core chip pocket (71) comprises a circular recessed surface (711) at the bottom and straight cutting surfaces (712) located on two sides of the circular recessed surface (711); the peripheral chip pocket (72) comprises a flat recessed surface (721) at the bottom and slanted side surfaces (722) located on two sides of the flat recessed surface (721); and the straight cutting surfaces (712) and the slanted side surfaces (722) appear as straight lines in a radial section of the drilling tool. The present invention has the advantages of a strong chip removal capacity, a good anti-vibration effect, a great drilling depth, etc.

Dependencies are inferred from the claim text.