Quick change chip removing drill bit
A drill bit and drill shank technology, applied in the field of quick-change chip evacuation drill bits, can solve problems such as affecting processing efficiency and processing quality, unsmooth chip removal, and increased wear, so as to ensure the quality of the machined surface, the service life of the tool, and the processing quality. and machining efficiency, the effect of improving tool durability
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[0023] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.
[0024] As shown in the figure: the technical solution of this embodiment is: a quick-change chip-cutting drill bit, including a coaxially arranged drill shank 1 and a cutter body 2, a spiral groove 3 is opened on the cutter body, and the cutter body The top end is a drill tip 4, and the drill tip 4 is provided with two centrally symmetrical flanks, and the flanks include a stepped first cutter face 5 and a second cutter face 6 and along the rear face of the drill bit. The back edge 7 is ground toward the second cutter face 6 to form a third cutter face 8, the inside of the spiral groove 3 is provided with a spiral chip guide arc surface 10 along the tail root edge 9 o...
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