Indexable bit

A drill bit and indexing technology, which is applied in the direction of drill repairing, drilling tool accessories, drilling/drilling equipment, etc., can solve the problems of complex structure and inconvenient use of indexable drill bits, and achieve simple structure and good cooling effect , Ease of use

Inactive Publication Date: 2013-12-25
DANYANG CITY EAGLE TOOLS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In actual mechanical processing production, the indexable drill bit has a long service life, and the processing efficiency can be increased by 3 to 5 times compared with the traditional twist drill bit. Although the internal cooling method of the general drill bit has a better cooling effect than the external cooling method, the existing internal cooling method The structure of the indexable drill bit is relatively complicated, and it is not convenient to use

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Embodiment Construction

[0011] Such as figure 1 , figure 2 and image 3 As shown, an indexable drill bit of the present invention adopts an internal cooling structure. The drill body 1 includes a drill shank and a chip removal rod 1b. Groove 1c, in the chip removal groove 1c at the end of chip removal rod 1b, the indexable insert 2 is fixed by screw 3. The upper part of the side wall of the drill shank has a liquid inlet 1d, and the end surface of the chip removal rod 1b has a liquid outlet 1e. The drill body 1 has a built-in liquid channel 1f, and the liquid inlet 1d and the liquid outlet 1e communicate with each other through the liquid channel 1f. The part of the liquid inlet 1d above the support platform 1a on the upper part of the drill shank is covered with an annular sleeve 4, and the annular sleeve 4 is seated (to the top) on the support platform 1a, and the inner hole of the annular ring sleeve 4 is provided with a liquid storage tank 4b and The sealing groove, the liquid storage tank 4b...

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Abstract

The invention relates to an indexable bit, and belongs to the technical field of mechanical machining tools. A bit body comprises a drill handle and a chip rod; the lower portion of the drill handle is provided with a holding table, a chip groove is formed on the chip rod, and the end of the chip rod is fixed with a indexable blade through a screw; the drill handle is provided with a liquid inlet, the chip rod is provided with a liquid outlet, a liquid channel is formed in the bit body, and the liquid inlet and the liquid outlet are communicated through the liquid channel; an annular sleeve is sleeved on the liquid inlet above the holding table on the upper portion of the drill handle, the annular sleeve is located on the holding table, and a liquid storing groove and a seal groove are formed in the inner hole of the annular sleeve; the liquid storing groove is located in the position of the liquid inlet, a liquid inlet port is formed on the outer edge and is provided with a liquid inlet hole communicated with the liquid storing groove, and a seal ring is mounted in the seal groove. The indexable bit adopts inner-cooling structure, is reasonable in design, simple in structure, good in cooling effect and convenient to use, and adaptable to high-speed drilling.

Description

technical field [0001] The invention belongs to the technical field of machining tools, in particular to an indexable drill bit. Background technique [0002] In actual mechanical processing production, the indexable drill bit has a long service life, and the processing efficiency can be increased by 3 to 5 times compared with the traditional twist drill bit. Although the internal cooling method of the general drill bit has a better cooling effect than the external cooling method, the existing internal cooling method The structure of the indexable drill bit is relatively complicated, and it is not very convenient to use. Contents of the invention [0003] In order to solve the deficiencies of the above-mentioned indexable drill bit, the object of the present invention is to provide a new internal cooling type indexable drill bit. [0004] The purpose of the present invention is achieved through the following technical solutions: an indexable drill bit, the drill body incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/06
Inventor 朱荣祥
Owner DANYANG CITY EAGLE TOOLS
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