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Peripheral drilling blade and drilling tool

An insert and drilling technology, applied in the field of peripheral drilling inserts and their drilling tools, can solve the problems of complicated use, reduced processing efficiency, high cost, and achieve the effects of stable use performance, stable dimensional accuracy, and short production cycle.

Active Publication Date: 2020-12-08
XIAMEN GOLDEN EGRET SPECIAL ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, one way is to adjust the size of the drill bit by using an eccentric sleeve. This method requires the use of an auxiliary part of the eccentric sleeve. Balanced position structure usually needs to reduce cutting parameters, thereby reducing processing efficiency; another way is to customize the required size drill pipe through non-standard custom drill pipe, the specification of non-standard customized drill pipe is determined, the application range is small and the required production cycle is long

Method used

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  • Peripheral drilling blade and drilling tool
  • Peripheral drilling blade and drilling tool
  • Peripheral drilling blade and drilling tool

Examples

Experimental program
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Effect test

Embodiment

[0029] see Figure 1 to Figure 4 As shown, a peripheral drilling insert of the present invention comprises a substantially quadrangular insert body 3; the insert body 3 has an upper surface 30, a bottom surface 50 and a side surface 20 (also the flank of the peripheral drilling insert); The intersection of the upper surface 30 and the side surface 20 forms four cutting edges 10 corresponding to the quadrilateral; each cutting edge 10 includes a cutting edge segment 101, a wiper segment 102, and a transitional arc segment 103 respectively in sequence, and the transitional circle The arc edge segment 103 corresponds to the corner position of the blade body 3; in the side surface 20 of the blade body 3, corresponding to each cutting edge 10, a blade positioning surface 201, a grindable surface 202, and an escape surface 203 are provided. And the transition surface 204, wherein, the blade positioning surface 201, the grindable surface 202 and the transition surface 204 correspond ...

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PUM

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Abstract

The invention discloses a peripheral drilling blade and a drilling tool. The peripheral drilling blade comprises a blade body, wherein the blade body is provided with an upper surface, a bottom surface and side surfaces; the upper surface and the side surfaces are intersected to form four cutting edges corresponding to a quadrangle; each cutting edge comprises a cutting edge section, a sleeking edge section and a transition arc edge section which are connected in sequence; in the side surfaces of the blade body, a blade location surface, a grindable surface, a bypass surface and a transition surface are arranged in a manner of corresponding to each cutting edge; and each grindable surface and the corresponding blade location surface are arranged to be non-coplanar. According to the invention, the machining size of the drilling tool is adjusted through simple edge grinding by means of the arranged grindable surfaces, so that the drilling tool has a larger application range, and the service life and performance of the tool are not affected; and meanwhile the hard alloy peripheral drilling blade obtained after the edge grinding has more stable size precision.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a peripheral drilling insert and a drilling tool thereof. Background technique [0002] With the upgrading of machinery manufacturing and processing equipment, the supporting processing tools have gradually changed from traditional high-speed steel tools to carbide CNC tools. Carbide CNC tools have higher processing efficiency, processing life and processing quality. [0003] Carbide CNC cutting tools can be divided into integral type and blade type. The integral type is usually formed by grinding rods, while the blade type is usually formed by pressing. Its structure and use are various. Cemented carbide CNC inserts need to be clamped with high-speed steel tool holders to realize connection with tool holders or CNC machine tools. Indexable shallow hole drilling tools are one of them. [0004] The indexable shallow hole drill is also called U drill. The drill head is inlai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00
CPCB23B51/00B23B2251/204B23B2251/04B23B2251/08
Inventor 丘玉勇郑少良曾腾辉邹伶俐
Owner XIAMEN GOLDEN EGRET SPECIAL ALLOY