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Hard alloy steel taper drill bit

A cemented carbide steel and taper technology, which is used in conical drills, repair drills, drilling tool accessories, etc., can solve the problems of high labor intensity, low processing efficiency, and scrapped workpieces, achieve low labor intensity, and meet the requirements of structural accuracy. High and high processing efficiency

Inactive Publication Date: 2015-04-29
SUZHOU OUMEIKE CARBIDE TOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the processing of the workpiece, sometimes the processing of the tapered hole is encountered. In many cases, a cylindrical hole is often processed first, and then the tapered hole is formed by manual processing of the taper; this not only requires high technical requirements for the processing personnel, but also The labor intensity is high and the processing efficiency is low; in the case of high structural precision requirements, it is often necessary to go through repeated processing, and sometimes even cause the workpiece to be scrapped

Method used

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  • Hard alloy steel taper drill bit

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Embodiment Construction

[0014] The design will be further described below in conjunction with the accompanying drawings of the description.

[0015] A cemented carbide steel tapered drill bit, including a shank and a working part, is characterized in that the working part is tapered.

[0016] further:

[0017] The above described cemented carbide steel taper drill bit is characterized in that: the taper of the taper is 15°.

[0018] The aforementioned cemented carbide steel taper drill bit is characterized in that: the apex angle of the cutting part of the first drill bit is 118°, the bevel angle of the chisel edge is 50°, and the relief angle is 20°.

[0019] The above mentioned cemented carbide steel taper drill bit is characterized in that: the helix angle of the working part is 30°.

[0020] The above-mentioned cemented carbide steel taper drill bit is characterized in that: the material of the cemented carbide steel taper drill bit is cemented carbide steel.

[0021] The above mentioned cemen...

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Abstract

The invention relates to a hard alloy steel taper drill bit which comprises a handle part and a working part and is characterized in that the working part is of a cone shape. According to the hard alloy steel taper drill bit disclosed by the design, a taper hole is formed by machining for once, machining efficiency is high, labor intensity is low and meanwhile, the requirement of places with the high structural accuracy requirement can be met.

Description

technical field [0001] The design relates to a hard alloy steel taper drill bit, which belongs to the technical field of machining. Background technique [0002] In the processing of the workpiece, sometimes the processing of the tapered hole is encountered. In many cases, a cylindrical hole is often processed first, and then the tapered hole is formed by manual processing of the taper; this not only requires high technical requirements for the processing personnel, but also The labor intensity is high, and the processing efficiency is low; in the occasions with high structural precision requirements, it is often necessary to undergo repeated processing, and sometimes even cause the workpiece to be scrapped. Contents of the invention [0003] Aiming at the deficiencies of the existing technology, the purpose of this design is to provide a cemented carbide steel taper drill bit, the taper hole is formed at one time, the processing efficiency is high, the labor intensity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00
CPCB23B51/0081B23B2251/04B23B2251/043
Inventor 徐金海祁长岭
Owner SUZHOU OUMEIKE CARBIDE TOOL
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