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Centering alloy tool bit twist drill

A technology of centering alloy and alloy knives, which is applied in twist drills, drill repairing, drilling tool accessories, etc., can solve the problems of easy damage of cutting edges, low efficiency of cutting tools, and non-absolute balance

Pending Publication Date: 2021-01-08
李仕清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the drilling tools used in machining are composed of chisel edge, cutting edge, helical cutting edge, and side edge. The cutting edge is on a helical cutting surface and has a single co-position cutting structure. Inside, the cutting edge is subjected to the rotating cutting force and the outward transmission force from the center at the same time. Under the action of the double force, the cutting edge at the intersection of the cutting edge and the helical cutting edge is always very easy to be damaged. It is not absolutely balanced and there is a swing phenomenon. Simply relying on the helical cutting surface to stabilize the tool causes damage to the helical cutting surface and the helical cutting edge. It is generally understood that the smoother the surface, the higher the strength. High, none of the essential structural properties of the substance are revealed, therefore, the existing hole machining tools are low in efficiency, easy to damage, poor in stability, and poor in drilling accuracy

Method used

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  • Centering alloy tool bit twist drill

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Effect test

Embodiment approach 1

[0037] Such as Figure 1-2 As shown, the centering alloy cutter head twist drill 1 of the first embodiment of the present invention, the centering alloy cutter head twist drill 1 mainly relates to drilling tools for machining, and the centering alloy cutter head twist drill The integral one consists of a tool shank (not shown) including a tapered shank or a straight shank, and a helical cutter body 4. At least two helical cutter bodies 4 are milled on the helical cutting surface at the front end and integrally or connected and formed integrally. There is an alloy cutter head 31, and the alloy cutter head 31 is integrally formed with a cutting surface 13 facing the front end of the rotation direction along the axial center of the centering alloy cutter head twist drill 1, and two helical cutter bodies 4 integrally arranged The helical cutting surfaces 13 on both sides of the alloy cutter head 31 are respectively provided with the same groove as the two cutting surfaces 13 integ...

Embodiment approach 2

[0047] Such as Figure 1-4 As shown, the centering alloy cutter head twist drill 1 of the first embodiment of the present invention, the centering alloy cutter head twist drill 1 mainly relates to drilling tools for machining, and the centering alloy cutter head twist drill The integral one consists of a tool shank (not shown) including a tapered shank or a straight shank, and a helical cutter body 4. At least two helical cutter bodies 4 are milled on the helical cutting surface at the front end and integrally or connected and formed integrally. There is an alloy cutter head 31, and the alloy cutter head 31 is integrally formed with a cutting surface 13 facing the front end of the rotation direction along the axial center of the centering alloy cutter head twist drill 1, and two helical cutter bodies 4 integrally arranged The helical cutting surfaces 13 on both sides of the alloy cutter head 31 are respectively provided with the same groove as the two cutting surfaces 13 integ...

Embodiment approach 3

[0057] like Figure 1-4 As shown, the centering alloy cutter head twist drill 1 of the first embodiment of the present invention, the centering alloy cutter head twist drill 1 mainly relates to drilling tools for machining, and the centering alloy cutter head twist drill The integral one consists of a tool shank (not shown) including a tapered shank or a straight shank, and a helical cutter body 4. At least two helical cutter bodies 4 are milled on the helical cutting surface at the front end and integrally or connected and formed integrally. There is an alloy cutter head 31, and the alloy cutter head 31 is integrally formed with a cutting surface 13 facing the front end of the rotation direction along the axial center of the centering alloy cutter head twist drill 1, and two helical cutter bodies 4 integrally arranged The helical cutting surfaces 13 on both sides of the alloy cutter head 31 are respectively provided with the same groove as the two cutting surfaces 13 integral...

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PUM

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Abstract

The invention provides a centering alloy tool bit twist drill, which mainly relates to a drilling tool for machining, is high in stability, high in heat dissipation efficiency and long in service life, and is easy to position during drilling. The centering alloy tool bit twist drill comprises a tool handle, a spiral tool body and an alloy tool bit. Under the condition of the same material, the alloy tool bit of the centering alloy tool bit twist drill is applied with millimeter strength, the strength of the centering alloy tool bit twist drill is at least improved by 50% or more compared witha twist drill of a common structure in millimeter magnitude, and the pressure intensity averagely borne by the alloy tool bit cutting face of the millimeter-scale centering alloy tool bit twist drillcan be improved by 50% or more.

Description

Technical field: [0001] The invention relates to a twist drill with a centering alloy cutter head. The twist drill with a centering alloy cutter head is used in the drilling and milling process of mechanical processing and fitter maintenance. The new mechanical processing theory believes that the cutting efficiency of the segmented or stepped cutting edge is high , however, when the stepped cutting edge is gradually extended, its effect will be significantly reduced until it disappears, so this theory is still not really a correct theory. Background technique: [0002] At present, the drilling tools used in machining are composed of chisel edge, cutting edge, helical cutting edge, and side edge. The cutting edge is on a helical cutting surface and has a single co-position cutting structure. Inside, the cutting edge is subjected to the rotating cutting force and the outward transmission force from the center at the same time. Under the action of the double force, the cutting ...

Claims

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Application Information

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IPC IPC(8): B23B51/02B23B51/06
CPCB23B51/02B23B51/06B23B2251/04B23B2251/08
Inventor 王艾泉张建华其他发明人请求不公开姓名
Owner 李仕清
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