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Drill bit with automatic chip removal function

It is a technology of automatic discharge and function, which is applied in the direction of drill repair, twist drill, drilling tool accessories, etc. It can solve the problems of poor balance, no automatic chip removal performance, and reduced drilling quality, so as to reduce low resistance and solve the problem of The effect of easy entanglement of chips and enhancement of balance and stability

Inactive Publication Date: 2020-06-30
吉林省恒丰数控工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing two-edged drills are poorly balanced and do not have the performance of automatic chip removal, which reduces the quality of drilling workpieces with drills.

Method used

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  • Drill bit with automatic chip removal function
  • Drill bit with automatic chip removal function

Examples

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Embodiment

[0024] Example: refer to Figure 1-2 , a drill bit with an automatic chip removal function, comprising a shank 1, a cutter bar, a main cutting edge 5 and a cooling hole 9, the shank 1 and the cutter bar are integrally formed, the side cut cross section of the shank 1 is circular, and The shank 1 is in the shape of a shaft as a whole, and the shank 1 and the integrally formed knife rod are selected as a hard alloy knife rod with a groove 2, a land 3 and a blade back 4, and the land 3 is arranged on the groove 2 and the blade back 4, the edge groove 2 is opened on the edge back 4 of the cutter bar;

[0025] Wherein, the tip of the tool bar away from the shank 1 is provided with a flank 7 and a rake face 8, the flank 7 is provided with a cooling hole 9, the edge of the rake face 8 is the main cutting edge 5, and the tip of the tool bar There are three main cutting edges 5 on the upper part, and a chisel edge 6 is provided on the tip part, and the chisel edge 6 is located between...

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Abstract

The invention relates to the technical field of alloy drill bits, in particular to a drill bit with an automatic chip removal function. The drill bit comprises a shank part, a cutter bar, main cuttingedges and a cooling hole. The shank part and the cutter bar are integrally formed, the cutter bar is provided with an edge ditch, an edge belt and an edge back, the edge belt is arranged between theedge ditch and the edge back, a rear cutter face and a front cutter face are arranged at the tip end, far away from the shank part, of the cutter bar, a cooling hole is formed in the rear cutter face,the cutting edge of the front cutter face is a main cutting edge, and the tip end is further provided with a transverse edge. By means of the designed edge type and the wide chip containing groove, namely the wide edge ditch capable of smoothly discharging chip, the low resistance of an edge drill is reduced, and the ability of stable chip breaking is improved; due to the cutting segmentation property and the shape stability system of the designed drill bit, the problem that chips are likely to wind is solved, the drill bit can adapt to a wide range of machining materials, and stable and high-efficiency machining is realized; and due to the three main cutting edges which are innovatively designed, the balance and stability of the tool in machining are improved.

Description

technical field [0001] The invention relates to the technical field of alloy drill bits, in particular to a drill bit with an automatic chip removal function. Background technique [0002] As an effective deep hole processing tool, deep hole drilling is widely used in the fields of automobile and aerospace. Due to its large length-to-diameter ratio and closed and semi-closed processing state, it is difficult to sort and dissipate heat during processing. Chips are mainly discharged under the action of high-pressure coolant. Studies have shown that by reducing the surface roughness of the tool and the friction coefficient between chips and the tool surface, heat dissipation can be accelerated, chip removal can be smoother, and the cutting performance of the tool can be further improved. [0003] The existing two-edged drills are poorly balanced and do not have the performance of automatic chip removal, which reduces the quality of drilling workpieces with drills. . [0004]...

Claims

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Application Information

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IPC IPC(8): B23B47/34B23B51/02B23B51/06
CPCB23B47/34B23B51/02B23B51/06
Inventor 盆广富何思道邱世辉
Owner 吉林省恒丰数控工具有限公司
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