TWM527358U - Improved structure of drill bit - Google Patents

Description

Bit structure improvement

This creation relates to a bit structure improvement, and more particularly to a drill bit having a plurality of chip evacuation grooves.

Please refer to the first figure and the second figure. On one body 110 of one of the conventional drill bits 100, only two chip discharge grooves 120 are provided, so that when the hole is processed, the body 110 is generated under high speed rotation. Shake, which further leads to a reduction in processing precision.

In view of this, how to improve the structure of the drill bit to maintain the stability of the body under high-speed rotation is a problem that the industry is currently looking forward to.

One of the aims of the present invention is to provide an improved bit structure which has good stability when the body has a drilling process under high speed rotation.

Another object of the present invention is to provide a drill having a body having a plurality of symmetrical chip evacuating grooves for increasing the amount of chip removal and improving heat dissipation efficiency when drilling at a high speed.

In order to achieve the above object, a drill bit structure improvement comprises: a body having a head end and a tail end disposed opposite to the head end; a connecting member having one end insertable at a tail end of the body, a cutting thread a head end ring extending to the tail end; a plurality of chip flutes The slot extends from the tip end to the trailing end in a manner partially covering the cutting thread.

In order to achieve the above object, the plurality of chip evacuation grooves of the bit structure improvement of the present invention are symmetrically disposed on the body, and the number is four.

To achieve the above object, the bit structure of the drill bit of the present invention has a plurality of chip flutes that partially cover the cutting thread in a vertical manner.

In order to achieve the above object, the connector having the improved bit structure of the present invention is not limited to a hexagonal shape.

100‧‧‧ drill bit

110‧‧‧ body

120‧‧‧Wraps

200‧‧‧ drill bit

210‧‧‧ body

212‧‧‧ head end

214‧‧‧End

220‧‧‧ cutting thread

230‧‧‧Multiple chip evacuation trenches

240‧‧‧Connecting parts

The first picture is a perspective view of the conventional drill bit; the second picture is the bottom view of the conventional drill bit; the third picture is the perspective view of the improved drill bit structure; the fourth picture is the exploded view of the improved bit structure; the fifth picture is the creation A perspective view of another perspective of the improvement of the drill bit structure; the sixth diagram is a bottom view of the improved drill bit structure; and the seventh diagram is a schematic view of the operation of the improved drill bit structure.

Referring to the third and fourth figures, the drill bit 200 for drilling is provided with a body 210, a cutting thread 220, a plurality of chip evacuation grooves 230, and a connecting member 240.

Further, in the embodiment shown in the third and fourth figures, the body 210 has a head end 212 and a opposite end 212 is provided with a tail end 214 for cutting. The threaded thread 220 extends from the head end 212 to the trailing end 214. In addition, the plurality of chip evacuation grooves 230 extend from the head end 212 to the trailing end 214 in a manner partially covering the cutting threads 220, and are disposed on the body 210 in a symmetrical manner.

The connecting member 240 can be inserted into the tail end 214 of the body 210 at one end, and can be connected to a motor, an implement or the like at the other end to drive the body portion for drilling.

Obviously, as shown in the sixth figure, when the drilling operation of the bit 200 of the present invention is performed, the arrangement of the plurality of chip evacuation grooves 230 will make the drill bit 200 less likely to be eccentric and can be used to reduce sloshing; The increase in the number from the prior art to the four in the present embodiment also facilitates the discharge of waste, increases the drilling efficiency, and further assists in the dissipation of waste heat.

In addition to the manner in which the first set of chip evacuation grooves 230 and the second group of chip evacuation grooves 240 shown in the third and fifth figures are disposed on the body 210, the plurality of chip evacuation grooves 230 may be further disposed vertically. In a manner, the cutting thread 220 is partially covered.

In summary, by the structure of the plurality of chip evacuation grooves 230 on the present drill bit 200, structural differences can be made with the prior art drill bit 100, and the sloshing is reduced, the waste discharge is facilitated, and the drilling efficiency is increased. It helps the waste heat dissipation and other advantages, and is more conducive to the user's manipulation.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

200‧‧‧ drill bit

210‧‧‧ body

212‧‧‧ head end

214‧‧‧End

220‧‧‧ cutting thread

230‧‧‧Multiple chip evacuation trenches

240‧‧‧Connecting parts

Claims (4)

A drill bit structure improvement comprising: a body having a head end and a tail end disposed opposite to the head end; a connecting member having one end insertable at a tail end of the body, and a cutting thread extending from the head end ring To the trailing end; a plurality of chip evacuating grooves extend from the head end to partially cover the cutting thread to extend to the trailing end. The bit structure improvement according to claim 1, wherein the plurality of chip flutes are symmetrically disposed on the body, and the number is four. The bit structure improvement of claim 1, wherein the plurality of chip flutes partially cover the cutting thread in a vertical manner. The bit structure improvement according to claim 1, wherein the connecting member is not limited to a hexagon.