CN210105762U

CN210105762U - Drill bit with chip removal function

Info

Publication number: CN210105762U
Application number: CN201920610494.3U
Authority: CN
Inventors: 王栎; 王仁久
Original assignee: Ningbo Aoge Machinery Co Ltd
Current assignee: Ningbo Aoge Machinery Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-02-21
Anticipated expiration: 2029-04-29

Abstract

The utility model provides a drill bit with chip removal function relates to the technical field of drill bit. The utility model provides a drill bit with chip removal function, it includes: the drill bit comprises a drill bit body, wherein a drill rod is fixedly arranged at the upper end of the drill bit body, the drill bit body comprises a diameter-retaining part, a chip removal plate is arranged outside the drill bit body, the upper end of the chip removal plate is connected with the diameter-retaining part, the lower end of the chip removal plate is connected with a cutting part, and a ventilation hole is formed in the position, close to the diameter-retaining part, of the lower end of the chip; the cutting part is arranged at the bottom end of the diameter-keeping part, at least two groups of cutter assemblies are detachably connected in the cutting part, the two cutter assemblies are rotationally symmetrical around the central axis of the drill rod, and an included angle is formed between each cutter assembly and the horizontal plane; adopt the technical scheme of the utility model the drill bit that has the chip removal function, the chip removal is convenient, and it is convenient, with low costs to change the part.

Description

Drill bit with chip removal function

Technical Field

The utility model relates to a technical field of drill bit, concretely relates to drill bit with chip removal function.

Background

In the prior art, commonly used drill bits are generally integrally cast, so the whole body is made of metal with higher cost so as to maintain the cutting strength. When the drill bit is used for a certain time, the cutting end of the drill bit is worn, and then the drill bit needs to be ground again. Since it is difficult to regrind the drill bit, the cost of grinding an old drill bit is higher than the cost of purchasing a new drill bit, and therefore, generally, after the cutting end is worn, the user often directly throws away the old drill bit, thereby wasting materials and money.

At present, some automatic chip removal drill bits that can replace cutting work portion have appeared to this kind of condition, this kind of drill bit is including boring the body and being fixed in the cutter head on this boring the cutting end of body, thereby this cutter head adopts the metal material that cutting strength is high to make, bore the body adopt ordinary steel to make can, thereby the use of high-quality steel has been saved, the cost is reduced, and use the certain time at the drill bit, the cutter head appears wearing and tearing the back, can also keep the working property of drill bit through changing the cutter head, compare traditional drill bit, the life of drill bit has been prolonged, the waste of money has been reduced.

However, the automatic chip removal drill bit still has a great problem that the performance of the drill bit is affected because chips are not completely removed during chip removal. And the locking hole for fixing is arranged on the cutter head of the cutter head, so that the height of the cutter head cannot be too small, the rotation angle of a chip groove arranged on the cutter head cannot be maximized, and the performance of the drill bit is influenced.

Disclosure of Invention

The utility model aims at having the poor problem of above-mentioned chip removal performance to current technique, designed a drill bit with chip removal function.

The purpose of the utility model can be realized by the following technical proposal: a drill bit with chip removal, comprising:

the drill bit comprises a drill bit body, wherein a drill rod is arranged at the upper end of the drill bit body, the drill bit body comprises a diameter-retaining part, at least two chip removal plates are arranged outside the drill bit body, the upper end of each chip removal plate is connected with the diameter-retaining part, and a vent hole is formed in the position, close to the diameter-retaining part, of the lower end of each chip removal plate;

the cutting portion is located the bottom of gauge portion, can dismantle in the cutting portion and be connected with two at least cutter unit spares, two cutter unit spares are rotational symmetry with the central axis of boring the stick, just cutter unit spares the contained angle with the horizontal plane.

Preferably, the drill rod is a hexagonal cylinder, and the middle of the drill rod is provided with a connecting bolt hole.

Preferably, two the chip removal board is with the central axis rotational symmetry of gauge, every the chip removal board all is the heliciform.

Preferably, each said cutter assembly comprises a plurality of cutter elements, each said cutter element being removably attachable to the chip portion.

Preferably, each cutter piece comprises a handle and a blade, and the blade is detachably connected with the handle.

Preferably, the upper end of the knife handle is provided with a connecting hole, and the cutting part is provided with a connecting hole corresponding to the connecting hole.

Preferably, the included angle ranges from 20 ° to 80 °.

The drill bit with the chip removing function has the advantages that:

1. the holes arranged on the chip removal plate discharge the scraps along the chip removal plate by using air pressure when the diamonds remove chips outwards, so that the soil scraps are prevented from being accumulated in the holes drilled by the drill bit.

2. When the drill bit breaks, the cutter assembly can be replaced, specifically, the cutter handle or the blade can be replaced, so that the cost of the drill bit is reduced, and the operation of people is facilitated.

Drawings

FIG. 1: the utility model discloses a drill bit front schematic diagram with chip removal function;

FIG. 2: the utility model discloses a drill bit side schematic diagram with chip removal function;

FIG. 3: the utility model discloses a drill bit cutter assembly with chip removal function;

Detailed Description

The technical solution of the present invention is further explained below with reference to the accompanying drawings and embodiments:

as shown in fig. 1 to 3: the utility model provides a drill bit with chip removal function, including drill bit body 100, the drill bit 110 of hexagonal cylinder is set firmly in the upper end of drill bit body 100, in the middle of the drill bit 110 has seted up in succession keyhole 111, drill bit body 100 includes gauge portion 130, drill bit body 100 is equipped with two at least chip removal boards 120 outward, two chip removal boards 120 are rotational symmetry with gauge portion 130 as the central axis, each chip removal board 120 all is the heliciform, the upper end of chip removal board 120 is connected with gauge portion 130, and chip removal board 120 lower extreme is close to gauge portion 130 and has seted up ventilation hole 121, in use, drill bit body 100 passes through the connection keyhole 111 on drill bit 110 and installs the drill bit on the equipment that uses this drill bit, therefore, when the equipment that is applicable to this drill bit drives the high-speed rotation of drill bit, some air will pass the ventilation hole, make near ventilation hole produce certain wind pressure, in addition, another part's air will be the heliciform along the orbit of chip removal board and, and the air pressure at the ventilation hole forces the scraps cut by the cutter assembly 210 to be discharged along the scrap discharge plate 120, thereby preventing the scraps from being accumulated.

The bottom of gauge portion 130 is located to cutting portion 200, can dismantle in cutting portion 200 and be connected with two at least cutter unit spare 210, two cutter unit spare 210 are rotational symmetry with the central axis of drill rod 110, cutter unit spare 210 all includes a plurality of cutter pieces 211, every cutter piece 211 all can be dismantled and connect in cutting portion, every cutter piece 211 all includes handle of a knife 211a and blade 211b, blade 211b is connected for dismantling with handle of a knife 211a, handle of a knife 211a upper end is equipped with connecting hole 211c, set up the connecting hole who corresponds the connecting hole on the cutting portion, during the installation, connecting hole 220 threaded connection on connecting hole 211c and the cutting portion 200 through the bolt.

Further, the cutting blade 211 is in threaded connection with the connecting hole 220 on the cutting portion 200 through the connecting hole 211c on the handle 211a, and the blade 211b is detachably connected with the handle 211a, so that when the handle or the blade 211b is damaged, the corresponding handle or the blade 211b can be replaced to achieve continuous use of the drill bit.

In addition, an included angle is formed between the cutter assembly 210 and the horizontal plane, specifically, the included angles between each cutter element installed on the cutting part and the horizontal plane are different, and the included angle is gradually increased from inside to outside from one end of the cutting part close to the diameter-protecting part, and the included angle ranges from 20 degrees to 80 degrees, so that the cutting range of the drill bit is increased; secondly, the blade 211b is set to a certain angle, so that the drill bit can cut more efficiently during cutting.

Compared with the prior art, the utility model discloses a setting is the heliciform, and use gauge portion 130 to be two chip removal boards 120 of rotational symmetry for the central axis, and the wind pressure that produces when rotatory through drill bit itself, the sweeps that produces when will cutting are discharged along chip removal board 120, avoid piling up of sweeps, influence the efficiency of cutting, also make the design of drill bit itself tend to the optimization, and cutter unit spare 210 detachable design, under the condition that drill bit itself does not break down, only need through the cutter unit spare 210 who changes the correspondence, just can make the drill bit continue to drop into use, the work efficiency is greatly improved, and simultaneously, the cost is also reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications and additions may be made to the described embodiments by those skilled in the art, and they may be substituted in a similar manner, without departing from the spirit of the invention or exceeding the scope thereof as defined in the appended claims.

Claims

1. The utility model provides a drill bit with chip removal function which characterized in that includes:

2. The drill bit with the chip removal function according to claim 1, wherein: the drill rod is a hexagonal cylinder, and the middle of the drill rod is provided with a connecting bolt hole.

3. The drill bit with the chip removal function according to claim 1, wherein: two the central axis rotational symmetry of chip removal board with the gauge portion, every the chip removal board all is the heliciform.

4. The drill bit with the chip removal function according to claim 1, wherein: each of the cutter assemblies includes a plurality of cutter elements, each of which is removably attachable to the chip portion.

5. The drill bit with the chip removal function according to claim 4, wherein: each cutter piece all includes handle of a knife and blade, the blade is for dismantling the connection with the handle of a knife.

6. The drill bit with the chip removal function according to claim 5, wherein: the upper end of the knife handle is provided with a connecting hole, and the cutting part is provided with a connecting hole corresponding to the connecting hole.

7. The drill bit with the chip removal function according to claim 1, wherein: the included angle ranges from 20 degrees to 80 degrees.