CN212310937U

CN212310937U - Novel drill bit

Info

Publication number: CN212310937U
Application number: CN202020562059.0U
Authority: CN
Inventors: 曲振宝; 伍洲雅; 蔡云
Original assignee: Ningbo Gede Precision Tools Co ltd
Current assignee: Ningbo Gede Precision Tools Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-01-08
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a novel drill bit, which comprises an installation drill handle, a connection drill neck and a drill bit body, wherein one end of the installation drill handle is fixedly connected with the connection drill neck, one end of the connection drill neck is provided with an oblique arc opening, one side of the oblique arc opening is fixedly connected with a separation block, one end of the connection drill neck is fixedly connected with a tapping piece, the tapping piece is provided with a first spiral groove, one end of the first spiral groove is connected with the oblique arc opening, one side of the first spiral groove is connected with a first spiral drill pin, the novel drill bit drives the connection drill neck, the tapping piece, the hole expanding piece and the drill bit body to synchronously rotate through the installation drill handle, the hole expanding piece further expands the drilled hole, grinds the edge of the drilled hole by utilizing the chamfer, and connects the drill neck, the tapping piece, the hole expanding piece and the drill bit body, the functions of drilling, reaming, tapping and chamfering are completed in one step, and the working efficiency is high.

Description

Novel drill bit

Technical Field

The utility model relates to a drill bit technical field specifically is a novel drill bit.

Background

The drill bit is used for drilling a through hole or a blind hole in a solid material and can be used as a tool for reaming the existing hole, the commonly used drill bits mainly comprise a twist drill, a flat drill, a center drill, a deep hole drill and a trepanning drill, although the reaming drill and the countersink cannot drill holes in the solid material, the reaming drill and the countersink are also customarily classified into the drill bits, along with the development of the times, the use of the drill bits is more and more extensive, the types of the drill bits are more and more, however, most of the drill bits are easy to break or the blade point becomes blunt during working, the utilization rate is reduced, the working efficiency is low, the cost is improved, and how to improve the working efficiency and the utilization rate of the drill bits becomes the design key point of this time.

Disclosure of Invention

An object of the utility model is to provide a novel drill bit has drilling, reaming, tapping and chamfer combined function, and problem among the prior art has been solved to the advantage that work efficiency is high.

In order to achieve the above object, the utility model provides a following technical scheme: a novel drill bit comprises an installation drill handle, a connection drill neck and a drill bit body, wherein one end of the installation drill handle is fixedly connected with the connection drill neck, one end of the connection drill neck is provided with an oblique arc opening, one side of the oblique arc opening is fixedly connected with a separation block, one end of the connection drill neck is fixedly connected with a tapping piece, the tapping piece is provided with a first spiral groove, one end of the first spiral groove is connected with the oblique arc opening, one side of the first spiral groove is connected with a first spiral drill pin, the surface of the first spiral drill pin is provided with an external thread, one end of the tapping piece is fixedly connected with a hole expanding piece, the surface of the hole expanding piece is provided with second spiral grooves at equal intervals, one side of the second spiral groove is connected with a second spiral drill pin, one end, far away from the tapping piece, of the hole expanding piece is fixedly connected with one end of the drill bit body, the surface of the drill bit body is provided with a third spiral groove, and, one end of the drill bit body, which is far away from the hole expanding piece, is connected with a drill tooth.

Preferably, one end of the installation drill handle, which is far away from the drill neck, is provided with a groove, and the surface of the installation drill handle is of a rough surface structure.

Preferably, the circle centers of the installation drill handle, the connection drill neck, the tapping piece, the hole expanding piece and the drill bit body are all located on the same straight line, and the diameters of the installation drill handle, the connection drill neck, the tapping piece, the hole expanding piece and the drill bit body are reduced in sequence.

Preferably, one end of the spacer block is connected to one end of the first auger pin by a chamfer.

Preferably, the first spiral groove, the second spiral groove and the third spiral groove are all grooves with spiral structures, and the first spiral groove, the second spiral groove and the third spiral groove have the same rotation direction.

Preferably, the second helical flute extends into the bit body and communicates with the third helical flute.

Preferably, one side of each of the second auger pin and the third auger pin is connected with a sawtooth pattern, and the width of the second auger pin is greater than that of the third auger pin.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this novel drill bit, through the installation drillstock, connect and connect the brill neck, tapping spare, reaming piece and drill bit body, drive through the electric drill and connect the brill neck, tapping spare, reaming piece and drill bit body synchronous revolution, drill bit body drilling, reaming piece is to drilling further reaming, and tap the screw thread by tapping the piece to drilling, and utilize the chamfer to grind the edge of drilling flat, reach smooth surface's purpose, through connecting the brill neck, tapping spare, reaming piece and drill bit body, further accomplish drilling, reaming, the function of tapping and chamfer angle, work efficiency is high.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is an enlarged view of a of the present invention.

In the figure: 1. installing a drill handle; 11. a groove; 2. connecting a drill neck; 21. an oblique arc mouth; 22. a separation block; 221. chamfering; 3. tapping a screw member; 31. a first helical groove; 32. a first auger pin; 321. an external thread; 4. a reaming piece; 41. a second helical groove; 42. a second auger pin; 5. a drill bit body; 51. a third helical groove; 52. a third auger pin; 521. a sawtooth pattern; 53. and (6) drilling teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a novel drill bit comprises an installation drill handle 1, a connection drill neck 2 and a drill bit body 5, wherein one end of the installation drill handle 1 is fixedly connected with the connection drill neck 2, one end of the installation drill handle 1, which is far away from the connection drill neck 2, is provided with a groove 11, the surface of the installation drill handle 1 is of a rough surface structure, the groove 11 is used for positioning, the rough surface is easy to fix and convenient to install and is not easy to slip, one end of the connection drill neck 2 is provided with an inclined arc 21, one side of the inclined arc 21 is fixedly connected with a separation block 22, one end of the separation block 22 is connected with one end of a first spiral drill pin 32 through a chamfer 221, the chamfer 221 is of an inclined surface smooth structure, the chamfer 221 can be used for grinding the edge of a drill hole to achieve the purpose of smooth surface in the rotating process, one end of the connection drill neck 2 is fixedly connected with a threaded part 3, and a first spiral groove 31, one end of the first spiral groove 31 is connected with the inclined arc opening 21, one side of the first spiral groove 31 is connected with a first spiral drilling pin 32, the surface of the first spiral drilling pin 32 is provided with an external thread 321, the width of one end of the first spiral drilling pin 32 close to the reaming piece 4 is larger than that of the other end, the width of one end of the external thread 321 close to the reaming piece 4 is larger than that of the other end, one end of the tapping piece 3 is fixedly connected with the reaming piece 4, the surface of the reaming piece 4 is equidistantly provided with second spiral grooves 41, the second spiral grooves 41 extend to the drill bit body 5 and are communicated with third spiral grooves 51, the second spiral grooves 41 and the third spiral grooves 51 are used for discharging drilling slag, one side of the second spiral drilling pin 41 is connected with a second spiral drilling pin 42, one end of the reaming piece 4 far away from the tapping piece 3 is fixedly connected with one end of the drill bit body 5, the surface of the drill bit body 5 is, the first spiral groove 31, the second spiral groove 41 and the third spiral groove 51 are all grooves with a spiral structure, the first spiral groove 31, the second spiral groove 41 and the third spiral groove 51 have the same rotation direction, the first spiral groove 31, the second spiral groove 41 and the third spiral groove 51 synchronously rotate under the driving of the tapping part 3, the reaming part 4 and the drill bit body 5 to realize the operations of drilling, reaming and tapping, a third spiral drill pin 52 is connected among the third spiral grooves 51, one sides of the second spiral drill pin 42 and the third spiral drill pin 52 are both connected with a sawtooth grain 521, the sawtooth grain 521 is used for improving the sharpness of the drill pin, the width of the second spiral drill pin 42 is larger than that of the third spiral drill pin 52, the third spiral drill pin 52 drills a hole shape, the second spiral drill pin 42 further reams a hole to increase the diameter of the drilled hole, one end of the drill bit body 5 far away from the reaming part 4 is connected with teeth 53, the installation drillstock 1, connect the drill neck 2, attack screw member 3, the centre of a circle of reaming piece 4 and drill bit body 5 all is located same straight line, and the installation drillstock 1, connect the drill neck 2, attack screw member 3, the diameter of reaming piece 4 and drill bit body 5 reduces in proper order, installation drillstock 1, connect the drill neck 2, attack screw member 3, reaming piece 4 and drill bit body 5 synchronous revolution, and along with stretching into of drill bit, progressively impel reaming piece 4 and enlarge drilling, attack screw member 3 and lead the screw thread in the drilling after the reaming, lead flat drill way through chamfer 221 for drilling at last.

The working process is as follows: when the drilling tool is used, one end of the installation drill handle 1 is connected with an electric drill, when the electric drill works, the installation drill handle 1, the connection drill neck 2, the tapping part 3, the hole expanding part 4 and the drill bit body 5 are driven to rotate synchronously, the drill teeth 53 are firstly contacted with a wood board, the wood board is quickly drilled under the driving of the drill teeth 53 rotating at high speed, a third spiral drill pin 52 is connected between third spiral grooves 51, one sides of the second spiral drill pin 42 and the third spiral drill pin 52 are both connected with sawtooth patterns 521, the sawtooth patterns 521 are used for improving the sharpness of the drill pin and gradually pushing the drill bit body 5, the hole expanding part 4 further expands the drilled hole to increase the diameter of the drilled hole, when the tapping part 3 penetrates into the drilled hole, the tapping part 3 drives the external thread 321 to rotate to tap the side wall of the drilled hole, when the external thread 321 extends into the drilled hole, threads are left on the side wall of the drilled hole, the width of one end of the external thread 321 close to the hole expanding part 4 is larger, the external screw 321 width that is close to reaming piece 4 one end is great, can tap the screw fast, the end of reaming piece 4 is used for improving the screw thread fineness, after tapping the screw thread, grind the drilling edge through chamfer 221 and flatten, reach smooth surface's purpose, second helicla flute 41 and third helicla flute 51 are used for discharging the drilling sediment, the drilling is derived through first helicla flute 31 and oblique arc mouth 21 to the waste residue of drilling, along with drill bit body 5, reaming piece 4, tap the propulsion of screw piece 3 and connection drill neck 2, accomplish drilling, the reaming, tap the function of screw thread and chamfer.

In summary, the following steps: this novel drill bit, through installation drillstock 1, connect and connect brill neck 2, tapping piece 3, reaming piece 4 and drill bit body 5, drive through the electric drill and connect brill neck 2, tapping piece 3, reaming piece 4 and drill bit body 5 synchronous revolution, drill bit body 5 drilling, reaming piece 4 is to further reaming of drilling, and tap the screw thread by tapping piece 3 to drilling, and utilize chamfer 221 to grind the edge of drilling, reach smooth surface's purpose, through connecting brill neck 2, tapping piece 3, reaming piece 4 and drill bit body 5, further accomplish drilling, the reaming, the function of tapping and chamfer, work efficiency is high.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel drill bit, includes installation drillstock (1), connects drill neck (2) and drill bit body (5), its characterized in that: one end of the installation drill handle (1) is fixedly connected with the connection drill neck (2), one end of the connection drill neck (2) is provided with an inclined arc opening (21), one side of the inclined arc opening (21) is fixedly connected with a separation block (22), one end of the connection drill neck (2) is fixedly connected with a tapping part (3), the tapping part (3) is provided with a first spiral groove (31), one end of the first spiral groove (31) is connected with the inclined arc opening (21), one side of the first spiral groove (31) is connected with a first spiral drill pin (32), the surface of the first spiral drill pin (32) is provided with external threads (321), one end of the tapping part (3) is fixedly connected with a hole expanding part (4), the surface of the hole expanding part (4) is provided with second spiral grooves (41) at equal intervals, one side of the second spiral groove (41) is connected with a second spiral drill pin (42), one end of the hole expanding part (4) far away from the tapping part (3) is fixedly connected with one end of the drill bit body (5), the surface of the drill bit body (5) is provided with third spiral grooves (51), third spiral drilling pins (52) are connected between the third spiral grooves (51), and one end, far away from the hole expanding piece (4), of the drill bit body (5) is connected with drilling teeth (53).

2. The novel drill bit of claim 1, wherein: one end, far away from the drill neck (2), of the installation drill handle (1) is provided with a groove (11), and the surface of the installation drill handle (1) is of a rough surface structure.

3. The novel drill bit of claim 1, wherein: the circle centers of the installation drill handle (1), the connection drill neck (2), the tapping piece (3), the reaming piece (4) and the drill bit body (5) are all located on the same straight line, and the diameters of the installation drill handle (1), the connection drill neck (2), the tapping piece (3), the reaming piece (4) and the drill bit body (5) are reduced in sequence.

4. The novel drill bit of claim 1, wherein: one end of the separation block (22) is connected with one end of the first auger pin (32) through a chamfer (221).

5. The novel drill bit of claim 1, wherein: the first spiral groove (31), the second spiral groove (41) and the third spiral groove (51) are grooves with spiral structures, and the rotating directions of the first spiral groove (31), the second spiral groove (41) and the third spiral groove (51) are the same.

6. The novel drill bit of claim 1, wherein: the second helical groove (41) extends to the bit body (5) and communicates with the third helical groove (51).

7. The novel drill bit of claim 1, wherein: one sides of the second spiral drilling pin (42) and the third spiral drilling pin (52) are connected with sawtooth patterns (521), and the width of the second spiral drilling pin (42) is larger than that of the third spiral drilling pin (52).