阅读说明：本技术 一种新型钻头装置 (Novel drill bit device ) 是由 何征勃 于 2021-09-03 设计创作，主要内容包括：本发明公开一种新型钻头装置,包括钻头结构、主轴结构和自锁结构,所述钻头结构连接在所述主轴结构的第一端；所述自锁结构包括限位体和自锁体,所述自锁体套接在所述主轴结构上并且靠近所述钻头结构；所述限位体的第一端穿过所述主轴结构且与所述钻头结构连接,所述限位体的第二端与所述自锁体连接,以使得所述钻头结构可拆卸自锁在所述主轴结构的第一端。本发明的技术方案可以实现钻头结构的安全拆卸替换和安装,提高使用的安全性能。(The invention discloses a novel drill bit device which comprises a drill bit structure, a main shaft structure and a self-locking structure, wherein the drill bit structure is connected to the first end of the main shaft structure; the self-locking structure comprises a limiting body and a self-locking body, and the self-locking body is sleeved on the main shaft structure and is close to the drill bit structure; the first end of the limiting body penetrates through the main shaft structure and is connected with the drill bit structure, and the second end of the limiting body is connected with the self-locking body, so that the drill bit structure can be detachably self-locked at the first end of the main shaft structure. The technical scheme of the invention can realize safe disassembly, replacement and installation of the drill bit structure and improve the use safety performance.)

1. A novel drill bit device is characterized by comprising a drill bit structure, a main shaft structure and a self-locking structure, wherein the drill bit structure is connected to a first end of the main shaft structure; the self-locking structure comprises a limiting body and a self-locking body, and the self-locking body is sleeved on the main shaft structure and is close to the drill bit structure; the first end of the limiting body penetrates through the main shaft structure and is connected with the drill bit structure, and the second end of the limiting body is connected with the self-locking body, so that the drill bit structure can be detachably self-locked at the first end of the main shaft structure.

2. The novel drill bit assembly of claim 1, wherein the first end of the spindle structure is provided with a first assembly channel for mounting the drill bit structure; the main shaft structure is provided with a limiting channel, the limiting channel and the first assembling channel are distributed in an inclined mode and are communicated, and the limiting channel is used for limiting and connecting the limiting body.

3. The novel drilling head device as claimed in claim 2, wherein the first end of the position limiting body passes through the inner wall of the position limiting channel and extends to the first end limit connection of the first assembling channel, and the second end of the position limiting body extends to the self-locking body and is in limit connection with the self-locking body.

4. The novel drill bit assembly of claim 3, wherein the drill bit structure includes a first mounting portion, the first mounting portion being attached to a first end of the drill bit structure; the drill bit structure is characterized in that an assembly groove is formed in the first assembly portion, the first end of the first assembly portion penetrates through the inner wall of the first assembly channel, and the limiting body extends to the assembly groove and is in limiting connection with the first assembly portion so that the drill bit structure is in limiting connection with the main shaft structure.

5. The novel drill bit device as claimed in claim 4, wherein the assembling groove is an assembling groove which is inclined from the first assembling passage towards the inner end of the first assembling portion and has a height which is higher at one end close to the first assembling passage than at one end close to the first assembling portion, and the limiting body is in limit connection with the assembling groove at one end with a lower height topography.

6. The novel drilling bit device as claimed in claim 2, wherein the spindle structure comprises a second assembling portion and a second engaging portion, a first end of the second engaging portion is fixedly connected with a second end of the second assembling portion, the first assembling channel is located in the middle of the second assembling portion and penetrates through the first end of the second assembling portion, the limiting channel is located on the second assembling portion, and the second assembling portion is movably connected with the self-locking body in a sleeved manner.

7. The novel drill bit assembly of claim 1, wherein the spindle structure further comprises a drill shaft, a first end of the drill shaft being connected to a second end of the second engagement portion.

8. The novel drill bit device as claimed in claim 2, wherein the limiting body comprises a limiting inner part and a limiting outer part, and a first end of the limiting outer part is connected with a first end of the limiting inner part; the second end of the limiting inner part penetrates through the limiting channel, extends to the first assembling channel and is in limiting connection with the drill bit structure, and the second end of the limiting outer part extends to the inner wall of the self-locking body and is in limiting connection with the self-locking body, so that the drill bit structure and the spindle structure are in self-locking connection.

9. The novel drilling head device as claimed in claim 1, wherein the self-locking body comprises a self-locking body movable part and a self-locking body outer shell, the outer wall end of the self-locking body movable part is fixedly connected with the inner wall end of the self-locking body outer shell, the inner wall of the self-locking body movable part is provided with a second assembling channel, the second assembling channel is slidably connected to the main shaft structure, and the second assembling channel is used for being in limit connection with the limiting body.

10. The novel drilling head device of claim 1, wherein the self-locking structure further comprises an elastic member, a first end of the self-locking structure is connected with the main shaft structure, and a second end of the self-locking structure is connected with the self-locking body.

Technical Field

The invention relates to the technical field of drill bits, in particular to a novel drill bit device.

Background

An electric drill is a common tool for drilling, screwing and screwing in the mechanical industry, the building industry and the decoration industry. The nineteenth century, the aldrich Arthur and William Blanch Brain, combined the motor and drill, and invented the earliest drill. In 1889, the portable electric drill was invented by Wilhelm Fein, Melbourne, Australia. In 1917, Black and Decker, Germany invented an electric drill with a pistol grip and trigger. Such electric drills with triggers continue to be used today. The drill bit is typically a drill bit or a hole cutter on a drill to cut a circular hole. The basic principle of the drill bit is to rotate the edge cutting of the drill bit, cut a workpiece and remove drill cuttings through a drill slot. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills. Reamers and reamers are not capable of drilling solid materials, but are traditionally classified as drills.

The drill bit clamping devices used by the existing electric drill and the existing air drill are all old drill chucks and are fixedly connected with a fixed tip and a limiting block in an extruding way through a movable sleeve. When the drill bit is replaced, the drill bit can be clamped and loosened only by applying force, and meanwhile, the drill bit needs to be screwed by a bolt in a rotating mode from the side face, and the cutting phenomenon can also occur in the replacement and screwing process, so that the efficiency and the safety are not high.

Disclosure of Invention

The invention mainly aims to provide a novel drill bit device, aiming at improving the use safety performance.

The above problems to be solved by the present invention are achieved by the following technical solutions:

a novel drill bit device comprises a drill bit structure, a main shaft structure and a self-locking structure, wherein the drill bit structure is connected to a first end of the main shaft structure; the self-locking structure comprises a limiting body and a self-locking body, and the self-locking body is sleeved on the main shaft structure and is close to the drill bit structure; the first end of the limiting body penetrates through the main shaft structure and is connected with the drill bit structure, and the second end of the limiting body is connected with the self-locking body, so that the drill bit structure can be detachably and self-locked at the first end of the main shaft structure.

Preferably, a first end of the main shaft structure is provided with a first assembling channel, and the first assembling channel is used for installing the drill bit structure; the main shaft structure is provided with a limiting channel, the limiting channel and the first assembling channel are distributed in an inclined mode and communicated, and the limiting channel is used for limiting and connecting the limiting body.

Preferably, the first end of the limiting body passes through the inner wall of the limiting channel and extends to the first end of the first assembling channel for limiting connection, and the second end of the limiting body extends to the self-locking body and is in limiting connection with the self-locking body.

Preferably, the drill bit structure comprises a first mounting portion connected to a first end of the drill bit structure; the drill bit structure is characterized in that an assembly groove is formed in the first assembly portion, the first end of the first assembly portion penetrates through the inner wall of the first assembly channel, and the limiting body extends to the assembly groove and is in limiting connection with the first assembly portion so that the drill bit structure is in limiting connection with the main shaft structure.

Preferably, the assembling groove is inclined from the first assembling channel towards the inner end of the first assembling portion, the height of one end close to the first assembling channel is higher than that of one end close to the first assembling portion, and the limiting body is in limited connection with the assembling groove at the end with a lower height.

Preferably, the spindle structure includes a second assembling portion and a second engaging portion, a first end of the second engaging portion is fixedly connected to a second end of the second assembling portion, the first assembling channel is located in a middle of the second assembling portion and passes through a first end of the second assembling portion, the limiting channel is located on the second assembling portion, and the second assembling portion is used for being movably connected to the self-locking body in a sleeved manner.

Preferably, the spindle structure further comprises a drill shaft, a first end of the drill shaft being connected to a second end of the second engagement portion.

Preferably, the limiting body comprises a limiting inner part and a limiting outer part, and the first end of the limiting outer part is connected with the first end of the limiting inner part; the second end of the limiting inner part penetrates through the limiting channel to extend to the first assembling channel and is in limiting connection with the drill bit structure, and the second end of the limiting outer part extends to the inner wall of the self-locking body and is in limiting connection with the self-locking body, so that the drill bit structure and the spindle structure are in self-locking connection.

Preferably, the self-locking body comprises a self-locking body moving part and a self-locking body outer shell, the outer wall end of the self-locking body moving part is fixedly connected with the inner wall end of the self-locking body outer shell, a second assembling channel is arranged on the inner wall of the self-locking body moving part, and the second assembling channel is connected to the spindle structure in a sliding mode and used for being connected with the limiting body in a limiting mode.

Preferably, the self-locking structure further comprises an elastic part, a first end of the self-locking structure is connected with the main shaft structure, and a second end of the self-locking structure is connected with the self-locking body.

Has the advantages that: according to the technical scheme, the self-locking body is sleeved on and penetrates through the drill bit structure, then the main shaft structure is connected to the main shaft structure, and then the first end and the second end of the limiting body are respectively connected with the drill bit structure and the self-locking body to form self-locking connection of the drill bit structure and the main shaft structure, so that the drill bit device with improved replacement speed and stronger structural stability is formed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic diagram of an exploded structure of a novel drill bit device according to the present invention.

Fig. 2 is a schematic view of the structure of the drill bit of the novel drill bit device.

Fig. 3 is a schematic structural diagram of a self-locking body of the novel drilling bit device.

Fig. 4 is a schematic view of a main shaft structure of a novel drill bit device according to the present invention.

Fig. 5 is a schematic structural diagram of a limiting body of the novel drill bit device according to the present invention.

The reference numbers illustrate: 1-a drill bit structure; 11-a drill head; 12-a first engagement portion; 13-a first fitting part; 131-an assembly groove; 2-a main shaft structure; 21-a limiting channel; 22-a first assembly channel; 23-a second fitting part; 231-buffer inner grooves; 24-a second engagement; 241-an assembly boss; 25-a drill shaft rod; 3-self-locking structure; 31-a limiting body; 311-limiting the inside; 312-a stop outer portion; 3121-assembling a cambered surface; 32-self-locking body; 320-a second assembly channel; 321-the self-locking body movable part; 322-self-locking body outer housing; 33-elastic element.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a novel drill bit device.

As shown in fig. 1, in one embodiment of the present invention, the novel drill bit assembly; the self-locking drill bit comprises a drill bit structure 1, a main shaft structure 2 and a self-locking structure 3, wherein the drill bit structure 1 is connected to a first end of the main shaft structure 2; the self-locking structure 3 comprises a limiting body 31 and a self-locking body 32, and the self-locking body 32 is sleeved on the main shaft structure 2 and is close to the drill bit structure 1; the first end of the limiting body 31 penetrates through the main shaft structure 2 and is connected with the drill bit structure 1, and the second end of the limiting body 31 is connected with the self-locking body 32, so that the drill bit structure 1 can be detached and self-locked at the first end of the main shaft structure 2.

According to the technical scheme, the self-locking body is sleeved on and penetrates through the drill bit structure, then the main shaft structure is connected to the main shaft structure, and then the first end and the second end of the limiting body are respectively connected with the drill bit structure and the self-locking body to form self-locking connection of the drill bit structure and the main shaft structure, so that the drill bit device with high replacement speed and high use safety performance is formed.

Specifically, as shown in fig. 1, a first end of the main shaft structure 2 is provided with a first assembling passage 22, and the first assembling passage 22 is used for installing the drill bit structure 1; the main shaft structure 2 is provided with a limiting channel 21, the limiting channel 21 and the first assembling channel 22 are distributed in an inclined manner and communicated, and the limiting channel 21 is used for limiting and connecting the limiting body 31.

In the present embodiment, the limiting channel 21 and the first assembling channel 22 are vertically distributed and communicated; through the vertically distributed limiting channels and the first assembling channels, the limiting stress borne by the limiting body in the limiting process and the acting force on the main shaft structure can be decomposed to the minimum, and therefore the structural stability is further guaranteed.

Specifically, in one embodiment, a first end of the stopper body 31 passes through the inner wall of the stopper passage 21 and extends to a first end of the first assembling passage 22 for stopper connection, and a second end of the stopper body 31 extends to the self-locking body 32 and is connected to the self-locking body 32 for stopper connection. The safe replacement effect of the stable drill bit device is enhanced.

Specifically, as shown in fig. 2, the drill structure 1 includes a first fitting portion 13, and the first fitting portion 13 is connected to a first end of the drill structure 1; the first assembling portion 13 is provided with an assembling groove 131, the first end of the first assembling portion 13 penetrates through the inner wall of the first assembling passage 22, and the limiting body 31 extends to the assembling groove 131 and is in limiting connection with the first assembling portion 13 so that the drill bit structure 1 is in limiting connection with the spindle structure 2. The flexibility and the steadiness of changing the drill bit device are improved through the first assembling part and the assembling groove thereof, and the use safety performance is improved.

In one embodiment, as shown in fig. 2, the mounting groove 131 is a mounting groove inclined from the first mounting channel 22 toward the inner end of the first mounting portion 13, and the height of the mounting groove is higher at the end close to the first mounting channel 22 than at the end close to the first mounting portion 13, and the stopper 31 is connected to the mounting groove at the lower end of the mounting groove. During the installation, first assembly portion along first assembly passageway inserts, then passes spacing passageway through the spacing body and passes to the assembly chute, and the self-locking body that is following to sliding removes extremely the second of the spacing body is divided, makes the upper and lower both ends of the spacing body carry out spacing connection through self-locking body inner wall and assembly chute to make the drill bit structure with main shaft structure auto-lock is connected, improves auto-lock stability and operation flexibility and efficiency, improves and dismantles the installation effectiveness.

Specifically, as shown in fig. 2, the drill bit structure 1 further includes a drill bit portion 11 and a first engagement portion 12, a first end of the first engagement portion 12 is fixedly connected with a second end of the first mounting portion 13, and a second end of the first engagement portion 12 is fixedly connected with a first end of the drill bit portion 11; the outer wall of the first engaging part 12 is closely attached to the inner wall of the first fitting channel 22; the stability of the connection assembly of the drill bit structure and the main shaft structure is guaranteed, and the stability of the structure is improved.

Specifically, as shown in fig. 4, the spindle structure 2 includes a second assembling portion 23 and a second engaging portion 24, a first end of the second engaging portion 24 is fixedly connected to a second end of the second assembling portion 23, the first assembling channel 22 is located in a middle portion of the second assembling portion 23 and passes through a first end of the second assembling portion 23, the limiting channel 21 is located on the second assembling portion 23, and the second assembling portion 23 is configured to be movably sleeved with the self-locking body 32.

As shown in fig. 4, a buffering inner groove 231 is formed at the side end of the second assembling portion 23, the limiting passage 21 is located in the buffering inner groove 231, and the limiting body 31 extends out of the tangential connection of the second end of the limiting passage 21, so that the flexibility and stability of limiting connection between the self-locking body and the limiting body are guaranteed, and the rapidity of disassembly and assembly of the drill bit state is improved.

Specifically, as shown in fig. 4, the spindle structure 2 further includes a drill shaft 25, and a first end of the drill shaft 25 is connected to a second end of the second engagement portion 24.

The length of the spindle structure 2 is 227.5mm in the present embodiment.

Specifically, as shown in fig. 5, the position-limiting body 31 includes a position-limiting inner part 311 and a position-limiting outer part 312, and a first end of the position-limiting outer part 312 is connected to a first end of the position-limiting inner part 311; the second end of the limiting inner part 311 passes through the limiting passage 21, extends to the first assembling passage 22 and is in limiting connection with the drill bit structure 1, and the second end of the limiting outer part 312 extends to the inner wall of the self-locking body 32 and is in limiting connection with the self-locking body 32, so that the drill bit structure 1 and the spindle structure 2 are in self-locking connection.

In one embodiment, an assembling arc surface 3121 is protruded from the second end of the limiting outer portion 312, and an outer wall of the assembling arc surface 3121 is closely attached to an inner wall of the self-locking body 32.

Specifically, as shown in fig. 3, the self-locking body 32 includes a self-locking body moving portion 321 and a self-locking body outer shell 322, an outer wall end of the self-locking body moving portion 321 is fixedly connected with an inner wall end of the self-locking body outer shell 322, an inner wall of the self-locking body moving portion 321 is provided with a second assembling passage 320, the second assembling passage 320 is slidably connected to the main shaft structure 2, and the second assembling passage 320 is used for being in limit connection with the limiting body 31. The self-locking body movable part is driven to be connected in a sliding mode by a user pushing and pulling the self-locking body outer shell of the self-locking body, so that the self-locking body movable part can extrude the limiting body to push the limiting body into the inclined groove, and the drill bit structure 1 is connected with the main shaft structure 2 in a self-locking mode; when the disassembly is needed, otherwise, the operation is carried out.

Specifically, as shown in fig. 4, the self-locking structure 3 further includes an elastic member 33, a first end of the self-locking structure 3 is connected to the spindle structure 2, and a second end of the self-locking structure 3 is connected to the self-locking body; wherein, the elastic member 33 can be a spring.

Wherein, the second engaging portion 24 is provided with a fitting convex portion 241, and the fitting convex portion 241 is used for fitting and connecting the elastic member 33; the stability of the structure is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.