CN214161657U

CN214161657U - Composite thread drill bit

Info

Publication number: CN214161657U
Application number: CN202020947954.4U
Authority: CN
Inventors: 钟超; 汤康; 江旭辉
Original assignee: Jiangsu Qike Intelligent Technology Co ltd
Current assignee: Jiangsu Qike Intelligent Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-09-10
Anticipated expiration: 2030-05-29

Abstract

The invention discloses a composite threaded drill bit, belongs to the field of drill bit devices, and solves the problem that the process of drilling a composite threaded hole is complex and unstable in the prior art, and the technical scheme is as follows: a composite thread drill bit comprising: first drill bit, screw thread knob, second drill bit, the diameter of second drill bit is greater than the diameter of first drill bit, first drill bit afterbody is provided with the screw thread knob, the screw thread knob terminal surface is three leaf fan-shaped, the screw thread knob afterbody is provided with the connecting rod, the inside jack that is provided with of second drill bit, the connecting rod inserts in the jack, mainly used for boring get compound hole, simple structure convenient to use just once bore get just can, work efficiency is high.

Description

Composite thread drill bit

Technical Field

The invention relates to the field of drill bit devices, in particular to a composite threaded drill bit.

Background

The reason for the design of the invention is that: the prior drill bit has the following defects during drilling: when a composite hole is drilled, particularly, a deep small hole is drilled firstly, then a large hole is drilled at the periphery of the deep small hole, then a thread is drilled in the small hole, three drilling bits are needed after three processes, a small deep hole is drilled firstly, a large hole is drilled at the periphery of the small hole by using a large-diameter drilling hole, and then a thread is drilled in the small hole by using a thread drill, so that the time and the labor are consumed, the working efficiency is extremely low, the size is easy to generate and cheap, a waste hole is drilled, the strength of an object is low, the object is damaged and cannot be used, and the waste is caused.

Disclosure of Invention

The invention aims to provide a composite threaded drill bit, which solves the problems of complex and unstable procedures of drilling a composite threaded hole in the prior art, and has the technical effects that: simple structure convenient to use just once bores and gets, work efficiency is high.

In order to achieve the purpose, the invention adopts the following technical scheme:

a composite thread drill bit comprising: the drill bit comprises a first drill bit, a threaded knob and a second drill bit, wherein the diameter of the second drill bit is larger than that of the first drill bit, the tail of the first drill bit is provided with the threaded knob, the end face of the threaded knob is in a three-leaf sector shape, the tail of the threaded knob is provided with a connecting rod, an insertion hole is formed in the second drill bit, and the connecting rod is inserted into the insertion hole.

Further, the connecting rod is cuboid shape, connecting rod face is provided with the fixed orifices.

Further, the tail end of the second drill is provided with a bolt hole penetrating through the side face, a fixing bolt is arranged in the bolt hole, and the fixing bolt is connected with a fixing hole of a connecting rod inserted into the insertion hole.

Further, the first and second bit side portions are each of a helical shape.

Further, the thread button is in a cylindrical shape, and the side wall part of the fan blade of the thread button is provided with threads.

Further, the tail end of the second drill bit is provided with a jack groove, and the tail of the connecting rod is inserted into the jack groove.

Furthermore, the first drill bit, the thread button and the second drill bit are all made of stainless steel.

Further, the fixing bolt is in threaded connection with the bolt hole.

Has the advantages that: the difference between the invention and the prior art is that:

the invention has the advantages that the first drill bit and the second drill bit are connected through the connecting rod, the thread button is arranged between the first drill bit and the second drill bit, and the thread button is arranged on the side part of the fan-shaped blade, the diameter of the second drill bit is larger than that of the first drill bit, so that the effect is that: when the drill bit rotates together, the first drill bit drills a small hole, then the second drill bit drills a large hole on the basis of the small hole, and the side part of the drilled small hole is threaded due to the fact that the side part of the threaded knob is threaded, so that the bolt is convenient to install, and the drill bit is simple, convenient and fast and high in working efficiency.

Secondly, the invention inserts the connecting rod at the tail part of the thread button into the jack 7 and inserts the connecting rod into the bolt hole 8 through the fixing bolt 10 to further fix the fixing hole 6 on the connecting rod 5, and the effect is that: the first drill bit and the second drill bit are connected into a whole, and are convenient to connect, fix, install and replace.

Drawings

FIG. 1: is a structural schematic diagram of the invention;

FIG. 2: is a schematic view of the thread knot structure of the invention;

FIG. 3: is a schematic view of the connection structure of the invention;

FIG. 4: is a schematic structural view of a second drill bit of the invention;

reference numerals: the drilling tool comprises a first drill bit 1, a threaded knob 2, a second drill bit 3, a jack groove 4, a connecting rod 5, a fixing hole 6, a jack 7, a bolt hole 8 and a fixing bolt 10.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

A composite thread drill as shown in fig. 1-4, comprising: the drill comprises a first drill bit 1, a thread knob 2 and a second drill bit 3, wherein the diameter of the second drill bit 3 is larger than that of the first drill bit 1, so that the first drill bit 1 can conveniently drill a small hole, and the thread button 2 drills threads in the small hole, thereby further facilitating the second drill 3 to drill a large hole on the basis of the small hole, the tail part of the first drill bit 1 is provided with the threaded knob 2, the connection mode is an integral structure, the use is convenient, the operation is stable, the fracture cannot occur, the end surface of the thread knob 2 is in a three-leaf sector shape, the function is to facilitate the drilling of the thread and to lead the drilled debris to be discharged out of the drilled hole, the tail part of the threaded knob 2 is provided with a connecting rod 5, the connecting rod 5 and the threaded knob 2 are of an integrated structure, the function is that the use is convenient, the stability is realized, the fracture is avoided, the inside jack 7 that is provided with of second drill bit 3, connecting rod 5 inserts in jack 7, and the effect makes first drill bit 1, second drill bit 3 connect as an organic whole.

As shown in fig. 1 to 3, the connecting rod 5 is in a rectangular parallelepiped shape, the face of the connecting rod 5 is provided with a fixing hole 6, and the fixing hole 6 is in a circular shape and is internally provided with threads to facilitate connection of bolts.

As shown in fig. 1-3, the tail end of the second drill 3 is provided with a bolt hole 8 penetrating through the side surface, the bolt hole 8 and the second drill 3 are integrally formed, which is used for facilitating the connection of the bolt, a fixing bolt 10 is arranged in the bolt hole 8, the fixing bolt 10 is a bolt and is in threaded connection with the bolt hole 8, the fixing bolt 10 is connected with a fixing hole 6 inserted into the connecting rod 5 in the insertion hole 7 in a threaded connection manner, which is used for facilitating the connection of the first drill 1 and the second drill 3 into a whole and facilitating the installation and fixation.

As shown in fig. 1-4, the first drill bit 1 and the second drill bit 3 are both spiral-shaped on the sides, and the function is to facilitate drilling.

As shown in fig. 1-2, the threaded knob 2 is cylindrical, and the side wall of the fan blade of the threaded knob 2 is provided with threads for facilitating the drilling of threads in the small hole drilled by the first drill bit 1.

As shown in fig. 1 and 4, the tail end of the second drill bit 3 is provided with a jack slot 4, the jack slot 4 is in a cuboid shape and is in an integrally formed structure with the second drill bit 3, and the tail of the connecting rod 5 is inserted into the jack slot 4 so as to be integrally fixed and rotated.

As shown in fig. 1-4, the first drill bit 1, the threaded knob 2 and the second drill bit 3 are all made of stainless steel, and are firm, wear-resistant, convenient to use and not easy to deform.

Installation and use mode:

according to the invention, the connecting rod 5 at the tail part of the first drill bit 1 is inserted into the jack 7 of the second drill bit 3 and extends into the jack groove 4, and is inserted into the bolt hole 8 through the fixing bolt 10 for threaded connection, and simultaneously, the connecting rod 5 penetrates through the first drill bit 1 and the second drill bit 3 for threaded connection, so that the first drill bit 1 and the second drill bit 3 are connected into a whole, and an external motor is connected to rotate to drill a composite hole, wherein a small hole is formed in the large hole, and a thread is formed in the small hole, so that the drilling is simple, convenient and rapid.

In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation.

In the present invention, the terms "set", "install", "connect", "fix", etc. should be understood in a broad sense, for example, they may be fixed connection or detachable connection; may be a mechanical connection; can be directly connected, and the specific meaning of the terms in the invention can be understood according to specific situations by a person skilled in the art; the terms "first", "second", and "first" are used for descriptive purposes only and may refer to one or more of such features, and in the description of the invention "plurality" means two or more unless specifically limited otherwise.

The present invention is not limited to the above-described embodiments, and all changes that do not depart from the structure and action of this embodiment are intended to be within the scope of the invention.

Claims

1. The utility model provides a compound screw thread drill bit which characterized in that: the method comprises the following steps: first drill bit (1), screw knob (2), second drill bit (3), the diameter of second drill bit (3) is greater than the diameter of first drill bit (1), first drill bit (1) afterbody is provided with screw knob (2), screw knob (2) terminal surface is three leaf fan-shaped, screw knob (2) afterbody is provided with connecting rod (5), second drill bit (3) inside is provided with jack (7), connecting rod (5) insert in jack (7).

2. A composite thread drill according to claim 1, characterized in that: the connecting rod (5) is cuboid, and a fixing hole (6) is formed in the face of the connecting rod (5).

3. A composite thread drill according to claim 2, characterized in that: the tail end of the second drill bit (3) is provided with a bolt hole (8) penetrating through the side face, a fixing bolt (10) is arranged in the bolt hole (8), and the fixing bolt (10) is connected with a fixing hole (6) inserted into a connecting rod (5) in the insertion hole (7).

4. A composite thread drill according to claim 3, characterized in that: the side parts of the first drill bit (1) and the second drill bit (3) are both in a spiral shape.

5. A composite thread drill according to claim 4, characterized in that: the thread knob (2) is in a cylindrical shape, and threads are arranged on the fan blade side wall portion of the thread knob (2).

6. A composite thread drill according to claim 5, characterized in that: the tail end of the second drill bit (3) is provided with a jack groove (4), and the tail of the connecting rod (5) is inserted into the jack groove (4).

7. A composite thread drill according to claim 6, characterized in that: the first drill bit (1), the thread button (2) and the second drill bit (3) are all made of stainless steel.

8. A composite thread drill according to claim 7, characterized in that: the fixing bolt (10) is in threaded connection with the bolt hole (8).