CN223382644U - A cold twist drill for easy drill bit replacement - Google Patents
A cold twist drill for easy drill bit replacementInfo
- Publication number
- CN223382644U CN223382644U CN202422569463.1U CN202422569463U CN223382644U CN 223382644 U CN223382644 U CN 223382644U CN 202422569463 U CN202422569463 U CN 202422569463U CN 223382644 U CN223382644 U CN 223382644U
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- drill bit
- connecting sleeve
- drill
- threaded
- groove
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Abstract
本实用新型公开了一种便于更换钻头的冷麻花钻，包括钻头、钻头安装座，所述钻头上方设置有第一连接套，所述钻头安装座下方设置有第二连接套，所述钻头顶部设置有第一安装柱，所述第一连接套底部内侧设置有限位槽，所述钻头安装座底部设置有第二安装柱，所述第二安装柱底部设置有螺纹柱，所述第二连接套内部设置有螺纹槽，本实用新型：钻头在进行安装时，第一安装柱安装在第一连接套中，通过螺纹槽连接螺纹柱，从而使第二连接套连接钻头安装座，从而完成冷麻花钻的组装，反之方便进行拆卸，该结构拆装起来较为方便，并且通过螺纹固定在钻头安装座上，从而达到更好的安装效果，可有效避免安装位置偏移或者安装松弛的情况。
The utility model discloses a cold twist drill which is convenient for replacing drill bits, comprising a drill bit and a drill bit mounting seat, a first connecting sleeve being provided above the drill bit, a second connecting sleeve being provided below the drill bit mounting seat, a first mounting post being provided on the top of the drill bit, a limiting groove being provided on the inner side of the bottom of the first connecting sleeve, a second mounting post being provided at the bottom of the drill bit mounting seat, a threaded post being provided at the bottom of the second mounting post, and a threaded groove being provided inside the second connecting sleeve. According to the utility model, when the drill bit is installed, the first mounting post is installed in the first connecting sleeve, and the threaded post is connected through the threaded groove, so that the second connecting sleeve is connected to the drill bit mounting seat, thereby completing the assembly of the cold twist drill, and vice versa, it is convenient to disassemble. This structure is convenient to assemble and disassemble, and is fixed to the drill bit mounting seat through threads, thereby achieving a better installation effect, and can effectively avoid the situation where the installation position is offset or the installation is loose.
Description
Technical Field
The utility model relates to the technical field of twist drills, in particular to a cold twist drill with a drill bit convenient to replace.
Background
Cold twist drills are tools for drilling holes in metals and other materials and are characterized by one or two helically intersecting holes in the shank of the drill to the cutting edge, which holes can be used to cool the tool and workpiece by compressed air, oil or cutting fluid and to assist in flushing away the chips. The cold twist drill is particularly suitable for deep hole high speed machining because it can maintain a low cutting temperature during drilling, thereby reducing tool wear and extending service life.
The existing cold twist drills are usually required to be cleaned and maintained after being used for a long time, so that the cold twist drills are required to be disassembled, but the existing cold twist drills are usually troublesome to disassemble and are usually fixed through a clamping mechanism, and when the cold twist drills are installed, the condition that the installation position is deviated or the installation is loose can occur, so that the use is affected.
Disclosure of utility model
The utility model aims to provide a cold twist drill with a drill bit convenient to replace, so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a cold twist drill convenient to change drill bit, includes drill bit body, drill bit mount pad, drill bit body top is provided with first adapter sleeve, the drill bit mount pad below is provided with the second adapter sleeve, first adapter sleeve is hollow design with the second adapter sleeve, drill bit body top is provided with first erection column, first adapter sleeve bottom inboard is provided with the spacing groove, first erection column card is on the spacing groove, drill bit mount pad bottom is provided with the second erection column, second erection column bottom is provided with the screw thread post, second adapter sleeve inside is provided with the screw thread groove, the screw thread groove is threaded connection with the screw thread post.
In a preferred embodiment of the present utility model, the top of the first mounting column is provided with a hexagonal opening, and the bottom of the threaded column is provided with a hexagonal bolt, and the hexagonal bolt is in sliding connection with the hexagonal opening.
In a preferred embodiment of the present utility model, clamping grooves are provided on two sides of the limiting groove, clamping blocks are provided on two sides of the bottom of the first mounting column, and the clamping blocks are in sliding connection with the clamping grooves.
In a preferred embodiment of the utility model, a limiting ring is arranged on the outer side of the top of the first connecting sleeve, an annular groove is arranged on the inner side of the bottom of the second connecting sleeve, and the limiting ring is movably connected with the annular groove.
In a preferred embodiment of the utility model, two sides of the top of the second connecting sleeve are provided with screw holes, bolts are arranged in the screw holes, and the bolts are in threaded connection with the screw holes.
In a preferred embodiment of the utility model, a clamping bolt is arranged on the inner side of the bolt, bayonets are arranged on two sides of the second mounting column, and the clamping bolt is movably connected with the bayonets.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
The novel cold twist drill has the advantages that when the drill bit is installed, the first installation column is installed in the first connection sleeve and clamped on the clamping groove through the clamping block, so that the drill bit is clamped, the threaded column is connected through the threaded groove, so that the second connection sleeve is connected with the drill bit installation seat, and when the novel cold twist drill is connected, the hexagonal opening is connected through the hexagonal bolt, so that the drill bit is connected with the drill bit installation seat, the assembly of the cold twist drill is completed, the disassembly is convenient, the structure is convenient to disassemble and assemble, and the novel cold twist drill is fixed on the drill bit installation seat through threads, so that a better installation effect is achieved, and the situation of deviation of an installation position or loose installation can be effectively avoided.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a main body structure of a cold twist drill with a drill bit convenient to replace;
FIG. 2 is a schematic diagram of a connection structure between a drill bit and a drill bit mounting seat in a cold twist drill for facilitating the replacement of the drill bit;
FIG. 3 is a schematic view of a first coupling sleeve of a twist cold drill for facilitating bit replacement;
fig. 4 is a schematic view of a second connecting sleeve structure in a cold twist drill for facilitating bit replacement.
1, A drill bit body; 11, a first mounting column, 12, a hexagonal port, 13, a clamping block, 2, a drill bit mounting seat, 21, a second mounting column, 22, a threaded column, 23, a hexagonal bolt, 24, a bayonet, 3, a first connecting sleeve, 31, a limit groove, 32, a clamping groove, 33, a limit ring, 34, an annular groove, 4, a second connecting sleeve, 41, a threaded groove, 42, a screw port, 43, a bolt, 44 and a clamping bolt.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Embodiment one:
Referring to fig. 1-4, the cold twist drill with easy bit replacement of the present utility model includes a drill body 1 and a drill mounting seat 2, wherein the drill body 1 is a main body of the cold twist drill, the drill mounting seat 2 is a mounting structure of the cold twist drill and drives the cold twist drill to rotate, a first connecting sleeve 3 is arranged above the drill body 1, a second connecting sleeve 4 is arranged below the drill mounting seat 2, the first connecting sleeve 3 and the second connecting sleeve 4 are hollow, the first connecting sleeve 3 and the second connecting sleeve 4 are of a connecting structure, i.e. the drill body 1 and the drill mounting seat 2 are connected and mounted through the first connecting sleeve 3 and the second connecting sleeve 4, thereby completing the assembly of the cold twist drill, the top of the drill body 1 is provided with a first mounting post 11, the bottom of the drill mounting seat 2 is provided with a second mounting post 21, the first mounting post 11 is a mounting structure of the drill body 1, and the second mounting post 21 is a mounting structure of the drill mounting seat 2.
The outside of the top of the first connecting sleeve 3 is provided with a limiting ring 33, the inside of the bottom of the second connecting sleeve 4 is provided with an annular groove 34, the limiting ring 33 is movably connected with the annular groove 34, namely, the limiting ring 33 is clamped on the annular groove 34 and moves, so that the second connecting sleeve 4 is connected with the first connecting sleeve 3, the second connecting sleeve 4 can rotate, the inside of the bottom of the first connecting sleeve 3 is provided with a limiting groove 31, two sides of the limiting groove 31 are provided with clamping grooves 32, two sides of the bottom of the first mounting column 11 are provided with clamping blocks 13, the clamping blocks 13 are in sliding connection with the clamping grooves 32, and when the drill bit body 1 is mounted, the first mounting column 11 is clamped on the limiting groove 31 by inserting the drill bit body 1 from the upper side of the second connecting sleeve 4, namely, the first mounting column 11 is mounted in the first connecting sleeve 3 and clamped on the clamping groove 32 by the clamping blocks 13, so that the drill bit body 1 is clamped.
The bottom of the second mounting column 21 is provided with a threaded column 22, the inside of the second connecting sleeve 4 is provided with a threaded groove 41, the threaded groove 41 is in threaded connection with the threaded column 22, the top of the first mounting column 11 is provided with a hexagonal opening 12, the bottom of the threaded column 22 is provided with a hexagonal bolt 23, the hexagonal bolt 23 is in sliding connection with the hexagonal opening 12, namely, the bottom of the drill bit mounting seat 2 is abutted through the second connecting sleeve 4, the threaded column 22 is connected through the threaded groove 41, so that the second connecting sleeve 4 is connected with the drill bit mounting seat 2, and when the second connecting sleeve 4 is connected, the hexagonal bolt 23 is connected with the hexagonal opening 12, and the second connecting sleeve 4 rotates on the first connecting sleeve 3, so that the drill bit body 1 is connected with the drill bit mounting seat 2, the assembly of the cold twist drill is completed, the threaded direction of the threaded groove 41 is opposite to the rotation direction of the cold twist drill, so that the cold twist drill is prevented from falling off when in use, and the structure is convenient to disassemble and assemble and disassemble.
Embodiment two:
Referring to fig. 2 and 4, two sides of the top of the second connecting sleeve 4 are provided with screw holes 42, bolts 43 are arranged in the screw holes 42, the bolts 43 are in threaded connection with the screw holes 42, clamping bolts 44 are arranged on the inner sides of the bolts 43, bayonets 24 are arranged on two sides of the second mounting column 21, the clamping bolts 44 are movably connected with the bayonets 24, the bolts 43 are of additional structures, the bolts can be detached when not needed, and when the screw direction of the screw grooves 41 is the same as the rotation direction of the twist drill, namely, the bolts 43 rotate in the screw holes 42, so that the clamping bolts 44 on two sides are clamped in the bayonets 24, and the structure is fixed.
The working principle of the utility model is that when the drill bit body 1 is installed, the drill bit body 1 is inserted from the upper part of the second connecting sleeve 4, so that the first mounting column 11 is clamped on the limiting groove 31, namely the first mounting column 11 is installed in the first connecting sleeve 3 and clamped on the clamping groove 32 through the clamping block 13, so that the drill bit body 1 is clamped, the bottom of the drill bit mounting seat 2 is abutted through the second connecting sleeve 4, the threaded column 22 is connected through the threaded groove 41, so that the second connecting sleeve 4 is connected with the drill bit mounting seat 2, and when the drill bit body is connected, the hexagonal hole 12 is connected through the hexagonal bolt 23, and the second connecting sleeve 4 rotates on the first connecting sleeve 3, so that the drill bit body 1 is connected with the drill bit mounting seat 2, thereby completing the assembly of the cold twist drill, and the threaded direction of the threaded groove 41 is opposite to the rotating direction of the cold twist drill, so that the cold twist drill is prevented from falling off when in use, and vice versa, the cold twist drill is convenient to detach.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (6)
1. The cold twist drill convenient for replacing a drill bit comprises a drill bit body (1) and a drill bit mounting seat (2) and is characterized in that a first connecting sleeve (3) is arranged above the drill bit body (1), a second connecting sleeve (4) is arranged below the drill bit mounting seat (2), the first connecting sleeve (3) and the second connecting sleeve (4) are in a hollow design, a first mounting column (11) is arranged at the top of the drill bit body (1), a limit groove (31) is formed in the inner side of the bottom of the first connecting sleeve (3), the first mounting column (11) is clamped on the limit groove (31), a second mounting column (21) is arranged at the bottom of the drill bit mounting seat (2), a threaded column (22) is arranged at the bottom of the second mounting column (21), a threaded groove (41) is formed in the second connecting sleeve (4), and the threaded groove (41) is in threaded connection with the threaded column (22).
2. A cold twist drill convenient for replacing a drill bit according to claim 1, characterized in that the top of the first mounting post (11) is provided with a hexagonal opening (12), the bottom of the threaded post (22) is provided with a hexagonal bolt (23), and the hexagonal bolt (23) is in sliding connection with the hexagonal opening (12).
3. The cold twist drill convenient for replacing a drill bit according to claim 1, wherein clamping grooves (32) are formed in two sides of the limiting groove (31), clamping blocks (13) are arranged on two sides of the bottom of the first mounting column (11), and the clamping blocks (13) are in sliding connection with the clamping grooves (32).
4. The cold twist drill convenient for replacing a drill bit according to claim 1, wherein a limiting ring (33) is arranged on the outer side of the top of the first connecting sleeve (3), an annular groove (34) is arranged on the inner side of the bottom of the second connecting sleeve (4), and the limiting ring (33) is movably connected with the annular groove (34).
5. The cold twist drill convenient for bit replacement according to claim 1, wherein screw holes (42) are formed in two sides of the top of the second connecting sleeve (4), bolts (43) are arranged in the screw holes (42), and the bolts (43) are in threaded connection with the screw holes (42).
6. The cold twist drill convenient for bit replacement according to claim 5, wherein a clamping bolt (44) is arranged on the inner side of the bolt (43), bayonets (24) are arranged on two sides of the second mounting column (21), and the clamping bolt (44) is movably connected with the bayonets (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422569463.1U CN223382644U (en) | 2024-10-24 | 2024-10-24 | A cold twist drill for easy drill bit replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422569463.1U CN223382644U (en) | 2024-10-24 | 2024-10-24 | A cold twist drill for easy drill bit replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223382644U true CN223382644U (en) | 2025-09-26 |
Family
ID=97129891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422569463.1U Active CN223382644U (en) | 2024-10-24 | 2024-10-24 | A cold twist drill for easy drill bit replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223382644U (en) |
-
2024
- 2024-10-24 CN CN202422569463.1U patent/CN223382644U/en active Active
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