CN209792696U - Drill bit switching device - Google Patents
Drill bit switching device Download PDFInfo
- Publication number
- CN209792696U CN209792696U CN201920001239.9U CN201920001239U CN209792696U CN 209792696 U CN209792696 U CN 209792696U CN 201920001239 U CN201920001239 U CN 201920001239U CN 209792696 U CN209792696 U CN 209792696U
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- drill bit
- adapter
- conical surface
- hexagonal
- hexagonal adapter
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Abstract
the utility model discloses a drill bit switching device, which comprises a drill bit; the hexagonal adapter is arranged at the tail part of the drill bit; the tail part of the drill bit is provided with two bayonets which are symmetrically arranged along the axis of the drill bit, the tail part of the drill bit is inserted into the hexagonal adapter, and a glue coating is arranged at a connecting gap; the inside lug that fills the bayonet socket that is equipped with of hexagonal adapter, the drill bit passes through conical surface cooperation with hexagonal adapter and links up. The utility model discloses promote the torsion of drill bit drilling in-process, solved the drill bit simultaneously and easily drove, the poor problem of drill bit and adapter concentricity.
Description
Technical Field
The utility model belongs to the technical field of machining, specifically speaking relates to a drill bit switching device.
background
When the drill bit is used for drilling, the drill bit is installed on a clamping jaw of a drilling machine, if the clamping is not tight, the drill bit and the clamping jaw can slip, or the hardness of a workpiece material needing drilling is high, the drill bit and the workpiece can also slip, a common solution is to install an adapter between the clamping jaw and the drill bit, but in the post-processing process of the existing adapter for installing the drill bit, the drill bit is easy to fall off when the clamping jaw is lifted, and the concentricity of the drill bit in the processing process can not be guaranteed due to the fact that the ore deposit between the drill bit and the adapter is easy to cause, so that the processing precision is too low.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that a drill bit switching device is provided, the defect of having solved prior art transfer joint existence causes the drill bit to drop easily and machining precision hangs down the problem of hanging down excessively.
In order to solve the technical problem, the utility model discloses a drill bit switching device, which comprises a drill bit; the hexagonal adapter is arranged at the tail part of the drill bit; the tail of the drill bit is provided with two bayonets which are symmetrically arranged along the axis of the drill bit; the tail part of the drill bit is inserted into the hexagonal adapter, and a glue coating is arranged at the connecting gap; a lug for filling the bayonet is arranged in the hexagonal adapter; the drill bit is matched and connected with the hexagonal adapter through a conical surface.
Further, the drill bit is provided with a first conical surface, and the first conical surface is positioned at one end of the bayonet.
Further, the hexagonal adapter is provided with a second tapered surface, and the second tapered surface is located at one end of the bump.
Further, the taper of the first conical surface and the second conical surface is 5 ~ 15 degrees.
Compared with the prior art, the application can obtain the following technical effects:
The first conical surface at the bayonet of the drill bit and the second conical surface at the lug inside the hexagonal adapter are matched to form a concentric positioning part, the concentric positioning part determines the concentricity of the drill bit and the adapter to improve the drilling precision, and the first conical surface and the second conical surface are fitted to increase the friction coefficient lifting torque between the first conical surface and the second conical surface; the torque force in the drilling process is improved by the matching of the bayonet and the lug and the hexagonal shape of the adapter; the volume of ore of drill bit and adapter junction has filled the glue coating, makes the drill bit be difficult for droing in the adapter.
Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a drill bit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hexagonal adapter according to an embodiment of the present invention;
Fig. 3 is a schematic view of a drill bit adapter according to an embodiment of the present invention.
Reference symbols of the drawings
The drilling bit 1, hexagonal adapter 2, bayonet 3, first oblique conical surface 4, lug 5, second conical surface 6.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
referring to fig. 1, 2 and 3, fig. 1 is a schematic view of a drill according to an embodiment of the present invention; fig. 2 is a schematic diagram of a hexagonal adapter according to an embodiment of the present invention; fig. 3 is a schematic view of a drill bit adapter according to an embodiment of the present invention. A drill bit switching device comprises a drill bit 1; a hexagonal adapter 2 mounted at the tail of the drill bit 1; the tail of the drill bit 1 is provided with two bayonets 3, and the two bayonets 3 are symmetrically arranged along the axis of the drill bit 1; the tail part of the drill bit 1 is inserted into the hexagonal adapter 2, and a glue coating is arranged at the connecting gap; the hexagonal adapter 2 is internally provided with a lug 5 for filling the bayonet 3.
One end of the bayonet 3 is provided with a first conical surface 4, and one end of the lug 5 is provided with a second conical surface 6; when the taper of the first conical surface and the second conical surface is 5 degrees, a layer of glue is coated on the tail of the drill bit 1, the drill bit is inserted into the hexagonal adapter 2, the two lugs 5 are clamped at the two bayonets 3, the first conical surface 4 of the bayonets 3 is attached to the second conical surface 6 of the lugs 5, the drill bit 1 and the hexagonal adapter 2 are positioned on the same axis, and the drill bit and the hexagonal adapter cannot fall off or skew after the glue is solidified.
When the taper of the first conical surface and the second conical surface is 10 degrees, a layer of glue is coated on the tail of the drill bit 1, the drill bit is inserted into the hexagonal adapter 2, the two lugs 5 are clamped at the two bayonets 3, the first conical surface 4 of the bayonets 3 is attached to the second conical surface 6 of the lugs 5, the drill bit 1 and the hexagonal adapter 2 are positioned on the same axis, and the drill bit and the hexagonal adapter cannot fall off or skew after the glue is solidified.
When the taper of the first conical surface and the second conical surface is 15 degrees, a layer of glue is coated on the tail of the drill bit 1, the drill bit is inserted into the hexagonal adapter 2, the two lugs 5 are clamped at the two bayonets 3, the first conical surface 4 of the bayonets 3 is attached to the second conical surface 6 of the lugs 5, the drill bit 1 and the hexagonal adapter 2 are positioned on the same axis, and the drill bit and the hexagonal adapter cannot fall off or skew after the glue is solidified.
in the utility model, the first conical surface 4 at the bayonet 3 of the drill bit 1 is matched with the second conical surface 6 at the lug 5 inside the hexagonal adapter 2 to form a concentric positioning part, the concentricity of the drill bit 1 and the adapter 2 is determined by the concentric positioning part to improve the drilling precision, and the friction coefficient between the first conical surface 4 and the second conical surface 6 is increased by the attachment of the first conical surface 4 and the second conical surface 6; the torque force in the drilling process is improved by the matching of the bayonet 3 and the lug 5 and the hexagonal shape of the adapter 2; the volume of ore of drill bit 1 and adapter 2 junction has filled the glue coating, makes drill bit 1 be difficult for droing in adapter 2.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (4)
1. A drill bit adapter device, comprising:
A drill bit;
The hexagonal adapter is arranged at the tail part of the drill bit;
The tail of the drill bit is provided with two bayonets which are symmetrically arranged along the axis of the drill bit; the tail part of the drill bit is inserted into the hexagonal adapter, and a glue coating is arranged at a connecting gap; a lug for filling the bayonet is arranged in the hexagonal adapter; the drill bit with the hexagonal adapter links up through the conical surface cooperation.
2. The drill adapter of claim 1, wherein the drill bit is provided with a first tapered surface at one end of the bayonet.
3. the drill bit adapter of claim 2, wherein the hex adapter has a second tapered surface, the second tapered surface being located at an end of the projection.
4. the drill bit adapter of claim 3, wherein the first tapered surface and the second tapered surface taper at 5 ~ 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920001239.9U CN209792696U (en) | 2019-01-02 | 2019-01-02 | Drill bit switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920001239.9U CN209792696U (en) | 2019-01-02 | 2019-01-02 | Drill bit switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209792696U true CN209792696U (en) | 2019-12-17 |
Family
ID=68820049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920001239.9U Active CN209792696U (en) | 2019-01-02 | 2019-01-02 | Drill bit switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209792696U (en) |
-
2019
- 2019-01-02 CN CN201920001239.9U patent/CN209792696U/en active Active
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