CN206009943U - Six side's handle attachment structures of small dimension drill bit - Google Patents
Six side's handle attachment structures of small dimension drill bit Download PDFInfo
- Publication number
- CN206009943U CN206009943U CN201620898442.7U CN201620898442U CN206009943U CN 206009943 U CN206009943 U CN 206009943U CN 201620898442 U CN201620898442 U CN 201620898442U CN 206009943 U CN206009943 U CN 206009943U
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- China
- Prior art keywords
- drill bit
- afterbody
- small dimension
- installing hole
- attachment structures
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
This utility model is related to a kind of drill bit structure, six side's handle attachment structures of specifically a kind of small dimension drill bit.The structure includes the drill bit with cylindrical tail portion and installed in six side's handles of drill bit afterbody, the six Fang Bing centers are provided with the installing hole with diameter greater than bit cylindrical afterbody, the afterbody insertion installing hole of the drill bit, filled with fixing glue-line in the gap between drill bit afterbody and installing hole.This utility model is directed to the less feature of the moment of torsion needed when small dimension drill bit generally works（Through test, the fluted drill of diameter 1-4mm, its operation torque are 0.28-3.36N*M）, drill bit afterbody is attached with six side's handles by the way of retaining rubber bonding, while cutting hardness requirement is met, simplifies manufacture, reduces cost, be simultaneously connected with high precision.
Description
Technical field
This utility model is related to a kind of drill bit structure, six side's handle attachment structures of specifically a kind of small dimension drill bit.
Background technology
Six side's handle twist drill of small dimension, as six side's handles are larger-size normal structure, and small dimension Flos Cannabiss drill shank
Comparatively fine.Existing drill handle part and the connection of six side's handles typically using interference fit nested, radially wear the methods such as pin riveting；Or
Person, opens the face of scabbling groove in advance in the handle outer surface of straight shank twist drill, hands over and loads drill bit in the six side's delthyriums for having drilled, then uses
In relevant position, riveting is formed Sheet Metal Forming Technology.There are complex procedures, high processing costs in both processes.While drill bit phase
To six side's handles（Work retaining part）Radial run-out is seriously overproof, general rivet after need to increase alignment process, and alignment
Six side's handles can be produced and be connected loosening with drill bit.
Content of the invention
Technical problem to be solved in the utility model is to provide a kind of simple structure, easily manufactured, disclosure satisfy that little rule
Lattice drill bit use requirement, six side's handle attachment structures of the small dimension drill bit of low cost of manufacture.
Six side's handle attachment structures of small dimension drill bit of the present utility model include the drill bit with cylindrical tail portion and installation
In six side's handles of drill bit afterbody, the six Fang Bing centers are provided with the installing hole with diameter greater than bit cylindrical afterbody, the drill bit
Afterbody insertion installing hole, in the gap between drill bit afterbody and installing hole filled with fixing glue-line.
The drill bit afterbody body diameter is less than installation bore dia 0.05-0.15mm.
This utility model is directed to the less feature of the moment of torsion needed when small dimension drill bit generally works（Through test, diameter 1-
The fluted drill of 4mm, its operation torque are 0.28-3.36N*M）, to drill bit afterbody and six side's handles by the way of retaining rubber bonding
It is attached, while cutting hardness requirement is met, simplifies manufacture, reduces cost, be simultaneously connected with high precision.
Description of the drawings
Fig. 1 is vertical section structure schematic diagram of the present utility model.
Specific embodiment
As illustrated, six side's handle attachment structures of the small dimension drill bit include the drill bit 1 with cylindrical tail portion and install
In six side's handles 2 of drill bit afterbody, the six Fang Bing centers are provided with the installing hole 3 with diameter greater than bit cylindrical afterbody, the brill
The afterbody insertion installing hole of head, filled with fixing glue-line 4 in the gap between drill bit afterbody and installing hole.The drill bit afterbody
Body diameter is less than installation bore dia 0.05-0.15mm.
Claims (2)
1. a kind of six side's handle attachment structures of small dimension drill bit, including the drill bit with cylindrical tail portion and are arranged on drill bit afterbody
Six side's handles, it is characterized in that：The six Fang Bing centers are provided with the installing hole with diameter greater than bit cylindrical afterbody, the drill bit
Afterbody inserts installing hole, filled with fixing glue-line in the gap between drill bit afterbody and installing hole.
2. six side's handle attachment structures of small dimension drill bit according to claim 1, is characterized in that：The drill bit afterbody cylinder
Diameter is less than installation bore dia 0.05-0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898442.7U CN206009943U (en) | 2016-08-17 | 2016-08-17 | Six side's handle attachment structures of small dimension drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898442.7U CN206009943U (en) | 2016-08-17 | 2016-08-17 | Six side's handle attachment structures of small dimension drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206009943U true CN206009943U (en) | 2017-03-15 |
Family
ID=58249835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620898442.7U Active CN206009943U (en) | 2016-08-17 | 2016-08-17 | Six side's handle attachment structures of small dimension drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206009943U (en) |
-
2016
- 2016-08-17 CN CN201620898442.7U patent/CN206009943U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |