CN201684962U - Drill - Google Patents
Drill Download PDFInfo
- Publication number
- CN201684962U CN201684962U CN2010201364981U CN201020136498U CN201684962U CN 201684962 U CN201684962 U CN 201684962U CN 2010201364981 U CN2010201364981 U CN 2010201364981U CN 201020136498 U CN201020136498 U CN 201020136498U CN 201684962 U CN201684962 U CN 201684962U
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- CN
- China
- Prior art keywords
- drill
- shank
- chuck
- handle portion
- drill bit
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a drill, which comprises a working part and a handle portion, wherein the peripheral surface of one end of the handle portion is provided with rolling decorative patterns, because the peripheral surface of one end of the handle portion is provided with the rolling decorative patterns, when the drill is arranged on a drill chuck or a machine bed main shaft or a taper hole of a tail seat, the fiction between the chuck and the handle portion is increased, thereby leading the drill and the chuck to be more firmly clamped and connected, operators do not need to exert much strength to clamp the drill when in use, thereby being convenient to use. Furthermore, the handle portion of the drill is provided with the rolling decorative patterns, therefore, the structure is simple, and the processing is convenient.
Description
Technical field
The utility model relates to a kind of drill bit, belongs to the technical field of aperture knife tool.
Background technology
Drill bit is to go out through hole or blind hole in order to drilling on solid material, and can be to the cutter of existing hole reaming.The drill bit of prior art comprises working portion and shank, working portion and shank link into an integrated entity, the outer peripheral face of described shank is an even surface, working portion has many spiral grooves, spiral groove can be used the processing of methods such as milling, grinding, hot rolling or hot extrusion, and the front end of drill bit working portion forms cutting tip behind sharpening, and the shank form has two kinds of staight shank and taper shanks, add man-hour the former be clipped in the drill chuck, the latter is inserted in the taper hole of machine tool chief axis or tailstock.The drill bit of this structure is because the outer peripheral face of shank is an even surface, when shank is installed in the taper hole of drill chuck or machine tool chief axis or tailstock, frictional force between shank and the chuck is little, makes drill bit be not easy to clamp, and if will will clamp drill bit, just need bigger clamping force, therefore, use inconvenient.
The utility model content
Technical problem to be solved in the utility model provides a kind of clamping connection drill bit firm, easy to use and simple in structure.
In order to solve the problems of the technologies described above, a kind of drill bit of the utility model comprises working portion, shank, and wherein, the outer peripheral face of described shank one end is provided with the annular knurl line.
The utility model can be realized following beneficial effect:
Because the outer peripheral face of described shank one end is provided with the annular knurl line, when drill bit is installed in the taper hole of drill chuck or machine tool chief axis or tailstock, increased the frictional force between chuck and the shank, make the clamping connection of drill bit and chuck more firm, and during work, operating personnel do not have and cost bigger power and just drill bit can be clamped, thereby have made things convenient for use; In addition, the utility model only is provided with the annular knurl line at shank, and is therefore, simple in structure and easy to process.
Description of drawings
Fig. 1 is a structural representation of the present utility model
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in the figure, in order to solve the problems of the technologies described above, a kind of drill bit of the utility model comprises working portion 1, shank 2, and wherein, described working portion 1 can be split-type structural with described shank 2, and described working portion 1 is integral by being welded to connect with described shank 2; Also can be monolithic construction, the outer peripheral face of described shank 2 one ends is provided with annular knurl line 21.Because the outer peripheral face of described shank 2 one ends is provided with annular knurl line 21, when drill bit is installed in the taper hole of drill chuck or machine tool chief axis or tailstock, increased the frictional force between chuck and the shank, make the clamping connection of drill bit and chuck more firm, and during work, operating personnel do not have and cost bigger power and just drill bit can be clamped, thereby have made things convenient for use; In addition, the utility model only is provided with the annular knurl line at shank, and is therefore, simple in structure and easy to process.
Here description of the present utility model and application are illustrative; be not to want in the above-described embodiments with scope restriction of the present utility model; therefore, the utility model is not subjected to the restriction of present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of the utility model protection.
Claims (1)
1. a drill bit comprises working portion (1), shank (2), it is characterized in that the outer peripheral face of described shank (2) one ends is provided with annular knurl line (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201364981U CN201684962U (en) | 2010-03-19 | 2010-03-19 | Drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201364981U CN201684962U (en) | 2010-03-19 | 2010-03-19 | Drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684962U true CN201684962U (en) | 2010-12-29 |
Family
ID=43373252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201364981U Expired - Fee Related CN201684962U (en) | 2010-03-19 | 2010-03-19 | Drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684962U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699390A (en) * | 2012-06-29 | 2012-10-03 | 上海海事大学 | Drilling component used for drilling technique of hard alloy materials |
| CN102728875A (en) * | 2012-06-29 | 2012-10-17 | 上海海事大学 | Stem body component for use in hard alloy material drilling process |
| CN106077759A (en) * | 2016-08-22 | 2016-11-09 | 张民胜 | A kind of drill gun of Portable digital control machine tool |
-
2010
- 2010-03-19 CN CN2010201364981U patent/CN201684962U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699390A (en) * | 2012-06-29 | 2012-10-03 | 上海海事大学 | Drilling component used for drilling technique of hard alloy materials |
| CN102728875A (en) * | 2012-06-29 | 2012-10-17 | 上海海事大学 | Stem body component for use in hard alloy material drilling process |
| CN106077759A (en) * | 2016-08-22 | 2016-11-09 | 张民胜 | A kind of drill gun of Portable digital control machine tool |
| CN106077759B (en) * | 2016-08-22 | 2019-02-19 | 南陵旺科知识产权运营有限公司 | A kind of drill gun of Portable digital control machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |