CN204248041U - A kind of Double-head twist drill - Google Patents
A kind of Double-head twist drill Download PDFInfo
- Publication number
- CN204248041U CN204248041U CN201420548154.XU CN201420548154U CN204248041U CN 204248041 U CN204248041 U CN 204248041U CN 201420548154 U CN201420548154 U CN 201420548154U CN 204248041 U CN204248041 U CN 204248041U
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- CN
- China
- Prior art keywords
- bright
- drill
- double
- drill body
- head twist
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of Double-head twist drill, relate to machine tools field, this Double-head twist drill comprises bores bright and drill body, described drill body comprises two, be located at respectively and bore bright two ends, drill body inside is provided with cooling bath, bore bright intermediate surface and be provided with anti-slip tank, the anti-slip tank left and right sides is provided with water inlet, bore bright two ends and be provided with internal thread, two each and every one drill body one end are all provided with external screw thread, and one end is all provided with setscrew nut to external screw thread, by regulating setscrew nut to make drill bit and processed end face conflict, add man-hour more accurate, stable.
Description
Technical field
The utility model relates to machine tools field, particularly a kind of Double-head twist drill.
Background technology
Fluted drill mainly processes from solid material the instrument portalled, and is cutter most widely used in aperture knife tool.Double-head twist drill, mainly in machining when one of them drill body has worn and torn, can fall to use another drill body, save at least one and bore bright expense, but the drill body of existing Double-head twist drill be fixed on bore bright irremovable, if install inaccurate, staff also cannot discover; And fluted drill frictional force when holing is comparatively large, the heat of generation is very large, and good cooling infrastructure do not accomplished by existing fluted drill.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Double-head twist drill, can be made that brill is bright conflicts with the end face of catching by setscrew nut, not easily skids, makes processing accurate stable more, and make processing reach good cooling effect during machining hole.
For achieving the above object, the utility model provides following technical scheme: a kind of Double-head twist drill, comprise and bore bright and drill body, described drill body comprises 2, be located at respectively and bore bright two ends, described 2 drill body inside are all provided with two cavity cooling baths, the bright intermediate surface of described brill is provided with anti-slip tank, the bright middle both sides of described brill have water inlet, end face and the water inlet opposite position place of 2 drill bits are respectively equipped with delivery port, bore bright two ends and be provided with internal thread, described 2 drill bodies are provided with external screw thread with the bright link of brill, and described external screw thread is all provided with setscrew nut.
Preferably, described water inlet is located at and is bored bright both sides middle position.
Preferably, described 2 drill body internal cooling grooves are set to semicircle.
Preferably, described drill body is provided with spiral row and cuts groove.
Preferably, described setscrew nut is located near anti-slip tank place.
The beneficial effect of above technical scheme is adopted to be: this Double-head twist drill adopts two drill bits, save at least one and bore bright expense, and by being provided with screw thread on drill body, screw thread is provided with setscrew nut, by twisting setscrew nut, drill bit and processed end face are conflicted, accurate stable more during machining hole; In addition, in drill body, be provided with cooling bath, make to add and reduce fricative heat man-hour, reach effect of cooling.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Double-head twist drill of the utility model.
Fig. 2 is the top view of a kind of fluted drill of the utility model.
Wherein, 1-screw blade, 2-row cut groove, 3-drill bit, 4-drill body, 5-screw thread, 6-setscrew nut, 7-bore bright, 8-anti-slip tank, 9-cooling bath, 10-water inlet, 11-delivery port.
Detailed description of the invention
The preferred embodiment of a kind of Double-head twist drill of the utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 shows the detailed description of the invention of a kind of Double-head twist drill of the utility model: this Double-head twist drill comprises drill body 4 and bores bright 7, wherein drill bit 4 comprises two, be respectively equipped with the two ends of boring bright 7, bore bright 7 middle-ends and be provided with anti-slip tank 8, more stable when being fixed on pawl dish to make brill bright 7, drill body 4 surface is provided with screw blade 1 and helicla flute 2, the conveniently discharge of chip thing, drill body one end is set to taper bit 3, the drill body other end is provided with screw thread 5, screw thread is provided with setscrew nut 6, when Double-head twist drill is fixed on pawl dish, in order to make hole machined more accurately with stable, drill body can be moved by twisting setscrew nut 6, drill bit 3 is conflicted with the end face of part to be processed, drill body inside is provided with two cavity cooling baths 9 in addition, wherein delivery port 11 is located at drill bit 3 end face, and this cooling bath 9 is set to semicircle, is respectively equipped with water inlet 10 at the bright 7 middle two ends of brill, delivery port 11 is communicated with water inlet 10, reaches the cooling effect adding man-hour.
Above is only preferred embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. a Double-head twist drill, comprise and bore bright and drill body, it is characterized in that: described drill body comprises 2, be located at respectively and bore bright two ends, described 2 drill body inside are all provided with two cavity cooling baths, the bright intermediate surface of described brill is provided with anti-slip tank, the bright middle both sides of described brill have water inlet, and end face and the water inlet opposite position place of 2 drill bits are respectively equipped with delivery port, and the bright two ends of described brill are provided with internal thread, described drill body is provided with external screw thread with the bright link of brill, and described external screw thread is all provided with setscrew nut.
2. Double-head twist drill according to claim 1, is characterized in that: described water inlet is located at and is bored bright both sides middle position.
3. Double-head twist drill according to claim 1, is characterized in that: described 2 drill body internal cooling grooves are set to semicircle.
4. Double-head twist drill according to claim 1, is characterized in that: described drill body is provided with spiral row and cuts groove.
5. Double-head twist drill according to claim 1, is characterized in that: described setscrew nut is located near anti-slip tank place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548154.XU CN204248041U (en) | 2014-09-23 | 2014-09-23 | A kind of Double-head twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548154.XU CN204248041U (en) | 2014-09-23 | 2014-09-23 | A kind of Double-head twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204248041U true CN204248041U (en) | 2015-04-08 |
Family
ID=52952396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548154.XU Expired - Fee Related CN204248041U (en) | 2014-09-23 | 2014-09-23 | A kind of Double-head twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204248041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847256A (en) * | 2015-05-06 | 2015-08-19 | 辽宁工程技术大学 | Hard rock drilling apparatus |
-
2014
- 2014-09-23 CN CN201420548154.XU patent/CN204248041U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847256A (en) * | 2015-05-06 | 2015-08-19 | 辽宁工程技术大学 | Hard rock drilling apparatus |
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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: 20150408 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |