CN103639488A - Double-head twist drill - Google Patents
Double-head twist drill Download PDFInfo
- Publication number
- CN103639488A CN103639488A CN201310635881.XA CN201310635881A CN103639488A CN 103639488 A CN103639488 A CN 103639488A CN 201310635881 A CN201310635881 A CN 201310635881A CN 103639488 A CN103639488 A CN 103639488A
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- drillstock
- double
- inlet opening
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
Abstract
The invention discloses a double-head twist drill which comprises a drill handle (1). The two ends of the drill handle (1) are respectively connected with a drill bit (2). A spiral chip discharging groove (3) is formed in each drill bit (2). A water inlet hole is formed in the drill handle (1) and extends into the drill handle (1). A cooling water groove is formed in each drill bit (2). The two water cooling grooves (5) are both communicated with the water inlet hole in the drill handle (1). Openings are formed in the end portions of the cooling water grooves and the end portions of the drill bits (2). The two drill bits of the double-head twist drill are both used. Moreover, the double-head twist drill can keep cool in the utilization process and cannot influence quality due to overheating.
Description
Technical field
The present invention relates to a kind of boring cutter, especially relate to a kind of double end fluted drill.
Background technology
Fluted drill be rotary cutting by its relative fixed axis with the cutter of the circular hole of drilling workpiece, because its chip area curl is similar to fried dough twist, gain the name.The fluted drill of prior art is single head, only has a drill body, and drill body whole fluted drill after wearing and tearing all will be scrapped, and has caused like this waste.Therefore occurred double end fluted drill, but existing double end fluted drill is due to the prolongation of service time, and can produces a large amount of heat with friction of workpiece during bit, therefore the long-time quality that can greatly affect drill bit afterwards of using, affects its service life.
Summary of the invention
The present invention does not have refrigerating function in order to solve current double end fluted drill, during use, can affect the problem of cutter quality, a kind of double end fluted drill is provided for this reason, comprise drillstock 1, the two ends of described drillstock 1 are connected with respectively a drill bit 2, on described each drill bit 2, be equipped with spiral chip area 3, have an inlet opening 4 on described drillstock 1, inlet opening 4 extends to the inside of drillstock 1; Interior 5, two boshes 5 of a bosh that all have of described each drill bit 2 are all communicated with the inlet opening 4 of drillstock 1 inside, and described bosh 5 is provided with opening in the end of drill bit 2.
Double end fluted drill of the present invention, the axis of the axis of described bosh 5 and drill bit 2, not on same straight line, can not weaken the brill power of drill bit.
Double end fluted drill of the present invention, the axis of described inlet opening 4 is vertical with the axis of drill bit 2.
Double end fluted drill of the present invention, the outer surface of described drillstock 1 is also provided with anti-skidding raised line.
The invention has the beneficial effects as follows:
The present invention is owing to having added inlet opening on drillstock, and inlet opening is connected with the bosh in drill bit, bosh one is through to the end of drill bit, therefore after passing into cooling water, can all play cooling effect to whole drill bit, drill bit can not have problems because of heat, has guaranteed that drill bit can be used for a long time.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the schematic diagram of A-A face in Fig. 1.
The specific embodiment
Disclosed all features in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this description, unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
Double end fluted drill as depicted in figs. 1 and 2, comprise drillstock 1, the two ends of described drillstock 1 are connected with respectively a drill bit 2, the outer surface of described drillstock 1 is also provided with anti-skidding raised line, on described each drill bit 2, be equipped with spiral chip area 3, on described drillstock 1, have an inlet opening 4, inlet opening 4 extends to the inside of drillstock 1, and the axis of described water inlet 4 is vertical with the axis of drill bit 2; Interior 5, two boshes 5 of a bosh that all have of described each drill bit 2 are all communicated with the inlet opening 4 of drillstock 1 inside, and described bosh 5 is provided with opening in the end of drill bit 2, and the axis of the axis of described bosh 5 and drill bit 2 is not on same straight line.
The present invention is owing to having added inlet opening on drillstock, and inlet opening is connected with the bosh in drill bit, bosh one is through to the end of drill bit, therefore after passing into cooling water, can all play cooling effect to whole drill bit, drill bit can not have problems because of heat, has guaranteed that drill bit can be used for a long time.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (4)
1. a double end fluted drill, comprise drillstock (1), the two ends of described drillstock (1) are connected with respectively a drill bit (2), on described each drill bit (2), be equipped with spiral chip area (3), it is characterized in that: on described drillstock (1), have an inlet opening (4), inlet opening (4) extend to the inside of drillstock (1); In described each drill bit (2), all have a bosh (5), two boshes (5) are all communicated with the inlet opening (4) of drillstock (1) inside, and described bosh (5) is provided with opening in the end of drill bit (2).
2. double end fluted drill according to claim 1, is characterized in that: the axis of the axis of described bosh (5) and drill bit (2) is not on same straight line.
3. double end fluted drill according to claim 1, is characterized in that: the axis of described inlet opening (4) is vertical with the axis of drill bit (2).
4. double end fluted drill according to claim 1, is characterized in that: the outer surface of described drillstock (1) is also provided with anti-skidding raised line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635881.XA CN103639488A (en) | 2013-12-03 | 2013-12-03 | Double-head twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635881.XA CN103639488A (en) | 2013-12-03 | 2013-12-03 | Double-head twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103639488A true CN103639488A (en) | 2014-03-19 |
Family
ID=50244845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310635881.XA Pending CN103639488A (en) | 2013-12-03 | 2013-12-03 | Double-head twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639488A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098023A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of double end diamond bit |
| CN114289762A (en) * | 2021-12-30 | 2022-04-08 | 江苏雄鹰工具有限公司 | Composite titanium-plated drill bit structure with extremely high hardness |
-
2013
- 2013-12-03 CN CN201310635881.XA patent/CN103639488A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098023A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of double end diamond bit |
| CN114289762A (en) * | 2021-12-30 | 2022-04-08 | 江苏雄鹰工具有限公司 | Composite titanium-plated drill bit structure with extremely high hardness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |