CN104827097A - Double-bit twist drill - Google Patents
Double-bit twist drill Download PDFInfo
- Publication number
- CN104827097A CN104827097A CN201510291315.0A CN201510291315A CN104827097A CN 104827097 A CN104827097 A CN 104827097A CN 201510291315 A CN201510291315 A CN 201510291315A CN 104827097 A CN104827097 A CN 104827097A
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- double
- bit body
- drill body
- 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
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/24—Titanium aluminium nitride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to a double-bit twist drill. The double-bit twist drill comprises a drill handle, a drill bit body A and a drill bit body B, wherein the two side end faces of the drill handle are both provided with grooves convenient for inserting and fixing the drill bit bodies, and anti-skid grooves are formed in the grooves; the drill bit body A and the drill bit body B are inserted into the two sides of the drill handle respectively, and both the drill bit body A and the drill bit body B are provided with a plurality of cutting edges and spiral chip removing grooves; the type of the drill bit body A is M8, and the type of the drill bit body B is M10. The double-bit twist drill has the advantages that the drill bit bodies and the drill handle are separated, the drill bits are convenient to replace, and the work length of the drill bits is lengthened; the types of the drill bit bodies of the two ends of the drill handle are common-used drill bit types, and the types of drill bits can be adaptable to most use requirements; aluminum nitride titanium coating layers are arranged on the surfaces of the drill bit bodies, the wear resistance of the drill bits can be strengthened, and the service life is improved.
Description
Technical field
The present invention relates to a kind of drill bit, particularly a kind of Double-head twist drill.
Background technology
fluted drill is with the instrument of the circular hole of drilling workpiece by the rotary cutting of its relative fixed axis.Be similar to fried dough twist because of its chip pocket curl and gain the name.Helicla flute has 2 grooves, 3 grooves or more groove, but the most common with 2 grooves.Fluted drill can be clamped in manual, electronic hand
Hold on formula boring bar tool or drilling machine, milling machine, lathe and even machining center and use.Drill bit material is generally high-speed tool steel or carbide alloy.
Be mention a kind of Double-head twist drill in the invention of 201220238225.7 in the patent No., comprise all-in-one-piece drillstock processed and drill body, drill body has spiral chip area, drill body is two, be separately positioned on the two ends of drillstock, drillstock has anti-slip tank, there is following shortcoming in the Double-head twist drill in above-mentioned patent: the Double-head twist drill after the wearing and tearing of two ends, this fluted drill will be discarded.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Double-head twist drill, and its innovative point is: comprise drillstock, drill body A and drill body B; Described drillstock both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, and it has anti-slip tank; Described drill body A and drill body B is plugged on drillstock both sides respectively, it all has some cutting edges and has spiral chip area.
Further, the model of described drill body A is M8, and the model of described drill body B is M10.
Further, there is one deck TiAlN coating on described drill body A and drill body B surface.
The invention has the advantages that:
(1) Double-head twist drill drill body of the present invention and drillstock separately, are convenient for changing drill bit, extend bit operation length;
(2) the drill body model at drillstock two ends is two kinds of conventional bit models, can adapt to most instructions for use;
(3) bit-body face has one deck TiAlN coating, can strengthen the wearability of drill bit, improves service life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of Double-head twist drill of the present invention.
Detailed description of the invention
As shown in Figure 1, the invention discloses a kind of Double-head twist drill, comprise drillstock 1, drill body A2 and drill body B3; Described drillstock 1 both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, it has anti-slip tank 4; Described drill body A2 and drill body B3 is plugged on drillstock 1 both sides respectively, and it all has some cutting edges 6 and has spiral chip area 5, bit-body face has one deck TiAlN coating, can strengthen the wearability of drill bit, improves service life.
When drill body A2 or drill body B3 damages, only need take off the drill body on drillstock 1, be replaced by new drill body, this Double-head twist drill just can come into operation again, and does not need to purchase in addition; M8 and M10 is more common bit model, and in most drilling operation, the utilization rate of the drill bit of this two type is higher, thus use is more reasonable.
More than show and describe general principle of the present invention and principal character.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a Double-head twist drill, its characteristic point is: draw together drillstock, drill body A and drill body B; Described drillstock both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, and it has anti-slip tank; Described drill body A and drill body B is plugged in the groove of drillstock both sides respectively, it all has some cutting edges and has spiral chip area.
2. a kind of Double-head twist drill according to claim 1, its characteristic point is: the model of described drill body A is M8, and the model of described drill body B is M10.
3. a kind of Double-head twist drill according to claim 1, its characteristic point is: there is one deck TiAlN coating on described drill body A and drill body B surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291315.0A CN104827097A (en) | 2015-06-01 | 2015-06-01 | Double-bit twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291315.0A CN104827097A (en) | 2015-06-01 | 2015-06-01 | Double-bit twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104827097A true CN104827097A (en) | 2015-08-12 |
Family
ID=53805495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510291315.0A Pending CN104827097A (en) | 2015-06-01 | 2015-06-01 | Double-bit twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104827097A (en) |
Cited By (3)
| 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 |
| CN108380944A (en) * | 2018-05-07 | 2018-08-10 | 苏州弗士曼精密机械有限公司 | A kind of small-sized Two head drill 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 |
-
2015
- 2015-06-01 CN CN201510291315.0A patent/CN104827097A/en active Pending
Cited By (3)
| 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 |
| CN108380944A (en) * | 2018-05-07 | 2018-08-10 | 苏州弗士曼精密机械有限公司 | A kind of small-sized Two head drill 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |