CN201505752U - Chamfering drill - Google Patents
Chamfering drill Download PDFInfo
- Publication number
- CN201505752U CN201505752U CN2009200481561U CN200920048156U CN201505752U CN 201505752 U CN201505752 U CN 201505752U CN 2009200481561 U CN2009200481561 U CN 2009200481561U CN 200920048156 U CN200920048156 U CN 200920048156U CN 201505752 U CN201505752 U CN 201505752U
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- CN
- China
- Prior art keywords
- drill
- chamfering
- cutting
- drill body
- apex point
- 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 relates to a perforating chamfering drill with centering function, and is used for processing chamfer angles in machining. The chamfering drill comprises a drill tip, a drill body and a drillstock, wherein, a cutting chute is formed on the drill body; a cutting edge is arranged on the drill tip; a cutting horizontal blade is arranged at the pointed head of the drill tip; and the included angle Beta between the cutting horizontal blade and the cutting edge is 50 DEG C. The utility model not only can perform centering, but also can perform chamfering, so that the chamfering drill has multi-purposes, the tool vibration phenomenon is greatly weakened, the manufacturing cost is saved, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of centering function perforate chamfering brill that has, and is used for the chamfer machining of machined.
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.Drill bit commonly used mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.At present, traditional processing method is continued to use in Hole chamfering processing in the machining process more, promptly adopts the drill bit taper shank is directly inserted tapered bore of machine tool spindle, behind the range estimation bit central mating holes center, rotary main shaft drives drill bit rotary cutting and axial feed, finishes processing tasks at last.But in actual mechanical process, because the operation power of this processing mode is the rigid of transmission of being undertaken by drill bit taper shank and spindle taper hole friction self-locking, when existing deviation, the range estimation center-aligned do not have the automatic deviation correction function, so, drill bit will occur that cutting output is big on one side under eccentric situation axially during feeding, and the another side cutting output is little, the asymmetric situation of chamfering size often occurs, be difficult to guarantee product quality.In addition, the operative skill of range estimation centering is had relatively high expectations, and working (machining) efficiency is low, and labour intensity is big, is unfavorable for producing in batches; The worker that also has is using chamfering to creep into capable chamfering earlier by the pilot drill punching, this way will be often bit change more, trouble operates.Usually the apex point segment thickness of the drill bit of usefulness is 20% of a drill body part external diameter---30%, and this makes that highly the resistance ratios that runs into is bigger when concrete operations.
Goal of the invention
Low at working (machining) efficiency in the above-mentioned technology, the shortcoming that labour intensity is big provides a kind of centering function perforate chamfering brill that has.
The realization the technical solution of the utility model is as follows:
Chamfering is bored, and it comprises apex point, drill body, drillstock, has chip area on the drill body, has cutting edge on the apex point, and the apex point tip is provided with the cutting chisel edge, and the angle β between this cutting chisel edge and the cutting edge is 50 °.
Described thickness of drill tip is 11% of a drill body external diameter---12%.
Described chip area is 2.5 times of drill body external diameter.
Use above technology, chamfering is bored, it comprises apex point, drill body, drillstock, has chip area on the drill body, has cutting edge on the apex point, the apex point tip is provided with the cutting chisel edge, horizontal sextant angle β between this cutting chisel edge and the cutting edge is 50 °, does not therefore need out the cutting pair sword just can guarantee good centering function, significantly reduces the cutter phenomenon of shaking when carrying out chamfer machining, the apex point height is 11% of the outer warp of drill body---12%, and the resistance that drill bit in use is subjected to reduces.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of apex point;
Among the figure: 1, apex point, 2, drill body, 3, drillstock, 4, chip area, 5, cutting edge, 6, the cutting chisel edge.
The specific embodiment
Implement example 1: as shown in Figure 1 and Figure 2, chamfering is bored, and it comprises apex point 1, drill body 2, drillstock 3, has chip area 4 on the drill body, and chip area 4 is 2.5 times of drill body 2 external diameters, and thickness of drill tip is 11% of a drill body external diameter.Having two angles on the apex point is 90 ° of cutting edges 5, and the apex point tip is provided with cutting chisel edge 6, and the angle β between this cutting chisel edge 6 and the cutting edge 5 is 50 °.
Implement example 2: as shown in Figure 1 and Figure 2, chamfering is bored, and it comprises apex point 1, drill body 2, drillstock 3, has chip area 4 on the drill body, and chip area 4 is 2.5 times of drill body 2 external diameters, and thickness of drill tip is 12% of a drill body external diameter.Having two angles on the apex point is 120 ° of cutting edges 5,, the apex point tip is provided with cutting chisel edge 6, and the angle β between this cutting chisel edge 6 and the cutting edge 5 is 50 °.
Claims (3)
1. chamfering is bored, and it comprises apex point, drill body, drillstock, has chip area on the drill body, has cutting edge on the apex point, it is characterized in that: the apex point tip is provided with the cutting chisel edge, and the angle β between this cutting chisel edge and the cutting edge is 50 °.
2. chamfering according to claim 1 is bored, and it is characterized in that: described thickness of drill tip is 11% of a drill body external diameter---and 12%.
3. chamfering according to claim 1 is bored, and it is characterized in that: described chip area is 2.5 times of drill body external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200481561U CN201505752U (en) | 2009-08-31 | 2009-08-31 | Chamfering drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200481561U CN201505752U (en) | 2009-08-31 | 2009-08-31 | Chamfering drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201505752U true CN201505752U (en) | 2010-06-16 |
Family
ID=42466887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200481561U Expired - Fee Related CN201505752U (en) | 2009-08-31 | 2009-08-31 | Chamfering drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201505752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581352A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Chamfering drill |
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
-
2009
- 2009-08-31 CN CN2009200481561U patent/CN201505752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581352A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Chamfering drill |
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Yinlu Numerical Control Knife Factory Assignor: Qian Yinguang Contract record no.: 2010320001059 Denomination of utility model: Chamfered drilling structure Granted publication date: 20100616 License type: Exclusive License Record date: 20100729 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20100831 |