CN203697178U - Nail-cutting woodworking drill - Google Patents
Nail-cutting woodworking drill Download PDFInfo
- Publication number
- CN203697178U CN203697178U CN201320813365.7U CN201320813365U CN203697178U CN 203697178 U CN203697178 U CN 203697178U CN 201320813365 U CN201320813365 U CN 201320813365U CN 203697178 U CN203697178 U CN 203697178U
- Authority
- CN
- China
- Prior art keywords
- cutting
- nail
- cutting edge
- drill
- angle
- 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 - Lifetime
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- 239000000463 material Substances 0.000 claims description 8
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a nail-cutting woodworking drill and aims at providing a nail-cutting woodworking drill which is simple in structure, high in strength and high in hole drilling efficiency and can be used for cutting off a nail nailed into wood. The nail-cutting woodworking drill comprises a drill body, wherein the front end of the drill body is provided with a cutting edge; the drill body is provided with a spiral junk slot; the tail end of the drill body is provided with a drill handle used for clamping; the front end of the center of the drill body is provided with a conical spiral tip. The nail-cutting woodworking drill is characterized in that the vertex angle of the cutting edge is 180 degrees, the front angle of the main cutting edge at an outer edge is 30-25 degrees, and the rear angle of the main cutting edge at the outer edge is 8-10 degrees. The vertex angle of the cutting edge is 180 degrees, so that a component force during cutting is reduced, the effective torque during nail cutting is improved, the nail cutting performance is improved, meanwhile a common lateral cutting edge with weaker strength is omitted, the front angle and the rear angle are recued, the strength of the main cutting edge is enhanced, and bearing steel with good hardenability and high rigidity is adopted. The nail-cutting woodworking drill has the characteristics of good overall performance and high strength, and can be used for performing hole drilling on various old woods which possibly have nails.
Description
Technical field
The utility model belongs to wood working tool, the carpenter's auger that cuts nail that particularly carpenter is boring.
Background technology
Common carpenter's auger is by main cutting edge and side cutting edge, main cutting edge mainly cuts the timber in the middle of hole, side cutting edge cuts the hole wall of boring, and makes the hole wall in bored hole smooth, and size is unified regular, because the material of carpenter's auger institute drilling is conventionally more loose, quality is not hard, and therefore, their cutting edge is all sharper, forward and backward angle is larger, and the angle between front and rear knife face is less.The material of manufacturing carpenter's auger also just adopts steel No. 45, and the hardness after quenching is HRC45-48.But in the use of boring, the particularly man-hour that adds to old timber, tend to face nailing and have iron nail, common carpenter's auger is encountered iron nail, due to the intensity of blade and hardness a little less than, can there is tipping, wiredrawn edge etc. and damage the cutting edge of carpenter's auger, cause carpenter's auger cannot continue to use, or quality and the decrease in efficiency of boring.
Utility model content
It is high that the purpose of this utility model is to provide a kind of intensity simple in structure, carpenter's auger efficiency high, boring, the carpenter's auger that cuts nail that can cut off the iron nail of following closely in timber.
In order to reach above-mentioned requirements, the utility model is achieved through the following technical solutions: it includes brill body, the front end that bores body is cutting edge, bore and be shaped with spiral chip area with it, be shaped with the drillstock for clamping at the tail end that bores body, the front end at Zuan Shen center is shaped with taper spiral shell point, it is characterized in that the drift angle 180 of described cutting edge is spent, the anterior angle 30-25 degree of outer rim place main cutting edge, relief angle 8-10 degree.
The material of the described carpenter's auger that cuts nail is made with GCr15 material.
The hardness of described cutting edge is HRC56-52.
According to the carpenter's auger that cuts nail of such scheme manufacture, because the drift angle 180 of cutting edge is spent, reduce the component that common drift angle produces in the time of 120 degree cutting, improve the effective torque while cutting nail, improve the cutting ability to nail, removed the weak side cutting edge of conventional intensity simultaneously, and reduced anterior angle and relief angle, strengthen the intensity of main cutting edge, and adopted the bearing steel that quenching degree is good, hardness is high.Although adopted the drift angle of 180 degree, in the time of boring, increase axial force, bore the taper spiral shell point of body hub head end, make up the large drawback of axial force, there is the effect of automatic forward feed and centering.It has cutting good combination property, and the feature that intensity is high can be carried out Drilling operation to the various old timber that may have nail.
Accompanying drawing explanation
Fig. 1 is the front view of carpenter's auger of cutting nail;
Fig. 2 is the A-A profile in Fig. 1.
In figure: 1, bore body; 2, cutting edge; 3, chip area; 4, drillstock; 5, taper spiral shell point.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model will be further described.
Fig. 1, Fig. 2 are the structural representations of carpenter's auger of cutting nail.As seen from the figure, it includes bores body 1, the front end that bores body 1 is cutting edge 2, bore on body 1 and be shaped with spiral chip area 3, be shaped with the drillstock 4 for clamping at the tail end that bores body 1, the front end that bores body 1 center is shaped with taper spiral shell point 5, and the drift angle B of described cutting edge 2 is 180 degree, and the anterior angle E of outer rim place main cutting edge is that 30-25 degree, relief angle F are 8-10 degree.The material of the described carpenter's auger that cuts nail is made with GCr15 material.Wherein the hardness of cutting edge 2 is HRC56-52.
Claims (3)
1. carpenter's auger cuts nail, it includes brill body, the front end that bores body is cutting edge, bore and be shaped with spiral chip area with it, be shaped with the drillstock for clamping at the tail end that bores body, the front end at Zuan Shen center is shaped with taper spiral shell point, it is characterized in that the drift angle 180 of described cutting edge is spent, the anterior angle 30-25 degree of outer rim place main cutting edge, relief angle 8-10 degree.
2. according to the carpenter's auger that cuts nail described in claim l, the material GCr15 material of the carpenter's auger that cuts nail described in it is characterized in that is made.
3. according to the carpenter's auger that cuts nail described in claim l, the hardness that it is characterized in that described cutting edge is HRC56-52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813365.7U CN203697178U (en) | 2013-12-12 | 2013-12-12 | Nail-cutting woodworking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813365.7U CN203697178U (en) | 2013-12-12 | 2013-12-12 | Nail-cutting woodworking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203697178U true CN203697178U (en) | 2014-07-09 |
Family
ID=51047673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813365.7U Expired - Lifetime CN203697178U (en) | 2013-12-12 | 2013-12-12 | Nail-cutting woodworking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203697178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659962A (en) * | 2013-12-12 | 2014-03-26 | 浙江野牛工具有限公司 | Nail-cutting wood drill |
-
2013
- 2013-12-12 CN CN201320813365.7U patent/CN203697178U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659962A (en) * | 2013-12-12 | 2014-03-26 | 浙江野牛工具有限公司 | Nail-cutting wood drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |