CN207942021U - Single side single hook drill point - Google Patents
Single side single hook drill point Download PDFInfo
- Publication number
- CN207942021U CN207942021U CN201721927415.9U CN201721927415U CN207942021U CN 207942021 U CN207942021 U CN 207942021U CN 201721927415 U CN201721927415 U CN 201721927415U CN 207942021 U CN207942021 U CN 207942021U
- Authority
- CN
- China
- Prior art keywords
- drill
- lip portion
- sword
- drill lip
- chip removal
- 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
Links
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- Drilling Tools (AREA)
Abstract
The utility model belongs to drill point technical field, more particularly to single side single hook drill point, including drill shank, the drill lip portion of drill shank front end, drill lip portion is centered on axis of rotation, one debris ditch of peripheral surface spiralization in drill lip portion, chip removal flute is extended spirally from a front end in the drill lip portion to the drill shank, drill lip portion is equipped with spiral side edge, drill lip portion front end is equipped with cutting end sword, spiral side edge front end connects with cutting end sword, drill lip portion sword body at the back side at spiral side edge is recessed inwardly to form counter drain, counter drain front end extends on rear side of the sword of cutting end, counter drain rear end gradually extends to chip removal flute and is integrated with chip removal flute, rigidity is strong, drilling efficiency is high, chip removal is fast.
Description
Technical field
The utility model belongs to drill point technical field, and in particular to single side single hook drill point.
Background technology
Outer diameter at the nose-cut-ting edge of traditional drill point is consistent with the outer diameter of blade, leads in feed that resistance is big, easily collapses
Knife, and chip removal has some setbacks, cutter poor rigidity.
Utility model content
Technical problem to be solved in the utility model is in view of the foregoing drawbacks, to provide single side single hook drill point, and rigidity is strong, bores
Cut efficient, chip removal is fast.
The technical solution that the utility model solves the use of its technical problem is as follows：
Single side single hook drill point includes the drill lip portion of drill shank, drill shank front end, drill lip portion centered on axis of rotation,
One debris ditch of peripheral surface spiralization in drill lip portion, chip removal flute are prolonged from a front end in the drill lip portion to the drill shank spiral
It stretches, drill lip portion is equipped with spiral side edge, and drill lip portion front end is equipped with cutting end sword, and spiral side edge front end connects with cutting end sword, drill lip
Portion's sword body at the back side at spiral side edge is recessed inwardly to form counter drain, and counter drain front end extends on rear side of the sword of cutting end, counter drain rear end
Gradually extend to chip removal flute and is integrated with chip removal flute.
Further, the drill lip portion front end is equipped with balance weight in the cutting end sword other side.
Further, the cutting end sword and axis angle are 130 °.
Further, the balance weight end face is less than cutting end sword and axis angle with axis angle
The utility model has the beneficial effects that：Using the above scheme, counter drain reduces front end size, is convenient for rapid feed, resistance
Power is small, and stock-removing efficiency is high, and counter drain can promote to cut outer row, and position one is closed in counter drain rear portion with chip removal flute, accelerates chip discharge, and
The intensity on rear side of drill lip portion is improved, avoids damage to bore edging structure, drill point is made integrally to keep higher rigidity, cutting end sword
It is big with axis angle, the structural strength at this is improved, crushing knife is avoided.
Description of the drawings
Through the following detailed description taken in conjunction with the accompanying drawings, the utility model objects, features and advantages above-mentioned and other will
It becomes apparent.
Fig. 1 is utility model diagram.
Fig. 2 is the utility model front view.
Wherein：1 is drill shank, and 2 be drill lip portion, and 21 be chip removal flute, and 22 be spiral side edge, and 23 be cutting end sword, and 24 be flat
Weigh block, and 3 be counter drain.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig.1, Fig. 2 single sides single hook drill point includes the drill lip portion 2 of a drill shank 1,1 front end of drill shank, bores
Blade 2 is centered on axis of rotation, one debris ditch 21 of a peripheral surface spiralization in the drill lip portion 2, chip removal flute 21
It is extended spirally from a front end in the drill lip portion 2 to the drill shank, drill lip portion 2 is equipped with spiral side edge 22, and 2 front end of drill lip portion is equipped with and cuts
End sword 23 is cut, 22 front end of spiral side edge connects with cutting end sword 23, and the sword body at the back side at spiral side edge 22 of drill lip portion 2 concaves
It falls into and forms counter drain 3,3 front end of counter drain extends to 23 rear side of cutting end sword, and 3 rear end of counter drain gradually extends to chip removal flute 21 and and chip removal
Ditch 21 is integrated, and cutting end sword is 130 ° with axis angle α, and counter drain 3 reduces front end size, is convenient for rapid feed, and resistance is small,
Stock-removing efficiency is high, and counter drain can promote to cut outer row, and counter drain rear portion closes position one with chip removal flute, accelerates chip discharge, and improve
The intensity on rear side of drill lip portion is improved, avoids damage to bore edging structure, drill point is made integrally to keep higher rigidity, cutting end sword and axis
Wire clamp angle is big, improves the structural strength at this, avoids crushing knife.
Embodiment 2：Referring to Fig.1, Fig. 2, single side single hook drill point include the drill lip portion 2 of a drillstock 1,1 front end of drill shank, bore
Blade 2 is centered on axis of rotation, one debris ditch 21 of a peripheral surface spiralization in the drill lip portion 2, chip removal flute 21
It is extended spirally from a front end in the drill lip portion 2 to the drill shank, drill lip portion 2 is equipped with spiral side edge 22, and 2 front end of drill lip portion is equipped with and cuts
End sword 23 is cut, 22 front end of spiral side edge connects with cutting end sword 23, and the sword body at the back side at spiral side edge 22 of drill lip portion 2 concaves
It falls into and forms counter drain 3,3 front end of counter drain extends to 23 rear side of cutting end sword, and 3 rear end of counter drain gradually extends to chip removal flute 21 and and chip removal
Ditch 21 is integrated, and cutting end sword is 130 ° with axis angle α, and counter drain 3 reduces front end size, is convenient for rapid feed, and resistance is small,
Stock-removing efficiency is high, and counter drain can promote to cut outer row, and counter drain rear portion closes position one with chip removal flute, accelerates chip discharge, and improve
The intensity on rear side of drill lip portion is improved, avoids damage to bore edging structure, drill point is made integrally to keep higher rigidity, cutting end sword and axis
Wire clamp angle is big, improves the structural strength at this, and crushing knife, 2 front end of drill lip portion is avoided to be equipped with balance weight in 22 other side of cutting end sword
24, stress at this is balanced, promotes drill point steady, balance block size is less than cutting end sword, and balance weight end face is less than with axis angle
Cutting end sword and axis angle avoid generating interference to cutting end sword.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
It makes, to any simple modification, equivalent variations made by above example in every foundation the technical essence of the utility model, falls
Enter within the scope of protection of the utility model.
Claims (4)
1. single side single hook drill point, which is characterized in that the drill lip portion including drill shank, drill shank front end, drill lip portion is with axis of rotation
Centered on, one debris ditch of peripheral surface spiralization in drill lip portion, chip removal flute is from a front end in the drill lip portion to the brill
Shank extends spirally, and drill lip portion is equipped with spiral side edge, and drill lip portion front end is equipped with cutting end sword, spiral side edge front end and cutting end sword
Connecting, drill lip portion sword body at the back side at spiral side edge is recessed inwardly to form counter drain, and counter drain front end extends on rear side of the sword of cutting end,
Counter drain rear end gradually extends to chip removal flute and is integrated with chip removal flute.
2. single side single hook drill point according to claim 1, which is characterized in that the drill lip portion front end is another in cutting end sword
Side is equipped with balance weight.
3. single side single hook drill point according to claim 1, which is characterized in that the cutting end sword is with axis angle
130°。
4. single side single hook drill point according to claim 2, which is characterized in that the balance weight end face is less than with axis angle
Cutting end sword and axis angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927415.9U CN207942021U (en) | 2017-12-31 | 2017-12-31 | Single side single hook drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927415.9U CN207942021U (en) | 2017-12-31 | 2017-12-31 | Single side single hook drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207942021U true CN207942021U (en) | 2018-10-09 |
Family
ID=63701144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721927415.9U Expired - Fee Related CN207942021U (en) | 2017-12-31 | 2017-12-31 | Single side single hook drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207942021U (en) |
-
2017
- 2017-12-31 CN CN201721927415.9U patent/CN207942021U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |