CN206981825U - A kind of alloy bit for being easy to chip removal - Google Patents
A kind of alloy bit for being easy to chip removal Download PDFInfo
- Publication number
- CN206981825U CN206981825U CN201720903044.4U CN201720903044U CN206981825U CN 206981825 U CN206981825 U CN 206981825U CN 201720903044 U CN201720903044 U CN 201720903044U CN 206981825 U CN206981825 U CN 206981825U
- Authority
- CN
- China
- Prior art keywords
- cutting
- cutting face
- cutter head
- alloy
- 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.)
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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
-
- 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
Abstract
It the utility model is related to a kind of alloy bit for being easy to chip removal, it is characterised in that described drilling rod includes cutting portion and chip removal portion, and cutting portion is provided with cutter head groove, and chip removal portion is provided with helical flute；The first cutting face and the second cutting face are respectively equipped with the cutter head groove both sides of described cutting portion, the first cutting face and the second cutting face are connected with helical flute respectively；The angle A a in the first described cutting face is 45 ° ± 1 °, and the angle A b in the second described cutting face is 67.5 ° ± 1 °.The beneficial effects of the utility model are to increase the angle in the first cutting face of alloy bit cutting portion both sides and the second cutting face, the so relative burr and chip clearance for increasing bit cutting face and helical flute, cut scrap can quickly by helical flute tap outside, avoid scrap from reducing working efficiency to the friction that alloy cutter head and cutting portion are repeated in hole and lift the operating temperature of alloy cutter head, effectively increase the working efficiency and service life of alloy bit.
Description
Technical field
A kind of hardware ＆ tools is the utility model is related to, more particularly to a kind of alloy bit for being easy to chip removal is main
To be applied to the fields such as hardware drill bit.
Background technology
Existing alloy bit is mainly made up of drilling rod and alloy cutter head, in order to improve the cutting ability of drill bit and using the longevity
Life, alloy cutter head needs to be welded on the end of drilling rod, so when drill bit at work, alloy cutter head can be quickly on working face
Carry out cutting operation.Existing drilling rod Access Division, chip removal portion and cutting portion, cutting portion are provided with welding groove, and alloy cutter head is fixed
In welding groove.Because the cutting face angle of existing drilling rod cutting portion does not have national standard to be limited, so existing alloy
What the cutting face angle on drill bit drilling rod cutting portion was in accordance with external or customer requirement and produced.And cut due to existing
The cutting face angle cut in portion is excessive, causes chip removal interval at its chip removal notches with chip removal portion just to diminish, causes alloy to bore
At work, chip removal not in time, influences the working efficiency of alloy bit to head；Secondly, the scrap that alloy cutter head is cut can not
Discharge in time, can cause the repetition of the cutting portion of alloy cutter head and drilling rod carries out spin friction with scrap, can so make alloy knife
The temperature of head drastically raises, so as to influence the service life of alloy bit.
Utility model content
It is larger in order to solve the chip portion cutting face angle of existing alloy bit, cause the chip removal interval of chip removal notches to become
It is small, cause chip removal not in time, influence the technical problem such as the working efficiency of alloy bit and the service life of alloy bit, this practicality
A kind of alloy bit for being easy to chip removal of new offer, the drill bit not only can quick chip removal, improve the working efficiency of alloy bit；Together
When, the operating temperature of alloy cutter head can be also effectively reduced, so as to extend the service life of alloy bit.
To solve above technical problem, the utility model adopts the technical scheme that a kind of alloy bit for being easy to chip removal,
Including drilling rod and the alloy cutter head on drilling rod, it is characterised in that described drilling rod includes cutting portion and chip removal portion,
Cutting portion is provided with cutter head groove, and chip removal portion is provided with helical flute；It is respectively equipped with the cutter head groove both sides of described cutting portion
First cutting face and the second cutting face, the first cutting face and the second cutting face are connected with helical flute respectively；Described
The angle A a in one cutting face is 45 ° ± 1 °, and the angle A b in the second described cutting face is 67.5 ° ± 1 °.
Further, on described cutting portion cutter head groove close to the second section face side cell wall thickness for 1mm ±
0.2mm。
Further, the depth of described cutter head groove is less than alloy cutter head height 0.2mm~1mm.
The beneficial effects of the utility model are by the first cutting face and the second cutting face of alloy bit cutting portion both sides
Angle increases, and the so relative burr and chip clearance for increasing bit cutting face and helical flute, cutting scrap can quickly lead to
Cross outside helical flute tap, avoid scrap from reducing work to the friction that alloy cutter head and cutting portion are repeated in hole
The operating temperature of benefit and lifting alloy cutter head, effectively increase the working efficiency and service life of alloy bit.
Brief description of the drawings
Fig. 1 is a kind of front view for the alloy cutter head for being easy to chip removal of the utility model embodiment
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in figure 1, the utility model is a kind of alloy bit for being easy to chip removal, include drilling rod and on drilling rod
Alloy cutter head, it is characterised in that described drilling rod includes cutting portion 1 and chip removal portion 2, and cutting portion 1 is provided with cutter head groove 3, row
Bits portion 2 is provided with helical flute 4；The first cutting face 5 and second is respectively equipped with the both sides of cutter head groove 3 of described cutting portion 1
Cutting face 6, the first cutting face 5 and the second cutting face 6 are connected with helical flute 4 respectively；The angle in the first described cutting face 5
It is 45 ° ± 1 ° to spend Aa, and the angle A b in the second described cutting face 6 is 67.5 ° ± 1 °.By the of the both sides of alloy bit cutting portion 1
The angle in one cutting face 5 and the second cutting face 6 increases, the so relative row for increasing bit cutting portion 1 and helical flute 4
Consider to be worth doing gap, cutting scrap can quickly by the tap of helical flute 4 outside, avoid scrap in hole to alloy cutter head and cutting
Friction that portion 1 is repeated and reduce working efficiency and lift the operating temperature of alloy cutter head, effectively increase alloy bit
Working efficiency and service life；Certainly, the first cutting angle 5 and the second cutting angle 6 can be also customized according to the requirement of client；Or
Person sets smaller or greater angle, such as sets smaller angle, virtually reduces between cutting portion 1 and helical flute 4
Gap, scrap just can not be quickly outside tap；And if setting greater angle, although can be easy to quickly discharge scrap,
But the intensity of cutting portion 1 can be influenceed, cutting portion 1 is easily caused and is broken, therefore, the embodiment of the present embodiment is the technology of our company
Personnel are preferred embodiment by constantly testing the optimal corner angle value to obtain.
In the present embodiment, in order to further increase the gap between cutting portion 1 and helical flute 4, cut in described
It is 1mm ± 0.2mm to cut side cell wall L thickness of the cutter head groove 3 close to the second section face 6 in portion 1；By controlling cutter head groove 3 close
The cell wall L thickness of the side of second cutting face 6, the gap of so relative further lifting cutting portion 1 and helical flute 4,
In drill bit drill process, scrap just can faster by the tap of helical flute 4 outside, beaten so as to effectively lift alloy bit
Hole benefit and the operating temperature of reduction alloy cutter head increase the service life.
In the present embodiment, in order to lift the punching benefit of alloy bit and increase the service life, described cutter head groove 3
Depth is less than alloy cutter head height 0.2mm~1mm；The ride out of alloy cutter head is adjusted by reducing the depth of cutter head groove 3,
It so can not only ensure cutting benefit during punching, meanwhile, it can also farthest extend the service life of alloy bit；Specifically
Height can be customized according to the specification of drill bit or the requirement of client, but the depth of cutter head groove is this reality less than 0.2mm~1mm
With new preferred embodiment.
Above-described embodiment is not construed as to limitation of the present utility model, but any is made based on spirit of the present utility model
Improve, all should be within the scope of protection of the utility model.
Claims (3)
1. a kind of alloy bit for being easy to chip removal, include drilling rod and the alloy cutter head on drilling rod, it is characterised in that institute
The drilling rod stated includes cutting portion and chip removal portion, and cutting portion is provided with cutter head groove, and chip removal portion is provided with helical flute；Described
The cutter head groove both sides of cutting portion be respectively equipped with the first cutting face and the second cutting face, the first cutting face and the second cutting face difference
It is connected with helical flute；The angle A a in the first described cutting face is 45 ° ± 1 °, the angle A b in the second described cutting face
For 67.5 ° ± 1 °.
2. a kind of alloy bit for being easy to chip removal according to claim 1, it is characterised in that in described cutting portion upper slitter
Side cell wall thickness of the head groove close to the second section face is 1mm ± 0.2mm.
A kind of 3. alloy bit for being easy to chip removal according to claim 1 or 2, it is characterised in that the depth of described cutter head groove
Degree is less than alloy cutter head height 0.2mm~1mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903044.4U CN206981825U (en) | 2017-07-24 | 2017-07-24 | A kind of alloy bit for being easy to chip removal |
| PCT/CN2017/103068 WO2019019334A1 (en) | 2017-07-24 | 2017-09-25 | Alloy drill bit facilitating chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903044.4U CN206981825U (en) | 2017-07-24 | 2017-07-24 | A kind of alloy bit for being easy to chip removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206981825U true CN206981825U (en) | 2018-02-09 |
Family
ID=61416677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903044.4U Active CN206981825U (en) | 2017-07-24 | 2017-07-24 | A kind of alloy bit for being easy to chip removal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206981825U (en) |
| WO (1) | WO2019019334A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030121U (en) * | 1988-05-10 | 1989-01-04 | 西安石油学院 | Four-cutting-edge twist drill |
| CN2095724U (en) * | 1990-10-22 | 1992-02-12 | 西安石油学院 | Twist drill with non-symmetry chip flute |
| CN201455362U (en) * | 2008-11-02 | 2010-05-12 | 周安善 | Multiple edge point sheet twist drill with vertical milling knife-like outer edge, outer edge sharp angle of 200 degrees and outer edge lateral R-shaped edge |
| DK177090B1 (en) * | 2009-12-03 | 2011-07-18 | Bauer Drill I S | A rotary drill |
| DE102010019379A1 (en) * | 2010-05-04 | 2011-11-10 | Illinois Tool Works Inc. | Drill, Device for manufacturing and manufacturing method of a drill |
| CN103084629A (en) * | 2013-02-01 | 2013-05-08 | 周安善 | Twist drill with segmented main cutting blades and asymmetric blade opening height |
| CN203265714U (en) * | 2013-05-28 | 2013-11-06 | 尖点科技股份有限公司 | Fishtail-type drill pin used for circuit board |
-
2017
- 2017-07-24 CN CN201720903044.4U patent/CN206981825U/en active Active
- 2017-09-25 WO PCT/CN2017/103068 patent/WO2019019334A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019019334A1 (en) | 2019-01-31 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |