CN206286612U - A kind of chip discharging structure of drill bit - Google Patents
A kind of chip discharging structure of drill bit Download PDFInfo
- Publication number
- CN206286612U CN206286612U CN201621083576.XU CN201621083576U CN206286612U CN 206286612 U CN206286612 U CN 206286612U CN 201621083576 U CN201621083576 U CN 201621083576U CN 206286612 U CN206286612 U CN 206286612U
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- China
- Prior art keywords
- chip
- drill bit
- drilling rod
- cutting edge
- chip area
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Abstract
The utility model provides a kind of chip discharging structure of drill bit, belongs to machine tool technical field.It solves the existing low technical problem of drill bit chip removal efficiency.This drill bit includes drilling rod and cutter head, cutter head is welded on the end of drilling rod, and cutter head has four cutting edges, and four cutting edges are along the circumferentially-spaced distribution of drilling rod, this chip discharging structure include four with the one-to-one chip area of cutting edge, the end of each chip area is towards cutting edge corresponding thereto.By setting four with the one-to-one chip area of cutting edge in the utility model, it is possible to increase the chip removal efficiency of drill bit, chip removal demand is met.
Description
Technical field
The utility model belongs to machine tool technical field, is related to a kind of drill bit, the chip removal knot of particularly a kind of drill bit
Structure.
Background technology
Drill bit is the instrument of a kind of common machining or production operation, can be drilled on workpiece or construction object, fortune
With on various electric drills, drilling machine or drilling machine, using in extensive range, while the species of drill bit is also varied, usual drill bit is all
Including a knife bar, knife bar has a tip, and there is cutting blade at tip；Drill bit can produce substantial amounts of broken in drilling process
Bits, chip discharging structure is the indispensable part of drill bit, on existing drill bit knife bar generally have chip area, when using drill bit around
Vertical shaft rotates, while moving axially, workpiece or construction object are cut and portal under the moment of torsion and responsive to axial force of drill bit, broken
Bits are discharged from chip area.
China's patent document (notification number：CN203592176U；The day for announcing：A kind of new beat is disclosed in 2014-05-14)
Drill, including drilling rod, bite, drilling rod are provided with connector, and the skewed slot being adapted to bite, skewed slot are included on connector
It is divided into the first protection portion, the second protection portion by connector center and by connector, bite includes two arc milling swords, two
Bar arc milling sword is engaged on bite top and forms point of a knife of the angle less than 90 degree；Protection portion be the thicker other end in one end compared with
Thin skewback, drilling rod is welded with bite, and drilling rod the week side of boss is provided with anti-dandruff screw thread.Drill bit in the patent due to the utility model
In drill bit structure it is different, therefore its chip discharging structure is also different.The applicant once applied for a kind of new drill bit structure (bulletin
Number：CN105772809A；The day for announcing：2016-07-20), the new drill can greatly promote drilling speed, but applicant
Finding the chip removal speed of the drill bit in use can not meet demand, the normal brill for blocking and influenceing drill bit easily occur
Cut.
The content of the invention
The above mentioned problem that the utility model exists for existing technology, there is provided a kind of chip discharging structure of drill bit, this practicality
New technical problem to be solved is：How the chip removal efficiency of drill bit is improved.
The purpose of this utility model can be realized by following technical proposal：
A kind of chip discharging structure of drill bit, drill bit includes drilling rod and cutter head, and the cutter head is welded on the end of the drilling rod, institute
Cutter head is stated with four cutting edges, four cutting edges are along the circumferentially-spaced distribution of drilling rod, it is characterised in that the chip discharging structure includes
Four with the one-to-one chip area of the cutting edge, the end of each chip area is towards cutting edge corresponding thereto.
Its principle is as follows：Normal drill bit of the prior art generally only two is just to the cutting edge for setting, two such
The point of a knife that cutting edge is formed is sharper, is easy to the efficient operation when pulling out of hole, but follow-up due to the limited amount of cutting edge, and
And the rotating speed of drilling rod is limited, cause the efficiency of borehole cuttings low；Improved drill bit is provided with four on cutter head and cuts before applicant
Sword is cut, stock-removing efficiency is substantially improved, the efficiency that chip is produced also is lifted therewith, and original two chip areas can not meet demand,
By setting four with the one-to-one chip area of cutting edge in the technical program, it is possible to increase the chip removal efficiency of drill bit, meet
Chip removal demand.
In the chip discharging structure of above-mentioned drill bit, four chip areas are arranged on the periphery of the drilling rod in the shape of a spiral
On face and four chip area uniform intervals distributions.So chip removal is more uniform, prevents wherein certain chip area from blocking, and another
The idle unbalanced phenomena of one chip area.
In the chip discharging structure of above-mentioned drill bit, the cross section of each chip removal groove bottom is curved.Can so make
The smooth inlet and outlet chip area of chip.
In the chip discharging structure of above-mentioned drill bit, auxiliary tank is further opened with the drilling rod between every two neighboring cutting edge,
The auxiliary tank extended at chip area along the end of the axially arranged and described auxiliary tank of drilling rod and with corresponding chip area
It is connected.Increase the chip removal efficiency of cutter head installation portion by auxiliary tank.
Compared with prior art, by setting four and the one-to-one chip area of cutting edge in the utility model, can
The chip removal efficiency of drill bit is improved, chip removal demand is met.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of this drill bit.
Fig. 2 is the dimensional structure diagram of cutter head in this drill bit.
In figure, 1, drilling rod；11st, chip area；12nd, auxiliary tank；2nd, cutter head；21st, cutting edge.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Normal drill bit of the prior art generally only two is just to the cutting edge 21 for setting, the shape of two such cutting edge 21
Into point of a knife it is sharper, be easy to the efficient operation when pulling out of hole, but it is follow-up due to the limited amount of cutting edge 21, and drilling rod
1 rotating speed is limited, causes the efficiency of borehole cuttings low；Improved drill bit is provided with four cutting edges on cutter head 2 before applicant
21, stock-removing efficiency is substantially improved, and the efficiency that chip is produced also is lifted therewith, and original two chip areas 11 can not meet demand,
Therefore improved applicant carried out further.As depicted in figs. 1 and 2, this drill bit includes drilling rod 1 and cutter head 2, and cutter head 2 is welded
In the end of drilling rod 1, cutter head 2 has four cutting edges 21, and four cutting edges 21 are along the circumferentially-spaced distribution of drilling rod 1, chip discharging structure
Including four with the one-to-one chip area 11 of cutting edge 21, the end of each chip area 11 is towards cutting edge corresponding thereto
21, four chip areas 11 are arranged on the outer peripheral face of drilling rod 1 and four uniform intervals of chip area 11 distributions in the shape of a spiral；Each
The cross section of the bottom surface of chip area 11 is curved, and auxiliary tank 12 is further opened with the drilling rod 1 between every two neighboring cutting edge 21, auxiliary
Help groove 12 extended at chip area 11 along the end of the axially arranged and auxiliary tank 12 of drilling rod 1 and with the corresponding phase of chip area 11
Connection.By setting four with the one-to-one chip area 11 of cutting edge 21, it is possible to increase the chip removal efficiency of drill bit, chip removal is met
Demand.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used 1, drilling rod herein；11st, chip area；12nd, auxiliary tank；2nd, cutter head；21st, the art such as cutting edge
Language, but it is not precluded from using the possibility of other terms.It is used for the purpose of more easily describing and explaining this using these terms
The essence of utility model；Any additional limitation is construed as all to be disagreed with the utility model spirit.
Claims (2)
1. a kind of chip discharging structure of drill bit, drill bit includes drilling rod (1) and cutter head (2), and the cutter head (2) is welded on the drilling rod
(1) end, the cutter head (2) with four cutting edges (21), four cutting edges (21) along drilling rod (1) circumferentially-spaced distribution,
Characterized in that, the chip discharging structure includes four with the one-to-one chip area (11) of the cutting edge (21), each chip removal
The end direction of groove (11) cutting edge (21) corresponding thereto；The cross section of each chip area (11) bottom surface is curved；
Auxiliary tank (12) is further opened with drilling rod (1) between per two neighboring cutting edge (21), the auxiliary tank (12) is along drilling rod (1)
The end of axially arranged and described auxiliary tank (12) extend to chip area (11) place and be connected with corresponding chip area (11)
It is logical.
2. the chip discharging structure of drill bit according to claim 1, it is characterised in that four chip areas (11) are helically
Shape is arranged on the outer peripheral face of the drilling rod (1) and four chip area (11) uniform intervals distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621083576.XU CN206286612U (en) | 2016-09-27 | 2016-09-27 | A kind of chip discharging structure of drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621083576.XU CN206286612U (en) | 2016-09-27 | 2016-09-27 | A kind of chip discharging structure of drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206286612U true CN206286612U (en) | 2017-06-30 |
Family
ID=59094548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621083576.XU Expired - Fee Related CN206286612U (en) | 2016-09-27 | 2016-09-27 | A kind of chip discharging structure of drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206286612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989544A (en) * | 2017-12-31 | 2018-05-04 | 重庆聚亨机械有限公司 | Drill wagon for jack hammer |
| CN109674548A (en) * | 2019-01-11 | 2019-04-26 | 夏天永 | A kind of centrifugation drill bit for Dental implantion technology |
-
2016
- 2016-09-27 CN CN201621083576.XU patent/CN206286612U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989544A (en) * | 2017-12-31 | 2018-05-04 | 重庆聚亨机械有限公司 | Drill wagon for jack hammer |
| CN109674548A (en) * | 2019-01-11 | 2019-04-26 | 夏天永 | A kind of centrifugation drill bit for Dental implantion technology |
| CN109674548B (en) * | 2019-01-11 | 2023-06-20 | 夏天永 | Centrifugal drill bit for dental implantation technology |
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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: 20170630 Termination date: 20180927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |