CN206286612U - A kind of chip discharging structure of drill bit - Google Patents

A kind of chip discharging structure of drill bit Download PDF

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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
Authority
CN
China
Prior art keywords
chip
drill bit
drilling rod
cutting edge
chip area
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
Application number
CN201621083576.XU
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Chinese (zh)
Inventor
不公告发明人
Original Assignee
刘小蓉
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 刘小蓉 filed Critical 刘小蓉
Priority to CN201621083576.XU priority Critical patent/CN206286612U/en
Application granted granted Critical
Publication of CN206286612U publication Critical patent/CN206286612U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of chip discharging structure of drill bit
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.
CN201621083576.XU 2016-09-27 2016-09-27 A kind of chip discharging structure of drill bit Expired - Fee Related CN206286612U (en)

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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109674548A (en) * 2019-01-11 2019-04-26 夏天永 A kind of centrifugation drill bit for Dental implantion technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109674548A (en) * 2019-01-11 2019-04-26 夏天永 A kind of centrifugation drill bit for Dental implantion technology

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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