CN101157149A - A superhard material drilling bit - Google Patents

A superhard material drilling bit Download PDF

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Publication number
CN101157149A
CN101157149A CNA2007101709212A CN200710170921A CN101157149A CN 101157149 A CN101157149 A CN 101157149A CN A2007101709212 A CNA2007101709212 A CN A2007101709212A CN 200710170921 A CN200710170921 A CN 200710170921A CN 101157149 A CN101157149 A CN 101157149A
Authority
CN
China
Prior art keywords
blade
drill body
drill
superhard material
cast iron
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.)
Pending
Application number
CNA2007101709212A
Other languages
Chinese (zh)
Inventor
张太和
李和鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI MAIN PRECISION TOOLS CO Ltd
Original Assignee
SHANGHAI MAIN PRECISION TOOLS CO Ltd
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 SHANGHAI MAIN PRECISION TOOLS CO Ltd filed Critical SHANGHAI MAIN PRECISION TOOLS CO Ltd
Priority to CNA2007101709212A priority Critical patent/CN101157149A/en
Publication of CN101157149A publication Critical patent/CN101157149A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a super-hard material drill head, which comprises a drill body and a blade connected to the front end of the drill body, the blade material is polycrystalline diamond, or polycrystalline cubic boron nitride, or ceramic material. The blade can be installed by multiple methods. The PCD (polycrystalline diamond) or PCBN (polycrystalline cubic boron nitride) cutter, the ceramics drill head, and other non metal material cutter can be used for processing high hardness alloy cast iron (high Ni to Cr, high chromium, etc), ductile cast iron, gray cast iron (brake wheel, brake drum, etc), hardened steel, etc., the invention solves the processing problem that the material is hard to be processed in drilling and cutting field, the invention which also can be used for drilling and cutting the normal material can improve the cutting efficiency.

Description

A kind of superhard material drilling bit
Technical field
The present invention relates to a kind of drill bit, particularly a kind of drill bit of processing superhard material.
Background technology
Development along with material technology and manufacturing industry technology, various high performance new materials continue to bring out, require the machining drill bit to have more high rigidity, heat endurance, chemical inertness and appropriate toughness, brought great challenge for traditional alloy bit, also machining is more and more difficult.
Therefore be necessary to develop a kind of new drill bit, have more high rigidity, heat endurance, chemical inertness and appropriate toughness, can adapt to the needs of modern superhard material processing.
Summary of the invention
Technical problem to be solved by this invention is,, heat endurance imperfect deficiency not high enough at conventional drill hardness provides the drill bit of a kind of high rigidity, heat endurance, chemical inertness and appropriate toughness, is used to process superhard material.
In order to solve the problems of the technologies described above, the present invention adopts following technical proposal:
A kind of superhard material drilling bit is made of a drill body and the blade that is connected the drill body front end, and described blade is a polycrystalline diamond, or polycrystalline cubic boron nitride, or ceramic material.
Can adopt dual mode that blade is installed, one of them is, the front end fluting of drill body, and the built-in blade of groove, a tight lock screw passes the blade middle part blade tightly is locked on the drill bit, and a hold-down screw passes drill bit and withstands the blade rear portion.
Similar alternative arrangements is the front end fluting of drill body, welding one blade in the groove.
Useful technique effect of the present invention is, PCD (polycrystalline diamond), PCBN (polycrystalline cubic boron nitride) cutter and ceramic material drill bit and other nonmetallic materials cutters, can be used to process alloy cast iron (high nickel chromium triangle, the high ferrochrome of high rigidity ...), spheroidal graphite cast-iron, casting pig (brake disc, brake hoop ...), hardened steel etc., solve the difficult-to-machine material in drilling field, can solve in the common material drilling and cut efficiency.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the cut-away section structural representation of Fig. 1;
Fig. 3 is an another kind of structural representation of the present invention.
Description of symbols among the figure
1---drill body 2---blade
11---tightly locking screw 12---hold-down screw
The specific embodiment
Example 1
As depicted in figs. 1 and 2, a kind of superhard material drilling bit is made of a drill body 1 and the blade 2 that is connected drill body 1 front end, and described blade 2 is a polycrystalline diamond, or polycrystalline cubic boron nitride, or ceramic material.
In the present embodiment, the front end of drill body 1 fluting, the built-in blade of groove 2, one tight lock screws 11 pass blade 2 middle parts blade 2 tightly are locked on the drill bit, and a hold-down screw 12 passes the rear portion that drill bit withstands blade 2.
Example 2
As shown in Figure 3, a kind of superhard material drilling bit is made of a drill body 1 and the blade 2 that is connected drill body 1 front end, and described blade 2 is a polycrystalline diamond, or polycrystalline cubic boron nitride, or ceramic material.
In the present embodiment, drill body 1 front end fluting, welding one blade 2 in the groove.

Claims (3)

1. a superhard material drilling bit is made of a drill body and the blade that is connected the drill body front end, and it is characterized in that: described blade is a polycrystalline diamond, or polycrystalline cubic boron nitride, or ceramic material.
2. a kind of superhard material drilling bit according to claim 1 is characterized in that: the front end fluting of described drill body, and the built-in blade of groove, a tight lock screw passes the blade middle part blade tightly is locked on the drill bit, and a hold-down screw passes drill bit and withstands the blade rear portion.
3. a kind of superhard material drilling bit according to claim 1 is characterized in that: the front end fluting of described drill body, welding one blade in the groove.
CNA2007101709212A 2007-11-23 2007-11-23 A superhard material drilling bit Pending CN101157149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101709212A CN101157149A (en) 2007-11-23 2007-11-23 A superhard material drilling bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101709212A CN101157149A (en) 2007-11-23 2007-11-23 A superhard material drilling bit

Publications (1)

Publication Number Publication Date
CN101157149A true CN101157149A (en) 2008-04-09

Family

ID=39305450

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101709212A Pending CN101157149A (en) 2007-11-23 2007-11-23 A superhard material drilling bit

Country Status (1)

Country Link
CN (1) CN101157149A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601426A (en) * 2011-01-21 2012-07-25 钴碳化钨硬质合金公司 Modular drill with diamond cutting edges
CN103056916A (en) * 2012-08-01 2013-04-24 哈尔滨理工大学 Polycrystalline diamond air-breathing type drill bit and air-breathing type machining method
CN103492661A (en) * 2011-04-26 2014-01-01 史密斯国际有限公司 Polycrystalline diamond compact cutters with conic shaped end
CN106270664A (en) * 2016-08-30 2017-01-04 大连理工大学 A kind of polycrystalline diamond compact bit with the micro-toothing of flip Trim
CN107225271A (en) * 2016-03-23 2017-10-03 江苏天工工具有限公司 A kind of new high speed steel twist drill

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601426A (en) * 2011-01-21 2012-07-25 钴碳化钨硬质合金公司 Modular drill with diamond cutting edges
CN102601426B (en) * 2011-01-21 2016-03-02 钴碳化钨硬质合金公司 There is the Modular drill of Diamond Cutting sword
CN103492661A (en) * 2011-04-26 2014-01-01 史密斯国际有限公司 Polycrystalline diamond compact cutters with conic shaped end
US9739097B2 (en) 2011-04-26 2017-08-22 Smith International, Inc. Polycrystalline diamond compact cutters with conic shaped end
CN103056916A (en) * 2012-08-01 2013-04-24 哈尔滨理工大学 Polycrystalline diamond air-breathing type drill bit and air-breathing type machining method
CN103056916B (en) * 2012-08-01 2015-10-07 哈尔滨理工大学 A kind of polycrystalline diamond air suction type drill bit and air suction type processing method
CN107225271A (en) * 2016-03-23 2017-10-03 江苏天工工具有限公司 A kind of new high speed steel twist drill
CN106270664A (en) * 2016-08-30 2017-01-04 大连理工大学 A kind of polycrystalline diamond compact bit with the micro-toothing of flip Trim

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Open date: 20080409