CN202129875U - Diamond core drill bit - Google Patents
Diamond core drill bit Download PDFInfo
- Publication number
- CN202129875U CN202129875U CN201120258644U CN201120258644U CN202129875U CN 202129875 U CN202129875 U CN 202129875U CN 201120258644 U CN201120258644 U CN 201120258644U CN 201120258644 U CN201120258644 U CN 201120258644U CN 202129875 U CN202129875 U CN 202129875U
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- CN
- China
- Prior art keywords
- drill bit
- diamond thin
- rod
- wall
- diamond
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- 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
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Abstract
The utility model relates to a diamond core drill bit; the diamond core drill bit comprises a drill bit matrix and a barrel-shaped drill bit which are coaxially arranged; the diamond core drill bit is characterized in that a plurality of drilling teeth are discontinuously arranged on the edge of the outer end of the drill bit; the drilling teeth are circular-arc shaped; and diamond particles are applied to the surfaces of the drilling teeth. The diamond core drill bit has the advantages of high cutting efficiency and long service life and can be applied to the drilling and core-taking operations of nonmetal materials such as concrete, stone materials, glass, ceramics and the like and metal materials such as iron, aluminium and the like.
Description
Technical field
The utility model relates to a kind of drill bit, more particularly, the present invention relates to a kind of diamond thin-wall drill bit, be applicable to metal materials such as nonmetallic materials such as comprising concrete, stone material, glass, pottery and iron, aluminium boring, get core operation.
Background technology
Diamond bit is mainly used on hard articles such as pottery, glass and punches; The case hardness of these article is than higher; Adopt common steel drill bit to punch normally, because diamond bit hardness ratio pottery and glass are high, so can on these hard articles, punch.
Diamond thin-wall drill bit is a kind of novel boring bar tool, is made up of matrix and cutter head, has that bore size is accurate, speed is fast, the material periphery is not had damage and do not need characteristics such as subsequent handling.Be mainly used in and in various construction materials, creep into aperture and major diameter eyelet, during especially for engineering renovation or building reconstruction the laying of electric wire or pipeline favourable, this external concrete is deep, its instrument that also is absolutely necessary when cutting large diameter hole.
Common diamond thin-wall drill bit when the drill bit drilling, generally speaking, adopts the cooling fluid of certain pressure to inject through the hollow part of drill bit, and the minim gap of the inside and outside hole wall through drill bit and machined material forms path, reaches and cools off and the chip removal effect.Existing diamond thin-wall drill bit, its surfaces externally and internally that bores tooth all is a flat surface, mainly relies on end face to be aided with surfaces externally and internally drilling machined material, and drill bit is slowly pierced in the machined material, forms boring.Because drill bit when the drilling machined material, can produce a large amount of drilling heats, and the difficult drainage of the break flour under boring, be accumulated in drilling place, hinder going deep into of drill bit, rate of penetration is slowed down, and the break flour of piling up is because frictional heat; In addition, during work,, be difficult to inject enough cooling fluid cooling and chip removal, therefore, drill bit or machined material Yin Wendu raise deform, cause drill bit to lose efficacy because the hole wall gap of drill bit and machined material is minimum.
For example; Patent (CN2818026Y) discloses a kind of electroplated diamond thin-walled indented chisel, comprises bit matrix, and an end of bit matrix is a clamp holder; The other end is a drill body; The drill body thin-walled is provided with the inlet opening, and the front end of drill body is a cutting edge, and the periphery thin-walled of cutting edge is provided with the ridge design of mechanical presses moulding.This device can be in pottery and punching on glass, but owing to the dentation decorative pattern at this cutting edge place is concavo-convex straight-tooth, causes penetration rate slow, and efficient is low.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, and the diamond thin-wall drill bit of a kind of cutting efficiency height, long service life is provided.
In order to realize the purpose of the utility model, the present invention has adopted following technical scheme:
A kind of diamond thin-wall drill bit comprises it is characterized in that the bit matrix and the tubular drill bit of coaxial setting; Have several on the outer end edges of described drill bit and bore tooth; Described brill tooth is discontinuous arrangement, and described brill tooth is a circular arc, and its surface is applied with diamond abrasive grain.
Preferably, in the diamond thin-wall drill bit of the utility model, the number of described brill tooth is 4-15, along circumferentially evenly distributing of drill bit.More preferably, the number of brill tooth is 5.
Preferably, in the diamond thin-wall drill bit of the utility model, has U type groove between the adjacent brill tooth.U type groove can be used as rhone and chip area.
Preferably, in the diamond thin-wall drill bit of the utility model, said bit matrix is divided into the body of rod and the following body of rod, and an end of the said upward body of rod and the inner of the following body of rod axially are connected, and the other end of the last body of rod is used for linking to each other with electrical drilling machine.
Preferably, in the diamond thin-wall drill bit of the utility model, the said diameter of going up the body of rod is less than the body of rod and both junctions have a shoulder block down.After the last body of rod is contained on the electrical drilling machine, shoulder block will limit the inside that the body of rod continues to go deep into electrical drilling machine.
Preferably, in the diamond thin-wall drill bit of the utility model, described bit matrix inside has an inner chamber, and described lumen shaft is to running through described drill bit.
Preferably, in the diamond thin-wall drill bit of the utility model, have one or more on the sidewall of described bit matrix and water inlet its intracavity inter-connection.When drill bit in punching time; Passing along with process time; It is very fast that the temperature of drill lip part can rise; At this moment need cooling fluid be expelled in the inner chamber of bit matrix through water inlet, cooling fluid flows on the drill lip along the inwall of drill body, thereby drill lip is remained in the suitable temperature range.
Preferably, in the diamond thin-wall drill bit of the utility model, said drill bit and bit matrix are formed in one.
Preferably, in the diamond thin-wall drill bit of the utility model, an end of said drill bit and the inner of bit matrix axially are connected.
Preferably, in the diamond thin-wall drill bit of the utility model, the wall thickness of the following body of rod of said drill bit and bit matrix is 2-10mm.More preferably, its wall thickness is 2.5-5mm.
Preferably, in the diamond thin-wall drill bit of the utility model, the diameter of said drill bit is 25-150mm.
Preferably, in the diamond thin-wall drill bit of the utility model, described brill tooth surface is applied with diamond abrasive grain through soldering, laser weld, chemical vapour deposition (CVD) or plating.
The outer end of the diamond thin-wall drill bit of the utility model has the circular arc of unidirectional array and bores tooth, when drill bit rotates, bores tooth in the cutting of the surface of workpiece, thereby on workpiece, holes.Have arcuate surface because bore tooth, the top diamond is participated in drilling earlier when drilling, and the top diamond is polished fragmentation after a period of time.After highly reducing, the diamond of back exposes immediately, continues the drilling workpiece is holed.Thereby reached the effect of lasting drilling.In addition, on bit matrix, offer water inlet, can in the process of punching, cooling in time bore tooth, ins conjunction with the discrete brill odontoid of circular arc, thereby significant prolongation the life-span of brill tooth.
Description of drawings
Fig. 1 is the floor map of the diamond thin-wall drill bit of an embodiment of the utility model.
The specific embodiment
Following the present invention will combine accompanying drawing and concrete embodiment that the utility model is done further explanation and explanation.The applicant is that embodiment and accompanying drawing only are in order to further specify technical scheme of the present invention, must not it to be interpreted as the restriction to the invention protection domain what this need declare.
Referring to Fig. 1, Fig. 1 is the floor map of the diamond thin-wall drill bit matrix of an embodiment of the utility model.The diamond thin-wall drill bit of present embodiment comprises having the bit matrix 1 and tubular drill bit 2 of coaxial setting 5 on the outer end edges of described drill bit and bore teeth 3; Described brill tooth is discontinuous arrangement, and described brill tooth is a circular arc, has U type groove between the adjacent brill tooth; And its surface is applied with diamond abrasive grain 4, states bit matrix and is divided into the body of rod 12 and the following body of rod 11, and an end of the said upward body of rod 12 and the inner of the following body of rod 11 axially are connected; The other end of the last body of rod 12 is used for linking to each other with electrical drilling machine; The said diameter of going up the body of rod 12 has a shoulder block 13 less than the following body of rod 11 and both junctions, and described bit matrix inside has an inner chamber 14, and described lumen shaft is to running through described drill bit; Has water inlet 16 on the sidewall 15 of described bit matrix with its intracavity inter-connection; Said drill bit 2 is formed in one with bit matrix 1, and the wall thickness of the following body of rod of said drill bit and bit matrix is 2.5mm, and the diameter of said drill bit is 50mm.
The above; Be merely the preferred embodiment of the utility model; Can not be interpreted as with this and limit scope of the present invention, the embodiment of all distortion of in claims of the present invention require the scope of protection, being made that is equal to and change is all in the scope that the present invention requires to protect.
Claims (10)
1. diamond thin-wall drill bit comprises it is characterized in that the bit matrix and the tubular drill bit of coaxial setting; Have several on the outer end edges of described drill bit and bore tooth; Described brill tooth is discontinuous arrangement, and described brill tooth is a circular arc, and its surface is applied with diamond abrasive grain.
2. diamond thin-wall drill bit according to claim 1, the number that it is characterized in that described brill tooth are 4-15, along circumferentially evenly distributing of drill bit.
3. diamond thin-wall drill bit according to claim 1; Be characterised in that said bit matrix is divided into the body of rod and the following body of rod; One end of the said upward body of rod and the inner of the following body of rod axially are connected; The other end of the last body of rod is used for linking to each other with electrical drilling machine, and the said diameter of going up the body of rod is less than the body of rod and both junctions have a shoulder block down.
4. diamond thin-wall drill bit according to claim 1 is characterised in that described bit matrix inside has an inner chamber, and described lumen shaft is to running through described drill bit.
5. diamond thin-wall drill bit according to claim 1 is characterised in that to have one or more and water inlet its intracavity inter-connection on the sidewall of described bit matrix.
6. diamond thin-wall drill bit according to claim 1 is characterised in that said drill bit and bit matrix are formed in one.
7. diamond thin-wall drill bit according to claim 1 is characterised in that an end of said drill bit and the inner of bit matrix axially are connected.
8. diamond thin-wall drill bit according to claim 1, the wall thickness that is characterised in that the following body of rod of said drill bit and bit matrix is 2-10mm.
9. diamond thin-wall drill bit according to claim 1, the diameter that is characterised in that said drill bit is 25-150mm.
10. diamond thin-wall drill bit according to claim 1 is characterised in that described brill tooth surface is applied with diamond abrasive grain through soldering, laser weld, chemical vapour deposition (CVD) or plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120258644U CN202129875U (en) | 2011-07-21 | 2011-07-21 | Diamond core drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120258644U CN202129875U (en) | 2011-07-21 | 2011-07-21 | Diamond core drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202129875U true CN202129875U (en) | 2012-02-01 |
Family
ID=45518659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120258644U Expired - Fee Related CN202129875U (en) | 2011-07-21 | 2011-07-21 | Diamond core drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202129875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903807A (en) * | 2017-05-03 | 2017-06-30 | 金代圣 | Diamond bit |
| CN107107223A (en) * | 2014-12-22 | 2017-08-29 | 喜利得股份公司 | Method for the jumping through rings body of the closing that makes coring bit |
-
2011
- 2011-07-21 CN CN201120258644U patent/CN202129875U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107107223A (en) * | 2014-12-22 | 2017-08-29 | 喜利得股份公司 | Method for the jumping through rings body of the closing that makes coring bit |
| CN106903807A (en) * | 2017-05-03 | 2017-06-30 | 金代圣 | Diamond bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |