CN102528942B - High-efficiency diamond bit - Google Patents
High-efficiency diamond bit Download PDFInfo
- Publication number
- CN102528942B CN102528942B CN201110446959.4A CN201110446959A CN102528942B CN 102528942 B CN102528942 B CN 102528942B CN 201110446959 A CN201110446959 A CN 201110446959A CN 102528942 B CN102528942 B CN 102528942B
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- Prior art keywords
- carcass
- sharp
- cutter head
- wear
- blank
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 37
- 239000010432 diamond Substances 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 239000011241 protective layer Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 239000010941 cobalt Substances 0.000 claims description 14
- 229910017052 cobalt Inorganic materials 0.000 claims description 14
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- 238000005476 soldering Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000004575 stone Substances 0.000 description 11
- 238000000227 grinding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000000889 atomisation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 101150095744 tin-9.1 gene Proteins 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
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- Earth Drilling (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
Abstract
A high-efficiency diamond bit comprises a base and a tool bit fixedly disposed on the base. The tool bit consists of an inner sharp blank, an outer sharp blank and a wear-resistant hard blank sandwiched between the inner sharp blank and the outer sharp blank, and diamond particles and pre-alloyed powder are sintered after being mixed to form each of the inner sharp blank, the outer sharp blank and the wear-resistant hard blank. The tool bit is a sandwich type structure, namely, the wear-resistant hard blank is sandwiched between the inner sharp blank and the outer sharp blank, and excellent sharpness of the top of the tool bit is improved. In addition, when the tool bit grinds, the hardness of the inner sharp blank and the hardness of the outer sharp blank are lower than the hardness of the wear-resistant hard blank, accordingly, a triangular pointed edge can be constantly formed on the top of the tool bit, an excellent self-sharpening performance and excellent sharpness of the cutting head are constantly kept, and cutting force is high.
Description
Technical field
The invention belongs to field of machining, refer to particularly a kind of efficient diamond drill and production technology.
Background technology
The drill bit of making cutting edge is called diamond bit, and it comprises cutter head and steel matrix, and this cutter head is directly fixed on the end face of steel matrix top by welding manner.Take cutting stone material as example, and the steel matrix of this diamond bit is fixedly arranged on machine, by the rotating mechanism on machine, drives diamond bit to be rotated cutting to stone material.
At present, sinter molding after the cutter head of diamond bit generally adopts diamond particles and metal dust to mix, the mixture that diamond particles and metal dust form is more even, the stressed equalization of cutter head, cutter head top is easily polished, the sharpness at cutter head top is poor, and in existing metal dust, the proportioning of composition is not ideal enough, causes wearing no resistance of cutter head.In stone material Grinding Process, a diamond bit generally can only bore 100 holes, and grinding force is poor, and working (machining) efficiency is low, and the poor continuity of stone material grinding operation affects the production efficiency of processing stone material.
Summary of the invention
The invention provides a kind of efficient diamond drill and production technology, its main purpose is to overcome the defect that the sharpness that existing diamond bit exists is poor, wear no resistance and affect processing stone material production efficiency.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of efficient diamond drill, comprise matrix and be fixedly arranged on the cutter head on matrix, this cutter head consists of interior sharp carcass, outer sharp carcass and the wear-resisting hard carcass that is located between inside and outside sharp carcass, sinter molding after this inside and outside sharp carcass and wear-resisting hard carcass mix by diamond particles and pre-alloyed powder;
Each component that the pre-alloyed powder of above-mentioned inside and outside sharp carcass includes following percentage by weight forms: cobalt 30-50%, iron 7-22%, nickel 4-12%, copper 13-27%, tin 3-12%;
The pre-alloyed powder of above-mentioned wear-resisting hard carcass comprises that each component of following percentage by weight forms: cobalt 30-50%, iron 5-20%, nickel 2-10%, tungsten 2-10%, copper 11-25%, tin 1-10%.
The top of above-mentioned inside and outside sharp carcass is equipped with an inclined plane, and the inclined plane of this interior sharp carcass and the inclined plane of outer sharp carcass be the symmetrical formation triangle pinnacle edge of a knife centered by wear-resisting hard carcass.
Above-mentioned cutter head is provided with four, the outer sharp carcass of each cutter head is provided with two outer channel of being separated by and distributing, the length direction of this two outer channel is identical with outer sharp carcass short transverse, the interior sharp carcass of each cutter head is provided with an internal channel, and the length direction of this internal channel is identical with interior sharp carcass short transverse.
Above-mentioned matrix lateral wall also soldering has four the uniform outer dlc protective layers of being separated by, and these four outer dlc protective layers are all rectangle, and the ratio of its length is 40:8:0.1; Described matrix madial wall also soldering has four the uniform interior dlc protective layers of being separated by, and these four interior dlc protective layers are also all rectangle, and the ratio of its length is 10:8:0.1.
The top end face of above-mentioned matrix offers for assembling the recess of cutter head, and the connecting portion of described cutter head is welded in recess.
The degree of depth of above-mentioned recess is 3mm.
A production technology for efficient diamond drill, it comprises the following steps:
A) according to the percentage by weight configuration of cobalt 30-50%, iron 7-22%, nickel 4-12%, copper 13-27%, tin 3-12%, through atomization, process the pre-alloyed powder of making sharp carcass, according to the percentage by weight configuration of cobalt 30-50%, iron 5-20%, nickel 2-10%, tungsten 2-10%, copper 11-25%, tin 1-10%, through atomization, process the pre-alloyed powder of making wear-resisting hard carcass;
B) according to weight portion proportioning, be diamond particles: pre-alloyed powder=2-5:95-98, the diamond particles of scheduled volume is mixed to get to mixture one and mixture two with the pre-alloyed powder of sharp carcass and the pre-alloyed powder of wear-resisting hard carcass respectively;
C) mixture one and mixture two are packed in mould, carry out hot pressed sintering and form three layers of carcass, these three layers of carcasses are respectively outer sharp carcass, wear-resisting hard carcass and interior sharp carcass, and wear-resisting hard carcass is located between inside and outside sharp carcass, and these three layers of carcasses form cutter heads;
D) cutter head is welded in steel matrix by high-frequency induction welder.
E) product having welded carries out quality inspection, with the different grain size of diamond particles in cutter head, distinguishes and sprays paint, and stamp corresponding sign.
From the above-mentioned description of this invention, compared to the prior art, the invention has the advantages that: this cutter head adopts sandwich-type structure, between inside and outside sharp carcass, is folded with wear-resisting hard carcass, add the design of triangle pinnacle, the cutter head top edge of a knife, improved the splendid sharpness in cutter head top.Because cutter head is when the grinding operation, the hardness of inside and outside sharp carcass is lower than wear-resisting hard carcass, and the triangle pinnacle edge of a knife can be formed from start to finish on cutter head top like this, keeps from start to finish splendid cutter head self-sharpening and sharpness, and grinding force is strong; In this cutter head, the proportioning of pre-alloyed powder is desirable, has added especially tungsten powder, makes the wearability of cutter head strong, and cutter head performance is more stable, to improving hold and the mechanical performance of carcass, greatly improves.Adopt the design of inside and outside dlc protective layer; effectively protected matrix; make it be not easy to damage; and improved the operating efficiency of diamond bit; because inside and outside dlc protective layer is brazed in respectively on the inside and outside sidewall of matrix; like this matrix is played to reinforcement effect, in stone material grinding operation, can carry out auxiliarily grinding stone material simultaneously.The design of this matrix top end face recess, the connecting portion of cutter head is welded in recess, the welding manner between cutter head and matrix is more firm like this, cutter head in grinding operation, difficult drop-off, the service life of greatly having improved this product.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 be in Fig. 1 along the cutaway view of A-A direction, wherein do not draw outer dlc protective layer.
Fig. 3 is the perspective view of cutter head in the present invention.
The specific embodiment
Embodiment mono-
See figures.1.and.2.An efficient diamond drill, comprises matrix and cutter head 2, and this matrix is steel matrix 1, and its top end face 10 offers for assembling the recess 100 of cutter head 2, and the connecting portion of described cutter head 2 is welded in recess 100, and the degree of depth of this recess 100 is 3mm.
With reference to Fig. 1 and Fig. 3.Described cutter head 2 consists of interior sharp carcass 20, outer sharp carcass 21 and the wear-resisting hard carcass 22 that is located between inside and outside sharp carcass, the thickness of this wear-resisting hard carcass 22 is roughly 1mm, and this inside and outside sharp carcass 20,21 and wear-resisting hard carcass 22 mix rear sinter molding by diamond particles and pre-alloyed powder.Each component that the pre-alloyed powder of described inside and outside sharp carcass 20,21 includes following percentage by weight forms: cobalt 41%, iron 22%, nickel 6%, copper 24%, tin 7%; The pre-alloyed powder of described wear-resisting hard carcass 22 comprises that each component of following percentage by weight forms: cobalt 38%, iron 15%, nickel 8%, tungsten 5%, copper 25%, tin 9%.
With reference to Fig. 3.The top of described inside and outside sharp carcass 20,21 is equipped with an inclined plane, and the inclined plane 200 of this interior sharp carcass 20 and the inclined plane 210 of outer sharp carcass 21 be the symmetrical formation triangle pinnacle edge of a knife centered by wear-resisting hard carcass 22.
With reference to Fig. 1, Fig. 2 and Fig. 3.Described cutter head 2 is provided with four, the outer sharp carcass 21 of each cutter head is provided with two outer channel 211,212 of being separated by and distributing, the length direction of this two outer channel 211,212 is identical with outer sharp carcass 21 short transverses, the interior sharp carcass 20 of each cutter head is provided with an internal channel 201, and the length direction of this internal channel 201 is identical with interior sharp carcass 20 short transverses.The design of this two outer channel 211,212 and internal channel 201, has improved self-sharpening and the sharpness at diamond bit chip removal refrigerating function and cutter head 2 tops.
See figures.1.and.2.Described steel matrix 1 lateral wall also soldering has four outer dlc protective layers 11 of being separated by uniform, and these four outer dlc protective layers 11 are all rectangle, and the ratio of its length is 40:8:0.1; Described steel matrix 1 madial wall also soldering has four interior dlc protective layers 12 of being separated by uniform, and these four interior dlc protective layers 12 are also all rectangle, and the ratio of its length is 10:8:0.1.The design of this inside and outside dlc protective layer 12,11, forms reinforcement protection to the inside and outside sidewall of steel matrix 1, and steel matrix 1 is not easy to damage, and in stone material grinding operation, can carry out auxiliarily grinding stone material simultaneously.On the sidewall of described steel matrix 1, offer a plurality of bar-shaped troughs 13, the plurality of bar shaped tank 13 is arranged on steel matrix 1 lateral wall obliquely, and its distribution of being separated by, the incline direction of the plurality of bar-shaped trough 13 is consistent with the direction of rotation of diamond bit, convenient like this row's stone fragment.
The production technology of this efficient diamond drill, it comprises the following steps:
A) according to the percentage by weight configuration of cobalt 41%, iron 22%, nickel 6%, copper 24%, tin 7%, through atomization, process the pre-alloyed powder of making sharp carcass; The pre-alloyed powder of making wear-resisting hard carcass is processed in percentage by weight configuration according to cobalt 38%, iron 15%, nickel 8%, tungsten 5%, copper 25%, tin 9% through atomization.
B) according to weight portion proportioning, be diamond particles: pre-alloyed powder=4:96, the diamond particles of scheduled volume is mixed to get to mixture one and mixture two with the pre-alloyed powder of sharp carcass and the pre-alloyed powder of wear-resisting hard carcass respectively.
C) mixture one and mixture two are packed in mould, carry out hot pressed sintering and form three layers of carcass, these three layers of carcasses are respectively outer sharp carcass 21, wear-resisting hard carcass 22 and interior sharp carcass 20, and wear-resisting hard carcass 22 is located between inside and outside sharp carcass, these three layers of carcasses form cutter head 2.
D) the top end face 10 of steel matrix 1 is offered equally spacedly to four recesses 100 that the degree of depth is 3mm, then the connecting portion of four cutter heads 2 is welded in four recesses 100 accordingly by high-frequency induction welder.
E) product having welded carries out quality inspection, with the different grain size of diamond particles in cutter head, distinguishes and sprays paint, and stamp corresponding sign.
Embodiment bis-
The embodiment of the present embodiment and embodiment mono-is basic identical, and difference is through atomization, to process according to the percentage by weight configuration of cobalt 39%, iron 20%, nickel 8%, copper 25%, tin 8% pre-alloyed powder of making sharp carcass; The pre-alloyed powder of making wear-resisting hard carcass is processed in percentage by weight configuration according to cobalt 36%, iron 17%, nickel 10%, tungsten 9%, copper 20%, tin 8% through atomization; According to weight portion proportioning, be diamond particles: pre-alloyed powder=3:97.
Embodiment tri-
The embodiment of the present embodiment and embodiment mono-is basic identical, and difference is through atomization, to process according to the percentage by weight configuration of cobalt 40%, iron 18%, nickel 10%, copper 26%, tin 6% pre-alloyed powder of making sharp carcass; The pre-alloyed powder of making wear-resisting hard carcass is processed in percentage by weight configuration according to cobalt 40%, iron 14%, nickel 8%, tungsten 6%, copper 23%, tin 9% through atomization; According to weight portion proportioning, be diamond particles: pre-alloyed powder=5:95.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading protection domain of the present invention.
Claims (5)
1. an efficient diamond drill, comprise matrix and be fixedly arranged on the cutter head on matrix, it is characterized in that: this cutter head consists of interior sharp carcass, outer sharp carcass and the wear-resisting hard carcass that is located between inside and outside sharp carcass sinter molding after this inside and outside sharp carcass and wear-resisting hard carcass mix by diamond particles and pre-alloyed powder;
Each component that the pre-alloyed powder of described inside and outside sharp carcass includes following percentage by weight forms: cobalt 30-50%, iron 7-22%, nickel 4-12%, copper 13-27%, tin 3-12%;
The pre-alloyed powder of described wear-resisting hard carcass comprises that each component of following percentage by weight forms: cobalt 30-50%, iron 5-20%, nickel 2-10%, tungsten 2-10%, copper 11-25%, tin 1-10%; Described cutter head is provided with four, the outer sharp carcass of each cutter head is provided with two outer channel of being separated by and distributing, the length direction of this two outer channel is identical with outer sharp carcass short transverse, the interior sharp carcass of each cutter head is provided with an internal channel, and the length direction of this internal channel is identical with interior sharp carcass short transverse.
2. a kind of efficient diamond drill as claimed in claim 1, it is characterized in that: the top of described inside and outside sharp carcass is equipped with an inclined plane, the inclined plane of this interior sharp carcass and the inclined plane of outer sharp carcass be the symmetrical formation triangle pinnacle edge of a knife centered by wear-resisting hard carcass.
3. a kind of efficient diamond drill as claimed in claim 1, it is characterized in that: described matrix lateral wall also soldering has four the uniform outer dlc protective layers of being separated by, these four outer dlc protective layers are all rectangle, and the ratio of its length is 40:8:0.1; Described matrix madial wall is also welded with four the uniform interior dlc protective layers of being separated by, and these four interior dlc protective layers are also all rectangle, and the ratio of its length is 10:8:0.1.
4. a kind of efficient diamond drill as claimed in claim 1, is characterized in that: the top end face of described matrix offers for assembling the recess of cutter head, and the connecting portion of described cutter head is welded in recess.
5. a kind of efficient diamond drill as claimed in claim 4, is characterized in that: the degree of depth of described recess is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110446959.4A CN102528942B (en) | 2011-12-28 | 2011-12-28 | High-efficiency diamond bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110446959.4A CN102528942B (en) | 2011-12-28 | 2011-12-28 | High-efficiency diamond bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102528942A CN102528942A (en) | 2012-07-04 |
| CN102528942B true CN102528942B (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110446959.4A Expired - Fee Related CN102528942B (en) | 2011-12-28 | 2011-12-28 | High-efficiency diamond bit |
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| CN102267190A (en) * | 2011-07-12 | 2011-12-07 | 山东日能超硬材料有限公司 | Segmented compound super-hard cutter bit and manufacturing method thereof |
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| JP3648205B2 (en) * | 2001-03-23 | 2005-05-18 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Oil drilling tricone bit insert chip, manufacturing method thereof, and oil digging tricon bit |
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| US3878905A (en) * | 1972-04-07 | 1975-04-22 | Hawera Probst Kg Hartmetall | Drill, especially rock drill |
| CN1300653A (en) * | 2000-12-08 | 2001-06-27 | 张绍和 | Dual-cutting diamond bit |
| CN201291517Y (en) * | 2008-11-21 | 2009-08-19 | 安泰科技股份有限公司 | Diamond head |
| CN101748972A (en) * | 2009-12-30 | 2010-06-23 | 龚宏伟 | Diamond bit and manufacturing method thereof |
| CN102001056A (en) * | 2010-09-27 | 2011-04-06 | 安泰科技股份有限公司 | Brazing-hot pressing diamond tool and manufacturing method thereof |
| CN102151904A (en) * | 2011-05-06 | 2011-08-17 | 福建万龙金刚石工具有限公司 | Diamond saw blade tool bit and production process thereof |
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| Publication number | Publication date |
|---|---|
| CN102528942A (en) | 2012-07-04 |
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