CN102151881B - Preparation method of throw-away drill and throw-away drill - Google Patents
Preparation method of throw-away drill and throw-away drill Download PDFInfo
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- CN102151881B CN102151881B CN201110103509.5A CN201110103509A CN102151881B CN 102151881 B CN102151881 B CN 102151881B CN 201110103509 A CN201110103509 A CN 201110103509A CN 102151881 B CN102151881 B CN 102151881B
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- locking hole
- groove
- locating
- brill
- cutting tip
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 45
- 238000005553 drilling Methods 0.000 claims description 31
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Abstract
The invention discloses a preparation method of a throw-away drill, which comprises the following steps of: (1) preparing a drill body, transversely arranging a groove at the middle part of the cutting end of the drill body, and arranging a positioning hole on the bottom of the groove, wherein the positioning hole is located on the central axis of the drill body; (2) preparing a cutting blade which comprises a cutting blade body and a positioning column arranged on the bottom of the cutting blade body, wherein the cutting blade body can be inserted into the groove and in tight fit with the groove, and the positioning column is matched with the positioning hole; (3) inserting the cutting blade into the groove, and fixing the cutting blade body on the drill body through improvement of structures of the positioning column and the drill body so that a locking hole used for fixing and arranged on the cutting blade body is dispensed, and further the height of the cutting blade body can be reduced, the helical angle of a chip removing groove arranged on the cutting blade body is increased, and the chip removing capacity is improved. The invention also discloses a throw-away drill.
Description
Technical field
The present invention relates to drill bit, particularly the preparation method of Disposable drilling bit and a kind of Disposable drilling bit obtained by this method.
Background technology
In prior art, conventional drill bit is all generally integrally manufactured forming, and cutting edge and brill body are connected as a single entity, after cutting edge weares and teares at work, in the use of refacing.Reface and can only grind some simple brill types because drill bit is manual, make some good more complicated brill types be difficult to promote, and the drill bit left and right of generally just refacing 10 times, remaining is just out of use, thereby has caused the waste of material and money.
At present, there is the Disposable drilling bit of some replaceable cutwork portions for this situation, this drill bit comprises the cutting tip on the cutting end of boring body and being fixed on this brill body, this cutting tip adopts high-performance cutter material to make, boring body adopts common iron to make, thereby save the use of high-quality steel, reduce cost, and use certain hour at drill bit, cutting tip occurs after wearing and tearing, can also keep by changing cutting tip the service behaviour of drill bit, compare traditional drill bit, extend the service life of drill bit, reduce the waste of money.
But still there is larger problem in such Disposable drilling bit, owing to will offering the locking hole of fixing use on cutting tip, so the height of cutting tip can not be too little, thereby cause the helical angle of being located at the chip area on this cutting tip can not accomplish at utmost, the helical angle of this chip area is identical with the angle of the helical angle of brill body, thereby has affected the chip removal performance of drill bit.And the bottom operated by rotary motion of cutting tip is orthogonal, the groove of accommodating this cutting tip arranging in the cutting end of boring body is also rectangle, and in the time that drill bit work is stressed, cutting tip is easy to occur rocking, and affects serviceability.
Summary of the invention
The object of the invention is to, a kind of preparation method of Disposable drilling bit is provided, by the prepared Disposable drilling bit of the method, the helical angle of its chip area can be set very large, compare common Disposable drilling bit, there is better chip removal performance, and the bottom of cutting tip body is made as to inclined-plane, the bottom portion of groove boring is with it made as to the inclined-plane matching with the bottom of this cutting tip body, strengthen the intensity being connected and fixed, make drill bit in the time that work is stressed, rocking need not appear in cutting tip, keeps good service behaviour.
The present invention also aims to provide a kind of Disposable drilling bit.
The technical scheme that the present invention adopted is for achieving the above object:
A preparation method for Disposable drilling bit, it comprises the following steps:
(1) prepare a brill body, be horizontally set with a groove in the centre position of this brill body cutting end, be provided with a locating hole in the bottom of this groove, this locating hole is positioned on the axis of boring body;
(2) prepare a cutting tip, this cutting tip comprises a bite body and the locating dowel that is arranged at this bite body bottom, and this this physical efficiency of bite is inserted in described groove and closely cooperated, and this locating dowel matches with described locating hole;
(3) described cutting tip is planted in this groove, by carrying out structural improvement with it bite body be fixed to it this brill with boring in this locating dowel, avoided arranging the locking hole of fixing use on bite body, thereby the height of bite body can be shortened, increase the helical angle of being located at the chip area on this bite body, strengthen chip removal ability.
As a further improvement on the present invention, described step (3) comprises the following steps:
(31) be horizontally set with a locking hole near cutting end place with it in described brill, this locking hole departs from and bores the axis of body and occur simultaneously mutually with described locating hole;
(32) in the locating dowel of described cutting tip, be horizontally set with certain position groove, the cross section of this locating slot is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, in the time that described locating dowel is inserted locating hole, this locating slot is towards described locking hole, and this arcwall face is merged into a complete circle mutually with the internal face of this locking hole;
(33) described bite body is snapped in described groove, now this locating dowel is inserted in locating hole, this locating slot matches with locking hole, insert a screw and this cutting tip is fixed to the cutting end of boring body, form Disposable drilling bit, in the time that cutting tip damages, can keep by changing cutting tip the works fine performance of drill bit.
As a further improvement on the present invention, the bottom surface of described groove is an inclined-plane, and the bottom of described bite body is an inclined-plane matching with the bottom surface of this groove.
As a further improvement on the present invention, this brill is provided with two spiral helicine chip areas with it around axis, and the two ends of described groove extend on these two chip areas; This bite body is provided with the chip area with described brill chip area same-handed angle with it.
The prepared Disposable drilling bit of a kind of preparation method by aforementioned Disposable drilling bit, it comprises a brill body and one and the cutting tip that is used in conjunction with of this brill body, the centre position of this brill body cutting end has been horizontally set with a groove, be provided with a locating hole in the bottom of this groove, described cutting tip comprises that a bite body and is arranged at the locating dowel of this bite body bottom, this bite inserted by main body is in described groove, this locating dowel is inserted in this locating hole, be horizontally set with a locking hole near cutting end place with it in described brill, this locking hole departs from and bores the axis of body and occur simultaneously mutually with described locating hole, be provided with a locating slot matching with this locking hole in described locating dowel top rail, one screw for puncturing is fixed on this cutting tip with it brill in this locking hole.
As a further improvement on the present invention, the cross section of described locating slot is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, in the time that described locating dowel is inserted locating hole, this locating slot is towards described locking hole, and this arcwall face is merged into a complete circle mutually with the internal face of this locking hole.
As a further improvement on the present invention, the bottom surface of described groove is an inclined-plane, and the bottom of described bite body is an inclined-plane matching with the bottom surface of this groove.
As a further improvement on the present invention, this brill is provided with two spiral helicine chip areas with it around axis, and the two ends of described groove extend on these two chip areas; This bite body is provided with the chip area with described brill chip area same-handed angle with it.
As a further improvement on the present invention, described screw is formed in one, it comprises the head, threaded shank and the polished rod portion that set gradually, this polished rod portion is placed through in the complete circular port that the arcwall face of described locating slot and the internal face of locking hole be merged into mutually, and this threaded shank matches this screw is fixed in locking hole with described locking hole.
Beneficial effect of the present invention is: the inventive method simple possible, by the prepared Disposable drilling bit of the inventive method, owing to not offering the locking hole of fixing use on bite body, by coordinating of locating dowel and locating hole, locating slot, the cooperation of locking hole and screw, cutting tip is fixed to it brill, thereby can be by the reduced height of bite body, the helical angle of the chip area on bite body is increased, compare common Disposable drilling bit, there is better chip removal performance, and the bottom of cutting tip body is made as to inclined-plane, the bottom portion of groove boring is with it made as to the inclined-plane matching with the bottom of this cutting tip body, strengthen the intensity being connected and fixed, make drill bit in the time that work is stressed, rocking need not appear in cutting tip, keep good service behaviour.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Brief description of the drawings
Fig. 1 is structural representation Fig. 1 of the present invention;
Fig. 2 is structural representation Fig. 2 of the present invention;
Fig. 3 is structural representation Fig. 3 of the present invention;
Fig. 4 is the structural representation that bores body in Fig. 1;
Fig. 5 is structural representation Fig. 1 of cutting tip in Fig. 1;
Fig. 6 is structural representation Fig. 2 of cutting tip in Fig. 1;
Fig. 7 is the structural representation of screw in Fig. 1.
Detailed description of the invention
Embodiment: see Fig. 1 to Fig. 7, the preparation method of a kind of Disposable drilling bit of the present invention, it comprises the following steps:
(1) prepare a brill body 1, be horizontally set with a groove 11 in the centre position of this brill body 1 cutting end, be provided with a locating hole 12 in the bottom of this groove 11, this locating hole 12 is positioned on the axis of boring body 1;
(2) prepare a cutting tip 2, this cutting tip 2 comprises a bite body 21 and is arranged at the locating dowel 22 of these bite body 21 bottoms, this bite body 21 can insert in described groove 11 and closely cooperate, and this locating dowel 22 matches with described locating hole 12;
(3) described cutting tip 2 is planted in this groove 11, bite body 21 is fixed on this brill body 1 by carry out structural improvement on this locating dowel 22 and brill body 1, avoided arranging the locking hole of fixing use on bite body 21, thereby the height of bite body 21 can be shortened, increase the helical angle of being located at the chip area 24 on this bite body 21, strengthen chip removal ability.
Described step (3) comprises the following steps:
(31) on described brill body 1, be horizontally set with a locking hole 13 near cutting end place, this locking hole 13 departs from and bores the axis of body 1 and occur simultaneously mutually with described locating hole 12;
(32) in the locating dowel 22 of described cutting tip 2, be horizontally set with certain position groove 23, the cross section of this locating slot 23 is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole 13, in the time that described locating dowel 22 is inserted locating hole 12, this locating slot 23 is towards described locking hole 13, and this arcwall face is merged into a complete circular port mutually with the internal face of this locking hole 13;
(33) described bite body 21 is snapped in described groove 11, now this locating dowel 22 is inserted in locating hole 12, this locating slot 23 matches with locking hole 13, insert a screw 3 and this cutting tip 2 is fixed to the cutting end of boring body 1, form Disposable drilling bit, in the time that cutting tip 2 damages, can keep by changing cutting tip 2 the works fine performance of drill bit.
The bottom surface of described groove 11 is an inclined-plane, and the bottom of described bite body 21 is an inclined-plane matching with the bottom surface of this groove 11.
On this brill body 1, be provided with two spiral helicine chip areas 14 around axis, the two ends of described groove 11 extend on these two chip areas 14; This bite body 21 be provided with described brill body 1 on the chip area 24 at chip area 14 same-handed angles.
The prepared Disposable drilling bit of a kind of preparation method by aforementioned Disposable drilling bit, it comprises a brill body 1 and one and the cutting tip 2 that is used in conjunction with of this brill body 1, the centre position of this brill body 1 cutting end has been horizontally set with a groove 11, be provided with a locating hole 12 in the bottom of this groove 11, described cutting tip 2 comprises that a bite body 21 and is arranged at the locating dowel 22 of these bite body 21 bottoms, this bite body 21 is inserted in described groove 11, this locating dowel 22 is inserted in this locating hole 12, on described brill body 1, be horizontally set with a locking hole 13 near cutting end place, this locking hole 13 departs from and bores the axis of body 1 and occur simultaneously mutually with described locating hole 12, be provided with a locating slot 23 matching with this locking hole 13 in described locating dowel 22 top rails, one screw 3 is placed through in this locking hole 13 and this cutting tip 2 is fixed on and bores on body 1.
The cross section of described locating slot 23 is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole 13, in the time that described locating dowel 22 is inserted locating hole 12, this locating slot 23 is towards described locking hole 13, and this arcwall face is merged into a complete circular port mutually with the internal face of this locking hole 13.
The bottom surface of described groove 11 is an inclined-plane, and the bottom of described bite body 21 is an inclined-plane matching with the bottom surface of this groove 11.
On this brill body 1, be provided with two spiral helicine chip areas 14 around axis, the two ends of described groove 11 extend on these two chip areas 14; This bite body 21 be provided with described brill body 1 on the chip area 24 at chip area 14 same-handed angles.
Described screw 3 is formed in one, it comprises the head 31, threaded shank 32 and the polished rod portion 33 that set gradually, in the complete circular port that the arcwall face that this polished rod portion 33 is placed through described locating slot 23 and the internal face of locking hole 13 are merged into mutually, this threaded shank 32 matches this screw 3 is fixed in locking hole 13 with described locking hole 13.
While using product of the present invention, corresponding this cutting tip 2 body 1 that bores is inserted, bite body 21 is inserted in described groove 11, this locating dowel 22 is inserted in this locating hole 12, now locating slot 23 is towards described locking hole 13, and this arcwall face is merged into a complete circular port mutually with the internal face of this locking hole 13.Described screw 3 is inserted in this locking hole 13, and polished rod portion 33 is placed in the arcwall face of locating slot 23 and the internal face of locking hole 13 merges in formed circular port mutually, thereby this cutting tip 2 is fixed to and is bored on body 1.Owing to not offering the locking hole 13 of fixing use on bite body 21, thereby can be by the reduced height of bite body 21, the helical angle of the chip area on bite body 21 24 is increased, compare common Disposable drilling bit, there is better chip removal performance, and the bottom of cutting tip 2 bodies is made as to inclined-plane, groove 11 bottoms of boring on body 1 are made as to the inclined-plane matching with the bottom of this cutting tip 2 bodies, strengthen the intensity being connected and fixed, make drill bit in the time that work is stressed, rocking need not appear in cutting tip 2, keeps good service behaviour.
As described in the present embodiment of the invention, with preparation method and the Disposable drilling bit of other Disposable drilling bits of the same or similar structure of the present invention, all in protection domain of the present invention.
Claims (6)
1. a preparation method for Disposable drilling bit, is characterized in that: it comprises the following steps:
(1) prepare a brill body, be horizontally set with a groove in the centre position of this brill body cutting end, be provided with a locating hole in the bottom of this groove, this locating hole is positioned on the axis of boring body;
(2) prepare a cutting tip, this cutting tip comprises a bite body and the locating dowel that is arranged at this bite body bottom, and this this physical efficiency of bite is inserted in described groove and closely cooperated, and this locating dowel matches with described locating hole;
(3) described cutting tip is planted in this groove, by carrying out structural improvement with it bite body be fixed to it this brill with boring in this locating dowel, avoided arranging the locking hole of fixing use on bite body, thereby the height of bite body can be shortened, increase the helical angle of being located at the chip area on this bite body, strengthen chip removal ability;
Described step (3) comprises the following steps:
(31) be horizontally set with a locking hole near cutting end place with it in described brill, this locking hole departs from and bores the axis of body and occur simultaneously mutually with described locating hole;
(32) in the locating dowel of described cutting tip, be horizontally set with certain position groove, the cross section of this locating slot is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, in the time that described locating dowel is inserted locating hole, this locating slot is towards described locking hole, and this arcwall face is merged into a complete circular port mutually with the internal face of this locking hole;
(33) described bite body is snapped in described groove, now this locating dowel is inserted in locating hole, this locating slot matches with locking hole, insert a screw and this cutting tip is fixed to the cutting end of boring body, described screw is formed in one, it comprises the head setting gradually, threaded shank and polished rod portion, described polished rod portion has tapering, and the thin rear end of front end is thick, this polished rod portion is placed through in the complete circular port that the arcwall face of described locating slot and the internal face of locking hole be merged into mutually, this threaded shank matches this screw is fixed in locking hole with described locking hole, form Disposable drilling bit, in the time that damaging, cutting tip can keep by changing cutting tip the works fine performance of drill bit.
2. the preparation method of Disposable drilling bit according to claim 1, is characterized in that, the bottom surface of described groove is an inclined-plane, and the bottom of described bite body is an inclined-plane matching with the bottom surface of this groove.
3. the preparation method of Disposable drilling bit according to claim 1, is characterized in that, this brill is provided with two spiral helicine chip areas with it around axis, and the two ends of described groove extend on these two chip areas; This bite body is provided with the chip area with described brill chip area same-handed angle with it.
4. the prepared Disposable drilling bit of the preparation method by Disposable drilling bit described in claim 1, it is characterized in that: it comprises a brill body and one and the cutting tip that is used in conjunction with of this brill body, the centre position of this brill body cutting end has been horizontally set with a groove, be provided with a locating hole in the bottom of this groove, described cutting tip comprises that a bite body and is arranged at the locating dowel of this bite body bottom, this bite inserted by main body is in described groove, this locating dowel is inserted in this locating hole, be horizontally set with a locking hole near cutting end place with it in described brill, this locking hole departs from and bores the axis of body and occur simultaneously mutually with described locating hole, be provided with a locating slot matching with this locking hole in described locating dowel top rail, one screw for puncturing is fixed on this cutting tip with it brill in this locking hole, the cross section of described locating slot is arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, in the time that described locating dowel is inserted locating hole, this locating slot is towards described locking hole, and this arcwall face is merged into a complete circular port mutually with the internal face of this locking hole, described screw is formed in one, it comprises the head, threaded shank and the polished rod portion that set gradually, described polished rod portion has tapering, and the thin rear end of front end is thick, this polished rod portion is placed through in the complete circular port that the arcwall face of described locating slot and the internal face of locking hole be merged into mutually, and this threaded shank matches this screw is fixed in locking hole with described locking hole.
5. Disposable drilling bit according to claim 4, is characterized in that, the bottom surface of described groove is an inclined-plane, and the bottom of described bite body is an inclined-plane matching with the bottom surface of this groove.
6. Disposable drilling bit according to claim 5, is characterized in that, this brill is provided with two spiral helicine chip areas with it around axis, and the two ends of described groove extend on these two chip areas; This bite body is provided with the chip area with described brill chip area same-handed angle with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110103509.5A CN102151881B (en) | 2011-04-25 | 2011-04-25 | Preparation method of throw-away drill and throw-away drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110103509.5A CN102151881B (en) | 2011-04-25 | 2011-04-25 | Preparation method of throw-away drill and throw-away drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102151881A CN102151881A (en) | 2011-08-17 |
| CN102151881B true CN102151881B (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110103509.5A Expired - Fee Related CN102151881B (en) | 2011-04-25 | 2011-04-25 | Preparation method of throw-away drill and throw-away drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102151881B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896479A (en) * | 2012-09-17 | 2013-01-30 | 苏茂均 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
| CN112388035B (en) * | 2020-11-05 | 2022-07-01 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5746549A (en) * | 1993-06-21 | 1998-05-05 | Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg | Metal cutting tool |
| CN101035642A (en) * | 2004-10-05 | 2007-09-12 | 山高刀具公司 | A tool with a non-circular connecting end |
| CN101502927A (en) * | 2008-12-31 | 2009-08-12 | 东莞市微创工具科技有限公司 | Method for preparing grinding-free drill head and drill head |
| CN201394663Y (en) * | 2009-04-07 | 2010-02-03 | 张新添 | Center drill cutter |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2922847B2 (en) * | 1996-06-05 | 1999-07-26 | 株式会社ミヤナガ | Stopper for multi-stage bit |
| KR20020074778A (en) * | 2001-03-22 | 2002-10-04 | 이정수 | Insert drill |
| US7114893B2 (en) * | 2001-03-27 | 2006-10-03 | Allied Machine & Engineering Corp. | Drill insert geometry having V-notched web |
| JP4565770B2 (en) * | 2001-04-26 | 2010-10-20 | 京セラ株式会社 | Throw-away drill |
| DE10207257B4 (en) * | 2002-02-21 | 2021-02-18 | Kennametal Inc. | Rotary cutting tool with exchangeable cutting insert |
| DE10220023A1 (en) * | 2002-05-04 | 2003-11-20 | Tts Tooltechnic Systems Ag | drill |
| EP1533061A1 (en) * | 2003-11-11 | 2005-05-25 | Yestool Co., Ltd. | Structure for securing insert to insert drill |
| SE533855C2 (en) * | 2009-06-23 | 2011-02-08 | Sandvik Intellectual Property | Rotatable tool for chip separating machining as well as loose stop and basic body for this |
| CN201572889U (en) * | 2009-12-23 | 2010-09-08 | 中国第一汽车集团公司 | Graphite rotor ring type trisection semi-circular key seal clamping structure |
-
2011
- 2011-04-25 CN CN201110103509.5A patent/CN102151881B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5746549A (en) * | 1993-06-21 | 1998-05-05 | Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg | Metal cutting tool |
| CN101035642A (en) * | 2004-10-05 | 2007-09-12 | 山高刀具公司 | A tool with a non-circular connecting end |
| CN101502927A (en) * | 2008-12-31 | 2009-08-12 | 东莞市微创工具科技有限公司 | Method for preparing grinding-free drill head and drill head |
| CN201394663Y (en) * | 2009-04-07 | 2010-02-03 | 张新添 | Center drill cutter |
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|---|---|
| CN102151881A (en) | 2011-08-17 |
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