CN102151881A - 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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- CN102151881A CN102151881A CN2011101035095A CN201110103509A CN102151881A CN 102151881 A CN102151881 A CN 102151881A CN 2011101035095 A CN2011101035095 A CN 2011101035095A CN 201110103509 A CN201110103509 A CN 201110103509A CN 102151881 A CN102151881 A CN 102151881A
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- locking hole
- groove
- drill bit
- bite
- brill
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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 type drill bit and a kind of disposable type drill bit obtained by this method.
Background technology
In the prior art, drill bit commonly used generally all is 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.Because manual the refacing of drill bit can only be ground some simple brill types, make some good complicated brill types be difficult to promote, and drill bit generally just reface about 10 times, remaining just is out of use, thereby has caused the waste of material and money.
At present, the disposable type drill bit that has occurred some replaceable cutwork portions at this situation, this drill bit comprises the cutting tip on the cutting end of boring body and being fixed in this brill body, this cutting tip adopts the high-performance cutter material to make, the brill body adopts common iron to make and gets final product, thereby saved the use of high-quality steel, reduced cost, and use certain hour at drill bit, after wearing and tearing appear in cutting tip, can also compare traditional drill bit by changing the service behaviour that cutting tip keeps drill bit, prolong the service life of drill bit, reduced the waste of money.
But still there is bigger problem in such disposable type drill bit, owing to will offer the fixedly locking hole of usefulness on the cutting tip, so the height of cutting tip can not be too little, thereby the helical angle that has caused being located at the chip area on this cutting tip can not be accomplished at utmost, the helical angle of this chip area is identical with the angle of the helical angle of boring body, thereby has influenced the chip removal performance of drill bit.And the bottom of cutting tip is typically provided to rectangle, and the groove of ccontaining this cutting tip that is provided with in the cutting end of boring body also is a rectangle, and when drill bit work was stressed, cutting tip was easy to occur rocking, and influences serviceability.
Summary of the invention
The objective of the invention is to, a kind of preparation method of disposable type drill bit is provided, by the prepared disposable type drill bit of this method, the helical angle of its chip area can be set very big, compare common disposable type drill bit, has better chip removal performance, and the bottom of cutting tip body is made as the inclined-plane, the bottom portion of groove that bores on one's body is made as the inclined-plane that matches with the bottom of this cutting tip body, strengthened the intensity that is connected and fixed, make drill bit when work is stressed, rocking need not appear in cutting tip, keeps good working performance.
The present invention also aims to provide a kind of disposable type drill bit.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of preparation method of disposable type drill bit, it may further comprise the steps:
(1) body is bored in preparation one, is horizontally set with a groove in the centre position of this brill body cutting end, is provided with a locating hole in the bottom of this groove, and this locating hole is positioned on the axis of boring body;
(2) preparation one cutting tip, this cutting tip comprise a bite body and the reference column that is arranged at this bite body bottom, and this this physical efficiency of bite is inserted in the described groove and closely cooperated, and this reference column matches with described locating hole;
(3) described cutting tip is planted in this groove, by carry out structural improvement on one's body the bite body be fixed on one's body this brill with boring at this reference column, avoided on the bite body, being provided with the fixedly locking hole of usefulness, 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 the chip removal ability.
As a further improvement on the present invention, described step (3) may further comprise the steps:
(31) be horizontally set with a locking hole near cutting end place on one's body in described brill, this locking hole departs from the axis of boring body and occurs simultaneously mutually with described locating hole;
(32) on the reference column of described cutting tip, be horizontally set with a locating slot, the cross section of this locating slot is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, when described reference column inserts 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 the described groove, this moment, this reference column was inserted in the 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 the disposable type drill bit, can be when cutting tip damages by changing the works fine performance that cutting tip keeps 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 that matches 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 on one's body around the 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 on one's body.
The prepared disposable type drill bit of a kind of preparation method by aforementioned disposable type drill bit, it comprises that one bores body and one and the cutting tip that is used 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 reference column of this bite body bottom, this bite inserted by main body is in described groove, this reference column is inserted in this locating hole, be horizontally set with a locking hole near the place, cutting end on one's body in described brill, this locking hole departs from the axis of boring body and occurs simultaneously mutually with described locating hole, be horizontally set with a locating slot that matches with this locking hole on described reference column, a screw is placed through in this locking hole this cutting tip is fixed on one's body the brill.
As a further improvement on the present invention, the cross section of described locating slot is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, when described reference column inserts 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 that matches 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 on one's body around the 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 on one's body.
As a further improvement on the present invention, described screw is formed in one, it comprises head, threaded shank and the polished rod portion that sets gradually, in the arcwall face that this polished rod portion is placed through described locating slot and the complete circular port that the internal face of locking hole is merged into mutually, this threaded shank matches with described locking hole this screw is fixed in the locking hole.
Beneficial effect of the present invention is: the inventive method simple possible, by the prepared disposable type drill bit of the inventive method, owing on the bite body, do not offer the fixedly locking hole of usefulness, by cooperating of reference column and locating hole, locating slot, the cooperation of locking hole and screw, cutting tip is fixed on one's body the brill, thereby can be with the reduced height of bite body, the helical angle of the chip area on the bite body is increased, compare common disposable type drill bit, have better chip removal performance, and the bottom of cutting tip body is made as the inclined-plane, the bottom portion of groove that bores on one's body is made as the inclined-plane that matches with the bottom of this cutting tip body, strengthened the intensity that is connected and fixed, make drill bit when work is stressed, rocking need not appear in cutting tip, keeps good working performance.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Description of 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 among Fig. 1;
Fig. 5 is structural representation Fig. 1 of cutting tip among Fig. 1;
Fig. 6 is structural representation Fig. 2 of cutting tip among Fig. 1;
Fig. 7 is the structural representation of screw among Fig. 1.
The specific embodiment
Embodiment: see Fig. 1 to Fig. 7, the preparation method of a kind of disposable type drill bit of the present invention, it may further comprise the steps:
(1) body 1 is bored in preparation one, is horizontally set with a groove 11 in the centre position of this brill body 1 cutting end, is provided with a locating hole 12 in the bottom of this groove 11, and this locating hole 12 is positioned on the axis of boring body 1;
(2) preparation one cutting tip 2, this cutting tip 2 comprises a bite body 21 and is arranged at the reference column 22 of these bite body 21 bottoms, this bite body 21 can insert in the described groove 11 and closely cooperate, and this reference column 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 on this reference column 22 and brill body 1, carrying out structural improvement, avoided on bite body 21, being provided with the fixedly locking hole of usefulness, 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 the chip removal ability.
Described step (3) may further comprise the steps:
(31) be horizontally set with a locking hole 13 near cutting end place on described brill body 1, this locking hole 13 departs from the axis of boring body 1 and occurs simultaneously mutually with described locating hole 12;
(32) on the reference column 22 of described cutting tip 2, be horizontally set with a locating slot 23, the cross section of this locating slot 23 is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole 13, when described reference column 22 inserts 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 the described groove 11, this moment, this reference column 22 was inserted in the 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 the disposable type drill bit, can be when cutting tip 2 damages by changing the works fine performance that cutting tip 2 keeps 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 that matches with the bottom surface of this groove 11.
Be provided with two spiral helicine chip areas 14 around the axis on this brill body 1, 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 type drill bit of a kind of preparation method by aforementioned disposable type drill bit, it comprises that one bores body 1 and one and the cutting tip 2 that is used 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 reference column 22 of these bite body 21 bottoms, this bite body 21 is inserted in the described groove 11, this reference column 22 is inserted in this locating hole 12, on described brill body 1, be horizontally set with a locking hole 13 near the place, cutting end, this locking hole 13 departs from the axis of boring body 1 and occurs simultaneously mutually with described locating hole 12, be placed through in this locking hole 13 this cutting tip 2 is fixed in and bore on the body 1 in being horizontally set with locating slot 23, one screws 3 that match with this locking hole 13 on the described reference column 22.
The cross section of described locating slot 23 is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole 13, when described reference column 22 inserted locating hole 12, this locating slot 23 was 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 that matches with the bottom surface of this groove 11.
Be provided with two spiral helicine chip areas 14 around the axis on this brill body 1, 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 head 31, threaded shank 32 and the polished rod portion 33 that sets gradually, in the arcwall face that this polished rod portion 33 is placed through described locating slot 23 and the complete circular port that the internal face of locking hole 13 is merged into mutually, this threaded shank 32 matches with described locking hole 13 this screw 3 is fixed in the locking hole 13.
When using product of the present invention, these cutting tip 2 corresponding bodies 1 that bore are inserted, bite body 21 is inserted in the described groove 11, this reference column 22 is inserted in this locating hole 12, locating slot 23 is towards described locking hole 13 at this moment, 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 the arcwall face that polished rod portion 33 is placed in locating slot 23 merges in the formed circular port mutually with the internal face of locking hole 13, thereby this cutting tip 2 is fixed on the brill body 1.Owing on bite body 21, do not offer the fixedly locking hole 13 of usefulness, thereby can be with the reduced height of bite body 21, the helical angle of the chip area on the bite body 21 24 is increased, compare common disposable type drill bit, has better chip removal performance, and the bottom of cutting tip 2 bodies is made as the inclined-plane, groove 11 bottoms of boring on the body 1 are made as the inclined-plane that matches with the bottom of this cutting tip 2 bodies, strengthened the intensity that is connected and fixed, make drill bit when work is stressed, rocking need not appear in cutting tip 2, keeps good working performance.
As described in the embodiment of the invention, with the preparation method and the disposable type drill bit of other disposable type drill bits of the same or similar structure of the present invention, all in protection domain of the present invention.
Claims (9)
1. the preparation method of a disposable type drill bit, it is characterized in that: it may further comprise the steps:
(1) body is bored in preparation one, is horizontally set with a groove in the centre position of this brill body cutting end, is provided with a locating hole in the bottom of this groove, and this locating hole is positioned on the axis of boring body;
(2) preparation one cutting tip, this cutting tip comprise a bite body and the reference column that is arranged at this bite body bottom, and this this physical efficiency of bite is inserted in the described groove and closely cooperated, and this reference column matches with described locating hole;
(3) described cutting tip is planted in this groove, by carry out structural improvement on one's body the bite body be fixed on one's body this brill with boring at this reference column, avoided on the bite body, being provided with the fixedly locking hole of usefulness, 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 the chip removal ability.
2. the preparation method of a disposable type drill bit is characterized in that, described step (3) may further comprise the steps:
(31) be horizontally set with a locking hole near cutting end place on one's body in described brill, this locking hole departs from the axis of boring body and occurs simultaneously mutually with described locating hole;
(32) on the reference column of described cutting tip, be horizontally set with a locating slot, the cross section of this locating slot is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, when described reference column inserts 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 the described groove, this moment, this reference column was inserted in the 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 the disposable type drill bit, can be when cutting tip damages by changing the works fine performance that cutting tip keeps drill bit.
3. the preparation method of disposable type drill 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 that matches with the bottom surface of this groove.
4. the preparation method of disposable type drill bit according to claim 1 is characterized in that, this brill is provided with two spiral helicine chip areas on one's body around the 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 on one's body.
5. prepared disposable type drill bit of the preparation method by the described disposable type drill bit of claim 1, it is characterized in that: it comprises that one bores body and one and the cutting tip that is used 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 reference column of this bite body bottom, this bite inserted by main body is in described groove, this reference column is inserted in this locating hole, be horizontally set with a locking hole near the place, cutting end on one's body in described brill, this locking hole departs from the axis of boring body and occurs simultaneously mutually with described locating hole, be horizontally set with a locating slot that matches with this locking hole on described reference column, a screw is placed through in this locking hole this cutting tip is fixed on one's body the brill.
6. disposable type drill bit according to claim 5, it is characterized in that, the cross section of described locating slot is an arcwall face, the radius of this arcwall face is identical with the radius of described locking hole, when described reference column inserts 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.
7. disposable type drill bit according to claim 6 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 that matches with the bottom surface of this groove.
8. disposable type drill bit according to claim 7 is characterized in that, this brill is provided with two spiral helicine chip areas on one's body around the 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 on one's body.
9. disposable type drill bit according to claim 8, it is characterized in that, described screw is formed in one, it comprises head, threaded shank and the polished rod portion that sets gradually, in the arcwall face that this polished rod portion is placed through described locating slot and the complete circular port that the internal face of locking hole is merged into mutually, this threaded shank matches with described locking hole this screw is fixed in the locking hole.
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 true CN102151881A (en) | 2011-08-17 |
| CN102151881B 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) |
Cited By (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 |
| CN112388035A (en) * | 2020-11-05 | 2021-02-23 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
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| KR20020074778A (en) * | 2001-03-22 | 2002-10-04 | 이정수 | Insert drill |
| JP2002326111A (en) * | 2001-04-26 | 2002-11-12 | Kyocera Corp | Throw away type drill |
| EP1358979A2 (en) * | 2002-05-04 | 2003-11-05 | TTS Tooltechnic Systems AG & Co. KG | Drill |
| US20040223823A1 (en) * | 2001-03-27 | 2004-11-11 | Allied Machine & Engineering Corp. | Drill insert geometry having V-notched web |
| US20050084352A1 (en) * | 2002-02-21 | 2005-04-21 | Bernhard Borschert | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
| US20050098359A1 (en) * | 2003-11-11 | 2005-05-12 | Yestool Co., Ltd. | Structure for securing insert to insert drill |
| 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 |
| 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 |
| US20100322723A1 (en) * | 2009-06-23 | 2010-12-23 | Sandvik Intellectual Property Ab | Rotatable tool for chip removing machining as well as a loose top and a basic body therefor |
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2011
- 2011-04-25 CN CN201110103509.5A patent/CN102151881B/en not_active Expired - Fee Related
Patent Citations (13)
| 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 |
| JPH09323209A (en) * | 1996-06-05 | 1997-12-16 | Miyanaga:Kk | Stopper for multi-step bit |
| KR20020074778A (en) * | 2001-03-22 | 2002-10-04 | 이정수 | Insert drill |
| US20040223823A1 (en) * | 2001-03-27 | 2004-11-11 | Allied Machine & Engineering Corp. | Drill insert geometry having V-notched web |
| JP2002326111A (en) * | 2001-04-26 | 2002-11-12 | Kyocera Corp | Throw away type drill |
| US20050084352A1 (en) * | 2002-02-21 | 2005-04-21 | Bernhard Borschert | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
| EP1358979A2 (en) * | 2002-05-04 | 2003-11-05 | TTS Tooltechnic Systems AG & Co. KG | Drill |
| US20050098359A1 (en) * | 2003-11-11 | 2005-05-12 | Yestool Co., Ltd. | Structure for securing insert to insert drill |
| 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 |
| US20100322723A1 (en) * | 2009-06-23 | 2010-12-23 | Sandvik Intellectual Property Ab | Rotatable tool for chip removing machining as well as a loose top and a basic body therefor |
| 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 |
Cited By (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 |
| CN112388035A (en) * | 2020-11-05 | 2021-02-23 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102151881B (en) | 2014-06-18 |
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