CN102896479A - Method for manufacturing drill bit with cutting tool bit replaceable and product thereof - Google Patents
Method for manufacturing drill bit with cutting tool bit replaceable and product thereof Download PDFInfo
- Publication number
- CN102896479A CN102896479A CN2012103444471A CN201210344447A CN102896479A CN 102896479 A CN102896479 A CN 102896479A CN 2012103444471 A CN2012103444471 A CN 2012103444471A CN 201210344447 A CN201210344447 A CN 201210344447A CN 102896479 A CN102896479 A CN 102896479A
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- groove
- cutter tip
- operate portions
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- drill bit
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Abstract
The invention discloses a method for manufacturing a drill bit with a cutting tool bit replaceable. The method includes the following steps: 1) arranging a tool bit fixing groove which is composed of an upper blade groove and a lower model groove, and arranging a positioning block at the middle position of the bottom of the model groove; 2) manufacturing the cutting tool bit, arranging a model body fixing portion matched with the model groove, and arranging a positioning groove at the bottom of the cutting tool bit; 3) respectively arranging a locking hole on two lateral walls of the model groove; 4) arranging a through hole on a model body; 5) manufacturing a locking screw; and 6) assembling the cutting drill bit on the tool bit fixing groove. The invention further discloses the drill bit with the cutting tool bit replaceable. By means of the matching of the model groove and the model body, the cutting tool bit can be replaced and can bear larger cutting force during working; and the locking hole is arranged on the model groove on the lower portion of the tool bit fixing groove, so that the height of the cutting portion can be reduced, spiral angles on the cutting tool bit and a drill body are enlarged, and the chip removal capability is enhanced.
Description
Technical field
The present invention relates to the drill bit technology of preparing, particularly a kind of preparation method of drill bit of replaceable cutter tip and goods.
Background technology
In the prior art, the cutting tip of drill bit commonly used and boring as an integral body when drill bit uses certain hour, just needs again sharpening after its cutting edge wearing and tearing.Refacing generally all is manual mill, so that some brill types that can improve stock-removing efficiency and prolongation cutter life are difficult to promote the use of; And drill bit generally can only be refaced more than 10 times, and remaining part can not be used, thereby has caused the waste of material and money.
Summary of the invention
For above-mentioned deficiency, the object of the invention is to, provide a kind of replaceable cutter tip drill bit the preparation method and with the drill bit of the replaceable cutter tip of the method preparation.
The technical scheme that the present invention adopts for achieving the above object is:
A kind of preparation method of drill bit of replaceable cutter tip is characterized in that: it may further comprise the steps:
1) body is bored in preparation one: a shank and operate portions are set; In described operate portions chip area is set, front end horizontally set one cutter head holddown groove; This cutter head holddown groove part falls into the slot part of operate portions chip area, and another part falls into the back of operate portions, and by upper blade groove and bottom
The type groove forms, and is described
The cross section of type groove is positioned at the middle part of operate portions cross section; In described
Type trench bottom centre position arranges the locating piece of a circular arc projection;
2) preparation one and the suitable cutter tip of described cutter head holddown groove: a cutting part and fixed part are set, described fixed part be with
The type groove is suitable
The type body; In described
Type body bottom arrange one with the suitable circular arc detent of the locating piece of described circular arc projection;
3) in described operate portions
Type groove two side arranges a locking hole, this locking hole with
Type groove two side is vertical, and its axis and operate portions axis are intersected and be horizontally through
Type groove two side;
4) in described cutter tip
Arrange on the type body one with the suitable through hole of described locking hole, the axis of this through hole is vertical with the axis of cutter tip and crossing;
5) the suitable lock screw of preparation one and described locking hole and through hole is used for locking described cutter tip;
6) described cutter tip is assembled on the described cutter head holddown groove the corresponding described insert groove of described cutting portion, described fixed part
Type body correspondence is described
Type groove, the corresponding described locating piece of described detent, and closely cooperate; Described lock screw is placed through in described locking hole and the through hole, thereby described cutter tip is fixed in the operate portions of boring body, form the drill bit of replaceable cutter tip.
It is further comprising the steps of:
7) in upper blade groove and the bottom of described cutter head holddown groove
Excessively ladder just is set between the type groove, between the cutting portion of described cutter tip and fixed part, suitable anti-excessively ladder is set; Both match, thereby cutter tip is fastenedly connected in the cutter head holddown groove.
Described step 1) chip area in is two chip areas straight or spiral.
The type groove with
The cooperation of type body has strengthened described cutter tip and the structural strength of boring body, make drill bit at work cutter tip can bear larger cutting force, make described cutter tip smear metal section,
The type groove and
Easy fracture not between the type body.The location of described smear metal cutter head bores the structural improvement of body with fixing, avoided at the cutting portion of smear metal cutter head locking hole being set, but locking hole is arranged on cutter head holddown groove bottom
On the type groove, thereby the height of cutting portion can be shortened, increase cutter tip and brill helical angle with it, strengthen the chip removal performance.
A kind of drill bit of implementing above-mentioned preparation method's replaceable cutter tip, it comprises brill body, cutter tip and lock screw, it is characterized in that: described brill body comprises shank and operate portions, and described operate portions is provided with chip area, and front end laterally is provided with a cutter head holddown groove; A described cutter head holddown groove part falls into the slot part of operate portions chip area, and another part falls into the back of operate portions, and by upper blade groove and bottom
The type groove forms, and is described
The cross section of type groove is positioned at the middle part of operate portions cross section; Described
Be provided with the locating piece of a circular arc projection in the middle of the type trench bottom, the two side is provided with a locking hole, this locking hole with
Type groove two side is vertical, and its axis and operate portions axis are intersected and be horizontally through
Type groove two side; Described cutter tip comprises cutting portion and fixed part, described fixed part be with
The type groove is suitable
The type body should
Type body bottom be provided with one with the suitable circular arc detent of the locating piece of described circular arc projection, both sides are provided with described
The suitable through hole of locking hole of type groove two side, the axis of this through hole is vertical with the axis of cutter tip and crossing; Described lock screw and described locking hole and through hole are suitable.
Upper blade groove and the bottom of described cutter head holddown groove
Be provided with just excessively ladder between the type groove; Be provided with the anti-excessively ladder suitable with the excessive ladder of cutter head holddown groove between the cutting portion of described cutter tip and the fixed part; Both match, thereby cutter tip is fastenedly connected in the cutter head holddown groove.
Chip area around the described operate portions is two chip areas straight or spiral.
Described locking hole is counter sink, and the head of lock screw is hidden in the counterbore, makes the performance of drill bit better.
The invention has the advantages that: the cutting tip of drill bit can adopt novel cutter material to make, and wears into the brill type that can improve stock-removing efficiency and prolong cutter life, bores body and then can adopt common steel preparation; Drill bit uses certain hour, and after wearing and tearing appearred in cutter tip, the cutter tip that more renews can keep the service behaviour of drill bit, bores the body recycling thereby reach; Improve working (machining) efficiency, the worry of not refacing reduces waste of material, cuts down finished cost; In addition,
The type groove with
The cooperation of type body has strengthened described cutter tip and the structural strength of boring body, make drill bit at work cutter tip can bear larger cutting force, make described cutter tip smear metal section,
The type groove and
Easy fracture not between the type body; Avoided at the cutting portion of smear metal cutter head locking hole being set, but locking hole has been arranged on cutter head holddown groove bottom
On the type groove, thereby the height of cutting portion can be shortened, increase cutter tip and brill helical angle with it, strengthen the chip removal performance.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the invention;
Fig. 2 is the fractionation structural representation of the embodiment of the invention;
Fig. 3 is the cutter tip schematic diagram of the embodiment of the invention;
Among the figure: 1. bore body; 2. cutter tip; 21. cutting portion; 22. fixed part; 23. detent; 24. through hole; 25. anti-excessively ladder; 3. lock screw; 4. shank; 5. operate portions; 6. chip area; 7. cutter head holddown groove; 71. insert groove; 72
The type groove; 73. locating piece; 74. locking hole; 75. just excessive ladder.
The specific embodiment
Referring to Fig. 1 to Fig. 3, the preparation method of the drill bit of a kind of replaceable cutter tip that the present embodiment provides, it may further comprise the steps:
1) body 1 is bored in preparation one: a shank 4 and operate portions 5 are set; In described operate portions 5 chip area 6 is set, front end horizontally set one cutter head holddown groove 7; These cutter head holddown groove 7 parts fall into the slot part of operate portions 5 chip areas 6, and another part falls into the back of operate portions 5, and by upper blade groove 71 and bottom
Type groove 72 forms, and is described
The cross section of type groove 72 is positioned at the middle part of operate portions 5 cross sections; In described
Centre position, type groove 72 bottom arranges the locating piece 73 of a circular arc projection; Wherein said chip area 6 is two chip areas straight or spiral.
2) the suitable cutter tip 2 of preparation one and described cutter head holddown groove 7: a cutting part 21 and fixed part 22 are set, described fixed part 22 be with
The type groove is suitable
The type body; In described
Type body bottom arrange one with the suitable circular arc detent 23 of the locating piece 73 of described circular arc projection;
3) in described operate portions 5
Type groove 72 two sides arrange a locking hole 74, this locking hole 74 with
Type groove 72 two sides are vertical, and its axis and operate portions 5 axis are intersected and are horizontally through
Type groove 72 two sides;
4) in described cutter tip 2
Arrange on the type body one with the suitable through hole 24 of described locking hole 74, the axis of this through hole 24 is vertical with the axis of cutter tip 2 and crossing;
5) the suitable lock screw 3 of preparation one and described locking hole 74 and through hole 24 is used for locking described cutter tip 2;
6) described cutter tip 2 is assembled on the described cutter head holddown groove 7 described cutting portion 21 corresponding described insert grooves 71, described fixed part 22
Type body correspondence is described
Type groove 72, described detent 23 corresponding described locating pieces 73, and closely cooperate; Described lock screw 3 is placed through in described locking hole 74 and the through hole 24, thereby described cutter tip 2 is fixed in the operate portions 5 of boring body, form the drill bit of replaceable cutter tip 2.
It is further comprising the steps of:
7) in upper blade groove 7l and the bottom of described cutter head holddown groove 7
Excessively ladder 75 just is set between the type groove 72, between the cutting portion 21 of described cutter tip 2 and fixed part 22, suitable anti-excessively ladder 25 is set; Both match, thereby cutter tip 2 is fastenedly connected in the cutter head holddown groove 7.
A kind of drill bit of implementing above-mentioned preparation method's replaceable cutter tip that the present embodiment provides, it comprises brill body 1, cutter tip 2 and lock screw 3, described brill body 1 comprises shank 4 and operate portions 5, and described operate portions 5 is provided with chip area 6, and front end laterally is provided with a cutter head holddown groove 7; Described cutter head holddown groove 7 parts fall into the slot part of operate portions 5 chip areas 6, and another part falls into the back of operate portions 5, and by upper blade groove 71 and bottom
Type groove 72 forms, and is described
The cross section of type groove 72 is positioned at the middle part of operate portions 5 cross sections; Described
Be provided with the locating piece 73 of a circular arc projection in the middle of type groove 72 bottoms, the two side is provided with a locking hole 74, this locking hole 74 with
Type groove 72 two sides are vertical, and its axis and operate portions 5 axis are intersected and are horizontally through
Type groove 72 two sides; Described cutter tip 2 comprises cutting portion 21 and fixed part 22, described fixed part 22 be with
Type groove 72 is suitable
The type body should
Type body bottom be provided with one with the suitable circular arc detent 23 of the locating piece 73 of described circular arc projection, both sides are provided with described
The through hole 24 that the locking hole 74 of type groove 72 two sides is suitable, the axis of this through hole 24 is vertical with the axis of cutter tip 2 and intersect; Described lock screw 3 is suitable with described locking hole 74 and through hole 24.
Described locking hole is counter sink, and the head of lock screw is hidden in the counterbore, makes the performance of drill bit better.
The cutting tip of drill bit can adopt novel cutter material to make, and wears into the brill type that can improve stock-removing efficiency and prolong cutter life, bores body and then can adopt common steel preparation; Drill bit uses certain hour, and after wearing and tearing appearred in cutter tip, the cutter tip that more renews can keep the service behaviour of drill bit, bores the body recycling thereby reach; Improve working (machining) efficiency, the worry of not refacing reduces waste of material, cuts down finished cost; In addition,
The type groove with
The cooperation of type body has strengthened described cutter tip and the structural strength of boring body, make drill bit at work cutter tip can bear larger cutting force, make described cutter tip smear metal section,
The type groove and
Easy fracture not between the type body; Avoided at the cutting portion of smear metal cutter head locking hole being set, but locking hole has been arranged on cutter head holddown groove bottom
On the type groove, thereby the height of cutting portion can be shortened, increase cutter tip and brill helical angle with it, strengthen the chip removal performance.
The present invention is not limited to above-mentioned embodiment, adopts the technical characterictic identical or approximate with the above embodiment of the present invention, and the preparation method of the drill bit of other replaceable cutter tips that obtain and goods, all within protection scope of the present invention.
Claims (8)
1. the preparation method of the drill bit of a replaceable cutter tip, it is characterized in that: it may further comprise the steps:
1) body is bored in preparation one: a shank and operate portions are set; In described operate portions chip area is set, front end horizontally set one cutter head holddown groove; This cutter head holddown groove part falls into the slot part of operate portions chip area, and another part falls into the back of operate portions, and by upper blade groove and bottom
The type groove forms, and is described
The cross section of type groove is positioned at the middle part of operate portions cross section; In described
Type trench bottom centre position arranges the locating piece of a circular arc projection;
2) preparation one and the suitable cutter tip of described cutter head holddown groove: a cutting part and fixed part are set, described fixed part be with
The type groove is suitable
The type body; In described
Type body bottom arrange one with the suitable circular arc detent of the locating piece of described circular arc projection;
3) in described operate portions
Type groove two side arranges a locking hole, this locking hole with
Type groove two side is vertical, and its axis and operate portions axis are intersected and be horizontally through
Type groove two side;
4) in described cutter tip
Arrange on the type body one with the suitable through hole of described locking hole, the axis of this through hole is vertical with the axis of cutter tip and crossing;
5) the suitable lock screw of preparation one and described locking hole and through hole is used for locking described cutter tip;
6) described cutter tip is assembled on the described cutter head holddown groove the corresponding described insert groove of described cutting portion, described fixed part
Type body correspondence is described
Type groove, the corresponding described locating piece of described detent, and closely cooperate; Described lock screw is placed through in described locking hole and the through hole, thereby described cutter tip is fixed in the operate portions of boring body, form the drill bit of replaceable cutter tip.
2. the preparation method of the drill bit of replaceable cutter tip according to claim 1, it is characterized in that: it is further comprising the steps of:
7) in upper blade groove and the bottom of described cutter head holddown groove
Excessively ladder just is set between the type groove, between the cutting portion of described cutter tip and fixed part, suitable anti-excessively ladder is set; Both match, thereby cutter tip is fastenedly connected in the cutter head holddown groove.
3. the preparation method of the drill bit of replaceable cutter tip according to claim 1, it is characterized in that: the chip area described step 1) is two chip areas straight or spiral.
4. drill bit of implementing one of claim 1-3 preparation method's replaceable cutter tip, it comprises brill body, cutter tip and lock screw, it is characterized in that: described brill body comprises shank and operate portions, and described operate portions is provided with chip area, and front end laterally is provided with a cutter head holddown groove; A described cutter head holddown groove part falls into the slot part of operate portions chip area, and another part falls into the back of operate portions, and by upper blade groove and bottom
The type groove forms, and is described
The cross section of type groove is positioned at the middle part of operate portions cross section; Described
Be provided with the locating piece of a circular arc projection in the middle of the type trench bottom, the two side is provided with a locking hole, this locking hole with
Type groove two side is vertical, and its axis and operate portions axis are intersected and be horizontally through
Type groove two side; Described cutter tip comprises cutting portion and fixed part, described fixed part be with
The type groove is suitable
The type body should
Type body bottom be provided with one with the suitable circular arc detent of the locating piece of described circular arc projection, both sides are provided with described
The suitable through hole of locking hole of type groove two side, the axis of this through hole is vertical with the axis of cutter tip and crossing; Described lock screw and described locking hole and through hole are suitable.
5. the drill bit of replaceable cutter tip according to claim 4 is characterized in that: upper blade groove and the bottom of described cutter head holddown groove
Be provided with just excessively ladder between the type groove.
6. the drill bit of replaceable cutter tip according to claim 4 is characterized in that: be provided with the anti-excessively ladder suitable with the excessive ladder of cutter head holddown groove between the cutting portion of described cutter tip and the fixed part.
7. the drill bit of replaceable cutter tip according to claim 4, it is characterized in that: the chip area of described operate portions is two chip areas straight or spiral.
8. the drill bit of replaceable cutter tip according to claim 4, it is characterized in that: described locking hole is counter sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103444471A CN102896479A (en) | 2012-09-17 | 2012-09-17 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103444471A CN102896479A (en) | 2012-09-17 | 2012-09-17 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102896479A true CN102896479A (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103444471A Pending CN102896479A (en) | 2012-09-17 | 2012-09-17 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102896479A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798065A2 (en) * | 1996-03-28 | 1997-10-01 | Mitsubishi Materials Corporation | Drill and throwaway tip |
| CN1364676A (en) * | 2000-12-22 | 2002-08-21 | 韩国冶金株式会社 | Drill bit water combined integrate inserts |
| CN1585682A (en) * | 2001-11-13 | 2005-02-23 | 山特维克公司 | Rotatable tool for chip removing machining and appurtenant cutting part |
| WO2006001551A1 (en) * | 2004-06-25 | 2006-01-05 | Taegutec Ltd. | Drill with disposable blade |
| CN201249283Y (en) * | 2008-07-01 | 2009-06-03 | 东莞市微创工具科技有限公司 | Novel twist drill |
| 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 |
| CN201338119Y (en) * | 2008-12-08 | 2009-11-04 | 镇江新区恒锋工具有限公司 | Drill bit with replaceable blade |
| CN201735846U (en) * | 2010-06-13 | 2011-02-09 | 东莞市微创工具科技有限公司 | Novel grinding-free drill |
| CN101992385A (en) * | 2010-10-26 | 2011-03-30 | 东莞市微创工具科技有限公司 | Wear-free drill cutting blade and manufacture method thereof |
| CN102151881A (en) * | 2011-04-25 | 2011-08-17 | 东莞市微创工具科技有限公司 | Preparation method of throw-away drill and throw-away drill |
-
2012
- 2012-09-17 CN CN2012103444471A patent/CN102896479A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798065A2 (en) * | 1996-03-28 | 1997-10-01 | Mitsubishi Materials Corporation | Drill and throwaway tip |
| CN1364676A (en) * | 2000-12-22 | 2002-08-21 | 韩国冶金株式会社 | Drill bit water combined integrate inserts |
| CN1585682A (en) * | 2001-11-13 | 2005-02-23 | 山特维克公司 | Rotatable tool for chip removing machining and appurtenant cutting part |
| WO2006001551A1 (en) * | 2004-06-25 | 2006-01-05 | Taegutec Ltd. | Drill with disposable blade |
| CN201249283Y (en) * | 2008-07-01 | 2009-06-03 | 东莞市微创工具科技有限公司 | Novel twist drill |
| CN201338119Y (en) * | 2008-12-08 | 2009-11-04 | 镇江新区恒锋工具有限公司 | Drill bit with replaceable blade |
| 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 |
| CN201735846U (en) * | 2010-06-13 | 2011-02-09 | 东莞市微创工具科技有限公司 | Novel grinding-free drill |
| CN101992385A (en) * | 2010-10-26 | 2011-03-30 | 东莞市微创工具科技有限公司 | Wear-free drill cutting blade and manufacture method thereof |
| CN102151881A (en) * | 2011-04-25 | 2011-08-17 | 东莞市微创工具科技有限公司 | Preparation method of throw-away drill and throw-away drill |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |
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| WD01 | Invention patent application deemed withdrawn after publication |