CN201249283Y - Novel twist drill - Google Patents
Novel twist drill Download PDFInfo
- Publication number
- CN201249283Y CN201249283Y CNU2008201262162U CN200820126216U CN201249283Y CN 201249283 Y CN201249283 Y CN 201249283Y CN U2008201262162 U CNU2008201262162 U CN U2008201262162U CN 200820126216 U CN200820126216 U CN 200820126216U CN 201249283 Y CN201249283 Y CN 201249283Y
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- cutting head
- cutting
- fluted drill
- novel
- shape
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Abstract
The utility model provides a novel twist drill which comprises a drill body and a cutting head arranged at the front end of the drill body and provided with a cutting edge. The front end of the drill body is provided with a positioning groove in which the cutting head is detachably arranged. By detachably arranging the cutting head on the drill body, the twist drill with a replaceable head has simple and reasonable structure; a cutting part is not loosened easily; when the cutting edge is abraded, the cutting head can be replaced by a new cutting head by taking down the abraded cutting head, the operation is simple, and material waste is avoided, therefore, the problem that the regrinding of the cutting edge is difficult in the prior art is effectively solved, the drilling and cutting efficiency is improved, and the novel twist drill has good practical value.
Description
Technical field
The utility model relates to a kind of fluted drill, especially relates to a kind of novel fluted drill of replaceable cutting blade.
Background technology
In the prior art, conventional fluted drill comprises the cylindrical cutter body that has at least one spiral flute and land, and wherein flute and land follow helical angle to the preceding edge of a knife.Fluted drill the rear end can in the chuck of for example hand-operated tools or drilling machine, fix.The edge of a knife of drill bit is a conical shaped, has cutting edge, and a pair of thus radially relative cutting edge is defined by the guide face of trough of belt land and the side that forms the drill bit of trough of belt land end face.The periphery of each trough of belt land all has radial projection portion in its forward position, and radial projection portion is called land, cylindrical land differently and supports the limit.Support the length of edge trough of belt land to extend for these two.
This fluted drill commonly used because brill body and drill bit are one, after the drill bit blade weares and teares, just needs sharpening again, because some outstanding brill types such as multiple-cutting-edge pointed drill type, S type brill type etc. compare complexity, the comparison difficulty of refacing, the price of refacing height.And because processing is now used high speed steel, carbide alloy etc. to requiring cutter,, both increased user's cost, also caused the waste of material and money if use whole boring.Therefore how processability is good, structure firm, the fluted drill of head-changeable becomes the problem that the personage of each side makes great efforts to solve.
The utility model content
The technical problems to be solved in the utility model is: at existing fluted drill price height, the difficult problem of refacing, design a kind of novel fluted drill, only need change cutting head when this is drilled in bit wear, can be repeatedly used and bore body.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of novel fluted drill, it comprises the cutting head that has cutting edge of boring body and being arranged on described brill body front end, and described brill body front end is provided with a location groove, and cutting head is arranged in the detent removably.
The shape of the corresponding described cutting head part with described brill body of described cutting head shape is corresponding.
Described detent comprises two side, bottom surface and drives screw hole on the two side, described cutting head comprises two fronts, two back, two lands, a bottom surface and cutting edge, described two back and described two side shape are complementary, the bottom surface of described cutting head and the bottom shape of described detent match, also be provided with at least one hole on the described cutting head, this hole is corresponding with described screw hole position and be connected with screw.
The bottom surface of described detent is provided with a positioning block, and there is a locating hole that matches with described locating piece the bottom surface of described cutting head.
Described two-edged belt shape is spirality.
Described cutting edge can be Any shape.
The cross section of described cutting head is the S type.
The beneficial effects of the utility model are: interchangeable the fluted drill that the utility model provides is by with cutting head being installed on one's body the brill removably, simple and reasonable, and cutting portion is not easy to become flexible, when cutting blade weares and teares, only cutting head can be taken off and change new cutting head, simple to operate, avoid the waste of material, thereby solved the difficult problem of refacing that prior art exists effectively, improve drilling efficiency, have good practical value.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 bores the body structure schematic diagram among Fig. 1;
Fig. 3 is a cutting head structural representation among Fig. 1;
Fig. 4 is the upward view of Fig. 3;
Fig. 5 is the front view of Fig. 3.
The specific embodiment
Extremely shown in Figure 5 as Fig. 1, a kind of novel fluted drill, it comprises the cutting head 1 of boring body 2 and being arranged on its front end, bore body 2 twist, its front end is provided with a location groove 21, cutting head 1 is arranged in the detent 21 removably, detent 21 comprises two side 22, bottom surface 23 and the screw hole of driveing on two side 22 24, cutting head 1 comprises two fronts 11, two back 12 (one side only is shown among the figure), two lands 13, one bottom surface 15 and cutting edge 16, two lands 12 are screw type, its helical angle is identical with the spiral angle that bores body 2, cutting edge 16 can be Any shape, two back 12 of cutting head 1 are complementary with two side 22 shapes of detent 21, bottom surface 15 matches with bottom surface 23 shapes of groove 21, also be provided with porosely 14 on the cutting head 1, this hole 14 is corresponding with screw hole 24 positions and be connected with the screw (not shown).
The precision of position when guaranteeing that cutting head 1 is installed, the bottom surface of described groove 21 also is provided with a positioning block 26, and the bottom surface of cutting head 1 is provided with a locating slot 17, and the cooperation of locating piece 26 and locating slot 17 has guaranteed that cutting head 1 is installed in the precision when boring body groove 21.
In order to make the utility model fluted drill be more conducive to chip removal when working, the cross section of cutting head 1 is chosen as the S type, and is identical with the shape of boring the corresponding part in body 2 cross sections.
The utility model is not limited to above-mentioned embodiment, as long as any embodiment that can realize the utility model purpose is all within protection domain of the present utility model.
Claims (6)
1. novel fluted drill, it comprises the cutting head that has cutting edge of boring body and being arranged on described brill body front end, it is characterized in that, and described brill body front end is provided with a location groove, and described cutting head is arranged in this detent removably.
2. novel fluted drill according to claim 1 is characterized in that: described cutting head shape is corresponding with the shape of the part of the corresponding described cutting head of described brill body.
3. novel fluted drill according to claim 2, it is characterized in that: described detent comprises two side, bottom surface and drives screw hole on the two side, described cutting head comprises two fronts, two back, two lands, a bottom surface and cutting edge, described two back and described two side shape are complementary, the bottom surface of described detent and the bottom shape of described cutting head match, also be provided with at least one hole on the described cutting head, this hole is corresponding with described screw hole position and be connected with screw.
4. novel fluted drill according to claim 3 is characterized in that: the bottom surface of described detent is provided with a positioning block, and the bottom surface of described cutting head is provided with a locating slot that matches with described locating piece.
5. novel fluted drill according to claim 3 is characterized in that: described two-edged belt shape is spirality.
6. according to the arbitrary described novel fluted drill of claim 1 to 5, it is characterized in that: the cross section of described cutting head is the S type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201262162U CN201249283Y (en) | 2008-07-01 | 2008-07-01 | Novel twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201262162U CN201249283Y (en) | 2008-07-01 | 2008-07-01 | Novel twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201249283Y true CN201249283Y (en) | 2009-06-03 |
Family
ID=40744955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201262162U Expired - Fee Related CN201249283Y (en) | 2008-07-01 | 2008-07-01 | Novel twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201249283Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075773A1 (en) * | 2008-12-31 | 2010-07-08 | 东莞市微创工具科技有限公司 | Method for manufacturing grinding-free drill bit and drill bit |
| 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 |
| CN102847994A (en) * | 2012-09-29 | 2013-01-02 | 句容富达教学设备科技有限公司 | Disposable multi-edge twist drill |
| CN102896479A (en) * | 2012-09-17 | 2013-01-30 | 苏茂均 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
| CN108969053A (en) * | 2018-07-24 | 2018-12-11 | 华南理工大学 | The embedded rapid cooling orthopaedics fluted drill of one kind and manufacturing method |
| CN114226812A (en) * | 2021-12-03 | 2022-03-25 | 镇江金业工具有限公司 | Self-advancing efficient drill bit structure |
-
2008
- 2008-07-01 CN CNU2008201262162U patent/CN201249283Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075773A1 (en) * | 2008-12-31 | 2010-07-08 | 东莞市微创工具科技有限公司 | Method for manufacturing grinding-free drill bit and drill bit |
| 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 |
| CN102896479A (en) * | 2012-09-17 | 2013-01-30 | 苏茂均 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
| CN102847994A (en) * | 2012-09-29 | 2013-01-02 | 句容富达教学设备科技有限公司 | Disposable multi-edge twist drill |
| CN108969053A (en) * | 2018-07-24 | 2018-12-11 | 华南理工大学 | The embedded rapid cooling orthopaedics fluted drill of one kind and manufacturing method |
| CN114226812A (en) * | 2021-12-03 | 2022-03-25 | 镇江金业工具有限公司 | Self-advancing efficient drill bit structure |
| CN114226812B (en) * | 2021-12-03 | 2023-01-13 | 镇江金业工具有限公司 | Self-propelled efficient drill bit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20120701 |