CN204584366U - A kind of fluted drill of interchangeable bit - Google Patents
A kind of fluted drill of interchangeable bit Download PDFInfo
- Publication number
- CN204584366U CN204584366U CN201520317344.5U CN201520317344U CN204584366U CN 204584366 U CN204584366 U CN 204584366U CN 201520317344 U CN201520317344 U CN 201520317344U CN 204584366 U CN204584366 U CN 204584366U
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- bit
- drill
- connecting hole
- fluted drill
- drill bit
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Abstract
The utility model provides a kind of fluted drill of interchangeable bit, belongs to cutting tool technical field.The problem that the drill bit inconvenience it solving existing fluted drill is changed.The fluted drill of this kind of interchangeable bit, comprise drillstock and bore body, the end of boring body is provided with removable drill bit, the inner of drill bit is axially arranged with joint pin, the end of boring body is axially arranged with the connecting hole matched with joint pin, the lateral wall of joint pin is provided with the convex body of some protrusions, and the sidewall of connecting hole is provided with the strip groove that matches with convex body and convex body is embedded in strip groove.The fluted drill of this interchangeable bit has the advantage being convenient to more bit change.
Description
Technical field
The utility model belongs to cutting tool field, relates to a kind of fluted drill, particularly a kind of fluted drill of interchangeable bit.
Background technology
The drill bit conventional at present form adopting one, namely the bar portion, cutting edge, chip pocket etc. of drill bit are an entirety, all use identical material to make more.After the cutting edge partial destruction of drill bit, whole drill bit just must sharpening or replacing again.Therefore consider cutting edge part and drill bit shaft portion to be made into independent detachable unit form, " head-exchangeable " form that namely those of ordinary skill in the art are usually alleged.This head-exchangeable part can be changed after wear very easily, thus make expensive cutter hub can use the longer time, and head-exchangeable part can by hard wear-resistant material, and such as carbide alloy is made, and cutter hub can by having larger flexible material, such as steel is made.But head-exchangeable structure often exists the problem such as structural instability, position error, therefore how excellent, stabilized structure, head-changeable the taper drill of processability becomes the problem that each side personage makes great efforts solution.
For this reason, Chinese patent discloses a kind of head-changeable hard alloy taper drill [Authorization Notice No. is CN 203578866 U], it comprises bores body and drillstock, bore body top and be provided with demountable bit, bore body top and have a screwed hole, screwed hole sidewall has tapped through hole, drill bit rear end is provided with a locating piece matched with screwed hole, locating piece outer wall is provided with screw thread, locating piece has the tapped blind hole matched with tapped through hole, bore body to be fixedly connected with screwed hole by locating piece with drill bit, brill body and drill bit are located by connecting by tapped through hole and tapped blind hole by screw.But the more sliding of the drill bit of this fluted drill comparatively bothers, drill bit is tightened onto bore with it time, easily hinder the both hands of operator, therefore change comparatively inconvenience.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the fluted drill of a kind of more bit change conveniently interchangeable bit.
The purpose of this utility model realizes by following technical proposal: a kind of fluted drill of interchangeable bit, comprise drillstock and bore body, the end of described brill body is provided with removable drill bit, it is characterized in that, the inner of described drill bit is axially arranged with joint pin, the end of described brill body is axially arranged with the connecting hole matched with described joint pin, the lateral wall of described joint pin is provided with the convex body of some protrusions, and the sidewall of described connecting hole is provided with the strip groove that matches with described convex body and described convex body is embedded in described strip groove.
In use, by joint pin is inserted in connecting hole, convex body is made to be embedded in strip groove, realize the connection of drill bit and drillstock, have easy to connect and connect the good advantage of effect, facilitating the advantage of the replacement of drill bit, when drill bit is along bad time, direct more bit change, re-uses and bores body and drillstock, saves cost.
In the fluted drill of above-mentioned a kind of interchangeable bit, described brill is worn and is provided with positioning through hole, is provided with alignment pin in described positioning through hole, and the inner of described alignment pin is resisted against on described joint pin.Be pressed on joint pin by alignment pin screw top, realize drill bit and the connection of boring body, there is location advantage comparatively reliably.
In the fluted drill of above-mentioned a kind of interchangeable bit, the middle part of described drillstock is axially arranged with the Cooling Holes run through, and described Cooling Holes is connected with described connecting hole.When connecting hole is connected with Cooling Holes, connecting hole both can connect drill bit, can use again as cooling chamber, reached dual effect.
In the fluted drill of above-mentioned a kind of interchangeable bit, the lateral wall of described brill body has the chip area arranged twist, and described chip area is provided with the apopore that some with described connecting hole is connected.Be provided with the apopore be connected with connecting hole in chip area, be convenient to, to drill bit and the cooling of boring body, to there is the good advantage of cooling effect.
In the fluted drill of above-mentioned a kind of interchangeable bit, described drill bit is fully grinding drill bit.
In the fluted drill of above-mentioned a kind of interchangeable bit, described drillstock is taper drillstock.Drillstock is taper drillstock, has locating effect good advantage when making it connect.
Compared with prior art, the fluted drill of this kind of interchangeable bit has the following advantages:
1, by joint pin is inserted in connecting hole, make convex body be embedded in strip groove, realize the connection of drill bit and drillstock, have easy to connect and connect the good advantage of effect, facilitating the advantage of the replacement of drill bit;
2, by shop bolt level pressure on joint pin, realize drill bit and bore the connection of body, there is location advantage comparatively reliably;
3, when connecting hole is connected with Cooling Holes, connecting hole both can connect drill bit, can use again as cooling chamber, reached dual effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of the fluted drill of this interchangeable bit.
Fig. 2 is the sectional structure schematic diagram of the fluted drill of this interchangeable bit.
In figure, 1, drillstock; 1a, Cooling Holes; 2, body is bored; 2a, connecting hole; 2b, strip groove; 2c, positioning through hole; 3, drill bit; 3a, joint pin; 3b, convex body; 3c, alignment pin; 4, chip area; 5, apopore.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As illustrated in fig. 1 and 2, a kind of fluted drill of interchangeable bit 3, comprise taper drillstock 1 and bore body 2, bore the end of body 2 to be provided with replaceable and to be the drill bit 3 of fully grinding, the inner of drill bit 3 is axially arranged with joint pin 3a, bore the end of body 2 and be axially arranged with the connecting hole 2a matched with joint pin 3a, the lateral wall of joint pin 3a is provided with 4 convex body 3b protruded, and the sidewall of connecting hole 2a is provided with the strip groove 2b that matches with convex body 3b and convex body 3b is embedded in described strip groove 2b.
Bore body 2 and be equipped with positioning through hole 2c, be provided with alignment pin 3c in described positioning through hole 2c, the inner of alignment pin 3c is resisted against on described joint pin 3a, is pressed on joint pin 3a by alignment pin 3c screw top, realize drill bit 3 and the connection of boring body 2, there is location advantage comparatively reliably.The middle part of drillstock 1 is axially arranged with the Cooling Holes 1a run through, and Cooling Holes 1a is connected with described connecting hole 2a.
The lateral wall of brill body 2 has the chip area 4 arranged twist, and described chip area 4 is provided with the apopore 5 that some with described connecting hole 2a is connected, and is convenient to, to drill bit 3 and the cooling of boring body 2, have the good advantage of cooling effect.
In use, by joint pin 3a is inserted in connecting hole 2a, convex body 3b is made to be embedded in strip groove 2b, realize drill bit 3 and the connection of drillstock 1, have easy to connect and connect the good advantage of effect, facilitating the advantage of the replacement of drill bit 3, when drill bit 3 is along bad time, direct more bit change 3, re-uses and bores body 2 and drillstock 1, saves cost.When connecting hole 2a is connected with Cooling Holes 1a, connecting hole 2a both can connect drill bit 3, can use again as cooling chamber, reached dual effect.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ drillstock 1, Cooling Holes 1a herein, bore the terms such as body 2, connecting hole 2a, strip groove 2b, positioning through hole 2c, drill bit 3, joint pin 3a, convex body 3b, alignment pin 3c, chip area 4, apopore 5, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (6)
1. the fluted drill of an interchangeable bit (3), comprise drillstock (1) and bore body (2), the end of described brill body (2) is provided with removable drill bit (3), it is characterized in that, the inner of described drill bit (3) is axially arranged with joint pin (3a), the end of described brill body (2) is axially arranged with the connecting hole (2a) matched with described joint pin (3a), the lateral wall of described joint pin (3a) is provided with the convex body (3b) of some protrusions, the sidewall of described connecting hole (2a) is provided with the strip groove (2b) that matches with described convex body (3b) and described convex body (3b) is embedded in described strip groove (2b).
2. the fluted drill of a kind of interchangeable bit (3) according to claim 1, it is characterized in that, described brill body (2) is equipped with positioning through hole (2c), be provided with alignment pin (3c) in described positioning through hole (2c), the inner of described alignment pin (3c) is resisted against on described joint pin (3a).
3. the fluted drill of a kind of interchangeable bit (3) according to claim 1, it is characterized in that, the middle part of described drillstock (1) is axially arranged with the Cooling Holes (1a) run through, and described Cooling Holes (1a) is connected with described connecting hole (2a).
4. the fluted drill of a kind of interchangeable bit (3) according to claim 1 or 2 or 3, it is characterized in that, the lateral wall of described brill body (2) has the chip area (4) arranged twist, described chip area (4) is provided with the apopore (5) that some with described connecting hole (2a) is connected.
5. the fluted drill of a kind of interchangeable bit (3) according to claim 1 or 2 or 3, is characterized in that, described drill bit (3) is fully grinding drill bit (3).
6. the fluted drill of a kind of interchangeable bit (3) according to claim 1 or 2 or 3, is characterized in that, described drillstock (1) is taper drillstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317344.5U CN204584366U (en) | 2015-05-14 | 2015-05-14 | A kind of fluted drill of interchangeable bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317344.5U CN204584366U (en) | 2015-05-14 | 2015-05-14 | A kind of fluted drill of interchangeable bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204584366U true CN204584366U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520317344.5U Expired - Fee Related CN204584366U (en) | 2015-05-14 | 2015-05-14 | A kind of fluted drill of interchangeable bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204584366U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522200A (en) * | 2015-12-28 | 2016-04-27 | 株洲钻石切削刀具股份有限公司 | High-precision drill bit |
| CN108655428A (en) * | 2017-03-27 | 2018-10-16 | 肯纳金属公司 | Modular rotary tool and modular tool system |
| CN108779802A (en) * | 2016-04-05 | 2018-11-09 | 舍弗勒技术股份两合公司 | Bearing race with insulating coating |
| 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 |
| US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
-
2015
- 2015-05-14 CN CN201520317344.5U patent/CN204584366U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522200A (en) * | 2015-12-28 | 2016-04-27 | 株洲钻石切削刀具股份有限公司 | High-precision drill bit |
| CN105522200B (en) * | 2015-12-28 | 2019-06-28 | 株洲钻石切削刀具股份有限公司 | A kind of high-precision drill bit |
| CN108779802A (en) * | 2016-04-05 | 2018-11-09 | 舍弗勒技术股份两合公司 | Bearing race with insulating coating |
| US10794427B2 (en) | 2016-04-05 | 2020-10-06 | Schaeffler Technologies AG & Co. KG | Bearing ring with insulating coating |
| CN108655428A (en) * | 2017-03-27 | 2018-10-16 | 肯纳金属公司 | Modular rotary tool and modular tool system |
| CN108655428B (en) * | 2017-03-27 | 2024-04-16 | 肯纳金属公司 | Modular rotary tool and modular tool system |
| 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 |
| US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160514 |