CN203944887U - Double end fluted drill - Google Patents
Double end fluted drill Download PDFInfo
- Publication number
- CN203944887U CN203944887U CN201420386030.6U CN201420386030U CN203944887U CN 203944887 U CN203944887 U CN 203944887U CN 201420386030 U CN201420386030 U CN 201420386030U CN 203944887 U CN203944887 U CN 203944887U
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- Prior art keywords
- drill
- drillstock
- drill bit
- inlet opening
- screw thread
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- Expired - Fee Related
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- Drilling Tools (AREA)
Abstract
Double end fluted drill, comprises drill body and drill bit shell, and drill body comprises drillstock and drill body, and the two ends of drillstock are provided with drill body, and two drill bodies share a drillstock, has improved the economy that drill body is used, and has improved workman's operating efficiency simultaneously.Drillstock middle part offers an inlet opening, inlet opening extends to the inside of drillstock, the cooling bath that forms a circulation between two drill bodies is connected with inlet opening, can absorb a large amount of fricative heats, thereby is more conducive to the service life of the assurance prolongation drill bit of drill quality.The first screw thread is carved with in the position that is positioned at inlet opening on drillstock, the inner side foremost of drill bit shell be carved with drillstock on the second screw thread of the first screw thread tabling.Drill bit shell screws in the more convenient workman of drillstock its clamping is carried out to grinding operation.
Description
Technical field
The utility model relates to drill bit processing technique field, is specifically related to a kind of double end fluted drill.
Background technology
Drill bit, as an important component part in cutter for machining, is mainly used in the roughing in hole, and conventional drill bit mainly contains fluted drill, chit drill, centre drill etc.Along with the development of machinery industry, user has higher requirement to the crudy of product, process reliability, working (machining) efficiency etc.Fluted drill is as most widely used aperture knife tool, is the instrument of the circular hole of the rotary cutting workpiece by its relative fixed axis, because its chip pocket is similar to fried dough twist in the shape of a spiral, gains the name.
Traditional fluted drill is generally comprised of the drill body of cutting tip and the drillstock of retained part, in decorative craft, need to bore a large amount of holes, and in a process operation, often after drill bit blunt, need the drill bit more renewing to carry out follow-up grinding, therefore the economy of drill bit is bad, for this structure to drill bit, improves and produces twin tip drill.Twin tip drill because of its two ends be all drill body, be unfavorable for that very much workman clamps it, because of the sharp hand that easily hurts operator of its blade, and when bit and friction of workpiece can produce a large amount of heats, therefore use for a long time drill bit, drill bit is worn very serious, has had a strong impact on the service life of drill bit.
Therefore, the problems referred to above are the problems that should pay attention to and solve in the design and use process to fluted drill.
Utility model content
For the problem of above-mentioned existence, the utility model provides double end fluted drill.
Technical solution of the present utility model is: double end fluted drill, comprise drill body and drill bit shell, described drill body comprises drillstock and drill body, the two ends of described drillstock are provided with described drill body, described drillstock middle part offers an inlet opening, described inlet opening extends to the inside of drillstock, between described two drill bodies, form the cooling bath that a trap is closed, described cooling bath is connected with described inlet opening, the first screw thread is carved with in the position that is positioned at described inlet opening on described drillstock, the inner side foremost of described drill bit shell be carved with described drillstock on the second screw thread of the first screw thread tabling.
Further improvement of the utility model is: the cylindrical shell of described drill bit shell for adopting stainless steel to be made.
Further improvement of the utility model is: described drill body comprises apex point and brill body, and described brill is provided with at least two spiral chip pockets with it, and it is inner that the top of described cooling bath is positioned at described brill body.
Further improvement of the utility model is: the diameter of described brill body is constant, is not inverted cone shape and changes; The drift angle of described apex point is 110 ° ~ 130 °.
The utility model double end fluted drill, while using this drill bit, drill bit can be arranged on machine use also manually actuated, by inlet opening, cooling fluid is injected to cooling bath, cooling fluid is full of in cooling bath, then drill bit shell is screwed in, the first screw thread and the second screw thread carry out chimeric, block inlet opening, on drill bit casing drill body at one end, grinding operation is carried out in the one end of entangling without drill bit shell.After carrying out the drill bit blunt of grinding operation, then by drill bit casing on other end drill body, adopt other end drill body to grind.
The beneficial effects of the utility model are: adopt the design of twin tip drill, two drill bodies can be merged and use a drillstock, and at one end after drill body blunt, can adopt the other end to grind, improved the economy that drill body is used, simultaneously also easy to use, improved workman's operating efficiency.In drill body inside, be equipped with the circulating cooling groove that can hold cooling fluid, when drill body rotation and friction of workpiece, absorbed a large amount of fricative heats, thereby be more conducive to the service life of the assurance prolongation drill bit of drill quality.Simultaneously, in one end of untapped drill body, be equipped with drill bit shell, the first screw thread tabling on the second screw thread on drill bit shell and drillstock, blocked the inlet opening on drillstock, prevent that cooling fluid from leaking, being provided with drillstock also can pack into and on machine, grind use, the use of more convenient twin tip drill in craft simultaneously, the arranging of drill bit shell facilitates workman to clamp to grind, thereby, also be more conducive to workman, after drill body blunt, drill body carried out to reconditioning operation, two drill bodies of reconditioning simultaneously, have further improved the service efficiency of drill bit.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model double end fluted drill one end cover has drill bit shell.
Fig. 2 is the structural representation of the utility model double end fluted drill while not overlapping drill bit shell.
Wherein, 1-drill body, 2-drill bit shell, 3-drillstock, 4-drill body, 5-inlet opening, 6-cooling bath, 7-the first screw thread, 8-the second screw thread, 9-apex point, 10-bores body.
The specific embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail, this embodiment, only for explaining the utility model, does not form and limits protection domain of the present utility model.
As depicted in figs. 1 and 2, the present embodiment provides double end fluted drill, comprise drill body 1 and drill bit shell 2, described drill body 1 comprises drillstock 3 and drill body 4, the two ends of described drillstock 3 are provided with described drill body 4, described drillstock 3 middle parts offer an inlet opening 5, described inlet opening 5 extends to the inside of drillstock 3, between described two drill bodies 4, form the cooling bath 6 that a trap is closed, described cooling bath 6 is connected with described inlet opening 5, the first screw thread 7 is carved with in the position that is positioned at described inlet opening 5 on described drillstock 3, the inner side foremost of described drill bit shell 2 be carved with described drillstock 3 on the second screw thread 8 of the first screw thread 7 tablings.The cylindrical shell of described drill bit shell 2 for adopting stainless steel to be made.Described drill body 4 comprises apex point 9 and brill body 10, is provided with at least two spiral chip pockets on described brill body 10, and the top of described cooling bath 6 is positioned at described brill body 10 inside.The diameter of described brill body 10 is constant, is not inverted cone shape and changes; The drift angle of described apex point 9 is 110 ° ~ 130 °.
The present embodiment double end fluted drill, while using this drill bit, drill bit can be arranged on machine use also manually actuated, by inlet opening 5, cooling fluid is injected to cooling bath 6, cooling fluid is full of in cooling bath 6, then drill bit shell 2 is screwed in, the first screw thread 7 and the second screw thread 8 carry out chimeric, block inlet opening 5, on drill bit shell 2 covers drill body 4 at one end, grinding operation is carried out in the one end of entangling without drill bit shell 2.After carrying out the drill bit blunt of grinding operation, then drill bit shell 2 is enclosed within on other end drill body 4, adopts other end drill body 4 to grind.
The beneficial effect of the present embodiment is: adopt the design of twin tip drill, two drill bodies can be merged and use a drillstock, and at one end after drill body blunt, can adopt the other end to grind, improved the economy that drill body is used, simultaneously also easy to use, improved workman's operating efficiency.In drill body inside, be equipped with the circulating cooling groove that can hold cooling fluid, when drill body rotation and friction of workpiece, absorbed a large amount of fricative heats, thereby be more conducive to the service life of the assurance prolongation drill bit of drill quality.Simultaneously, in one end of untapped drill body, be equipped with drill bit shell, the first screw thread tabling on the second screw thread on drill bit shell and drillstock, blocked the inlet opening on drillstock, prevent that cooling fluid from leaking, being provided with drillstock also can pack into and on machine, grind use, the use of more convenient twin tip drill in craft simultaneously, the arranging of drill bit shell facilitates workman to clamp to grind, thereby, also be more conducive to workman, after drill body blunt, drill body carried out to reconditioning operation, two drill bodies of reconditioning simultaneously, have further improved the service efficiency of drill bit.
Claims (4)
1. double end fluted drill, it is characterized in that: comprise drill body (1) and drill bit shell (2), described drill body (1) comprises drillstock (3) and drill body (4), the two ends of described drillstock (3) are provided with described drill body (4), described drillstock (3) middle part offers an inlet opening (5), described inlet opening (5) extends to the inside of drillstock (3), between described two drill bodies (4), form the cooling bath (6) that a trap is closed, described cooling bath (6) is connected with described inlet opening (5), the first screw thread (7) is carved with in the position that is positioned at described inlet opening (5) on described drillstock (3), the inner side foremost of described drill bit shell (2) be carved with described drillstock (3) on second screw thread (8) of the first screw thread (7) tabling.
2. double end fluted drill according to claim 1, is characterized in that: the cylindrical shell of described drill bit shell (2) for adopting stainless steel to be made.
3. double end fluted drill according to claim 1, it is characterized in that: described drill body (4) comprises apex point (9) and bores body (10), on described brill body (10), be provided with at least two spiral chip pockets, the two ends of described cooling bath (6) are positioned at described in each bores body (10) inside.
4. double end fluted drill according to claim 3, is characterized in that: the diameter of described brill body (10) is constant, is not inverted cone shape and changes; Described apex point (9) drift angle is 110 ° ~ 130 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386030.6U CN203944887U (en) | 2014-07-14 | 2014-07-14 | Double end fluted drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386030.6U CN203944887U (en) | 2014-07-14 | 2014-07-14 | Double end fluted drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203944887U true CN203944887U (en) | 2014-11-19 |
Family
ID=51886946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420386030.6U Expired - Fee Related CN203944887U (en) | 2014-07-14 | 2014-07-14 | Double end fluted drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203944887U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526024A (en) * | 2014-12-22 | 2015-04-22 | 苏州用朴合金工具有限公司 | Circulation type internal cooling hard alloy drill bit tool |
| CN105834492A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Machining cutter with cutting fluid guide groove on surface for machine |
| CN108098023A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of double end diamond bit |
| CN108213474A (en) * | 2017-12-11 | 2018-06-29 | 深圳市鑫运祥精密刀具有限公司 | A kind of carbide bit and welding method |
| CN114289762A (en) * | 2021-12-30 | 2022-04-08 | 江苏雄鹰工具有限公司 | Composite titanium-plated drill bit structure with extremely high hardness |
-
2014
- 2014-07-14 CN CN201420386030.6U patent/CN203944887U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526024A (en) * | 2014-12-22 | 2015-04-22 | 苏州用朴合金工具有限公司 | Circulation type internal cooling hard alloy drill bit tool |
| CN105834492A (en) * | 2015-01-16 | 2016-08-10 | 鼎朋企业股份有限公司 | Machining cutter with cutting fluid guide groove on surface for machine |
| CN108098023A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of double end diamond bit |
| CN108213474A (en) * | 2017-12-11 | 2018-06-29 | 深圳市鑫运祥精密刀具有限公司 | A kind of carbide bit and welding method |
| CN114289762A (en) * | 2021-12-30 | 2022-04-08 | 江苏雄鹰工具有限公司 | Composite titanium-plated drill bit structure with extremely high hardness |
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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: 20141119 Termination date: 20200714 |