CN204396997U - A kind of corn fluted drill - Google Patents
A kind of corn fluted drill Download PDFInfo
- Publication number
- CN204396997U CN204396997U CN201420854703.6U CN201420854703U CN204396997U CN 204396997 U CN204396997 U CN 204396997U CN 201420854703 U CN201420854703 U CN 201420854703U CN 204396997 U CN204396997 U CN 204396997U
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- CN
- China
- Prior art keywords
- corn
- cutting edge
- fluted drill
- side cutting
- drill
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of corn fluted drill, comprise drill bit (1), neck (2), drillstock (3), it is characterized in that, the apex point (4) that described drill bit (1) comprises drill end, the side cutting edge (5) be connected with apex point, be positioned at chip area (6) between side cutting edge (5), described side cutting edge (5) is arranged chip dividing groove (9), described chip dividing groove (11) is in the upper clock wise spirals arrangement of side cutting edge (5); The threaded hole (8) that it is rotating shaft that described drill bit (1) inside comprises with center line (7), described drillstock (3) center line (7) place arranges the cooling fluid hand-hole (10) be connected with described threaded hole (8).The utility model improves the formation of fluted drill chip, curling and eliminating situation greatly, and not easily produces vibration, extends the life-span of fluted drill, improves hole machined efficiency.
Description
Technical field
The utility model relates to a kind of corn fluted drill, belongs to Cutting Tool Technology Used on NC field.
Background technology
Drilling processing is one of modal processing method of Current mechanical manufacture field, is also machining maximum operation consuming time, occupies very high ratio, apparently higher than Milling Process in metal cutting process operation.On some flexible production line and machining center, drilling process occupies higher ratio.Drilling processing relies on its efficient, economic advantage, plays key effect at production fields such as machinery, electronics.Due to the relative complexity of fluted drill structure and drilling process, wearing and tearing, the damaged form of fluted drill have very large randomness and diversity, and its life dispersivity is very large, are all the basic problems of drilling research all the time.
The Fast Wearing of cutting edge is the key factor of restriction drilling quality and bit life, and chip removal is major influence factors wherein, and studies in the past and carried out at apex point place for the improvement of chip removal effect is many in implementing.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of corn fluted drill, and offside cutting blade structure has improved fluted drill chip removal problem.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A kind of corn fluted drill, comprise drill bit, neck, drillstock, it is characterized in that, the apex point that described drill bit comprises drill end, the side cutting edge be connected with apex point, chip area between the cutting edge of side, described side cutting edge arranges chip dividing groove, and described chip dividing groove is clock wise spirals arrangement on the cutting edge of side; It is the threaded hole of rotating shaft that described drill bit internal comprises with center line, and described drillstock centerline arranges the cooling fluid hand-hole be connected with described threaded hole.
Aforesaid a kind of corn fluted drill, is characterized in that, described fluted drill entirety is carbide alloy.
Aforesaid a kind of corn fluted drill, is characterized in that, described drillstock is staight shank.
Aforesaid a kind of corn fluted drill, is characterized in that, described threaded hole is double helical bore.
Aforesaid a kind of corn fluted drill, is characterized in that, described apex point place apex angle ss is 130 °.
Aforesaid a kind of corn fluted drill, is characterized in that, described side cutting edge pitch angle alpha will is 30 °, is the arrangement of counter-clockwise helical direction.
Aforesaid a kind of corn fluted drill, is characterized in that, described chip dividing groove is invert shape.
The beneficial effect that the utility model reaches: a kind of corn fluted drill of the utility model, adopts carbide alloy material, substantially prolongs cutter life; Adopt inner double helical bore inner-cooled to dispel the heat, can ensure that tool temperature can not be too high, cause bit wear, can chip removal be accelerated simultaneously, prevent the generation of built-up edge, all have beneficial effect to cutter life and workpiece to be machined surface roughness.Side cutting edge is provided with chip dividing groove, makes the chip of cutting become narrow strip; Because side cutting edge has sizable helical angle, chip becomes spiral wound, namely discharges gradually from chip area in working angles; Because the chip of cutting becomes narrow strip, vibration not easily produces.This use is novel improves the formation of fluted drill chip, curling and eliminating situation greatly, and not easily produces vibration, extends the life-span of fluted drill, improves hole machined efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of corn fluted drill structural representation;
The implication of Reference numeral in figure: 1-drill bit, 2-neck, 3-drillstock, 4-apex point, 5-side cutting edge, 6-chip area, 7-center line, 8-threaded hole, 10-chip dividing groove, 11-cooling fluid hand-hole, α-side cutting edge helical angle, β-apex point place drift angle, ε-chip dividing groove angle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of corn fluted drill, comprise drill bit 1, neck 2, drillstock 3, it is characterized in that, the apex point 4 that described drill bit 1 comprises drill end, the side cutting edge 5 be connected with apex point, chip area 6 between side cutting edge 5, described side cutting edge 5 arranges chip dividing groove 9, and described chip dividing groove 11 is clock wise spirals arrangement on side cutting edge 5; The threaded hole 8 that it is rotating shaft that described drill bit 1 inside comprises with center line 7, described drillstock 3 center line 7 place arranges the cooling fluid hand-hole 10 be connected with described threaded hole 8.
Described fluted drill entirety is carbide alloy.
Described drillstock 3 is staight shank.
Described threaded hole 8 is double helical bore.
Described apex point 4 place apex angle ss is 130 °.
Described side cutting edge 5 pitch angle alpha will is 30 °, is the arrangement of counter-clockwise helical direction.
Described chip dividing groove 9 is in invert shape, and chip dividing groove angle ε is 90 °, and the angle that namely minimum point of chip dividing groove 11 cross section and two end points of openend form is 90 °.
A kind of corn fluted drill of the utility model, adopts carbide alloy material, substantially prolongs cutter life; Adopt inner double helical bore inner-cooled to dispel the heat, can ensure that tool temperature can not be too high, cause bit wear, can chip removal be accelerated simultaneously, prevent the generation of built-up edge, all have beneficial effect to cutter life and workpiece to be machined surface roughness.Side cutting edge is provided with chip dividing groove, makes the chip of cutting become narrow strip; Because side cutting edge has sizable helical angle, chip becomes spiral wound, namely discharges gradually from chip area in working angles; Because the chip of cutting becomes narrow strip, vibration not easily produces.This use is novel improves the formation of fluted drill chip, curling and eliminating situation greatly, and not easily produces vibration, extends the life-span of fluted drill, improves hole machined efficiency.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (7)
1. a corn fluted drill, comprise drill bit (1), neck (2), drillstock (3), it is characterized in that, the apex point (4) that described drill bit (1) comprises drill end, the side cutting edge (5) be connected with apex point, be positioned at chip area (6) between side cutting edge (5), described side cutting edge (5) is arranged chip dividing groove (9), described chip dividing groove (11) is in the upper clock wise spirals arrangement of side cutting edge (5); The threaded hole (8) that it is rotating shaft that described drill bit (1) inside comprises with center line (7), described drillstock (3) center line (7) place arranges the cooling fluid hand-hole (10) be connected with described threaded hole (8).
2. a kind of corn fluted drill according to claim 1, is characterized in that, described fluted drill entirety is carbide alloy.
3. a kind of corn fluted drill according to claim 1, is characterized in that, described drillstock (3) is staight shank.
4. a kind of corn fluted drill according to claim 1, is characterized in that, described threaded hole (8) is double helical bore.
5. a kind of corn fluted drill according to claim 1, is characterized in that, described apex point (4) place apex angle ss is 130 °.
6. a kind of corn fluted drill according to claim 1, is characterized in that, described side cutting edge (5) pitch angle alpha will is 30 °, is the arrangement of counter-clockwise helical direction.
7. a kind of corn fluted drill according to claim 1, is characterized in that, described chip dividing groove (9) is in invert shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854703.6U CN204396997U (en) | 2014-12-30 | 2014-12-30 | A kind of corn fluted drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854703.6U CN204396997U (en) | 2014-12-30 | 2014-12-30 | A kind of corn fluted drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204396997U true CN204396997U (en) | 2015-06-17 |
Family
ID=53420895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854703.6U Expired - Fee Related CN204396997U (en) | 2014-12-30 | 2014-12-30 | A kind of corn fluted drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204396997U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551121A (en) * | 2014-12-30 | 2015-04-29 | 苏州用朴合金工具有限公司 | Corn twist drill |
| CN107225272A (en) * | 2016-03-23 | 2017-10-03 | 江苏天工工具有限公司 | A kind of high speed steel twist drill used on lathe |
| CN113799192A (en) * | 2021-09-28 | 2021-12-17 | 湖南科技大学 | PCD composite cutter for cutting aramid fiber reinforced composite material |
-
2014
- 2014-12-30 CN CN201420854703.6U patent/CN204396997U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551121A (en) * | 2014-12-30 | 2015-04-29 | 苏州用朴合金工具有限公司 | Corn twist drill |
| CN107225272A (en) * | 2016-03-23 | 2017-10-03 | 江苏天工工具有限公司 | A kind of high speed steel twist drill used on lathe |
| CN113799192A (en) * | 2021-09-28 | 2021-12-17 | 湖南科技大学 | PCD composite cutter for cutting aramid fiber reinforced composite material |
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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 |
Granted publication date: 20150617 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |