CN104551121A - Corn twist drill - Google Patents
Corn twist drill Download PDFInfo
- Publication number
- CN104551121A CN104551121A CN201410839528.8A CN201410839528A CN104551121A CN 104551121 A CN104551121 A CN 104551121A CN 201410839528 A CN201410839528 A CN 201410839528A CN 104551121 A CN104551121 A CN 104551121A
- Authority
- CN
- China
- Prior art keywords
- corn
- drill
- side cutting
- fluted drill
- cutting edge
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a corn twist drill. The corn twist drill comprises a drill bit (1), a neck (2) and a drill handle (3). The corn twist drill is characterized in that the drill bit (1) comprises a drill tip (4) at the top end of the drill bit, side cutting edges (5) connected with the drill tip, and chip discharging grooves (6) positioned among the side cutting edges (5); chip splitting grooves (9) are formed in the side cutting edges (5) and are arranged on the side cutting edges (5) in a clockwise spiral mode; the drill bit (1) internally comprises a spiral hole (8) taking the central line (7) as the rotation axis, and a coolant injection hole (10) connected with the spiral hole (8) is formed at the central line (7) of the drill handle (3). The corn twist drill has the advantages that forming, curling and discharging conditions of chips of the twist drill are improved greatly, vibration is not caused easily, service life of the twist drill is prolonged, and hole processing efficiency is improved.
Description
Technical field
The present invention relates to a kind of corn fluted drill, belong 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.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of corn fluted drill, offside cutting blade structure has improved fluted drill chip removal problem.
In order to realize above-mentioned target, the present invention 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 present invention reaches: a kind of corn fluted drill of the present invention, 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.The present invention 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 invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention 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 present invention, 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.The present invention 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 the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
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 |
|---|---|---|---|
| CN201410839528.8A CN104551121A (en) | 2014-12-30 | 2014-12-30 | Corn twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839528.8A CN104551121A (en) | 2014-12-30 | 2014-12-30 | Corn twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104551121A true CN104551121A (en) | 2015-04-29 |
Family
ID=53068774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410839528.8A Pending CN104551121A (en) | 2014-12-30 | 2014-12-30 | Corn twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104551121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008951A (en) * | 2017-04-21 | 2017-08-04 | 株洲钻石切削刀具股份有限公司 | A kind of drill reamer |
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
| CN110802260A (en) * | 2019-11-28 | 2020-02-18 | 中国航空工业标准件制造有限责任公司 | Drill bit for processing deep hole |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221386A (en) * | 1969-08-22 | 1971-02-03 | Aackersberg Mortensen | Improvements in and relating to twist drills |
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN101716691A (en) * | 2010-01-03 | 2010-06-02 | 阿诺（苏州）刀具有限公司 | Active-type chip-breaking drill bit |
| CN202278228U (en) * | 2011-10-26 | 2012-06-20 | 株洲钻石切削刀具股份有限公司 | Integral twist drill for processing titanium alloy |
| CN203459719U (en) * | 2013-08-28 | 2014-03-05 | 天工爱和特钢有限公司 | Chip separating drill bit |
| CN204018808U (en) * | 2014-08-14 | 2014-12-17 | 武汉泰尔斯刀具有限公司 | A kind of drill bit for deep hole processing |
| CN204396997U (en) * | 2014-12-30 | 2015-06-17 | 苏州用朴合金工具有限公司 | A kind of corn fluted drill |
-
2014
- 2014-12-30 CN CN201410839528.8A patent/CN104551121A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221386A (en) * | 1969-08-22 | 1971-02-03 | Aackersberg Mortensen | Improvements in and relating to twist drills |
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN101716691A (en) * | 2010-01-03 | 2010-06-02 | 阿诺（苏州）刀具有限公司 | Active-type chip-breaking drill bit |
| CN202278228U (en) * | 2011-10-26 | 2012-06-20 | 株洲钻石切削刀具股份有限公司 | Integral twist drill for processing titanium alloy |
| CN203459719U (en) * | 2013-08-28 | 2014-03-05 | 天工爱和特钢有限公司 | Chip separating drill bit |
| CN204018808U (en) * | 2014-08-14 | 2014-12-17 | 武汉泰尔斯刀具有限公司 | A kind of drill bit for deep hole processing |
| CN204396997U (en) * | 2014-12-30 | 2015-06-17 | 苏州用朴合金工具有限公司 | A kind of corn fluted drill |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008951A (en) * | 2017-04-21 | 2017-08-04 | 株洲钻石切削刀具股份有限公司 | A kind of drill reamer |
| CN107008951B (en) * | 2017-04-21 | 2019-10-29 | 株洲钻石切削刀具股份有限公司 | A kind of drill reamer |
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
| CN110802260A (en) * | 2019-11-28 | 2020-02-18 | 中国航空工业标准件制造有限责任公司 | Drill bit for processing deep hole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8657538B2 (en) | Milling cutter | |
| CN104070207B (en) | A kind of axis products deep hole processing drill bit and method | |
| US20160175944A1 (en) | Cutting tool with asymmetric structures on cutting teeth | |
| CN204396997U (en) | A kind of corn fluted drill | |
| CN104551121A (en) | Corn twist drill | |
| US20220362863A1 (en) | Spiral step twist drill bit | |
| CN106956049A (en) | A kind of bimetallic critical point drilling tool and its application method | |
| CN215090921U (en) | Cutter for milling laminated material profile of weak rigid member | |
| US10857601B2 (en) | Sawtooth structure with reversed cutting function and its drill series | |
| WO2021232823A1 (en) | Alloy tool bit twist drill | |
| JP2016144865A (en) | Processing method using drill and drill with coolant ejection hole | |
| CN104015211B (en) | The cutting working method of aramid fiber reinforced composite | |
| CN203887269U (en) | Deep hole machining drill bit for shaft products | |
| CN105081414B (en) | It is a kind of to head straight for gouge bit suitable for what rotating was processed | |
| CN204194895U (en) | A kind of multi-state spiral bit | |
| JP2014039963A (en) | Drill with coolant jet hole | |
| CN207695791U (en) | A kind of cutter of thread mill drilling | |
| CN107824884B (en) | For processing the step reamer of automobile parts | |
| CN103143750A (en) | Deep hole half-moon drill bit | |
| CN209110249U (en) | Hard alloy forms gouge bit | |
| CN112658357A (en) | Powder metallurgy die steel high efficiency milling cutter | |
| RU158628U1 (en) | END MILL WITH CHANGEABLE CUTTING PLATES WITH HIGH RESISTANCE | |
| CN201669432U (en) | Multi-tip thread cutter | |
| CN207431359U (en) | Improved milling cutter | |
| CN104551247A (en) | Wave-shaped helical-edge reamer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |