CN109108339A - A kind of spiral step drill bit of coating - Google Patents
A kind of spiral step drill bit of coating Download PDFInfo
- Publication number
- CN109108339A CN109108339A CN201811262612.2A CN201811262612A CN109108339A CN 109108339 A CN109108339 A CN 109108339A CN 201811262612 A CN201811262612 A CN 201811262612A CN 109108339 A CN109108339 A CN 109108339A
- Authority
- CN
- China
- Prior art keywords
- cutting portion
- step drill
- drill
- drill bit
- cutting
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/009—Stepped drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/36—Multi-layered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
-
- 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
Abstract
The invention discloses a kind of spiral step drill bits of coating comprising drill shank；Connect the step drill portion of drill shank；The apex point portion in step drill portion is connected, apex point portion has the top of tetragonous bevel-type；And spiral is set to step drill portion and extends to the chip space in apex point portion, chip space groove width is gradually big along drill shank by apex point portion；Wherein, step drill portion has multiple cutting portions of stepped change, cutting portion include favour the first cutting portion of drill shank axial direction with connect the first cutting portion and be parallel to the second axial cutting portion, the second cutting portion diameter of axle is greater than the first cutting portion diameter of axle, and cutting portion adheres to nanometer film layer by adhesive, the second cutting portion diameter of axle is incremented by along drill shank at 2mm gradient by apex point portion.The present invention is by improving the intensity of drill bit itself, reinforcing physical characteristic, avoid the trouble being prone to wear in nanometer film layer of the step drill portion deposition with adhesive in the past.
Description
Technical field
The invention belongs to bit technique fields, specifically, being related to a kind of spiral step drill bit of coating.
Background technique
Step drill is that one kind can replace more drill bits uses, processes different pore size as needed, and can realize macropore one
Secondary property processing, does not need the new drill of replacement, application is quite extensive.But current step drill is because of its step-characteristic, drilling into
It can be gradually worn out to the increase with access times, lack precision, and the drilling cuttings of volume is not easy to exclude, lack flexibility.
Summary of the invention
In view of this, technical problem to be solved by the invention is to provide a kind of spiral step drill bit of coating,
By step drill portion deposition have adhesive nanometer film layer, improve drill bit itself intensity, reinforce physical characteristic, avoid with
Toward the trouble being prone to wear.
In order to solve the above-mentioned technical problem, the invention discloses a kind of spiral step drill bits of coating comprising bores
Shank；Connect the step drill portion of drill shank；The apex point portion in step drill portion is connected, apex point portion has the top of tetragonous bevel-type；And
Spiral is set to step drill portion and extends to the chip space in apex point portion, and chip space groove width is gradually big along drill shank by apex point portion；Wherein,
Step drill portion has multiple cutting portions of stepped change, cutting portion include favour the first cutting portion of drill shank axial direction with connect
First cutting portion and it is parallel to the second axial cutting portion, the second cutting portion diameter of axle is greater than the first cutting portion diameter of axle, and cutting portion
Nanometer film layer is adhered to by adhesive, the second cutting portion diameter of axle is incremented by along drill shank at 2mm gradient by apex point portion.
According to an embodiment of the present invention, wherein above-mentioned chip space is set as opposite twice, and per pass chip space has
The multiple tracks chip removal raised line of two sides cutting portion is connected, chip removal raised line connects the second cutting portion middle section, and protrusion height is less than 1mm.
According to an embodiment of the present invention, wherein above-mentioned first cutting portion and drill shank are axially at 45 °.
According to an embodiment of the present invention, wherein above-mentioned first cutting portion axial width is 0.8mm ~ 1mm, the second cutting portion
Axial width is 6mm ~ 8mm.
According to an embodiment of the present invention, wherein above-mentioned adhesive be selected from metal mining powder adhesive, include nickel, tungsten, silicon,
Molybdenum, chromium, tin, at least one of palladium miberal powder.
According to an embodiment of the present invention, wherein above-mentioned nanometer film layer includes hypothallus and be set to hypothallus and be adhered to
Multiple diamond nano-particles of adhesive；Hypothallus is set as diamond, nickel, phosphorus, tungsten, silicon, molybdenum, in chromium or its alloy extremely
Few one kind.
According to an embodiment of the present invention, wherein the diameter of above-mentioned diamond nano-particles is 1nm ~ 200nm.
According to an embodiment of the present invention, wherein above-mentioned nanometer film layer further includes pure diamond film layer.
According to an embodiment of the present invention, wherein above-mentioned nanometer film layer is set to by chemical vapor deposition with adhesive and is cut
Cut portion.
Compared with prior art, the present invention can be obtained including following technical effect:
By having the nanometer film layer of adhesive in step drill portion deposition, the intensity of drill bit itself is improved, reinforces physical characteristic, keeps away
Exempt from the trouble being prone to wear in the past.
Certainly, implementing any of the products of the present invention must be not necessarily required to reach all the above technical effect simultaneously.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the spiral step drill bit schematic diagram of the coating of the embodiment of the present invention；
Fig. 2 is the cutting portion partial enlarged view of Fig. 1；
Fig. 3 be the embodiment of the present invention nanometer film deposition after schematic diagram.
Appended drawing reference
Drill shank 10, step drill portion 20, cutting portion 21, the first cutting portion 22, the second cutting portion 23, apex point portion 30, chip space 40,
Chip removal raised line 50, nanometer film layer 60, hypothallus 61, diamond nano-particles 62, pure diamond film layer 63, adhesive 70.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below in conjunction with accompanying drawings and embodiments, how the present invention is applied whereby
Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.
It is the spiral step drill bit schematic diagram of the coating of the embodiment of the present invention please also refer to Fig. 1 to Fig. 3, Fig. 1；Figure
2 be the cutting portion partial enlarged view of Fig. 1；Fig. 3 be the embodiment of the present invention nanometer film deposition after schematic diagram.As shown, one
The spiral step drill bit of kind coating includes drill shank 10；Connect the step drill portion 20 of drill shank 10；Connect step drill portion 20
Apex point portion 30, apex point portion 30 have tetragonous bevel-type it is top；And spiral is set to step drill portion 20 and extends to apex point portion
30 chip space 40,40 groove width of chip space are gradually big along drill shank 10 by apex point portion 30.In an embodiment of the present invention, drill shank
10 are used for clamping, and 30 top of apex point portion is at tetrapyamid shape, convenient for positioning feeding, the connected step drill portion 20 in centre into a ladder,
It realizes different pore size processing, improves multi-purpose performance.The chip space 40 of screw arrangement, which is realized, excludes detritus when feeding, improves
Drilling efficiency avoids blocking, and 40 groove width of chip space is gradually big along drill shank 10 by apex point portion 30, open rearward end amplification setting,
It is more advantageous to chip removal, more efficiently.
Step drill portion 20 has multiple cutting portions 21 of stepped change, and cutting portion 21 amplifies at ladder, including favours brill
The first axial cutting portion 22 of shank 10 with connect the first cutting portion 22 and be parallel to the second axial cutting portion 23, second cuts
23 diameter of axle of portion is greater than 22 diameter of axle of the first cutting portion, and cutting portion 20 adheres to nanometer film layer 60, the second cutting portion by adhesive 70
22 diameters of axle are incremented by along drill shank 10 at 2mm gradient by apex point portion 40.In the present embodiment, the first cutting portion 22 is located at cutting portion
21 front end, is obliquely installed, it is easier to realize the feeding of drilling, constantly deepen, could make the second smoothly processing of cutting portion 23
The hole of composite demand out, the second cutting portion 22 are incremented by 2mm, and even number arrangement, the diameter of axle gradually increases, the processing of composite multi aperture.
In addition, cutting portion 20 reinforces durability, nanometer film layer 60 also is arranged by chemical vapor deposition, receives to improve physical property
Rice film layer 60 reinforces adhesiveness using adhesive 70 simultaneously.
It is noted that the first cutting portion 22 is axial at 45 ° with drill shank 10, by perpendicular bisected, feeding is uniform.One
In embodiment, 22 axial width of the first cutting portion is 0.8mm ~ 1mm, and 23 axial width of the second cutting portion is 6mm ~ 8mm, is realized
The first stepping of first cutting portion 22, the deep processing of the second cutting portion 23, the two cooperation, aperture are accurate.
Chip space 40 is set as opposite twice, and per pass chip space 40 has the multiple tracks chip removal of connection two sides cutting portion 21
Raised line 50, chip removal raised line 50 connects 23 middle section of the second cutting portion, and protrusion height is less than 1mm.In an embodiment of the present invention,
Chip removal raised line 50 is cut perpendicular to axial arrangement, by screw type chip space 40 in the punishment of per pass cutting portion 21, can promote detritus
Removing, and protrusion height at most only 1mm will not generate obstruction, convenient and practical.
Adhesive 70 is selected from metal mining powder adhesive, includes nickel, tungsten, silicon, molybdenum, chromium, tin, at least one of palladium miberal powder.
It opposite can enhance intensity when bonding using metal mining powder adhesive, physical and chemical properties are all stable.
Nanometer film layer 60, which includes hypothallus 61, to be received with being set to hypothallus 61 and be adhered to multiple diamonds of adhesive 70
Rice grain 62；Hypothallus 61 is set as diamond, nickel, phosphorus, tungsten, silicon, molybdenum, at least one of chromium or its alloy.In this implementation
In mode, the diameter of diamond nano-particles 62 is 1nm ~ 200nm, is set as multiple, heap is overlying on adhesive 70, uses to pave and cut
Unevenness caused by when cutting 21 surface forming of portion, flat surface of covering sufficiently deposition substrate layer 61, hypothallus 61 could use metal
Film layer improves intensity.In addition, in other embodiments, nanometer film layer 60 further includes pure diamond film layer 63, compared with hypothallus
61, further strengthen hardness, Practical Stability.
Several preferred embodiments of the invention have shown and described in above description, but as previously described, it should be understood that the present invention
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be in this hair
In the protection scope of bright appended claims.
Claims (9)
1. a kind of spiral step drill bit of coating characterized by comprising
Drill shank；
Connect the step drill portion of the drill shank；
The apex point portion in the step drill portion is connected, the apex point portion has the top of tetragonous bevel-type；And
Spiral is set to the step drill portion and extends to the chip space in the apex point portion, and the chip space groove width is by the apex point
Portion is gradually big along the drill shank；
Wherein, the step drill portion has multiple cutting portions of stepped change, and the cutting portion includes favouring the drill shank
The first axial cutting portion with connect first cutting portion and be parallel to the second axial cutting portion, the second cutting portion axis
Diameter is greater than the first cutting portion diameter of axle, and the cutting portion adheres to nanometer film layer, the second cutting portion axis by adhesive
Diameter is incremented by along the drill shank at 2mm gradient by the apex point portion.
2. the spiral step drill bit of coating according to claim 1, which is characterized in that the wherein chip space setting
For opposite twice, and chip space described in per pass has the multiple tracks chip removal raised line of cutting portion described in connection two sides, and the chip removal is convex
Item connects second cutting portion middle section, and protrusion height is less than 1mm.
3. the spiral step drill bit of coating according to claim 1, which is characterized in that wherein first cutting portion
It is axially at 45 ° with the drill shank.
4. the spiral step drill bit of coating according to claim 1, which is characterized in that wherein first cutting portion
Axial width is 0.8mm ~ 1mm, and the second cutting portion axial width is 6mm ~ 8mm.
5. the spiral step drill bit of coating according to claim 1, which is characterized in that wherein described adhesive is selected from
Metal mining powder adhesive includes nickel, tungsten, silicon, molybdenum, chromium, tin, at least one of palladium miberal powder.
6. the spiral step drill bit of coating according to claim 1, which is characterized in that the wherein nanometer film layer packet
It includes hypothallus and is set to the hypothallus and is adhered to multiple diamond nano-particles of described adhesive；The hypothallus is set
It is set to diamond, nickel, phosphorus, tungsten, silicon, molybdenum, at least one of chromium or its alloy.
7. the spiral step drill bit of coating according to claim 6, which is characterized in that the wherein diamond nano
The diameter of particle is 1nm ~ 200nm.
8. the spiral step drill bit of coating according to claim 6, which is characterized in that wherein the nanometer film layer is also
Including pure diamond film layer.
9. the spiral step drill bit of coating according to claim 1, which is characterized in that wherein the nanometer film layer with
Described adhesive is set to the cutting portion by chemical vapor deposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262612.2A CN109108339A (en) | 2018-10-27 | 2018-10-27 | A kind of spiral step drill bit of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262612.2A CN109108339A (en) | 2018-10-27 | 2018-10-27 | A kind of spiral step drill bit of coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108339A true CN109108339A (en) | 2019-01-01 |
Family
ID=64855774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262612.2A Withdrawn CN109108339A (en) | 2018-10-27 | 2018-10-27 | A kind of spiral step drill bit of coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020173029A1 (en) * | 2019-02-25 | 2020-09-03 | 汇专科技集团股份有限公司 | Cutting tool having double-headed chamfering function and cutting edge portion thereof |
-
2018
- 2018-10-27 CN CN201811262612.2A patent/CN109108339A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020173029A1 (en) * | 2019-02-25 | 2020-09-03 | 汇专科技集团股份有限公司 | Cutting tool having double-headed chamfering function and cutting edge portion thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190101 |
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| WW01 | Invention patent application withdrawn after publication |