CN206200209U - A kind of cubic boron nitride screw-on cutter - Google Patents
A kind of cubic boron nitride screw-on cutter Download PDFInfo
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- CN206200209U CN206200209U CN201621111734.8U CN201621111734U CN206200209U CN 206200209 U CN206200209 U CN 206200209U CN 201621111734 U CN201621111734 U CN 201621111734U CN 206200209 U CN206200209 U CN 206200209U
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- knife
- shear blade
- screw
- handle
- boron nitride
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Abstract
The utility model discloses a kind of cubic boron nitride screw-on cutter, including screw-on cutter body, the screw-on cutter body includes handle of a knife, it is connected to the knife bar of described handle of a knife one end, located at the shear blade of knife bar front end, the knife bar includes bar core, circumference sword, the handle of a knife, knife bar, shear blade is along same central axis rotary work, the knife bar is provided with the helicla flute for chip removal, the helicla flute is from shear blade to handle of a knife directional smoothing transition, the knife bar is Polycrystalline Cubic Boron Nitride, the handle of a knife uses Hardmetal materials, the knife bar is welded and fixed with the handle of a knife and is connected, the shear blade is provided with rake face, chip pocket, two relative rake faces wide are connected with each other by narrowing rake face, the chip pocket is communicated with helicla flute.This cubic boron nitride screw-on cutter cutting edge is sharp, excellent cutting performance, and the surface quality of machined surface is high, greatly reduces production cost.
Description
Technical field
The utility model is related to a kind of milling cutter, in particular it relates to a kind of cubic boron nitride screw-on cutter.
Background technology
In the last few years, with the development of science and technology, requirement of the machinery manufacturing industry to machining accuracy is also more and more higher, milling cutter is made
It is one kind machining Common Use Tools, its structure not only decides the intensity of itself, service life, further determines and get out workpiece hole
Error size and precision just.
In space flight, aviation, military project, automotive field, largely using composite, to processing the dimensional accuracy in aperture and bright and clean
Degree requirement is higher, while technical requirements and service life more and more higher to process tool in itself, the wolfram steel that prior art is used
Although cutter can meet means suitable, short life, processing high-hardness steel abrasion ratio itself is very fast, particularly to iron content
It is poor using plain cutter processing finish when the high rigidity new material such as alloy of element is processed, cause the aperture of product
Dimensional uniformity is not good, and fraction defective is higher, has a strong impact on the product service life that machining accuracy processes shorter.And diamond milling
Knife has the compatibility to ferro element due to diamond, is not suitable for the processing of the material containing ferro element.Further, since existing
Milling cutter construction design is unreasonable, influences the intensity and service life of itself.
Utility model content
The purpose of this utility model is to provide a kind of cubic boron nitride screw-on cutter, to solve to be carried in above-mentioned background technology
The problem for going out.
To achieve the above object, the utility model provides following technical scheme：A kind of cubic boron nitride screw-on cutter, including
Screw-on cutter body, the screw-on cutter body include handle of a knife, be connected to the knife bar of described handle of a knife one end, located at knife bar front end
Shear blade, the knife bar includes bar core, circumference sword, and the handle of a knife, knife bar, shear blade are along same central axis rotary work, the knife
Bar is provided with the helicla flute for chip removal, and from shear blade to handle of a knife directional smoothing transition, the knife bar is polycrystalline cubic to the helicla flute
Boron nitride material, the handle of a knife uses Hardmetal materials, the knife bar to be welded and fixed with the handle of a knife and be connected, and the shear blade sets
There are rake face, chip pocket, two relative rake faces wide are by narrowing rake face interconnection, the chip pocket and helicla flute phase
It is logical.
Preferably, the shear blade anterior angle of the shear blade is 2 °.Shear blade anterior angle is the angle of shear blade rake face and axis.It is preferred that
, the relief angle of shear blade first of the shear blade is 10 °.Preferably, the relief angle of shear blade second of the shear blade is 16 °.So, can be the bottom of by
Sword carries out axial process processing.
Preferably, the circumference angle of cutting edge of the circumference sword is 12 °.Circumference angle of cutting edge be circumference sword rake face and point of a knife with
The angle that the line at center is formed, it is the key factor for influenceing slotting cutter cutting ability.
Preferably, the relief angle of circumference sword first of the circumference sword is 12 °.This angle, the cubic boron nitride helical milling
The cutting edge of knife circumference sword is both than sharp, and the intensity of its cutting edge is again stronger, make in processing it is not empty it is easy occur vibration, it is turned and
The situation of tipping.
Preferably, the relief angle of circumference sword second of the circumference sword is 24 °.Protected when second relief angle of circumference sword cuts milling cutter
There is sufficient gap between card workpiece and milling cutter.
Compared with prior art, the beneficial effects of the utility model are：This cubic boron nitride screw-on cutter makes full use of poly-
Brilliant cubic boron nitride material hardness is high, small with machined material affinity, by Structure Improvement Design, even if accomplishing to be cut material
Material hardness is very high, and situations such as be also not in turned, tipping, vibration, while having accomplished that cutting edge is sharp, excellent cutting performance is added
The surface quality in work face is high, with chip it is steady, applied widely, machining accuracy is high the features such as, greatly reduce production cost.
Brief description of the drawings
Fig. 1 is the positive structure diagram of the utility model embodiment；
Fig. 2 is the cross-sectional view of the utility model embodiment knife bar；
Fig. 3 is the left view structural representation of the utility model embodiment shear blade；
Fig. 4 is the structural representation of B-B sections in Fig. 3；
Fig. 5 is the partial enlargement structural representation in K portions in Fig. 3；
Wherein：1. handle of a knife, 2. knife bar, 3. helicla flute, 4. circumference sword, 5. shear blade, 6. bar core, 7. chip pocket, it is 8. wide before knife
Face, 9. narrows rake face, 10. shear blade anterior angle, 11. the first relief angles of shear blade, 12. the second relief angles of shear blade, 13. circumference angle of cutting edge, 14.
The relief angle of circumference sword first, 15. the second relief angles of circumference sword.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Shown in reference picture 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of cubic boron nitride screw-on cutter, including screw-on cutter body,
Knife bar 2, the shear blade 5 located at the front end of knife bar 2, institute that the screw-on cutter body includes handle of a knife 1, is connected to the one end of the handle of a knife 1
Stating knife bar 2 includes bar core 6, circumference sword 4, and the handle of a knife 1, knife bar 2, shear blade 5 are along same central axis rotary work, the knife bar
2 are provided with the helicla flute 3 for chip removal, and from shear blade 5 to the directional smoothing transition of handle of a knife 1, the knife bar 2 is glomerocryst to the helicla flute 3
Cubic boron nitride material, the handle of a knife 1 uses Hardmetal materials, the knife bar 2 to be welded and fixed with the handle of a knife 1 and be connected, institute
State shear blade 5 and be provided with rake face, chip pocket 7, two relative rake faces wide 8 are connected with each other by narrowing rake face 9, it is described to hold bits
Groove 7 is communicated with helicla flute 3.
Shown in reference picture 3, Fig. 4, the shear blade anterior angle 10 of the shear blade 5 is 2 °.Shear blade anterior angle 10 is shear blade rake face and axle
The angle of line.First relief angle of shear blade 11 of the shear blade 5 is 10 °.Second relief angle of shear blade 12 of the shear blade 5 is 16 °.So,
Axial process can be carried out by shear blade 5 to process.
Shown in reference picture 2, the circumference angle of cutting edge 13 of the circumference sword 4 is 12 °.Before the circumference sword 4 of circumference angle of cutting edge 13
The angle that knife face is formed with point of a knife with the line at center, it is the key factor for influenceing slotting cutter cutting ability.The circumference sword 4
The first relief angle of circumference sword 14 be 12 °.This angle, the cutting edge of the cubic boron nitride screw-on cutter circumference sword 4 both compared
Sharp, the intensity of its cutting edge is again stronger, makes not empty easy appearance vibration, turned and tipping situation in processing.The circumference sword 4
The second relief angle of circumference sword 15 be 24 °.Ensure have between workpiece and milling cutter fully when the second relief angle of circumference sword 15 cuts milling cutter
Gap.
Experiment shows that the cubic boron nitride screw-on cutter of the utility model example example can reach common wolfram steel milling cutter 30-
In 50 times of life-spans, effectively reduce tool changing, toolsetting, to work such as knives, improve operating efficiency, its cost only has the 5-10 of wolfram steel milling cutter
Times, significantly reduce production cost.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of cubic boron nitride screw-on cutter, including screw-on cutter body, it is characterised in that the screw-on cutter body includes
Handle of a knife, the knife bar for being connected to described handle of a knife one end, the shear blade located at knife bar front end, the knife bar include bar core, circumference sword, described
, along same central axis rotary work, the knife bar is provided with the helicla flute for chip removal, the helicla flute for handle of a knife, knife bar, shear blade
From shear blade to handle of a knife directional smoothing transition, the knife bar is Polycrystalline Cubic Boron Nitride, and the handle of a knife uses hard alloy material
Material, the knife bar is welded and fixed with the handle of a knife and is connected, and the shear blade is provided with rake face, chip pocket, two relative preceding knives wide
Face is connected with each other by narrowing rake face, and the chip pocket is communicated with helicla flute.
2. cubic boron nitride screw-on cutter according to claim 1, it is characterised in that the shear blade anterior angle of the shear blade is
2°。
3. cubic boron nitride screw-on cutter according to claim 2, it is characterised in that the relief angle of shear blade first of the shear blade
It is 10 °.
4. cubic boron nitride screw-on cutter according to claim 3, it is characterised in that the relief angle of shear blade second of the shear blade
It is 16 °.
5. the cubic boron nitride screw-on cutter according to claim 1,2,3 or 4, it is characterised in that the circle of the circumference sword
Rake angle is 12 °.
6. cubic boron nitride screw-on cutter according to claim 5, it is characterised in that the circumference sword first of the circumference sword
Relief angle is 12 °.
7. cubic boron nitride screw-on cutter according to claim 6, it is characterised in that the circumference sword second of the circumference sword
Relief angle is 24 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111734.8U CN206200209U (en) | 2016-10-11 | 2016-10-11 | A kind of cubic boron nitride screw-on cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111734.8U CN206200209U (en) | 2016-10-11 | 2016-10-11 | A kind of cubic boron nitride screw-on cutter |
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| Publication Number | Publication Date |
|---|---|
| CN206200209U true CN206200209U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621111734.8U Active CN206200209U (en) | 2016-10-11 | 2016-10-11 | A kind of cubic boron nitride screw-on cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637330A (en) * | 2018-05-04 | 2018-10-12 | 大连理工大学 | A kind of forward direction of composite material-feed reversing method for helically milling hole |
-
2016
- 2016-10-11 CN CN201621111734.8U patent/CN206200209U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637330A (en) * | 2018-05-04 | 2018-10-12 | 大连理工大学 | A kind of forward direction of composite material-feed reversing method for helically milling hole |
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